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| author | Michael Neuling <mikey@neuling.org> | 2007-10-18 03:06:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:28 -0700 |
| commit | c66f08be7e3ad0a28bcd9a0aef766fdf08ea0ec6 (patch) | |
| tree | d147c0a43a66973014d924a6020388a249c509a7 /kernel/fork.c | |
| parent | 898eb71cb17644964c5895fb190e79e3d0c49679 (diff) | |
| download | lwn-c66f08be7e3ad0a28bcd9a0aef766fdf08ea0ec6.tar.gz lwn-c66f08be7e3ad0a28bcd9a0aef766fdf08ea0ec6.zip | |
Add scaled time to taskstats based process accounting
This adds items to the taststats struct to account for user and system
time based on scaling the CPU frequency and instruction issue rates.
Adds account_(user|system)_time_scaled callbacks which architectures
can use to account for time using this mechanism.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 1232aac6a1cd..2ce28f165e31 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1059,6 +1059,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->utime = cputime_zero; p->stime = cputime_zero; p->gtime = cputime_zero; + p->utimescaled = cputime_zero; + p->stimescaled = cputime_zero; #ifdef CONFIG_TASK_XACCT p->rchar = 0; /* I/O counter: bytes read */ |