TSDB: Pre-size buffer to read samples from WAL #12997
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When reading the WAL this method is called with buffers from a pool, on multiple goroutines. Pre-allocating sufficient size avoids slow growth and many reallocations in `append`. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
beorn7
approved these changes
Oct 24, 2023
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We fastpathed this during the bug scrub. @jesusvazquez if you have any concerns, please intervene.
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When reading the WAL this method is called with buffers from a pool, on multiple goroutines. Pre-allocating sufficient size avoids slow growth and many reallocations in
append.