disk performance is very hard to benchmark in a fair manner since it very much depends on where physical blocks are allocated by a file system. FYI, disk speed can vary 2x times at beginning and end of partition.
Thanks, Kirill On 8/31/08 2:31 PM, "Zhaohui Wang" <[EMAIL PROTECTED]> wrote: > > > > Hi all > > Have you ever tried benchmark the IO overhead in openvz? I did 2 set of test, > one is 20 times wget a 7.4 file from a remote websever in a network link > without interference of other links; the other is cp the 7.4g file for 10 > times. The wget test showed 4% IO overhead in openvz 2.6.24 kernel comparing > to vanilla,while the cp test showed a -7% overhead. > > How come cp operation is more faster in openvz kernel than vanilla kernel?Any > expert can offer a explaination? > > Many thanks. > > > Best Regards > Zhaohui Wang > > >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of Adeel Nazir >> Sent: Saturday, August 30, 2008 5:34 PM >> To: [email protected]; [EMAIL PROTECTED] >> Subject: [Users] OpenVZ & Linux-rt >> >> Has anyone tried mixing Ingo Milnar's real-time patchset with the >> OpenVZ patches? Or if anyone has any ideas if there'd be conflicting >> issues between the 2 patchset's? I tried trivially applying the patches >> from both projects and there were a lot of places where the patching >> failed, requiring a manual review, leading me to ask for some details >> on what the openvz patchset really changes from the stock kernel? >> >> Thanks >> >> >> Adeel >> >> >> >> _______________________________________________ >> Users mailing list >> [email protected] >> https://openvz.org/mailman/listinfo/users > > _______________________________________________ > Users mailing list > [email protected] > https://openvz.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] https://openvz.org/mailman/listinfo/users
