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docs/CHANGELOG.md: mention optimized query performance on systems with many CPU cores

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Aliaksandr Valialkin 2021-03-29 13:55:01 +03:00
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@ -2,6 +2,7 @@
# tip # tip
* FEATURE: optimize query performance by up to 10x on systems with many CPU cores. See [this tweet](https://twitter.com/MetricsVictoria/status/1375064484860067840).
* FEATURE: add the following metrics at `/metrics` page for every VictoraMetrics app: * FEATURE: add the following metrics at `/metrics` page for every VictoraMetrics app:
* `process_resident_memory_anon_bytes` - RSS share for memory allocated by the process itself. This share cannot be freed by the OS, so it must be taken into account by OOM killer. * `process_resident_memory_anon_bytes` - RSS share for memory allocated by the process itself. This share cannot be freed by the OS, so it must be taken into account by OOM killer.
* `process_resident_memory_file_bytes` - RSS share for page cache memory (aka memory-mapped files). This share can be freed by the OS at any time, so it must be ignored by OOM killer. * `process_resident_memory_file_bytes` - RSS share for page cache memory (aka memory-mapped files). This share can be freed by the OS at any time, so it must be ignored by OOM killer.