Displaying 20 results from an estimated 400 matches similar to: "[XENOPROFILE] Xenoprof passive profiling broken under cs 13062"
2006 Sep 15
10
[HVM][XENOPROFILE][RFC][0/3] xenoprofile HVM patches
Keir,
The following 3 patches allow HVM (SVM and VT) guests to be passively
profiled using the very latest patches from Renato. These patches apply
to 11470.
Renato''s patches:
http://xenoprof/sourceforge.net oprofile-0.9.1-xen-r2.patch
And also a patch not posted FAIK
(oprofile-0.9.1-fix-hvm-addr-overlap.patch) which is in the attached
tar.bz2 file.
hvm_xenoprofile_1.patch -
The first
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, opcontrol command doesn''t work. It only prints
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 implementation. I see three basic
areas of work.
1. Implement
2007 Oct 22
1
xenoprof with 2.6.9 kernel - "timer mode" problem
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 >
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 >
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 to be done correctly.
my command is
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
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Xen-users mailing list
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
_______________________________________________
Xen-users mailing list
2007 Apr 03
7
question about memory auto-translate and paravirtual and no pseudophysical overlay
hi
I try to understand the code of xen memory
there are gmfn, gpfn and pfn in the xen
and in the /xen/include/xen/mm.h there are some explanation about them
as follows:
* 1. gpfn/gpaddr: A guest-specific pseudo-physical frame number or address.
* 2. gmfn/gmaddr: A machine address from the p.o.v. of a particular guest.
* 3. mfn/maddr: A real machine frame number or address.
* 4.
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 hardware performance counters don''t be mounted
after initialization
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 hardware performance counters don''t be mounted
after initialization
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.
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Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
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 is potential
buffer overflow if passive is very busy while
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
2008 May 30
2
relationship of the auto_translated_physmap feature and the shadow_mode_translate mode of domain
2011 Nov 28
6
xenoprof patch for oprofile-0.9.7
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
2007 Dec 11
13
[PATCH] Enable Core 2 Duo Performance Counters in HVM guest
Hi, Keir,
Currently, HVM guests do not have access to performance counters. So it
is not possible to use performance analyzer software such as vtune in
HVM guest to analyze programme performance. Other usage of performance
counters , for example, the NMI watchdog, won''t function either.
This patch will enable performance counters in HVM guest. Currently,
only Core 2 Duo is implemented.
2006 Sep 15
2
Question: how to unmap memory mapped with direct_kernel_remap_pfn_range() ?
Hi,
Xenoprof buffers are mapped into the kernel using
direct_kernel_remap_pfn_range().
I need to unmap the buffer when it is not needed anymore.
However, I could not find any function that unmaps pages previously
mapped with direct_kernel_remap_pfn_range().
Any suggestion on how to do this?
Thanks
Renato
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Xen-devel mailing list
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