Eric Lee / smarc-fsl-linux-kernel

17 Jul, 2007

1 commit

  • b663a79c1   taskstats: add context-switch counters ... Browse Code »

    Make available to the user the following task and process performance
    statistics:

    * Involuntary Context Switches (task_struct->nivcsw)
    * Voluntary Context Switches (task_struct->nvcsw)

    Statistics information is available from:
    1. taskstats interface (Documentation/accounting/)
    2. /proc/PID/status (task only).

    This data is useful for detecting hyperactivity patterns between processes.

    [akpm@linux-foundation.org: cleanup]
    Signed-off-by: Maxim Uvarov
    Cc: Shailabh Nagar
    Cc: Balbir Singh
    Cc: Jay Lan
    Cc: Jonathan Lim
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maxim Uvarov
     

09 May, 2007

2 commits

11 Dec, 2006

2 commits

  • cf709844d   [PATCH] io-accounting: add to getdelays ... Browse Code »

    Wire up the IO accounting into getdelays.c.

    Usage:

    To display I/O stats for each exitting task:

    vmm:/home/akpm> ./getdelays -m0,1,2,3 -i -l
    cpumask 0 maskset 1
    printing IO accounting
    listen forever
    rm: read=8192, write=0, cancelled_write=0
    cvs: read=733184, write=4255744, cancelled_write=4096
    make: read=217088, write=0, cancelled_write=0
    cc1: read=4263936, write=12288, cancelled_write=0
    as: read=811008, write=8192, cancelled_write=0
    gcc: read=323584, write=0, cancelled_write=12288
    cc1: read=0, write=8192, cancelled_write=0
    as: read=4096, write=4096, cancelled_write=0
    gcc: read=16384, write=0, cancelled_write=4096
    as: read=4096, write=4096, cancelled_write=0
    gcc: read=16384, write=0, cancelled_write=8192
    ld: read=1011712, write=16384, cancelled_write=0
    collect2: read=626688, write=0, cancelled_write=0
    gcc: read=204800, write=0, cancelled_write=0
    cc1: read=0, write=8192, cancelled_write=0
    as: read=4096, write=4096, cancelled_write=0
    gcc: read=16384, write=0, cancelled_write=8192
    ld: read=8192, write=16384, cancelled_write=0
    collect2: read=49152, write=0, cancelled_write=0
    gcc: read=0, write=0, cancelled_write=0
    cc1: read=0, write=4096, cancelled_write=0
    ld: read=4096, write=12288, cancelled_write=0
    collect2: read=49152, write=0, cancelled_write=0
    gcc: read=0, write=0, cancelled_write=0

    To display I/O stats for a particular presently-running task:

    vmm:/home/akpm> ./getdelays -i -p $(pidof crond)
    printing IO accounting
    crond: read=61440, write=0, cancelled_write=0

    Cc: Jay Lan
    Cc: Shailabh Nagar
    Cc: Balbir Singh
    Cc: Chris Sturtivant
    Cc: Tony Ernst
    Cc: Guillaume Thouvenin
    Cc: David Wright
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     
  • d2f7bf134   [PATCH] getdelays: various fixes ... Browse Code »

    - Various cleanups

    - Report errors to stderr, not stdout

    - A printf was missing a \n and was hiding from me.

    Cc: Jay Lan
    Cc: Shailabh Nagar
    Cc: Balbir Singh
    Cc: Chris Sturtivant
    Cc: Tony Ernst
    Cc: Guillaume Thouvenin
    Cc: David Wright
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

04 Nov, 2006

1 commit

01 Oct, 2006

1 commit

  • 7d1bdca9b   [PATCH] Fix getdelays.c - cpumask length and error reporting ... Browse Code »

    Fix the length passed while (un)registering cpumask. We were passing sizeof
    the array, make it strlen().

    Error value printed in fatal errors should be derived from the message. The
    message contains an nlmsgerr embedded with an error value. We must report
    that value to the user.

    Signed-off-by: Balbir Singh
    Cc: Jamal Hadi
    Cc: Shailabh Nagar
    Cc: Thomas Graf
    Cc: "David S. Miller"
    Cc: Jay Lan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Balbir Singh
     

15 Jul, 2006

2 commits