Messages in this thread | | | Subject | Re: 2.6.0-test3-mm3 | Date | Fri, 22 Aug 2003 15:24:12 -0700 | From | Cliff White <> |
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> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test3/2.6.0-test3-mm3/ > > > . More CPU scheduler changes > > . The regression with reaim which was due to the CPU scheduler changes > seems to have largely gone away, but it was never a large effect in my > testing. Needs retesting please. >
Have some tests completed. Results are ..interesting. All results: http://developer.osdl.org/cliffw/reaim/index.html
On a gross level, the delta has indeed shrunk: STP 4-CPU STP id PLM# KernelName Workfile MaxJPM MaxUser Host Change 277851 2063 2.6.0-test3-mm3 new_dbase 5327.15 88 stp4-000 0.00 277455 2049 linux-2.6.0-test3 new_dbase 5324.95 92 stp4-000 -0.04
However, if we look at the detail within the runs, the two kernels do run differently. It's not really good/bad, just different. Basically, -mm3 runs a little slower, but steadier. -test3 has bigger peaks and valleys, the average between the two over the run comes out about the same. Example:
Num children JPM/-mm3 JPM/-test3 44 5079.77 5183.81 48 5130.43 4853.96 52 5102.86 5161.39
Numbers taken from: -test3 -> http://khack.osdl.org/stp/277455/results/allruns.html -mm3 -> http://khack.osdl.org/stp/277851/results/allruns.html
Sorry to be so vague..more tests are underway.
Code location: bk://developer.osdl.org/osdl-aim-7 tarball: http://sourceforge.net/projects/re-aim-7
Run parameters:
./reaim -s$CPU_COUNT -x -t -i$CPU_COUNT -f workfile.new_dbase -r3 -b -l./stp.config ./reaim -s$CPU_COUNT -q -t -i$CPU_COUNT -f workfile.new_dbase -r3 -b -l./stp.config (3 runs each, average of all 6 reported)
cliffw
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