| commit | 2dd0ebcd2ab7b18a50c0810ddb45a84316e4ee2e | |
| author | Ravikiran G Thirumalai <kiran@scalex86.org> | |
| Thu, 23 Mar 2006 11:00:13 +0000 (23 03:00 -0800) | ||
| committer | Linus Torvalds <torvalds@g5.osdl.org> | |
| Thu, 23 Mar 2006 15:38:09 +0000 (23 07:38 -0800) | ||
| tree | 17518ebe86c2b701aa4a74fcac025c1793a87a87 | treesnapshot (tar.gz zip) |
| parent | 0c9e63fd38a2fb2181668a0cdd622a3c23cfd567 | commitdiff |
[PATCH] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
Avoid taking the global tasklist_lock when possible, if a process is single
threaded during getrusage(). Any avoidance of tasklist_lock is good for
NUMA boxes (and possibly for large SMPs). Thanks to Oleg Nesterov for
review and suggestions.
Signed-off-by: Nippun Goel <nippung@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Avoid taking the global tasklist_lock when possible, if a process is single
threaded during getrusage(). Any avoidance of tasklist_lock is good for
NUMA boxes (and possibly for large SMPs). Thanks to Oleg Nesterov for
review and suggestions.
Signed-off-by: Nippun Goel <nippung@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| kernel/sys.c | diffblobblamehistory |