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High statistics poll overhead / Separate hit counter for statistics / Drop approximate stats and hash quality metric #150

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cruftex opened this issue Aug 19, 2020 · 1 comment
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@cruftex
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cruftex commented Aug 19, 2020

cache2k has approximate statistics for the hit counter. It uses the hit counter inside the cache entry, that is also used by the eviction algorithm. The statistics come for free, however, we need to iterate through all cache entries and sum up the hits when we request the statistics.

In case a cache is big and statistics are polled frequently, that might cause quite a CPU load.
Maybe do some deeper investigations on the overhead.

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cruftex commented Oct 14, 2021

Releases as preview a while a go. So far testing looks good.
https://github.com/cache2k/cache2k/releases/tag/v2.3.1.Alpha

@cruftex cruftex closed this as completed Oct 14, 2021
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