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authorDave Chinner <dchinner@redhat.com>2018-03-07 04:30:34 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2018-03-12 06:27:56 +0300
commitae23395d8858a0c91de978a60b317ec8468b2aba (patch)
treee5fbc63f66da6f754dde9a57d8952b511190bffa /certs
parenta78ee256c325ecfaec13cafc41b315bd4e1dd518 (diff)
downloadlinux-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 'certs')
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