Messages in this thread | | | Date | Fri, 31 Jan 2003 09:09:04 -0500 (EST) | From | "Mike A. Harris" <> | Subject | Re: [BENCHMARK] ext3, reiser, jfs, xfs effect on contest |
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On Sat, 1 Feb 2003, Con Kolivas wrote:
>Using the osdl hardware (http://www.osdl.org) with contest >(http://contest.kolivas.net) I've conducted a set of benchmarks with >different filesystems. Note that contest does not claim to be a throughput >benchmark. > >All of these use kernel 2.5.59 > >First a set of contest benchmarks with the io load on a different hard disk >containing each of the four filesystems: > >io_other: >Kernel [runs] Time CPU% Loads LCPU% Ratio >2559ext3 3 89 84.3 2 5.5 1.13 >2559reiser 3 87 86.2 2 5.7 1.10 >2559jfs 3 87 86.2 3 5.7 1.10 >2559xfs 3 87 86.2 2 4.5 1.10 > >I found it interesting that there is virtually no difference in kernel >compilation time with all fs. However jfs consistently wrote more during the >io load than the other fs. > > >This is a set of benchmarks with the kernel compilation and load all performed >on each of the fs:
Compilation is inherently CPU bound, not disk I/O bound, so compiling the kernel (or anything for that matter) isn't going to show any difference really because the CPU Mhz and L1/L2 cache are the bottleneck.
-- Mike A. Harris ftp://people.redhat.com/mharris OS Systems Engineer - XFree86 maintainer - Red Hat
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