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tools/slub/slabinfo.c
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/* * Slabinfo: Tool to get reports about slabs * |
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* (C) 2007 sgi, Christoph Lameter |
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* (C) 2011 Linux Foundation, Christoph Lameter |
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* |
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* Compile with: |
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* * gcc -o slabinfo slabinfo.c */ #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <dirent.h> |
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#include <strings.h> |
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#include <string.h> #include <unistd.h> #include <stdarg.h> #include <getopt.h> #include <regex.h> |
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#include <errno.h> |
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#define MAX_SLABS 500 #define MAX_ALIASES 500 #define MAX_NODES 1024 struct slabinfo { char *name; int alias; int refs; int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu; int hwcache_align, object_size, objs_per_slab; int sanity_checks, slab_size, store_user, trace; int order, poison, reclaim_account, red_zone; |
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unsigned long partial, objects, slabs, objects_partial, objects_total; |
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unsigned long alloc_fastpath, alloc_slowpath; unsigned long free_fastpath, free_slowpath; unsigned long free_frozen, free_add_partial, free_remove_partial; unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill; unsigned long cpuslab_flush, deactivate_full, deactivate_empty; unsigned long deactivate_to_head, deactivate_to_tail; |
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unsigned long deactivate_remote_frees, order_fallback; |
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unsigned long cmpxchg_double_cpu_fail, cmpxchg_double_fail; unsigned long alloc_node_mismatch, deactivate_bypass; |
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unsigned long cpu_partial_alloc, cpu_partial_free; |
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int numa[MAX_NODES]; int numa_partial[MAX_NODES]; } slabinfo[MAX_SLABS]; struct aliasinfo { char *name; char *ref; struct slabinfo *slab; } aliasinfo[MAX_ALIASES]; int slabs = 0; |
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int actual_slabs = 0; |
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int aliases = 0; int alias_targets = 0; int highest_node = 0; char buffer[4096]; |
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int show_empty = 0; int show_report = 0; |
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int show_alias = 0; int show_slab = 0; int skip_zero = 1; int show_numa = 0; int show_track = 0; int show_first_alias = 0; int validate = 0; int shrink = 0; int show_inverted = 0; int show_single_ref = 0; int show_totals = 0; int sort_size = 0; |
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int sort_active = 0; |
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int set_debug = 0; int show_ops = 0; |
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int show_activity = 0; |
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/* Debug options */ int sanity = 0; int redzone = 0; int poison = 0; int tracking = 0; int tracing = 0; |
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int page_size; regex_t pattern; |
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static void fatal(const char *x, ...) |
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{ va_list ap; va_start(ap, x); vfprintf(stderr, x, ap); va_end(ap); |
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exit(EXIT_FAILURE); |
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} |
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static void usage(void) |
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{ |
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printf("slabinfo 4/15/2011. (c) 2007 sgi/(c) 2011 Linux Foundation. " |
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"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp] " |
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"-a|--aliases Show aliases " |
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"-A|--activity Most active slabs first " |
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"-d<options>|--debug=<options> Set/Clear Debug options " |
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"-D|--display-active Switch line format to activity " "-e|--empty Show empty slabs " |
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"-f|--first-alias Show first alias " |
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"-h|--help Show usage information " |
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"-i|--inverted Inverted list " "-l|--slabs Show slabs " |
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"-n|--numa Show NUMA information " |
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"-o|--ops Show kmem_cache_ops " |
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"-s|--shrink Shrink slabs " |
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"-r|--report Detailed report on single slabs " "-S|--Size Sort by size " |
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"-t|--tracking Show alloc/free information " "-T|--Totals Show summary information " |
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"-v|--validate Validate slabs " |
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"-z|--zero Include empty slabs " |
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"-1|--1ref Single reference " |
