Re: [Lhms-devel] Re: [PATCH 0/5] Reducing fragmentation using zones
From: Yasunori Goto
Date: Fri Jan 20 2006 - 08:23:13 EST
Thanks! I'll try it next week. :-)
> On Fri, 20 Jan 2006, Yasunori Goto wrote:
>
> > > What sort of tests would you suggest? The tests I have been running to
> > > date are
> > >
> > > "kbuild + aim9" for regression testing
> > >
> > > "updatedb + 7 -j1 kernel compiles + highorder allocation" for seeing how
> > > easy it was to reclaim contiguous blocks
> >
> > BTW, is "highorder allocation test" your original test code?
> > If so, just my curious, I would like to see it too. ;-).
> >
>
> 1. Download http://www.csn.ul.ie/~mel/projects/vmregress/vmregress-0.20.tar.gz
> 2. Extract it to /usr/src/vmregress (i.e. there should be a
> /usr/src/vmregress/bin directory)
> 3. Download linux-2.6.11.tar.gz to /usr/src
> 4. Make a directory /usr/src/bench-stresshighalloc-test
> 5. cd to /usr/src/vmregress and run 3. cd to the directory and run
> ./configure --with-linux=/path/to/running/kernel
> make
>
> 5. Run the test
> bench-stresshighalloc.sh -z -k 6 --oprofile
>
> -z Will test using high memory
> -k 6 will build 1 kernel + 6 additional ones
> By default, it will try and allocate 275 order-10 pages. Specify the
> number of pages with -c and the order with -s
>
> The paths above are default paths. They can all be overridden with command
> line parameters like -t to specify a different kernel to use and -b to
> specify a different path to build all the kernels in.
>
> By default, the results will be logged to a directory whose name is based
> on the kernel being tested. For example, one result directory is
> ~/vmregressbench-2.6.16-rc1-mm1-clean/highalloc-heavy/log.txt
>
> Comparisions between different runs can be analysed by using
> diff-highalloc.sh. e.g.
>
> diff-highalloc.sh vmregressbench-2.6.16-rc1-mm1-clean vmregressbench-2.6.16-rc1-mm1-mbuddy-v22
>
> If you want to test just high-order allocations while some other workload
> is running, use bench-plainhighalloc.sh. See --help for a list of
> available options.
>
> If you want to use bench-aim9.sh, download and build aim9 in /usr/src/aim9
> and edit the s9workfile to specify the tests you are interested in. Use
> diff-aim9.sh to compare different runs of aim9.
>
> --
> Mel Gorman
> Part-time Phd Student Linux Technology Center
> University of Limerick IBM Dublin Software Lab
>
>
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--
Yasunori Goto
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