Comment 13 for bug 1008400

Hi Bryan,

Thanks for taking this seriously. I only have the testcase I described above. This server is now in production, so I cannot do any more tests on it.
However it should be easy to test the performance of deadline vs CFQ on a server, and lots of people did this and wrote about it on their blogs/websites. But this is only the performance of course, for more serious problems you could resemble my scenario;start a KVM with ide emulation on a host with a normal (slow) disk, do regular writes on the KVM and do a write on the host that lasts at least several minutes on the same physical disk. I used a Dell R300 server with two WD Caviar Green disks, you should be able to get the same result on most other hardware configurations, as long as you don't use too fast disks, hardware raid controllers etc.