| commit | 8a02631a470d6f2ccec7bcf79c1058b0d4240bce | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | Fri Sep 04 17:26:26 2009 +0200 |
| committer | Ingo Molnar <mingo@elte.hu> | Fri Sep 04 17:38:15 2009 +0200 |
| tree | e9dc528dff1db2d7165f315f9c05877265561444 | |
| parent | 63d40deb2e7c64ed55943d49f078e09fc4b64b54 [diff] |
perf stat: More advanced variance computation Use the more advanced single pass variance algorithm outlined on the wikipedia page. This is numerically more stable for larger sample sets. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>