Message195543
Attaching the detailed results of a CacheGrind analysis. Here are the high-points (all of which were expected):
* The last level data cache miss-rate improved 12% (from 4.9% to 4.3%).
* The first level data cache miss-rate improved 14% (from 5.5% to 4.7%).
* The additional code caused the instruction cache miss-rate to get slightly worse (from .32% to .40%).
The last level cache misses are the most important. Per the cachegrind docs, "an L1 miss will typically cost around 10 cycles, [and] an LL miss can cost as much as 200 cycles." |
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2013-08-18 05:47:34 | rhettinger | set | recipients:
+ rhettinger, vstinner, christian.heimes, serhiy.storchaka |
2013-08-18 05:47:34 | rhettinger | set | messageid: <1376804854.28.0.115603751027.issue18771@psf.upfronthosting.co.za> |
2013-08-18 05:47:34 | rhettinger | link | issue18771 messages |
2013-08-18 05:47:34 | rhettinger | create | |
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