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Changing the logical page size

Changing the logical page size

Posted Mar 30, 2014 22:09 UTC (Sun) by dgc (subscriber, #6611)
In reply to: Changing the logical page size by arnd
Parent article: Various page cache issues

We did actually touch on using larger base page sizes, but that really isn't a complete solution to any of the problems. e.g. only go to a 16k page size and we still need to change code somewhere to support 64k filesystem block sizes. It also has other impacts across the rest of the kernel, such as kernel thread stacks become much larger, and we can waste much more memory in the page cache when caching lots of small files. IOWs, it is one possible solution, but it's not a magic bullet.


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