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" Valid debug options (FZPUT may be combined) " "a / A Switch on all debug options (=FZUP) " "- Switch off all debug options " "f / F Sanity Checks (SLAB_DEBUG_FREE) " "z / Z Redzoning " "p / P Poisoning " "u / U Tracking " "t / T Tracing " |
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); } |
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static unsigned long read_obj(const char *name) |
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{ FILE *f = fopen(name, "r"); if (!f) buffer[0] = 0; else { |
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if (!fgets(buffer, sizeof(buffer), f)) |
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buffer[0] = 0; fclose(f); if (buffer[strlen(buffer)] == ' ') buffer[strlen(buffer)] = 0; } return strlen(buffer); } /* * Get the contents of an attribute */ |
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static unsigned long get_obj(const char *name) |
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{ if (!read_obj(name)) return 0; return atol(buffer); } |
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static unsigned long get_obj_and_str(const char *name, char **x) |
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{ unsigned long result = 0; char *p; *x = NULL; if (!read_obj(name)) { x = NULL; return 0; } result = strtoul(buffer, &p, 10); while (*p == ' ') p++; if (*p) *x = strdup(p); return result; } |
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static void set_obj(struct slabinfo *s, const char *name, int n) |
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{ char x[100]; |
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FILE *f; |
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snprintf(x, 100, "%s/%s", s->name, name); |
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f = fopen(x, "w"); |
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if (!f) fatal("Cannot write to %s ", x); fprintf(f, "%d ", n); fclose(f); } |
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static unsigned long read_slab_obj(struct slabinfo *s, const char *name) |
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{ char x[100]; FILE *f; |
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size_t l; |
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snprintf(x, 100, "%s/%s", s->name, name); |
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f = fopen(x, "r"); if (!f) { buffer[0] = 0; l = 0; } else { l = fread(buffer, 1, sizeof(buffer), f); buffer[l] = 0; fclose(f); } return l; } |
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/* * Put a size string together */ |
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static int store_size(char *buffer, unsigned long value) |
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{ unsigned long divisor = 1; char trailer = 0; int n; if (value > 1000000000UL) { divisor = 100000000UL; trailer = 'G'; } else if (value > 1000000UL) { divisor = 100000UL; trailer = 'M'; } else if (value > 1000UL) { divisor = 100; trailer = 'K'; } value /= divisor; n = sprintf(buffer, "%ld",value); if (trailer) { buffer[n] = trailer; n++; buffer[n] = 0; } if (divisor != 1) { memmove(buffer + n - 2, buffer + n - 3, 4); buffer[n-2] = '.'; n++; } return n; } |
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static void decode_numa_list(int *numa, char *t) |
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{ int node; int nr; memset(numa, 0, MAX_NODES * sizeof(int)); |
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if (!t) return; |
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while (*t == 'N') { t++; node = strtoul(t, &t, 10); if (*t == '=') { t++; nr = strtoul(t, &t, 10); numa[node] = nr; if (node > highest_node) highest_node = node; } while (*t == ' ') t++; } } |
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static void slab_validate(struct slabinfo *s) |
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{ |
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if (strcmp(s->name, "*") == 0) return; |
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set_obj(s, "validate", 1); } |
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static void slab_shrink(struct slabinfo *s) |
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{ |
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if (strcmp(s->name, "*") == 0) return; |
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set_obj(s, "shrink", 1); } int line = 0; |
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static void first_line(void) |
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{ |
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if (show_activity) |
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printf("Name Objects Alloc Free %%Fast Fallb O CmpX UL "); |
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else printf("Name Objects Objsize Space " "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg "); |
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} /* * Find the shortest alias of a slab */ |
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static struct aliasinfo *find_one_alias(struct slabinfo *find) |
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{ struct aliasinfo *a; struct aliasinfo *best = NULL; for(a = aliasinfo;a < aliasinfo + aliases; a++) { if (a->slab == find && (!best || strlen(best->name) < strlen(a->name))) { best = a; if (strncmp(a->name,"kmall", 5) == 0) return best; } } |
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return best; |
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} |
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static unsigned long slab_size(struct slabinfo *s) |
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{ return s->slabs * (page_size << s->order); } |
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static unsigned long slab_activity(struct slabinfo *s) |
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{ return s->alloc_fastpath + s->free_fastpath + s->alloc_slowpath + s->free_slowpath; } |
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static void slab_numa(struct slabinfo *s, int mode) |
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{ int node; if (strcmp(s->name, "*") == 0) return; if (!highest_node) { printf(" %s: No NUMA information available. ", s->name); return; } if (skip_zero && !s->slabs) return; if (!line) { printf(" %-21s:", mode ? "NUMA nodes" : "Slab"); for(node = 0; node <= highest_node; node++) printf(" %4d", node); printf(" ----------------------"); for(node = 0; node <= highest_node; node++) printf("-----"); printf(" "); } printf("%-21s ", mode ? "All slabs" : s->name); for(node = 0; node <= highest_node; node++) { char b[20]; store_size(b, s->numa[node]); printf(" %4s", b); } printf(" "); if (mode) { printf("%-21s ", "Partial slabs"); for(node = 0; node <= highest_node; node++) { char b[20]; store_size(b, s->numa_partial[node]); printf(" %4s", b); } printf(" "); } line++; } |
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static void show_tracking(struct slabinfo *s) |
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{ printf(" %s: Kernel object allocation ", s->name); printf("----------------------------------------------------------------------- "); if (read_slab_obj(s, "alloc_calls")) |
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printf("%s", buffer); |
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else printf("No Data "); printf(" %s: Kernel object freeing ", s->name); printf("------------------------------------------------------------------------ "); if (read_slab_obj(s, "free_calls")) |
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printf("%s", buffer); |
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else printf("No Data "); } |
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static void ops(struct slabinfo *s) |
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{ if (strcmp(s->name, "*") == 0) return; if (read_slab_obj(s, "ops")) { printf(" %s: kmem_cache operations ", s->name); printf("-------------------------------------------- "); |
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printf("%s", buffer); |
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} else printf(" %s has no kmem_cache operations ", s->name); } |
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static const char *onoff(int x) |
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{ if (x) return "On "; return "Off"; } |
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static void slab_stats(struct slabinfo *s) |
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{ unsigned long total_alloc; unsigned long total_free; unsigned long total; if (!s->alloc_slab) return; total_alloc = s->alloc_fastpath + s->alloc_slowpath; total_free = s->free_fastpath + s->free_slowpath; if (!total_alloc) return; printf(" "); printf("Slab Perf Counter Alloc Free %%Al %%Fr "); printf("-------------------------------------------------- "); printf("Fastpath %8lu %8lu %3lu %3lu ", s->alloc_fastpath, s->free_fastpath, s->alloc_fastpath * 100 / total_alloc, s->free_fastpath * 100 / total_free); printf("Slowpath %8lu %8lu %3lu %3lu ", total_alloc - s->alloc_fastpath, s->free_slowpath, (total_alloc - s->alloc_fastpath) * 100 / total_alloc, s->free_slowpath * 100 / total_free); printf("Page Alloc %8lu %8lu %3lu %3lu ", s->alloc_slab, s->free_slab, s->alloc_slab * 100 / total_alloc, s->free_slab * 100 / total_free); printf("Add partial %8lu %8lu %3lu %3lu ", s->deactivate_to_head + s->deactivate_to_tail, s->free_add_partial, (s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc, s->free_add_partial * 100 / total_free); printf("Remove partial %8lu %8lu %3lu %3lu ", s->alloc_from_partial, s->free_remove_partial, s->alloc_from_partial * 100 / total_alloc, s->free_remove_partial * 100 / total_free); |
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printf("Cpu partial list %8lu %8lu %3lu %3lu ", s->cpu_partial_alloc, s->cpu_partial_free, s->cpu_partial_alloc * 100 / total_alloc, s->cpu_partial_free * 100 / total_free); |
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printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu ", s->deactivate_remote_frees, s->free_frozen, s->deactivate_remote_frees * 100 / total_alloc, s->free_frozen * 100 / total_free); printf("Total %8lu %8lu ", total_alloc, total_free); if (s->cpuslab_flush) printf("Flushes %8lu ", s->cpuslab_flush); |
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total = s->deactivate_full + s->deactivate_empty + |
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s->deactivate_to_head + s->deactivate_to_tail + s->deactivate_bypass; if (total) { printf(" Slab Deactivation Ocurrences %% "); printf("------------------------------------------------- "); printf("Slab full %7lu %3lu%% ", s->deactivate_full, (s->deactivate_full * 100) / total); printf("Slab empty %7lu %3lu%% ", s->deactivate_empty, (s->deactivate_empty * 100) / total); printf("Moved to head of partial list %7lu %3lu%% ", s->deactivate_to_head, (s->deactivate_to_head * 100) / total); printf("Moved to tail of partial list %7lu %3lu%% ", |
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s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total); |
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printf("Deactivation bypass %7lu %3lu%% ", s->deactivate_bypass, (s->deactivate_bypass * 100) / total); printf("Refilled from foreign frees %7lu %3lu%% ", s->alloc_refill, (s->alloc_refill * 100) / total); printf("Node mismatch %7lu %3lu%% ", s->alloc_node_mismatch, (s->alloc_node_mismatch * 100) / total); } if (s->cmpxchg_double_fail || s->cmpxchg_double_cpu_fail) printf(" Cmpxchg_double Looping ------------------------ "); printf("Locked Cmpxchg Double redos %lu Unlocked Cmpxchg Double redos %lu ", s->cmpxchg_double_fail, s->cmpxchg_double_cpu_fail); |
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} |
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static void report(struct slabinfo *s) |
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{ if (strcmp(s->name, "*") == 0) return; |
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printf(" Slabcache: %-20s Aliases: %2d Order : %2d Objects: %lu ", |
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s->name, s->aliases, s->order, s->objects); |
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if (s->hwcache_align) printf("** Hardware cacheline aligned "); if (s->cache_dma) printf("** Memory is allocated in a special DMA zone "); if (s->destroy_by_rcu) printf("** Slabs are destroyed via RCU "); if (s->reclaim_account) printf("** Reclaim accounting active "); printf(" Sizes (bytes) Slabs Debug Memory "); printf("------------------------------------------------------------------------ "); printf("Object : %7d Total : %7ld Sanity Checks : %s Total: %7ld ", s->object_size, s->slabs, onoff(s->sanity_checks), s->slabs * (page_size << s->order)); printf("SlabObj: %7d Full : %7ld Redzoning : %s Used : %7ld ", s->slab_size, s->slabs - s->partial - s->cpu_slabs, onoff(s->red_zone), s->objects * s->object_size); printf("SlabSiz: %7d Partial: %7ld Poisoning : %s Loss : %7ld ", page_size << s->order, s->partial, onoff(s->poison), s->slabs * (page_size << s->order) - s->objects * s->object_size); printf("Loss : %7d CpuSlab: %7d Tracking : %s Lalig: %7ld ", s->slab_size - s->object_size, s->cpu_slabs, onoff(s->store_user), (s->slab_size - s->object_size) * s->objects); printf("Align : %7d Objects: %7d Tracing : %s Lpadd: %7ld ", s->align, s->objs_per_slab, onoff(s->trace), ((page_size << s->order) - s->objs_per_slab * s->slab_size) * s->slabs); ops(s); show_tracking(s); slab_numa(s, 1); |
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slab_stats(s); |
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} |
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static void slabcache(struct slabinfo *s) |
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{ char size_str[20]; char dist_str[40]; char flags[20]; char *p = flags; |
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if (strcmp(s->name, "*") == 0) return; if (actual_slabs == 1) { report(s); return; } if (skip_zero && !show_empty && !s->slabs) return; if (show_empty && s->slabs) |
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return; store_size(size_str, slab_size(s)); |
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snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs, s->partial, s->cpu_slabs); |
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if (!line++) first_line(); if (s->aliases) *p++ = '*'; if (s->cache_dma) *p++ = 'd'; if (s->hwcache_align) *p++ = 'A'; if (s->poison) *p++ = 'P'; if (s->reclaim_account) *p++ = 'a'; if (s->red_zone) *p++ = 'Z'; if (s->sanity_checks) *p++ = 'F'; if (s->store_user) *p++ = 'U'; if (s->trace) *p++ = 'T'; *p = 0; |
8ff12cfc0 SLUB: Support for... |
660 661 662 663 664 665 |
if (show_activity) { unsigned long total_alloc; unsigned long total_free; total_alloc = s->alloc_fastpath + s->alloc_slowpath; total_free = s->free_fastpath + s->free_slowpath; |
9da4714a2 slub: slabinfo up... |
666 667 |
printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d %4ld %4ld ", |
8ff12cfc0 SLUB: Support for... |
668 669 670 |
s->name, s->objects, total_alloc, total_free, total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0, |
f715e6f15 slabinfo: Support... |
671 |
total_free ? (s->free_fastpath * 100 / total_free) : 0, |
9da4714a2 slub: slabinfo up... |
672 673 |
s->order_fallback, s->order, s->cmpxchg_double_fail, s->cmpxchg_double_cpu_fail); |
8ff12cfc0 SLUB: Support for... |
674 675 676 677 678 679 680 681 682 683 |
} else printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s ", s->name, s->objects, s->object_size, size_str, dist_str, s->objs_per_slab, s->order, s->slabs ? (s->partial * 100) / s->slabs : 100, s->slabs ? (s->objects * s->object_size * 100) / (s->slabs * (page_size << s->order)) : 100, flags); |
c09d87517 slub: add slabinf... |
684 |
} |
a87615b8f SLUB: slabinfo up... |
685 686 687 |
/* * Analyze debug options. Return false if something is amiss. */ |
b7ed698cc Documentation/: f... |
688 |
static int debug_opt_scan(char *opt) |
c09d87517 slub: add slabinf... |
689 |
{ |
a87615b8f SLUB: slabinfo up... |
690 691 692 693 694 695 696 697 698 699 |
if (!opt || !opt[0] || strcmp(opt, "-") == 0) return 1; if (strcasecmp(opt, "a") == 0) { sanity = 1; poison = 1; redzone = 1; tracking = 1; return 1; } |
c09d87517 slub: add slabinf... |
700 |
|
a87615b8f SLUB: slabinfo up... |
701 |
for ( ; *opt; opt++) |
0d24db337 slub: move slabin... |
702 |
switch (*opt) { |
a87615b8f SLUB: slabinfo up... |
703 704 705 706 707 708 709 710 711 712 |
case 'F' : case 'f': if (sanity) return 0; sanity = 1; break; case 'P' : case 'p': if (poison) return 0; poison = 1; break; |
c09d87517 slub: add slabinf... |
713 |
|
a87615b8f SLUB: slabinfo up... |
714 715 716 717 718 |
case 'Z' : case 'z': if (redzone) return 0; redzone = 1; break; |
c09d87517 slub: add slabinf... |
719 |
|
a87615b8f SLUB: slabinfo up... |
720 721 722 723 724 |
case 'U' : case 'u': if (tracking) return 0; tracking = 1; break; |
c09d87517 slub: add slabinf... |
725 |
|
a87615b8f SLUB: slabinfo up... |
726 727 728 729 730 731 732 733 734 |
case 'T' : case 't': if (tracing) return 0; tracing = 1; break; default: return 0; } return 1; |
c09d87517 slub: add slabinf... |
735 |
} |
b7ed698cc Documentation/: f... |
736 |
static int slab_empty(struct slabinfo *s) |
c09d87517 slub: add slabinf... |
737 |
{ |
