similar to: profiling KVM i/o on CentOS 5

On Wed, Feb 15, 2023 at 03:33:44PM -0700, Ross Zwisler wrote: > Changes in v2: > * Dropped patches which were pulled into maintainer trees. > * Split BPF patches out into another series targeting bpf-next. > * trace-agent now falls back to debugfs if tracefs isn't present. > * Added Acked-by from mst at redhat.com to series. > * Added a typo fixup for the virtio-trace

On Fri, Jan 3, 2014 at 6:46 AM, yuxh <yuxinghai at cn.fujitsu.com> wrote: > Hi all, > > Happy new year! > > The existing trace mechanism in libvirt is dtrace. Although the dtrace > can work, it's not work well enough. Every time we want get information > from the trace point we must write a systemtap script and run it > together with libvirt. > > That's

Hi, I have tried to profile xapian, according to the Wiki: http://trac.xapian.org/wiki/ProfilingXapian, we can profiling I/O bound cases with oprofile, but from many other articles, it seems that we can not do it in oprofile. I have followed that wiki page, installed oprofile and libc6-dbg, but it doesn't work, only CPU bound functions are counted. Anyone know how to count I/O cost in

The CentOS development team is pleased to announce the release of CentOS 4.9 for i386 and x86_64. This release corresponds to the upstream vendor 4.9 release. Also released in the updates repository for CentOS-4.9 are all updates through March 1st, 2011. If you are currently using an older CentOS 4 version, using this command will upgrade you to CentOS-4.9: yum upgrade NOTE: The upstream

The CentOS development team is pleased to announce the release of CentOS 4.9 for i386 and x86_64. This release corresponds to the upstream vendor 4.9 release. Also released in the updates repository for CentOS-4.9 are all updates through March 1st, 2011. If you are currently using an older CentOS 4 version, using this command will upgrade you to CentOS-4.9: yum upgrade NOTE: The upstream

So, we just moved to some much faster hardware. intel q6600 CPU, 8Gb unbuffered ECC, ICH7 sata (2x1TB disks) - and we were irritated and puzzled to find that the new setup had really, really slow I/O. The odd thing is that the performance is fine if you just mount the LV directly from the Dom0... but if you xm block-attach it to the Dom0 and then mount it, you get 1/10th the speed. we are

Thanks for the info. I am using old JIT. So that should not be a problem. I will take a look at using oprofile. I have never used it - so will be somewhat of a learning curve. I notice that the configure script has a --with-oprofile option. In addition to enabling that, is there something else that also needs to be done? My copy of LLVM is compiled with --enable-optimized. Will --with-oprofile

On Thu, Mar 10, 2016 at 10:29:08PM -0500, Digimer wrote: > Hi all, > > I got a new laptop recently and what worked before no longer works > (Fedora 23 on the laptops in both cases)... > > I'm trying to get nested virtualization to work because I use the VMs > on the laptop to simulate an HA cluster that itself hosts VMs. I don't > care much at all about the

Hi Priyendra, There is support for oprofile and Intel(r) VTune(tm) Performance Analyzer, but either one needs to be explicitly turned on during the build process. If you use MCJIT (as opposed to the older JIT) then oprofile support isn't in place yet. Both of these work by providing a JITEventListener that receives notification when new code is emitted and hooks it up to the profiling tool

I intend to use this to support oprofile's ability to symbolize JITted code through the interface described at http://oprofile.sourceforge.net/doc/devel/jit-interface.html. I believe the interface will also be useful for gdb support. I'm considering adding some flags to the JITEventListener to let the JIT avoid collecting information no listener is going to use, but I won't do that

Ack, sorry. I should have sent this to llvm-commits instead. :-P Followups there please. On Wed, Jun 24, 2009 at 12:02 PM, Jeffrey Yasskin<jyasskin at google.com> wrote: > I intend to use this to support oprofile's ability to symbolize JITted > code through the interface described at > http://oprofile.sourceforge.net/doc/devel/jit-interface.html. I > believe the interface

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CentOS Errata and Bugfix Advisory 2012:1337 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1337.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 78e4e7183cabb6a0f708f24c57a8c4aaeed1d6e564aa49d4e4c85cce9fa1efa2 systemtap-1.7-5.el6_3.1.i686.rpm

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CentOS Errata and Security Advisory 2012:0376 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-0376.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: be4161ae13dff00f28989c3d0611be9a2e2c1ba455bf2f97ef84b5187873231d systemtap-1.6-5.el6_2.i686.rpm

CentOS Errata and Security Advisory 2012:0376 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-0376.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 25e6d5acd46e860911b7b445ad9d02d52d2448f74b279dc09a5b2c3b619703c9 systemtap-1.6-7.el5_8.i386.rpm

CentOS Errata and Bugfix Advisory 2017:3311 Upstream details at : https://access.redhat.com/errata/RHBA-2017:3311 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 6701d1f4b2fc20344fdbb3545ff5b4ee4b32803964093dd9d81c7cbd46b1e61a systemtap-3.1-4.el7_4.x86_64.rpm

CentOS Errata and Bugfix Advisory 2018:0149 Upstream details at : https://access.redhat.com/errata/RHBA-2018:0149 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 8c63444e7f9b64378cce961c5997daa295551fd1b421fc6c97d8d1badf1ced56 systemtap-3.1-5.el7_4.x86_64.rpm

CentOS Errata and Bugfix Advisory 2018:1981 Upstream details at : https://access.redhat.com/errata/RHBA-2018:1981 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 04a71f086e65aa335ef31be1b650c1a1b97ebb1b917b28665b7f9c2a0f622942 systemtap-3.2-8.el7_5.x86_64.rpm

CentOS Errata and Bugfix Advisory 2019:3075 Upstream details at : https://access.redhat.com/errata/RHBA-2019:3075 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: fb8b9d8d19e24baeb25fa4a350e308e0364791fc179c55463df5b5bbabdcac0b systemtap-4.0-10.el7_7.x86_64.rpm