-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear List,
we are currently testing a Node that has SSDs built in. We have some really nice results when not setting any iopslimits or iolimits. For some reason though, if we do set the iopslimit, these do not seem to take any effect or at least not the right effect. Setting up an iopslimit of 500, actually limits the iops at 500. This is expected behaviour. Setting a limit of 2500 iops, however seems to limit the iops at around about 30k iops? Initially we started at setting iopslimit at 15000, which seemed to have absolutely no effect, as the measured iops where at 137000 iops. The command used for all tests within a CT was: # fio --name=global --rw=read --size=16G --name=job1 --name=job2 Used Kernel Version: 2.6.32-042stab103.6 Used vzctl Version: vzctl-4.8-1.x86_64 Used ploop Version: ploop-1.12.2-1.x86_64 Can anyone explain this behaviour or give further advice on how to proceed in setting an iopslimit of 15000 and actually having it limited to 15000 iops? Looking forward to your reply. Regards, Kristian Marcroft -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJU1MiUAAoJECFUP413Yj6jBTAIAJSLqFCTBnZS+iB3s7hdhWqC 4flxeDY8DNFcasTjZiNWoDygWWkzwJK4oa5m/3MyClw9DTp0wWdDVeGsIw/wP225 TWuQcKcOX8YAg/S50bKlId77mQFTe7Ub6nPVZVhiyWVKY4A9ZimY2zGifUROzTkr KzPbkOoEsybksfw3G9+Qo7SrmSRIxFUppNZJsqxCFvlHaVSESsl025Uom0HKuLnx K54KbDq3vZnaMlU9sha+LAfLiZczob/TQ5xunYQirpej3+05qLf9l85gbP2/vn/C CGIGtrMH4skBBIK6BBLXgnvijF67d4dhxASzRGAhOsyr3d1vAkmkxB/SLC4mv0Y= =sq9r -----END PGP SIGNATURE----- _______________________________________________ Users mailing list Users@openvz.org https://lists.openvz.org/mailman/listinfo/users