a87615b8f SLUB: slabinfo up... |
738 739 |
if (s->objects > 0) return 0; |
c09d87517 slub: add slabinf... |
740 |
|
a87615b8f SLUB: slabinfo up... |
741 742 743 744 745 746 |
/* * We may still have slabs even if there are no objects. Shrinking will * remove them. */ if (s->slabs != 0) set_obj(s, "shrink", 1); |
c09d87517 slub: add slabinf... |
747 |
|
a87615b8f SLUB: slabinfo up... |
748 749 |
return 1; } |
b7ed698cc Documentation/: f... |
750 |
static void slab_debug(struct slabinfo *s) |
a87615b8f SLUB: slabinfo up... |
751 |
{ |
32f9306b1 slub: another sla... |
752 753 |
if (strcmp(s->name, "*") == 0) return; |
a87615b8f SLUB: slabinfo up... |
754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 |
if (sanity && !s->sanity_checks) { set_obj(s, "sanity", 1); } if (!sanity && s->sanity_checks) { if (slab_empty(s)) set_obj(s, "sanity", 0); else fprintf(stderr, "%s not empty cannot disable sanity checks ", s->name); } if (redzone && !s->red_zone) { if (slab_empty(s)) set_obj(s, "red_zone", 1); else fprintf(stderr, "%s not empty cannot enable redzoning ", s->name); } if (!redzone && s->red_zone) { if (slab_empty(s)) set_obj(s, "red_zone", 0); else fprintf(stderr, "%s not empty cannot disable redzoning ", s->name); } if (poison && !s->poison) { if (slab_empty(s)) set_obj(s, "poison", 1); else fprintf(stderr, "%s not empty cannot enable poisoning ", s->name); } if (!poison && s->poison) { if (slab_empty(s)) set_obj(s, "poison", 0); else fprintf(stderr, "%s not empty cannot disable poisoning ", s->name); } if (tracking && !s->store_user) { if (slab_empty(s)) set_obj(s, "store_user", 1); else fprintf(stderr, "%s not empty cannot enable tracking ", s->name); } if (!tracking && s->store_user) { if (slab_empty(s)) set_obj(s, "store_user", 0); else fprintf(stderr, "%s not empty cannot disable tracking ", s->name); } if (tracing && !s->trace) { if (slabs == 1) set_obj(s, "trace", 1); else fprintf(stderr, "%s can only enable trace for one slab at a time ", s->name); } if (!tracing && s->trace) set_obj(s, "trace", 1); |
c09d87517 slub: add slabinf... |
815 |
} |
b7ed698cc Documentation/: f... |
816 |
static void totals(void) |
c09d87517 slub: add slabinf... |
817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 |
{ struct slabinfo *s; int used_slabs = 0; char b1[20], b2[20], b3[20], b4[20]; unsigned long long max = 1ULL << 63; /* Object size */ unsigned long long min_objsize = max, max_objsize = 0, avg_objsize; /* Number of partial slabs in a slabcache */ unsigned long long min_partial = max, max_partial = 0, avg_partial, total_partial = 0; /* Number of slabs in a slab cache */ unsigned long long min_slabs = max, max_slabs = 0, avg_slabs, total_slabs = 0; /* Size of the whole slab */ unsigned long long min_size = max, max_size = 0, avg_size, total_size = 0; /* Bytes used for object storage in a slab */ unsigned long long min_used = max, max_used = 0, avg_used, total_used = 0; /* Waste: Bytes used for alignment and padding */ unsigned long long min_waste = max, max_waste = 0, avg_waste, total_waste = 0; /* Number of objects in a slab */ unsigned long long min_objects = max, max_objects = 0, avg_objects, total_objects = 0; /* Waste per object */ unsigned long long min_objwaste = max, max_objwaste = 0, avg_objwaste, total_objwaste = 0; /* Memory per object */ unsigned long long min_memobj = max, max_memobj = 0, avg_memobj, total_objsize = 0; /* Percentage of partial slabs per slab */ unsigned long min_ppart = 100, max_ppart = 0, avg_ppart, total_ppart = 0; /* Number of objects in partial slabs */ unsigned long min_partobj = max, max_partobj = 0, avg_partobj, total_partobj = 0; /* Percentage of partial objects of all objects in a slab */ unsigned long min_ppartobj = 100, max_ppartobj = 0, avg_ppartobj, total_ppartobj = 0; for (s = slabinfo; s < slabinfo + slabs; s++) { unsigned long long size; unsigned long used; unsigned long long wasted; unsigned long long objwaste; |
c09d87517 slub: add slabinf... |
877 878 879 880 881 882 883 884 885 886 887 888 |
unsigned long percentage_partial_slabs; unsigned long percentage_partial_objs; if (!s->slabs || !s->objects) continue; used_slabs++; size = slab_size(s); used = s->objects * s->object_size; wasted = size - used; objwaste = s->slab_size - s->object_size; |
c09d87517 slub: add slabinf... |
889 890 891 |
percentage_partial_slabs = s->partial * 100 / s->slabs; if (percentage_partial_slabs > 100) percentage_partial_slabs = 100; |
205ab99dd slub: Update stat... |
892 |
percentage_partial_objs = s->objects_partial * 100 |
c09d87517 slub: add slabinf... |
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 |
/ s->objects; if (percentage_partial_objs > 100) percentage_partial_objs = 100; if (s->object_size < min_objsize) min_objsize = s->object_size; if (s->partial < min_partial) min_partial = s->partial; if (s->slabs < min_slabs) min_slabs = s->slabs; if (size < min_size) min_size = size; if (wasted < min_waste) min_waste = wasted; if (objwaste < min_objwaste) min_objwaste = objwaste; if (s->objects < min_objects) min_objects = s->objects; if (used < min_used) min_used = used; |
205ab99dd slub: Update stat... |
914 915 |
if (s->objects_partial < min_partobj) min_partobj = s->objects_partial; |
c09d87517 slub: add slabinf... |
916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 |
if (percentage_partial_slabs < min_ppart) min_ppart = percentage_partial_slabs; if (percentage_partial_objs < min_ppartobj) min_ppartobj = percentage_partial_objs; if (s->slab_size < min_memobj) min_memobj = s->slab_size; if (s->object_size > max_objsize) max_objsize = s->object_size; if (s->partial > max_partial) max_partial = s->partial; if (s->slabs > max_slabs) max_slabs = s->slabs; if (size > max_size) max_size = size; if (wasted > max_waste) max_waste = wasted; if (objwaste > max_objwaste) max_objwaste = objwaste; if (s->objects > max_objects) max_objects = s->objects; if (used > max_used) max_used = used; |
205ab99dd slub: Update stat... |
939 940 |
if (s->objects_partial > max_partobj) max_partobj = s->objects_partial; |
c09d87517 slub: add slabinf... |
941 942 943 944 945 946 947 948 949 950 951 952 953 954 |
if (percentage_partial_slabs > max_ppart) max_ppart = percentage_partial_slabs; if (percentage_partial_objs > max_ppartobj) max_ppartobj = percentage_partial_objs; if (s->slab_size > max_memobj) max_memobj = s->slab_size; total_partial += s->partial; total_slabs += s->slabs; total_size += size; total_waste += wasted; total_objects += s->objects; total_used += used; |
205ab99dd slub: Update stat... |
955 |
total_partobj += s->objects_partial; |
c09d87517 slub: add slabinf... |
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 |
total_ppart += percentage_partial_slabs; total_ppartobj += percentage_partial_objs; total_objwaste += s->objects * objwaste; total_objsize += s->objects * s->slab_size; } if (!total_objects) { printf("No objects "); return; } if (!used_slabs) { printf("No slabs "); return; } /* Per slab averages */ avg_partial = total_partial / used_slabs; avg_slabs = total_slabs / used_slabs; avg_size = total_size / used_slabs; avg_waste = total_waste / used_slabs; avg_objects = total_objects / used_slabs; avg_used = total_used / used_slabs; avg_partobj = total_partobj / used_slabs; avg_ppart = total_ppart / used_slabs; avg_ppartobj = total_ppartobj / used_slabs; /* Per object object sizes */ avg_objsize = total_used / total_objects; avg_objwaste = total_objwaste / total_objects; avg_partobj = total_partobj * 100 / total_objects; avg_memobj = total_objsize / total_objects; printf("Slabcache Totals "); printf("---------------- "); printf("Slabcaches : %3d Aliases : %3d->%-3d Active: %3d ", slabs, aliases, alias_targets, used_slabs); store_size(b1, total_size);store_size(b2, total_waste); store_size(b3, total_waste * 100 / total_used); |
eefaca9c3 SLUB: slabinfo fixes |
1002 1003 |
printf("Memory used: %6s # Loss : %6s MRatio:%6s%% ", b1, b2, b3); |
c09d87517 slub: add slabinf... |
1004 1005 1006 |
store_size(b1, total_objects);store_size(b2, total_partobj); store_size(b3, total_partobj * 100 / total_objects); |
eefaca9c3 SLUB: slabinfo fixes |
1007 1008 |
printf("# Objects : %6s # PartObj: %6s ORatio:%6s%% ", b1, b2, b3); |
c09d87517 slub: add slabinf... |
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 |
printf(" "); printf("Per Cache Average Min Max Total "); printf("--------------------------------------------------------- "); store_size(b1, avg_objects);store_size(b2, min_objects); store_size(b3, max_objects);store_size(b4, total_objects); printf("#Objects %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_slabs);store_size(b2, min_slabs); store_size(b3, max_slabs);store_size(b4, total_slabs); printf("#Slabs %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_partial);store_size(b2, min_partial); store_size(b3, max_partial);store_size(b4, total_partial); printf("#PartSlab %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_ppart);store_size(b2, min_ppart); store_size(b3, max_ppart); store_size(b4, total_partial * 100 / total_slabs); |
eefaca9c3 SLUB: slabinfo fixes |
1037 1038 |
printf("%%PartSlab%10s%% %10s%% %10s%% %10s%% ", |
c09d87517 slub: add slabinf... |
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 |
b1, b2, b3, b4); store_size(b1, avg_partobj);store_size(b2, min_partobj); store_size(b3, max_partobj); store_size(b4, total_partobj); printf("PartObjs %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj); store_size(b3, max_ppartobj); store_size(b4, total_partobj * 100 / total_objects); |
eefaca9c3 SLUB: slabinfo fixes |
1051 1052 |
printf("%% PartObj%10s%% %10s%% %10s%% %10s%% ", |
c09d87517 slub: add slabinf... |
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 |
b1, b2, b3, b4); store_size(b1, avg_size);store_size(b2, min_size); store_size(b3, max_size);store_size(b4, total_size); printf("Memory %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_used);store_size(b2, min_used); store_size(b3, max_used);store_size(b4, total_used); printf("Used %10s %10s %10s %10s ", b1, b2, b3, b4); store_size(b1, avg_waste);store_size(b2, min_waste); store_size(b3, max_waste);store_size(b4, total_waste); printf("Loss %10s %10s %10s %10s ", b1, b2, b3, b4); printf(" "); printf("Per Object Average Min Max "); printf("--------------------------------------------- "); store_size(b1, avg_memobj);store_size(b2, min_memobj); store_size(b3, max_memobj); printf("Memory %10s %10s %10s ", b1, b2, b3); store_size(b1, avg_objsize);store_size(b2, min_objsize); store_size(b3, max_objsize); printf("User %10s %10s %10s ", b1, b2, b3); store_size(b1, avg_objwaste);store_size(b2, min_objwaste); store_size(b3, max_objwaste); printf("Loss %10s %10s %10s ", b1, b2, b3); } |
b7ed698cc Documentation/: f... |
1097 |
static void sort_slabs(void) |
c09d87517 slub: add slabinf... |
1098 1099 1100 1101 1102 1103 1104 1105 1106 |
{ struct slabinfo *s1,*s2; for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) { for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) { int result; if (sort_size) result = slab_size(s1) < slab_size(s2); |
8ff12cfc0 SLUB: Support for... |
1107 1108 |
else if (sort_active) result = slab_activity(s1) < slab_activity(s2); |
c09d87517 slub: add slabinf... |
1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 |
else result = strcasecmp(s1->name, s2->name); if (show_inverted) result = -result; if (result > 0) { struct slabinfo t; memcpy(&t, s1, sizeof(struct slabinfo)); memcpy(s1, s2, sizeof(struct slabinfo)); memcpy(s2, &t, sizeof(struct slabinfo)); } } } } |
b7ed698cc Documentation/: f... |
1125 |
static void sort_aliases(void) |
c09d87517 slub: add slabinf... |
1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 |
{ struct aliasinfo *a1,*a2; for (a1 = aliasinfo; a1 < aliasinfo + aliases; a1++) { for (a2 = a1 + 1; a2 < aliasinfo + aliases; a2++) { char *n1, *n2; n1 = a1->name; n2 = a2->name; if (show_alias && !show_inverted) { n1 = a1->ref; n2 = a2->ref; } if (strcasecmp(n1, n2) > 0) { struct aliasinfo t; memcpy(&t, a1, sizeof(struct aliasinfo)); memcpy(a1, a2, sizeof(struct aliasinfo)); memcpy(a2, &t, sizeof(struct aliasinfo)); } } } } |
b7ed698cc Documentation/: f... |
1149 |
static void link_slabs(void) |
c09d87517 slub: add slabinf... |
1150 1151 1152 1153 1154 |
{ struct aliasinfo *a; struct slabinfo *s; for (a = aliasinfo; a < aliasinfo + aliases; a++) { |
a87615b8f SLUB: slabinfo up... |
1155 |
for (s = slabinfo; s < slabinfo + slabs; s++) |
c09d87517 slub: add slabinf... |
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 |
if (strcmp(a->ref, s->name) == 0) { a->slab = s; s->refs++; break; } if (s == slabinfo + slabs) fatal("Unresolved alias %s ", a->ref); } } |
b7ed698cc Documentation/: f... |
1166 |
static void alias(void) |
c09d87517 slub: add slabinf... |
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 |
{ struct aliasinfo *a; char *active = NULL; sort_aliases(); link_slabs(); for(a = aliasinfo; a < aliasinfo + aliases; a++) { if (!show_single_ref && a->slab->refs == 1) continue; if (!show_inverted) { if (active) { if (strcmp(a->slab->name, active) == 0) { printf(" %s", a->name); continue; } } |
a87615b8f SLUB: slabinfo up... |
1186 1187 |
printf(" %-12s <- %s", a->slab->name, a->name); |
c09d87517 slub: add slabinf... |
1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 |
active = a->slab->name; } else printf("%-20s -> %s ", a->name, a->slab->name); } if (active) printf(" "); } |
b7ed698cc Documentation/: f... |
1198 |
static void rename_slabs(void) |
c09d87517 slub: add slabinf... |
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 |
{ struct slabinfo *s; struct aliasinfo *a; for (s = slabinfo; s < slabinfo + slabs; s++) { if (*s->name != ':') continue; if (s->refs > 1 && !show_first_alias) continue; a = find_one_alias(s); |
a87615b8f SLUB: slabinfo up... |
1211 1212 1213 1214 1215 1216 |
if (a) s->name = a->name; else { s->name = "*"; actual_slabs--; } |
c09d87517 slub: add slabinf... |
1217 1218 |
} } |
b7ed698cc Documentation/: f... |
1219 |
static int slab_mismatch(char *slab) |
c09d87517 slub: add slabinf... |
1220 1221 1222 |
{ return regexec(&pattern, slab, 0, NULL, 0); } |
b7ed698cc Documentation/: f... |
1223 |
static void read_slab_dir(void) |
c09d87517 slub: add slabinf... |
1224 1225 1226 1227 1228 1229 1230 1231 |
{ DIR *dir; struct dirent *de; struct slabinfo *slab = slabinfo; struct aliasinfo *alias = aliasinfo; char *p; char *t; int count; |
b6c24de77 slabinfo: fall ba... |
1232 |
if (chdir("/sys/kernel/slab") && chdir("/sys/slab")) |
a87615b8f SLUB: slabinfo up... |
1233 1234 |
fatal("SYSFS support for SLUB not active "); |
c09d87517 slub: add slabinf... |
1235 1236 1237 |
dir = opendir("."); while ((de = readdir(dir))) { if (de->d_name[0] == '.' || |
a87615b8f SLUB: slabinfo up... |
1238 1239 |
(de->d_name[0] != ':' && slab_mismatch(de->d_name))) continue; |
c09d87517 slub: add slabinf... |
1240 1241 |
switch (de->d_type) { case DT_LNK: |
0d24db337 slub: move slabin... |
1242 |
alias->name = strdup(de->d_name); |
fe3531786 tools, slub: Fix ... |
1243 |
count = readlink(de->d_name, buffer, sizeof(buffer)-1); |
c09d87517 slub: add slabinf... |
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 |
if (count < 0) fatal("Cannot read symlink %s ", de->d_name); buffer[count] = 0; p = buffer + count; while (p > buffer && p[-1] != '/') p--; alias->ref = strdup(p); alias++; break; case DT_DIR: if (chdir(de->d_name)) fatal("Unable to access slab %s ", slab->name); |
0d24db337 slub: move slabin... |
1260 |
slab->name = strdup(de->d_name); |
c09d87517 slub: add slabinf... |
1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 |
slab->alias = 0; slab->refs = 0; slab->aliases = get_obj("aliases"); slab->align = get_obj("align"); slab->cache_dma = get_obj("cache_dma"); slab->cpu_slabs = get_obj("cpu_slabs"); slab->destroy_by_rcu = get_obj("destroy_by_rcu"); slab->hwcache_align = get_obj("hwcache_align"); slab->object_size = get_obj("object_size"); slab->objects = get_obj("objects"); |
205ab99dd slub: Update stat... |
1271 1272 |
slab->objects_partial = get_obj("objects_partial"); slab->objects_total = get_obj("objects_total"); |
c09d87517 slub: add slabinf... |
1273 1274 1275 1276 1277 |
slab->objs_per_slab = get_obj("objs_per_slab"); slab->order = get_obj("order"); slab->partial = get_obj("partial"); slab->partial = get_obj_and_str("partial", &t); decode_numa_list(slab->numa_partial, t); |
f32143a2f Documentation/vm/... |
1278 |
free(t); |
c09d87517 slub: add slabinf... |
1279 1280 1281 1282 1283 1284 1285 |
slab->poison = get_obj("poison"); slab->reclaim_account = get_obj("reclaim_account"); slab->red_zone = get_obj("red_zone"); slab->sanity_checks = get_obj("sanity_checks"); slab->slab_size = get_obj("slab_size"); slab->slabs = get_obj_and_str("slabs", &t); decode_numa_list(slab->numa, t); |
f32143a2f Documentation/vm/... |
1286 |
free(t); |
c09d87517 slub: add slabinf... |
1287 1288 |
slab->store_user = get_obj("store_user"); slab->trace = get_obj("trace"); |
8ff12cfc0 SLUB: Support for... |
1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 |
slab->alloc_fastpath = get_obj("alloc_fastpath"); slab->alloc_slowpath = get_obj("alloc_slowpath"); slab->free_fastpath = get_obj("free_fastpath"); slab->free_slowpath = get_obj("free_slowpath"); slab->free_frozen= get_obj("free_frozen"); slab->free_add_partial = get_obj("free_add_partial"); slab->free_remove_partial = get_obj("free_remove_partial"); slab->alloc_from_partial = get_obj("alloc_from_partial"); slab->alloc_slab = get_obj("alloc_slab"); slab->alloc_refill = get_obj("alloc_refill"); slab->free_slab = get_obj("free_slab"); slab->cpuslab_flush = get_obj("cpuslab_flush"); slab->deactivate_full = get_obj("deactivate_full"); slab->deactivate_empty = get_obj("deactivate_empty"); slab->deactivate_to_head = get_obj("deactivate_to_head"); slab->deactivate_to_tail = get_obj("deactivate_to_tail"); slab->deactivate_remote_frees = get_obj("deactivate_remote_frees"); |
