Blame view
include/linux/latencytop.h
1.02 KB
9745512ce
|
1 2 3 4 5 6 7 8 9 10 |
/* * latencytop.h: Infrastructure for displaying latency * * (C) Copyright 2008 Intel Corporation * Author: Arjan van de Ven <arjan@linux.intel.com> * */ #ifndef _INCLUDE_GUARD_LATENCYTOP_H_ #define _INCLUDE_GUARD_LATENCYTOP_H_ |
ad0b0fd55
|
11 |
#include <linux/compiler.h> |
9745512ce
|
12 13 14 15 16 17 18 19 20 21 22 23 24 25 |
#ifdef CONFIG_LATENCYTOP #define LT_SAVECOUNT 32 #define LT_BACKTRACEDEPTH 12 struct latency_record { unsigned long backtrace[LT_BACKTRACEDEPTH]; unsigned int count; unsigned long time; unsigned long max; }; struct task_struct; |
ad0b0fd55
|
26 27 28 29 30 31 32 33 |
extern int latencytop_enabled; void __account_scheduler_latency(struct task_struct *task, int usecs, int inter); static inline void account_scheduler_latency(struct task_struct *task, int usecs, int inter) { if (unlikely(latencytop_enabled)) __account_scheduler_latency(task, usecs, inter); } |
9745512ce
|
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 |
void clear_all_latency_tracing(struct task_struct *p); #else static inline void account_scheduler_latency(struct task_struct *task, int usecs, int inter) { } static inline void clear_all_latency_tracing(struct task_struct *p) { } #endif #endif |