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| author | Dave Chinner <dchinner@redhat.com> | 2018-03-07 04:30:34 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-03-12 06:27:56 +0300 |
| commit | ae23395d8858a0c91de978a60b317ec8468b2aba (patch) | |
| tree | e5fbc63f66da6f754dde9a57d8952b511190bffa /mm/kmemleak-test.c | |
| parent | a78ee256c325ecfaec13cafc41b315bd4e1dd518 (diff) | |
| download | linux-ae23395d8858a0c91de978a60b317ec8468b2aba.tar.xz | |
inode: don't memset the inode address space twice
Noticed when looking at why cycling 600k inodes/s through the inode
cache was taking a total of 8% cpu in memset() during inode
initialisation. There is no need to zero the inode.i_data structure
twice.
This increases single threaded bulkstat throughput from ~200,000
inodes/s to ~220,000 inodes/s, so we save a substantial amount of
CPU time per inode init by doing this.
Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'mm/kmemleak-test.c')
0 files changed, 0 insertions, 0 deletions