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| author | David Michael Barr <b@rr-dav.id.au> | 2012-09-12 14:26:31 +1000 |
|---|---|---|
| committer | David Michael Barr <b@rr-dav.id.au> | 2012-09-13 09:31:24 +1000 |
| commit | ab8a0402aeac9767e5bb1b022a6c9ad27cf78f32 (patch) | |
| tree | 9bdcdeaf9c3ddf5769435cd6f4097f7ac59b5711 /tests-clar/diff/tree.c | |
| parent | 21d847d38ffd5055ffbcaabebf115edbee8e8b94 (diff) | |
| download | libgit2-ab8a0402aeac9767e5bb1b022a6c9ad27cf78f32.tar.gz | |
odb_pack: try lookup before refreshing packs
This reduces the rate of syscalls for the common case of sequences of
object reads from the same pack.
Best of 5 timings for libgit2_clar before this patch:
real 0m5.375s
user 0m0.392s
sys 0m3.564s
After applying this patch:
real 0m5.285s
user 0m0.356s
sys 0m3.544s
0.6% improvement in system time.
9.2% improvement in user time.
1.7% improvement in elapsed time.
Confirmed a 0.6% reduction in number of system calls with strace.
Expect greater improvement for graph-traversal with large packs.
Diffstat (limited to 'tests-clar/diff/tree.c')
0 files changed, 0 insertions, 0 deletions