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While profiling some application that reuses zstd Readers through sync.Pool and Reader.Reset() I see in pprof that the majority of memory is occupied by this: 
From a glance I don't think that Reader.Reset(nil) releases resources held by Reader.frame.history. Is that right? Should it? |
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Answered by
klauspost
Jul 18, 2025
Replies: 1 comment
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It doesn't release them, since it expects to use them again, thus avoiding the alloc on every use. |
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Answer selected by
ethercrow
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It doesn't release them, since it expects to use them again, thus avoiding the alloc on every use.