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[Xen-devel] Don't mount hardware performance counter using xenoprof
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Don't mount hardware performance counter using xenoprof |
| From: | Yuto Nakai <yuto.k2c@xxxxxxxxx> |
| Date: | Fri, 7 Jan 2011 19:12:36 +0900 |
| Delivery-date: | Tue, 11 Jan 2011 03:17:09 -0800 |
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Hi, I want to use xenoprof to profile the overhead of the hypervisor. I patched the oprofile-0.9.5 using the patch from xenoprof.sourceforge.net Debian GNU/Linux 5.0 (lenny) Xen-4.0.1 + 2.6.32.27 (linux-2.6-pvops.git) Dom0 My platform is Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz My problems are: In Dom0, But hardware performance counters don't be mounted after initialization (opcontrol --init)
# ls /dev/oprofile backtrace_depth cpu_buffer_size pointer_size
buffer cpu_type stats buffer_size dump time_slice
buffer_watershed enable 0(and 1,2,3) directories are not exist. Is there any reason for this ? Any help is appreciated. Thanks, Yuto Nakai _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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