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| author | rwatson <rwatson@FreeBSD.org> | 2004-08-11 01:34:18 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2004-08-11 01:34:18 +0000 |
| commit | 36e89f928c8909ce943566776b5922f293e7dcd5 (patch) | |
| tree | 1be8c0f461f0ce72b13defb3e8d115ae35d993fa /lib/libexpat | |
| parent | 371cf09cf75eb31267e0d4f07e35e6fba755d416 (diff) | |
| download | FreeBSD-src-36e89f928c8909ce943566776b5922f293e7dcd5.zip FreeBSD-src-36e89f928c8909ce943566776b5922f293e7dcd5.tar.gz | |
Add ADAPTIVE_GIANT to GENERIC on i386, with the intent of making it
a standard configuration similar to [NO_]ADAPTIVE_MUTEXES. This
feature causes Giant to be included in the set of mutexes adaptively
spun on. It appears to have a positive effect on performance on SMP
across several workloads, including measurements of a 16% improvement
on buildworld, and 30%+ improvement for MySQL using the supersmack
benchmark with Giant over the network stack; a 6% improvement without
Giant on the network stack (as a result of less giant contention).
Diffstat (limited to 'lib/libexpat')
0 files changed, 0 insertions, 0 deletions
