Messages in this thread | | | Date | Fri, 19 Sep 2008 17:49:24 +0900 | From | Takuya Yoshikawa <> | Subject | Re: dm-ioband + bio-cgroup benchmarks |
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Hi Tsuruta-san,
Ryo Tsuruta wrote: > Hi All, > > I have got excellent results of dm-ioband, that controls the disk I/O > bandwidth even when it accepts delayed write requests. > > In this time, I ran some benchmarks with a high-end storage. The > reason was to avoid a performance bottleneck due to mechanical factors > such as seek time. > > You can see the details of the benchmarks at: > http://people.valinux.co.jp/~ryov/dm-ioband/hps/ >
I took a look at your beautiful results! When you have time, would you explain me how you succeeded to check the time, bandwidth, especially when you did write() tests? Actually, I tried similar tests and failed to check the bandwidth correctly. Did you insert something in the kernel source?
Thanks, Takuya Yoshikawa
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