Re: page fault scalability (ext3, ext4, xfs)
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: 2013-08-15 15:14:21
Also in:
linux-fsdevel, lkml
On 08/14/2013 06:11 PM, Theodore Ts'o wrote:
The point is that if the goal is to measure page fault scalability, we shouldn't have this other stuff happening as the same time as the page fault workload.
will-it-scale does several different tests probing at different parts of the fault path: https://www.sr71.net/~dave/intel/willitscale/systems/bigbox/3.11.0-rc2-dirty/foo.html It does that both for process and threaded workloads which lets it get pretty good coverage of different areas of code. I only posted data from half of one of these tests here because it was the only one that I found that both had noticeable overhead in the filesystem code. It also showed substantial, consistent, and measurable deltas between the different filesystems. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs