similar to: xenoprof: flush remaining smples when sampling is stopped.

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

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-2.6.21-xen-dom0/vmlinux

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

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

>> >> Is the nmi_sanity_check() needed? We shouldn''t lose NMIs: >> even if we take one while doing NMI processing, we sholuld >> retake the NMI as soon as the first one IRETs. >> The nmi_sanity_check() should not be needed if everything is working fine. However I suggest we should keep it for now until we are sure it is safe to remove it. I would

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 message is incorrect or the event mask is not being set correctly by oprofile. My

See below... ---------- Forwarded Message ---------- Subject: RE: [Xen-devel] xenoprof passive profiling and "mode" setting Date: Wednesday 05 July 2006 21:53 From: "Yang, Xiaowei" <xiaowei.yang@intel.com> To: "Keir Fraser" <Keir.Fraser@cl.cam.ac.uk>, "Ray Bryant" <raybry@mpdtxmail.amd.com> Cc: xen-devel@lists.xensource.com

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, opcontrol command doesn''t work. It only prints

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 only. Is there any restriction or specs which is not

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

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 is potential buffer overflow if passive is very busy while

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 to be done correctly. my command is

I am rebasing Fedora rawhide oprofile package to oprofile-0.9.7. The xenoprof patches on http://xenoprof.sourceforge.net/#download look a bit dated. The newest version is for oprofile-0.9.5. I massaged the patch oprofile-0.9.5-xen.patch to apply to oprofile-.0.9.7. Attached is that updated patch. Does this look reasonable? Is there a desire to get this into upstream oprofile? Or should the

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.xensource.com/xen-devel

Regarding Perfctr-Xen (see announcement below), some have requested author''s version of the published paper. It is available on my website: http://people.cs.vt.edu/~rnikola/?page_id=159 Please, let me know what you think. Also, I want to iterate my point regarding Perfctr-Xen vs XenoProf: XenoProf is useful but has a number of limitations such as system-wide monitoring only.

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 implementation. I see three basic areas of work. 1. Implement

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

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

# HG changeset patch # User yamahata@valinux.co.jp # Date 1188274001 -32400 # Node ID 2c9db26f1d0e0fdd4757d76a67f4b37ba0e40351 # Parent 58d131f1fb35977ff2d8682f553391c8a866d52c Make XEN_DOMCTL_destroydomain hypercall continuable. XEN_DOMCTL_destroydomain hypercall frees domain resources, especially it frees all pages of the domain. When domain memory is very large, it takes too long resulting in