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7fe0ac7c11
There already is a test to verify the mempool sharding works, in the sense that it uses at least half of the variables available to count the number of allocated objects and their total size. This new test verifies that, with sharding, object counting is at least twice faster than without sharding. It also collects cacheline contention data with the perf c2c tool. The manual analysis of this data shows the optimization gain is indeed related to cacheline contention. Fixes: https://tracker.ceph.com/issues/49896 Signed-off-by: Loïc Dachary <loic@dachary.org> |
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| experimental | ||
| fs | ||
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| krbd | ||
| marginal | ||
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| powercycle | ||
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