docs/CHANGELOG.md: cut v1.57.0

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Aliaksandr Valialkin 2021-03-29 19:14:49 +03:00
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# tip
# [v1.57.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.57.0)
* 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:
* `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.