diff options
| author | Dave Chinner <[email protected]> | 2010-09-24 19:59:15 +1000 |
|---|---|---|
| committer | Alex Elder <[email protected]> | 2010-10-18 15:07:57 -0500 |
| commit | 50f59e8eed85ec4c79bc2454ed50c7886f6c5ebf (patch) | |
| tree | ffb2fa359ee0751ce2f0f6dd29afc39eeda1ca86 /tools/perf/scripts/python/syscall-counts.py | |
| parent | 74f75a0cb7033918eb0fa4a50df25091ac75c16e (diff) | |
xfs: pack xfs_buf structure more tightly
pahole reports the struct xfs_buf has quite a few holes in it, so
packing the structure better will reduce the size of it by 16 bytes.
Also, move all the fields used in cache lookups into the first
cacheline.
Before on x86_64:
/* size: 320, cachelines: 5 */
/* sum members: 298, holes: 6, sum holes: 22 */
After on x86_64:
/* size: 304, cachelines: 5 */
/* padding: 6 */
/* last cacheline: 48 bytes */
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Alex Elder <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions