similar to: PAPI + perfctr on CentOS 5?

Hi all: We have a user who needs to do some work with PAPI, which requires the perfctr patch applied to the kernel proper. Before I do that work here, I wanted to ask the list if anyone knows of a repo where such kernels are available? Also, if anyone has gone down this route and has helpful hints, perspectives, horror stories, etc., I would covet that information also. Cheers and Thanks,

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.

Hello all, I have developed a instrumented pass which insert some variables between the original variables, as well as insert some code into the original source code. just like: ============= original source code ============= int a[10]; void fun1 () { // some source code here } ========================================= ============= instrumented source code ============= int

Guys, Someone have any idea how could I measure the execution time of each LLVM basic block of a program? I tried to use some profiling tools like gcov and perf, but as far as I know they can only give me the frequency that each basic block is executed. I was thinking about writing a pass to add PAPI instructions in each LLVM basic block. Do you think is a good idea? Thanks Vanderson M.

Jon, I need to create a database of basics blocks and their execution time. The only thing I'm concerned is if a block A is more expensive than a block B. Do you think that even with the overhead I would be able to get the A > B information? Like: overhead + time(A) > overhead + time(B) => A > B. If so, I'm not too much concerned about the accuracy. Not sure if I was clear,

Hi all, I have installed a CentOS-8 server to accomplish some tests using kvm guests ? All these guests are centos8 also. When these guests starts, I always see errors like: [ 589.687915] kvm [2133]: vcpu0, guest rIP: 0xffffffff81a5bc98 disabled perfctr wrmsr: 0xc2 data 0xffff [ 596.210773] kvm [2201]: vcpu0, guest rIP: 0xffffffffb885bc98 disabled perfctr wrmsr: 0xc2 data 0xffff Is this a

On 2/24/13 10:07 AM, Lu Mitnick wrote: > Hello all, > > I have developed a instrumented pass which insert some variables > between the original variables, > as well as insert some code into the original source code. just like: > > ============= original source code ============= > > int a[10]; > > void fun1 () { > // some source code here > } > >

I have 2 new boxes that I cannot use yet because of problems supporting these newer chipsets in 5.1. Does anyone know when the CD version of 5.0 x86-64 that has support for these chipsets be available on any on a Centos mirror? Has the support for these chipsets been added to yum yet? Here are my latest results with these chipsets and Centos 5.1 1. Asus P5K, E6850, P35 Chipset: Does not

On 8 June 2015 at 06:40, Samuel Pitoiset <samuel.pitoiset at gmail.com> wrote: > This commit introduces the NVIF_IOCTL_NEW_V0_PERFMON class which will be > used in order to query domains, signals and sources. This separates the > querying and the counting interface. Hey Samuel, I've merged patches 1-4 already, I've got some comments on this one, but after they're solved

I've a the following happen a couple times now, and my internet searches are failing to locate an answer to the problem. We've got a few servers that primarily house VMs using KVM. They've got E-3 cpus and 32 GB RAM, and they run stock CentOS 6.4, fully patched (not yet migrated to 6.5). The VM disk images are housed on an NFS server. None of the VMs is particularly

-------------- next part -------------- An embedded message was scrubbed... From: John Criswell <criswell at cs.uiuc.edu> Subject: Re: [LLVMdev] A simulation tool Date: Tue, 1 Sep 2009 17:23:34 -0500 Size: 2903 URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090901/c1e167ca/attachment.eml>

yue wrote: > hi, > about [LLVMdev] another question > > thanks > > yueqiang One other thing you might want to try is to put your object tree in a directory that is *not* inside of your source tree. Currently, we don't support using separate object trees that are subdirectories of the source tree. In other words: Will work: ========== SRC_ROOT=/home/yue/llvm

> -----Original Message----- > From: Chris Murphy > Sent: Tuesday, February 17, 2015 20:48 > > On Tue, Feb 17, 2015 at 7:54 AM, Jason Pyeron wrote: > >> I'd post the entire dmesg somewhere > > > > http://client.pdinc.us/panic-341e97c30b5a4cb774942bae32d3f163.log > > At least part of the problem happens before this log starts. Feb 15 23:41:19

> -----Original Message----- > From: Chris Murphy > Sent: Tuesday, February 17, 2015 3:58 > > I think the panic is the consequence of drive write failure. > So the actual > problem is before the panic call trace. Most of the time it panics without any warning, but once there was: > > -----Original Message----- > > From: Jason Pyeron > > Sent: Sunday,

Hello, Can somebody recommend CentOS-OK, dual socket motherboards for compute elements? A quick look up at Intel pages suggests they are thinking of them as "server boards", but then they recommend them as "for SMB", I'm somewhat puzzled about it. It would be nice to know what MBs you are using, pros and cons. Thank you in advance -- Eduardo Grosclaude Universidad

Hello, I'm executing my byte code program by the lli tool using mcjit. I need a way to find statistics about the number of instructions executed for my program. The -stats option does not include this value, are there any other way to know? I need this information to compare different versions of my bytecode program. Please advice Thanks in advance Sara Elsohbaky --------------

Author: jpk Repository: /hg/zfs-crypto/gate Revision: e7e07b2f4fcfbe725493f4074f9e9f0d8bfd8e1c Log message: PSARC/2002/762 Layered Trusted Solaris PSARC/2005/060 TSNET: Trusted Networking with Security Labels PSARC/2005/259 Layered Trusted Solaris Label Interfaces PSARC/2005/573 Solaris Trusted Extensions for Printing PSARC/2005/691 Trusted Extensions for Device Allocation PSARC/2005/723 Solaris

There is a posting in the CentOS forum that can potentially make a good article regarding encryption (or supplement the existing page). Please take a look at #4 of: http://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=15923&forum=42 The poster says, "I think that the contents of this document would make a good addition to the wiki, but I don't have the

Hello. With the help of the community I finished polishing the translation of my PHP script to Bash version http://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=20222&forum=38 It has now autodetection of architecture and CentOS version and handles errors. I have published an article under my homepage here: http://wiki.centos.org/VladislavRastrusny/AutoRPMForgeRepo

Since C8.1 kvm guests have a huge delay while booting on a kvm host based on C6. This delay was not present with C8.0. The "pause" happend direct after the grub step. The VNC session shows only a "_" character. Any ideas what changes? -- Leon