search for: xenoprof

Displaying 20 results from an estimated 69 matches for "xenoprof".

2010 Jan 22
7
Is it possible that xenoprof active domain profiling using pvops jeremy''s kernel
my system configuration xen 3.4.2, oprofile 0.9.5( xenoprof patched ), dom0( jeremy''s pvops kernel 2.6.31.6 - patched dullor''s xenoprof patch ), domU( vanilla kernel 2.6.32 with paravirt enabled ), distribution( ubuntu 9.10 ) In passive mode, xenoprof seems to work well, opreport showed good information. but, in active mode, it seems not...
2006 Dec 15
5
[XENOPROFILE] Xenoprof passive profiling broken under cs 13062
Renato, If one creates an HVM domain (say domain 1) and then does echo 1 > /dev/oprofile/passive_domains one then gets the following on the Xen serial console: (XEN) xenoprof.c:143:d0 xenoprof/x86 with autotranslated mode enabledisn''t supported yet (XEN) xenoprof.c:143:d0 xenoprof/x86 with autotranslated mode enabledisn''t supported yet (XEN) xenoprof.c:143:d0 xenoprof/x86 with autotranslated mode enabledisn''t supported yet (XEN) xenoprof.c:...
2009 Nov 06
18
xenoprof: operation 9 failed for dom0 (status: -1)
Renato, When I tried running "opcontrol --start" (after previously running "opcontrol --start-daemon") in dom0, I get this error message: /usr/local/bin/opcontrol: line 1639: echo: write error: Operation not permitted and this message in the Xen console: (XEN) xenoprof: operation 9 failed for dom 0 (status : -1) It looks like opcontrol is trying to do this: echo 1 > /dev/oprofile/enable and it is failing. "operation 9" maps to XENOPROF_start which is consistent with running "opcontrol --start." At first, I ignored the error because it gav...
2009 Nov 06
18
xenoprof: operation 9 failed for dom0 (status: -1)
Renato, When I tried running "opcontrol --start" (after previously running "opcontrol --start-daemon") in dom0, I get this error message: /usr/local/bin/opcontrol: line 1639: echo: write error: Operation not permitted and this message in the Xen console: (XEN) xenoprof: operation 9 failed for dom 0 (status : -1) It looks like opcontrol is trying to do this: echo 1 > /dev/oprofile/enable and it is failing. "operation 9" maps to XENOPROF_start which is consistent with running "opcontrol --start." At first, I ignored the error because it gav...
2012 May 07
5
Xenoprof (0.9.5) in PVOPS
Hi All. I''m trying to use xenoprof in my Xeon machine with PVOPS (3.1.0 kernel) & xen 4.1.1. In the past, I had failed to use the xenoprof in this environment. (1 year ago) While baremetal booting shows the counter object in /dev/oprofile/0 (or 1,2,3) , booting with xen fails to create those objects. Of course, opc...
2008 Feb 01
11
xenoprof error
Hi , I am getting following error when i try to run xenoprof /usr/local/bin/opcontrol: line 1082: echo: write error: Invalid argument Using 2.6+ OProfile kernel interface. Reading module info. Using log file /var/lib/oprofile/oprofiled.log Daemon started. what is this write error ? Any help is really appreciated. -John _________________________________...
2008 Feb 01
11
xenoprof error
Hi , I am getting following error when i try to run xenoprof /usr/local/bin/opcontrol: line 1082: echo: write error: Invalid argument Using 2.6+ OProfile kernel interface. Reading module info. Using log file /var/lib/oprofile/oprofiled.log Daemon started. what is this write error ? Any help is really appreciated. -John _________________________________...
2010 Dec 20
0
simple question about xenoprof
I''m trying to use xenoprof in my machine (xeon x5650, westmere). While oprof works for this machine correctly, xenoprof doesn''t work properly. I want to use xenoprof in NMI mode (which is the opposite side of timer mode, right?) However, kernel message always shows that xenoprof works in the timer mode...
