[CentOS] GFS2 performance

2011-04-22 Thread Arnts, Leo
Hi, I'm trying to get more performance out of my DRBD cluster with gfs2. It seems that our gfs2 implementation is quit slow. When running the ping_pong test we get no more than a 1000 locks/sec on the disk. ./ping_pong /mnt/backup/test.dat 4 879 locks/sec The cluster config has been updated wit

Re: [CentOS] Still a kvm problem after 5.6 upgrade

2011-04-22 Thread Daniel J Walsh
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 04/21/2011 09:47 PM, David McGuffey wrote: > > On Thu, 2011-04-21 at 21:09 -0400, David McGuffey wrote: >> On Thu, 2011-04-21 at 18:01 +0200, Kenni Lund wrote: >>> 2011/4/21 Johnny Hughes : On 04/21/2011 06:11 AM, David McGuffey wrote: > r

Re: [CentOS] Still a kvm problem after 5.6 upgrade

2011-04-22 Thread David McGuffey
On Fri, 2011-04-22 at 06:18 -0400, Daniel J Walsh wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > On 04/21/2011 09:47 PM, David McGuffey wrote: > > > > On Thu, 2011-04-21 at 21:09 -0400, David McGuffey wrote: > >> On Thu, 2011-04-21 at 18:01 +0200, Kenni Lund wrote: > >>> 2011/4/21

[CentOS] KVM, virsh attach-disk error

2011-04-22 Thread Jussi Hirvi
I try to add a fresh, unformatted disk partition to a KVM guest. I follow the directions given here: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html-single/Virtualization/index.html#proc-Virtualization-Adding_storage_devices_to_guests-Adding_physical_block_devices_to_virtualized_

Re: [CentOS] QT and oprofile on Centos Linux 5.5

2011-04-22 Thread Frank Chang
Philip Schaffner, Thank you for your reply. I guess we will have to wait until Centos 6 arrives to get a working QT. Did you see Nicolas Thierry-Mieg's response regarding yum install oprofile-gui. We were able to install oprofile-guii.i386 0:0.9.4-15.el5.centos and oprofile.i386 0.0.9.4.

Re: [CentOS] yum install oprofile-gui

2011-04-22 Thread Frank Chang
Nicolas Thierry-Mieg, We followed your instructions to yum install oprofile-gui. We were able to install oprofile-guii.i386 0:0.9.4-15.el5.centos and oprofile.i386 0.0.9.4.15.el.5.centos. I was wondering what our next step should be. I tried ./configure --with-kernel-support with oprofi

Re: [CentOS] KVM, virsh attach-disk error

2011-04-22 Thread Jussi Hirvi
I found another post (2009, on fedora-virt list), which is relevant: http://www.redhat.com/archives/fedora-virt/2009-December/msg00032.html > I have a CentOS 5.4 guest x86_64. > If I remember well (...) > hot add of scsi disk should > work if there is already a scsi disk into the guest (and if t

[CentOS] Valgrind/Callgrind 3.6.1 does not appear to work on Centos Linux 5.5

2011-04-22 Thread Frank Chang
Hi, For the last day or two I having been trying to get Valgrind/Callgrind 3.6.1 to work on Centos Linux 5.5 using a simple Fibonacci C++ program(shown below). After compiling the program using g++ -g -o MatchUpAccurate MatchUpAccurate.cpp, we run: /home/frankc/DQTTest/valgrind-3.6.1/core

Re: [CentOS] Valgrind/Callgrind 3.6.1 does not appear to work on Centos Linux 5.5

2011-04-22 Thread Tru Huynh
On Fri, Apr 22, 2011 at 03:50:25PM -0400, Frank Chang wrote: > >Hi, For the last day or two I having been trying to get >Valgrind/Callgrind 3.6.1 to work on Centos Linux 5.5 using a simple >Fibonacci C++ program(shown below). After compiling the program using g++ >-g -o MatchUpAc