Messages in this thread Patch in this message | | | Date | Wed, 4 Apr 2007 11:10:50 -0700 | From | William Lee Irwin III <> | Subject | Re: per-thread rusage |
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On Wed, 4 Apr 2007 10:29:31 -0700 William Lee Irwin III <wli@holomorphy.com> wrote: >> It is not now possible for a thread to retrieve its own rusage in >> isolation. Its rusage is nowhere exposed without being intermixed with >> that of its sibling threads. This patch adds support for an >> RUSAGE_THREAD who argument that returns rusage for only the desired >> thread.
On Wed, Apr 04, 2007 at 07:48:29PM +0200, Eric Dumazet wrote: > Please check mm, because we now return ru_inblock and ru_oublock as well. > r->ru_inblock = task_io_get_inblock(p); > r->ru_oublock = task_io_get_oublock(p);
Respun vs. 2.6.21-rc5-mm4, still untested. Also...
Signed-off-by: William Irwin <bill.irwin@oracle.com>
-- wli
Index: mm-2.6.21-rc5-4/include/linux/resource.h =================================================================== --- mm-2.6.21-rc5-4.orig/include/linux/resource.h 2007-04-03 23:31:19.000000000 -0700 +++ mm-2.6.21-rc5-4/include/linux/resource.h 2007-04-04 13:08:47.000000000 -0700 @@ -18,7 +18,8 @@ */ #define RUSAGE_SELF 0 #define RUSAGE_CHILDREN (-1) -#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */ +#define RUSAGE_THREAD (-2) +#define RUSAGE_BOTH (-3) /* sys_wait4() uses this */ struct rusage { struct timeval ru_utime; /* user time used */ Index: mm-2.6.21-rc5-4/kernel/sys.c =================================================================== --- mm-2.6.21-rc5-4.orig/kernel/sys.c 2007-04-03 23:33:27.000000000 -0700 +++ mm-2.6.21-rc5-4/kernel/sys.c 2007-04-04 13:11:17.000000000 -0700 @@ -2074,6 +2074,16 @@ } switch (who) { + case RUSAGE_THREAD: + utime = p->utime; + stime = p->stime; + r->ru_nvcsw = p->nvcsw; + r->ru_nivcsw = p->nivcsw; + r->ru_minflt = p->min_flt; + r->ru_majflt = p->maj_flt; + r->ru_inblock = task_io_get_inblock(p); + r->ru_oublock = task_io_get_oublock(p); + break; case RUSAGE_BOTH: case RUSAGE_CHILDREN: utime = p->signal->cutime; @@ -2131,7 +2141,8 @@ asmlinkage long sys_getrusage(int who, struct rusage __user *ru) { - if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) + if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN && + who != RUSAGE_THREAD) return -EINVAL; return getrusage(current, who, ru); } - 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/
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