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[Xen-bugs] [Bug 717] hdparm reports much slower cached I/O in dom0/domU
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| Subject: | [Xen-bugs] [Bug 717] hdparm reports much slower cached I/O in dom0/domU than on native OS |
| From: | bugzilla-daemon@xxxxxxxxxxxxxxxxxxx |
| Date: | Sun, 22 Oct 2006 21:36:43 -0700 |
| Delivery-date: | Sun, 22 Oct 2006 21:37:43 -0700 |
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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=717 inakoshi.hiroya@xxxxxxxxxxxxxx changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |inakoshi.hiroya@xxxxxxxxxxxx | |om ------- Comment #1 from inakoshi.hiroya@xxxxxxxxxxxxxx 2006-10-22 21:36 ------- Our result was below. Cached IO degradation was improved in some degree. But I am not so sure if we can say that the original degradation problem has been solved. Xen : ia64-unstable C/S 11810 Native: rhel4u4 Xen0 : linux-2.6.16.29-xen XenU : linux-2.6.16.29-xen o hdparm -tT /dev/sda2 buffered IO: native 93.297 MB/s dom0 92.969 (0.99) domU 92.743 (0.99) cached IO: native 5959.69 MB/s dom0 5481.489 (0.92) domU 5037.761 (0.85) The values are averaged over 10 times trials. -- Configure bugmail: http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. _______________________________________________ Xen-bugs mailing list Xen-bugs@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-bugs |
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