Re: Quad core CPUs loaded at only 50% when running a CPU and mmap intensive multi-threaded task

[Andi Kleen]

Theodore Tso <tytso@xxxxxxx> writes:

As a general comment it still sounds there is a regression here?
If the workload was faster in an earlier kernel and is now slow
clearly something got slower? And that might be fixable. 
Perhaps something for Rafael's list?

> Maybe if I had used hugepages it would have been a win, 

hugepages do not support arbitary file backing.

-Andi

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