diff options
| author |   Liang Zhen <liang.zhen@intel.com> | 2015-02-01 21:52:00 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-07 17:27:16 +0800 |
| commit | fa55c6a4b41cd4fd240debe719b205056b04a0bf (patch) | |
| tree | f4c7db0b26bebe225182d174f143c8e576bba75c /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | staging: lustre: osc: Make osc_init() static (diff) | |
| download | linux-dev-fa55c6a4b41cd4fd240debe719b205056b04a0bf.tar.xz linux-dev-fa55c6a4b41cd4fd240debe719b205056b04a0bf.zip | |
staging/lustre/ptlrpc: avoid list scan in ptlrpcd_check
ptlrpcd_check() always scan all requests on ptlrpc_request_set
and try to finish completed requests, this is low efficiency.
Even worse, l_wait_event() always checks condition for twice
before sleeping and one more time after waking up, which means
it will call ptlrpcd_check() for three times in each loop.
This patch will move completed requests at the head of list
in ptlrpc_check_set(), with this change ptlrpcd_check doesn't
need to scan all requests anymore.
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-on: http://review.whamcloud.com/11513
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5548
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions