Hi Ryo Tsuruta, 2009/4/24 Ryo Tsuruta <ryov@xxxxxxxxxxxxx>: > Hi Dong-Jae, > >> range-bw is based on newest version of dm-ioband, bio-cgroup V7(4 >> patch files), dm-ioband-V1.10.3(1 patch file) and these can be >> referred in >> http://people.valinux.co.jp/~ryov/dm-ioband/ >> http://people.valinux.co.jp/~ryov/bio-cgroup/ >> and the below range-bw patch file(dm-ioband-rangebw-1.10.3.patch) >> including Ryo’s patch set is also referred in: >> http://www.corsetproject.net/browser/corset_source_code/resource_controllers/disk_controller/Range-BW-for-dmioband-V1.10.3 >> You have to apply this(dm-ioband-rangebw-1.10.3.patch) patch file >> after applying dm-ioband and bio-cgroup patches. >> >> The released range-bw may have some problems and improper code >> although I try to test heavily. It is first release ^^ >> And it is required to reduce the overhead of I/O scheduling and to >> optimize the source code. >> Any comments or advices is welcome >> >> Ryo Tsuruta, Can you check this patch file ? >> for convenience, patch file is attached in this mail. > > I took a quick look at your patch. It seems to be no problem for > existing dm-ioband code, but I would suggest you that you had better > use checkpatch.pl to check for your coding style. > The patch could be applied and compiled successfully. I did a simple > test, running fio on each cgroup in 30 seconds simultaneously, and got > the following results. > > w/o range-bw w/ range-bw (min&max-bw settings) > cgroup1 331KB/s 102KB/s (100KB) > cgroup2 331KB/s 196KB/s (200KB) > > Do you have any benchmark resutls? I'd be very interested to see it. > > Thanks, > Ryo Tsuruta > Thank you for your comments about range-bw and your recommendation of checkpatch.pl seems to be useful for me. I wonder your test configuration and environment. Your result is some strange for me, because I didn't use the testing tool, fio. I have used xdd, bonnie++ and tiobench during the test. So, I will try to evaluate range-bw using fio, to do that, I need to know your configuration and basic environment in briefly if it don't bother you, can you give me the information? and I attached the result of basic evaluation of range-bw using xdd 6.5.(Test Result for range-bw_english.pdf) it was performed to evaluate the basic functionalities in one process per group. actually, more evaluation is need in specfic envinronment like as massive I/O by huge processes in each group. and it is going on now -- Best Regards, Dong-Jae Kang
Attachment:
Test Result for range-bw_english.pdf
Description: Adobe PDF document
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