lkml.org 
[lkml]   [2003]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch] procfs-utime-2.5.62-B0

this split-out patch adds per-thread-group CPU statistics to
/proc/PID/stat. This functionality is needed for procps to be able to take
full advantage of thread-directories. Patch is tested, it works.

Ingo

--- linux/include/linux/sched.h.orig
+++ linux/include/linux/sched.h
@@ -379,6 +379,7 @@ struct task_struct {
struct timer_list real_timer;
struct list_head posix_timers; /* POSIX.1b Interval Timers */
unsigned long utime, stime, cutime, cstime;
+ unsigned long group_utime, group_stime, group_cutime, group_cstime;
u64 start_time;
/* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */
unsigned long min_flt, maj_flt, nswap, cmin_flt, cmaj_flt, cnswap;
--- linux/fs/proc/array.c.orig
+++ linux/fs/proc/array.c
@@ -336,7 +336,7 @@ int proc_pid_stat(struct task_struct *ta
read_unlock(&tasklist_lock);
res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %llu %lu %ld %lu %lu %lu %lu %lu \
-%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu %lu %lu %lu %lu\n",
task->pid,
task->comm,
state,
@@ -381,8 +381,12 @@ int proc_pid_stat(struct task_struct *ta
task->exit_signal,
task_cpu(task),
task->rt_priority,
- task->policy);
- if(mm)
+ task->policy,
+ jiffies_to_clock_t(task->group_utime),
+ jiffies_to_clock_t(task->group_stime),
+ jiffies_to_clock_t(task->group_cutime),
+ jiffies_to_clock_t(task->group_cstime));
+ if (mm)
mmput(mm);
return res;
}
--- linux/kernel/timer.c.orig
+++ linux/kernel/timer.c
@@ -659,7 +659,10 @@ static inline void do_process_times(stru
unsigned long psecs;

psecs = (p->utime += user);
+ p->group_leader->group_utime += user;
psecs += (p->stime += system);
+ p->group_leader->group_stime += system;
+
if (psecs / HZ > p->rlim[RLIMIT_CPU].rlim_cur) {
/* Send SIGXCPU every second.. */
if (!(psecs % HZ))
--- linux/kernel/exit.c.orig
+++ linux/kernel/exit.c
@@ -87,6 +87,8 @@ void release_task(struct task_struct * p

p->parent->cutime += p->utime + p->cutime;
p->parent->cstime += p->stime + p->cstime;
+ p->parent->group_leader->group_cutime += p->utime + p->cutime;
+ p->parent->group_leader->group_cstime += p->stime + p->cstime;
p->parent->cmin_flt += p->min_flt + p->cmin_flt;
p->parent->cmaj_flt += p->maj_flt + p->cmaj_flt;
p->parent->cnswap += p->nswap + p->cnswap;
--- linux/kernel/fork.c.orig
+++ linux/kernel/fork.c
@@ -846,6 +846,9 @@ static struct task_struct *copy_process(
p->tty_old_pgrp = 0;
p->utime = p->stime = 0;
p->cutime = p->cstime = 0;
+ p->group_utime = p->group_stime = 0;
+ p->group_cutime = p->group_cstime = 0;
+
p->array = NULL;
p->lock_depth = -1; /* -1 = no lock */
p->start_time = get_jiffies_64();


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:33    [W:0.048 / U:9.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site