f715e6f15 slabinfo: Support... |
1306 |
slab->order_fallback = get_obj("order_fallback"); |
9da4714a2 slub: slabinfo up... |
1307 1308 |
slab->cmpxchg_double_cpu_fail = get_obj("cmpxchg_double_cpu_fail"); slab->cmpxchg_double_fail = get_obj("cmpxchg_double_fail"); |
aca726a07 slub: update slab... |
1309 1310 |
slab->cpu_partial_alloc = get_obj("cpu_partial_alloc"); slab->cpu_partial_free = get_obj("cpu_partial_free"); |
9da4714a2 slub: slabinfo up... |
1311 1312 |
slab->alloc_node_mismatch = get_obj("alloc_node_mismatch"); slab->deactivate_bypass = get_obj("deactivate_bypass"); |
c09d87517 slub: add slabinf... |
1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 |
chdir(".."); if (slab->name[0] == ':') alias_targets++; slab++; break; default : fatal("Unknown file type %lx ", de->d_type); } } closedir(dir); slabs = slab - slabinfo; |
a87615b8f SLUB: slabinfo up... |
1325 |
actual_slabs = slabs; |
c09d87517 slub: add slabinf... |
1326 1327 1328 1329 1330 1331 1332 1333 |
aliases = alias - aliasinfo; if (slabs > MAX_SLABS) fatal("Too many slabs "); if (aliases > MAX_ALIASES) fatal("Too many aliases "); } |
b7ed698cc Documentation/: f... |
1334 |
static void output_slabs(void) |
c09d87517 slub: add slabinf... |
1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 |
{ struct slabinfo *slab; for (slab = slabinfo; slab < slabinfo + slabs; slab++) { if (slab->alias) continue; if (show_numa) |
a87615b8f SLUB: slabinfo up... |
1345 1346 |
slab_numa(slab, 0); else if (show_track) |
c09d87517 slub: add slabinf... |
1347 |
show_tracking(slab); |
a87615b8f SLUB: slabinfo up... |
1348 |
else if (validate) |
c09d87517 slub: add slabinf... |
1349 |
slab_validate(slab); |
a87615b8f SLUB: slabinfo up... |
1350 |
else if (shrink) |
c09d87517 slub: add slabinf... |
1351 |
slab_shrink(slab); |
a87615b8f SLUB: slabinfo up... |
1352 1353 1354 1355 1356 1357 |
else if (set_debug) slab_debug(slab); else if (show_ops) ops(slab); else if (show_slab) slabcache(slab); |
eefaca9c3 SLUB: slabinfo fixes |
1358 1359 |
else if (show_report) report(slab); |
c09d87517 slub: add slabinf... |
1360 1361 1362 1363 1364 |
} } struct option opts[] = { { "aliases", 0, NULL, 'a' }, |
8ff12cfc0 SLUB: Support for... |
1365 |
{ "activity", 0, NULL, 'A' }, |
a87615b8f SLUB: slabinfo up... |
1366 |
{ "debug", 2, NULL, 'd' }, |
8ff12cfc0 SLUB: Support for... |
1367 |
{ "display-activity", 0, NULL, 'D' }, |
a87615b8f SLUB: slabinfo up... |
1368 |
{ "empty", 0, NULL, 'e' }, |
c09d87517 slub: add slabinf... |
1369 |
{ "first-alias", 0, NULL, 'f' }, |
a87615b8f SLUB: slabinfo up... |
1370 1371 1372 1373 1374 |
{ "help", 0, NULL, 'h' }, { "inverted", 0, NULL, 'i'}, { "numa", 0, NULL, 'n' }, { "ops", 0, NULL, 'o' }, { "report", 0, NULL, 'r' }, |
c09d87517 slub: add slabinf... |
1375 |
{ "shrink", 0, NULL, 's' }, |
a87615b8f SLUB: slabinfo up... |
1376 |
{ "slabs", 0, NULL, 'l' }, |
c09d87517 slub: add slabinf... |
1377 |
{ "track", 0, NULL, 't'}, |
a87615b8f SLUB: slabinfo up... |
1378 1379 |
{ "validate", 0, NULL, 'v' }, { "zero", 0, NULL, 'z' }, |
c09d87517 slub: add slabinf... |
1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 |
{ "1ref", 0, NULL, '1'}, { NULL, 0, NULL, 0 } }; int main(int argc, char *argv[]) { int c; int err; char *pattern_source; page_size = getpagesize(); |
c09d87517 slub: add slabinf... |
1391 |
|
8ff12cfc0 SLUB: Support for... |
1392 |
while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS", |
a87615b8f SLUB: slabinfo up... |
1393 |
opts, NULL)) != -1) |
f32143a2f Documentation/vm/... |
1394 |
switch (c) { |
c09d87517 slub: add slabinf... |
1395 1396 1397 1398 1399 1400 |
case '1': show_single_ref = 1; break; case 'a': show_alias = 1; break; |
8ff12cfc0 SLUB: Support for... |
1401 1402 1403 |
case 'A': sort_active = 1; break; |
a87615b8f SLUB: slabinfo up... |
1404 1405 1406 1407 1408 1409 |
case 'd': set_debug = 1; if (!debug_opt_scan(optarg)) fatal("Invalid debug option '%s' ", optarg); break; |
8ff12cfc0 SLUB: Support for... |
1410 1411 1412 |
case 'D': show_activity = 1; break; |
a87615b8f SLUB: slabinfo up... |
1413 1414 1415 |
case 'e': show_empty = 1; break; |
c09d87517 slub: add slabinf... |
1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 |
case 'f': show_first_alias = 1; break; case 'h': usage(); return 0; case 'i': show_inverted = 1; break; case 'n': show_numa = 1; break; |
a87615b8f SLUB: slabinfo up... |
1428 1429 1430 1431 1432 1433 |
case 'o': show_ops = 1; break; case 'r': show_report = 1; break; |
c09d87517 slub: add slabinf... |
1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 |
case 's': shrink = 1; break; case 'l': show_slab = 1; break; case 't': show_track = 1; break; case 'v': validate = 1; break; case 'z': skip_zero = 0; break; case 'T': show_totals = 1; break; case 'S': sort_size = 1; break; default: fatal("%s: Invalid option '%c' ", argv[0], optopt); } |
a87615b8f SLUB: slabinfo up... |
1461 1462 |
if (!show_slab && !show_alias && !show_track && !show_report && !validate && !shrink && !set_debug && !show_ops) |
c09d87517 slub: add slabinf... |
1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 |
show_slab = 1; if (argc > optind) pattern_source = argv[optind]; else pattern_source = ".*"; err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB); if (err) fatal("%s: Invalid pattern '%s' code %d ", argv[0], pattern_source, err); read_slab_dir(); if (show_alias) alias(); else if (show_totals) totals(); else { link_slabs(); rename_slabs(); sort_slabs(); output_slabs(); } return 0; } |