2011 Jan 07
7
Don''t mount hardware performance counter using xenoprof
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 hardw...
2011 Jan 07
7
Don''t mount hardware performance counter using xenoprof
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 hardw...
2006 Aug 16
0
Xen 3.0.2 and Xenoprof
Hello Xen Users, I am trying to Patch the linux-2.6-sparse source tree to get it working with Xenoprof. I have obtained the patch from the Xenoprof source forge website maintained by HP. http://xenoprof.sourceforge.net/ However, I am unable to apply the patch as the source-tree structure expected by the patch is different from the one in 3.0.2 distribution. Has anyone encountered this probl...
2006 Apr 21
13
Xenoprof in an HVM domain
I''m looking into getting Xenoprof to tun in an HVM domain, since we will eventually need a profiler for HVM domains to track down areas of poor performance. (HVMs have poor performance? :) ) Being relatively new to OProfile, Xenoprof, and Xen internals, I would appreciate any pointers, tips, and comments on how to work the implem...
2007 Oct 22
1
xenoprof with 2.6.9 kernel - "timer mode" problem
2011 Jun 28
4
Require solution for "xenoprof: Initialization failed. Intel processor model 44 for P6 class family is not supported“
HI all : I got the message "Using timer interrupt." when trying the command "opcontrol --list-events". then I found infomation "xenoprof: Initialization failed. Intel processor model 44 for P6 class family is not supported“ after "xm dmesg". the TYPE OF CPUS here is Intel(R) Xeon(R) CPU E5620 @ 2.40GHz. So does it really not support this type of processor and is there any fix that may solve it ? need help......
2008 Jul 29
0
Xenoprof error and missing Xen-syms events
Hello everyone, I''m trying to run Xenoprof (Oprofile 0.9.4) in Gentoo Linux 2.6.21-xen (64 bit) on an AMD 64 system and am facing the following two issues: 1. Xenoprof complains about a write error, but starts and runs anyway. dom0 # opcontrol --start-daemon --active-domains=0 --event=CPU_CLK_UNHALTED:75000::1:1 --vmlinux=/usr/src/linux...
2007 Dec 13
0
xenoprof: flush remaining smples when sampling is stopped.
xenoprof: flush remaining smples when sampling is stopped. Xenoprof notifies guest kernel via VIRQ_XENOPROF when sampled. But it does coarsly based on heuristic so that sometimes VIRQ_XENOPROF isn''t delivered resulting in that oprofile daemon collects no sample. To avoid that situation, always sen...
2006 Apr 28
8
[PATCH] Xenoprof passive domain support
Hi Renato, This patch is to add Xenoprof passive domain support in SMP environment. Basically: - It allocates per vcpu buffers for passive domain and maps them into primary domain''s space. - When primary domain gets sampled and triggers virq, its kernel module will handle passive domain'' samples besides its owns. There...
2006 Oct 02
1
re:Small fix for xenoprof problem.[solved] and more questions
The problem was because it is missing the "loop" module. the hotplug loads it automatically, while udev does not. The error xenoprof: Initialization failed. Intel processor model 15 for P6 class family is not supported" does not interference the winxp load.. so its ok. Does anyone know how to load osx86? It hangs at "booting from cd-rom". do I need kqemu/qemu xen? I think xen uses bosch right now.. so how to swit...
2006 May 15
20
[PATCH 0/3] xenoprof fixes
These patches address issues in the kernel part of xenoprof: * Ill-advised use of on_each_cpu() can lead to sleep with interrupts disabled. * Race conditions in active_domains code. * Cleanup of active_domains code. Comments welcome. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xens...
2008 Jul 29
0
xenoprof bug ?
Hi, I ran xenoprof with the event mask LLC_MISSES:10000. This should be L2 cache misses on Core2 arch. After the run when I run opreport it displays : Counted *L2_RQSTS* events (number of L2 cache requests) with a unit mask of 0x41 (multiple flags) count 10000 LLC_MISSES:10000 | ..... My questions was whether the...