similar to: Problem with Memory Throughput Difference between Two Nodes(sockets)

Hi all, Who can tell me how to install xen4.0.1 from source on centos5.4? I cannot find the yum repositories for the version of 4.0.1. Best Wishes Qiang Ma _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi guys, On my CentOS 5.5, I installed xen by yum, and create ‘vm1’, and ‘vm1’ work well. Then I find I install a very old version of xen by yum as default. So I download xen4.0.1 source code, and installed successfully. Then I just create vm1 by the old configuration file, ‘xm create vm1’. The vm1 running well, and I can ssh onto it, but while I login it by ‘xm console vm1’, it hangs, no other

Hi, I'm proposing to make vectorizer-maximize-bandwidth on by default for loop vectorizer because it should generally help performance. I've tested the performance impact on Intel sandybridge machine with speccpu benchmarks: Benchmark Base:Reference (1) ------------------------------------------------------- spec/2006/fp/C++/444.namd 26.84

I have an odd problem. I am running an ubuntu 10.04 domu that I got from stacklet on my centos 5.5/xen4.0.1 dom0. The problem is that even sitting idle the domu has a 1.05 load with init taking up 99% of that. I have searched around but have not found what is causing the issue. I thought I remembered this being mentioned on the list before but could not find it either. My domu.cfg is as

Hi, I'm installed xen4.0.1 for testing purposes in my home gateway and when booting with xen kernel ppp connection fails. Any idea ? -- Fernando Hallberg fernando at flexdigital.com.br http://www.flexdigital.com.br Fone/Fax: +55 45 3222-3222 Cascavel - PR - Brasil -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi all, I''m using Xen4.0.1 with SLES11SP1 with Intel''s SRIOV NIC in passthrough mode to FedoraCore14 guest HVMs. From guest HVM I''m able to send packets out but not able to receive the same. Intel NIC HW counters are reporting receiving packets but the same is not reaching the guest HVM. My NIC uses MSI-X to report packets to SW. which should be received by Xen

Hi, I am working with a westemere based server. I need to find out if the NIC installed there supports SR-IOV - what would be the best way to determine that? Regards, Kashyap hwconfig ------------- Summary: HP DL160 G6, 2 x Xeon E5620 2.40GHz, 15.7GB / 16GB 1333MHz, 1 x 500GB SATA System: HP ProLiant DL160 G6, C-2N/16/500, ySPEC 25.0 Processors: 2 x Xeon E5620 2.40GHz (HT

Hi, I am trying to setup Xen to use "PV on HVM". For this, I did the following. (1) I followed the tutorial at http://wiki.xensource.com/xenwiki/Fedora13Xen4Tutorial to setup Xen4.0.1 on Fedora13. I am able to run virt-manager and create a Fedora 13 guest. (2) I followed the tutorial at http://bderzhavets.wordpress.com/2010/05/27/pv-on-hvm-at-xen-4-0-on-top-of-fedora-13/to use PV on

Currently, loop fully unroller shares the same default threshold as loop dynamic unroller and partial unroller. This seems conservative because unlike dynamic/partial unrolling, fully unrolling will not affect LSD/ICache performance. In https://reviews.llvm.org/D28368, I proposed to double the threshold for loop fully unroller. This will change the codegen of several SPECCPU benchmarks: Code

> On Jan 30, 2017, at 10:49 AM, Dehao Chen via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Currently, loop fully unroller shares the same default threshold as loop dynamic unroller and partial unroller. This seems conservative because unlike dynamic/partial unrolling, fully unrolling will not affect LSD/ICache performance. In https://reviews.llvm.org/D28368

In theory, compiler should generate bit-identical code with and without debug info. I.e. # clang -c -O2 -g a.cc -o a.g.o # clang -c -O2 -g0 a.cc -o a.g0.o # strip a.g.o a.g0.o # diff a.g.o a.g0.o The diff should find two binaries identical. For brevity, in the rest of the mail, I'll refer to this requirement as "codegen consistency" (any better name?) Unfortunately, LLVM does not

On Mon, Jan 30, 2017 at 3:51 PM Mehdi Amini via llvm-dev < llvm-dev at lists.llvm.org> wrote: > On Jan 30, 2017, at 10:49 AM, Dehao Chen via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > Currently, loop fully unroller shares the same default threshold as loop > dynamic unroller and partial unroller. This seems conservative because > unlike dynamic/partial

On Mon, Jan 30, 2017 at 3:56 PM, Chandler Carruth <chandlerc at google.com> wrote: > On Mon, Jan 30, 2017 at 3:51 PM Mehdi Amini via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> On Jan 30, 2017, at 10:49 AM, Dehao Chen via llvm-dev < >> llvm-dev at lists.llvm.org> wrote: >> >> Currently, loop fully unroller shares the same default

The large percentages are from those tiny benchmarks. If you look at omnetpp (0.52%), and xalanc (1.46%), the increase is small. To get a better average increase, you can sum up total debug_line size before and after and compute percentage accordingly. David On Thu, Oct 27, 2016 at 1:11 PM, Dehao Chen <dehao at google.com> wrote: > The impact to debug_line is actually not small. I only

The impact to debug_line is actually not small. I only implemented the part 1 (encoding duplication factor) for loop unrolling and loop vectorization. The debug_line size overhead for "-O2 -g1" binary of speccpu C/C++ benchmarks: 433.milc 23.59% 444.namd 6.25% 447.dealII 8.43% 450.soplex 2.41% 453.povray 5.40% 470.lbm 0.00% 482.sphinx3 7.10% 400.perlbench 2.77% 401.bzip2 9.62% 403.gcc

Hey everyone, It's been way too long since the last status update. Since that last edition, we've gone through the 1.0 release, fixed a ton of bugs, and implemented some neat new things. Since many people are using the 1.0 release, I'll break the changes into "before 1.0" and "after 1.0" sections: Before 1.0: ----------- 1. We've cleaned up the source base

Hello, I have a question regarding PGO instrumented BBs (I use IR-level instrumentation). It seems that instrumented BBs do not match between the two compilations for profile-gen and profile-use for some cases. Here is an example from SPECcpu 2006 lbm (a simple case consisting of just two modules). In the first compilation, we have 5 instrumentation points for the main function as follows: $

> On Jan 30, 2017, at 4:56 PM, Dehao Chen <dehao at google.com> wrote: > > > > On Mon, Jan 30, 2017 at 3:56 PM, Chandler Carruth <chandlerc at google.com <mailto:chandlerc at google.com>> wrote: > On Mon, Jan 30, 2017 at 3:51 PM Mehdi Amini via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: >> On Jan 30,

Hi, I want to use shared memory to communicate with two DomUs, and so I download a revised version of xensocket. The original version uses out-dated API and cannot run on current version of Xen. However, even with this new one, the simple test of send and recieve still doesn''t work. Here is my VMID; [root@localhost ~]# xm list Name ID

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