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Thread: Uncached buffered IO

Uncached buffered IO

From
wenhui qiu
Date:
Hi Hackers. 
    https://lwn.net/Articles/998783/ , is Uncached buffered IO useful for double cache?PostgreSQL's double caching is often a source of complaints. This new Linux kernel feature seems to help mitigate performance jitters caused by file cache reclaim when memory free memory is too small.




Thanks