Messages in this thread | | | Date | Fri, 20 Jan 2006 12:25:04 +0000 (GMT) | From | Mel Gorman <> | Subject | Re: [Lhms-devel] Re: [PATCH 0/5] Reducing fragmentation using zones |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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