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perf(col_str): reduce max memory usage #437

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zdyj3170101136 wants to merge 1 commit into ClickHouse:main from zdyj3170101136:perf/col_str

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zdyj3170101136 commented Oct 22, 2024

Summary

here is memory inuse bytes pprof.

the ColStr WriteColumn copy the buf.

reduce max memory usage bytes by use writev.


          perf(col_str): reduce max memory usage

36693f4

Contributor Author

zdyj3170101136 commented Oct 22, 2024

ernado approved these changes

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Contributor Author

zdyj3170101136 commented Oct 23, 2024

@ernado could you merge it ?

zdyj3170101136 requested a review from ernado

October 24, 2024 02:32

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