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| author | jtl <jtl@FreeBSD.org> | 2015-11-14 01:45:55 +0000 |
|---|---|---|
| committer | jtl <jtl@FreeBSD.org> | 2015-11-14 01:45:55 +0000 |
| commit | 73114f99e8a93e8b08a4f6b70bf873e4bf690cb7 (patch) | |
| tree | 932a83cc25dfb5f711825a12282d96b319e5a5ef /lib/libc | |
| parent | 8805597c1bb76cccf4d083d7338fad0c0b643be9 (diff) | |
| download | FreeBSD-src-73114f99e8a93e8b08a4f6b70bf873e4bf690cb7.zip FreeBSD-src-73114f99e8a93e8b08a4f6b70bf873e4bf690cb7.tar.gz | |
Optimizations to the way hwpmc gathers user callchains
Changes to the code to gather user stacks:
* Delay setting pmc_cpumask until we actually have the stack.
* When recording user stack traces, only walk the portion of the ring
that should have samples for us.
Sponsored by: Juniper Networks
Approved by: gnn (mentor)
MFC after: 1 month
Diffstat (limited to 'lib/libc')
0 files changed, 0 insertions, 0 deletions
