similar to: scheduling differences between CentOS 4 and CentOS 5?

Hello, I am running linux red hat 7.2 and still somewhat unfamiliar to its commands. I am administrator to an ISP with about 80 clients and would like to regulate the speed of uploads and downloads. I understand that I need to place everybody in different class''. Could I get help how to use tc/QBC to limit bandwith and impliment a u32 (or fwmark) filter that names mac

I'm seeking a small IMAP server, and dovecat was recommended by those more savvy than me. (The sign on my monitor is "My programming language is solder..") so I'll be getting help to deploy this, but first... I've read through the wiki docs but still have questions, ones likely too obvious for most readers.... There will be <100 users, the platform will Debian, and I

Hi all, I am trying to set processor affinity for a specific process using a shell script without result. Script: #!/bin/sh -x cpu_affinity_ok="2" cpu_affinity="taskset -p -c `cat /tmp/test.pid` | awk '{print $6}'" if [ -f /tmp/test.pid ]; then if [ "$cpu_affinity" == "$cpu_affinity_ok" ]; then exit 0 else taskset -p -c 2

On Mon, Mar 25, 2019 at 05:34:25PM +0000, Richard W.M. Jones wrote: > On Sat, Mar 23, 2019 at 02:29:54PM -0500, Eric Blake wrote: > > On 3/20/19 5:11 PM, Richard W.M. Jones wrote: > ... > > > + for (i = 0; i < block_list->numBlocks; ++i) { > > > + uint64_t offset, length; > > > + > > > + offset = block_list->blocks[i].offset *

Hi all, I am trying to run some performance tests using libvirt 1.2.17. For these tests it is necessary to set a specific affinity for the VCPUs of a running VM. The problem is, that I noticed a significant performance drop in my metrics when using 'vcpupin' from the virsh console instead of running 'taskset' natively. Specifically the methods I am comparing are 1.

Hi, I'm running centos-4.4 on an SMP system with 4 dual core opterons (2.4 GHz), and 16 GB memory. The disk drives are 500 GB SATA-Drives. Wondering about times for dd command performance and rm command performance in an empty machine (the filesystem has been made with "mkfs.ext3 /dev/sd...", nothing more) 1. Making a new 3 GB (1024 x 3megabytes blocks) file with dd needs 10.18

Hello I am using memtester V4.0.5 on x86_64 arch (4x PROC-4GB total) and it works fine. When I want to launch it on only one CPU with the taskset cmd the machine crashes. here is the cmd i am using taskset 0x00000002 ./memester 1000 known issue ? Thanks Jean-Pierre

Hi. Can anyone confirm if vcpupin works correctly with kvm? If set I pin a vcpu it shows up correctly via vcpuinfo, but querying via taskset shows the cpu is not pinned. Thanks, -Geoff -- ---- Geoff Galitz, ggalitz at shutterstock.com WebOps Engineer, Europe Shutterstock Images http://wwww.shutterstock.com/

i have ubuntu 11.04 with wine 1.3.27 amd athlon x2 64 ati radieon 3100 i use this path to start the client /home/nick/.wine/drive_c/"Program Files"/Sony/EverQuest/eqgame.exe taskset -c 0 patchme -opengl it goes to black screen and gives the following UIErrorLog created at Sat Sep 10 19:41:40 2011 [Sat Sep 10 19:41:40 2011] Warning: file EQLSUI.xml not found in directory

Hello, According to the docs, vcpupin will use either cgroups or sched_setaffinity to pin vcpu threads to cpus. How is this decision made? I observe differences even on different hosts featuring the same version of libvirtd (1.3.1): on one host vcpupin affects cpuset.cpus (cgroup), and on the other it affects vcpu threads affinity (observed through taskset). Thanks, Nikos -------------- next

On 12/03/2013 12:52 AM, Nicolas Sebrecht wrote: > This is about CPU affinity. You may look at CPU pinning with 'vcpupin' > in the manual of virsh. It is possible to enable vCPU pinning in libvirt > guest XML. > > Don't know if libvirt supports applying CPU affinity at guest runtime Yes, 'virsh vcpupin' can be used to change CPU affinity at runtime. > but

I am playing around with irqbalance to tune my 8 core system so I came across this page, http://kb.fusionio.com/KB/a65/irqbalance-avoid-overloading-cpu-0-with-interrupt-requests.aspx Now, lets say I disable irqbalance which will stop my autobalance and I pin all of my interrupts to core 0 and pin eth0 and eth1 to core 1. My application is network and CPU hungry. I am planning to dedicate cpu 3 to

That is slowing down the build visibly, for the speed I should stick with ld at the moment. On Sun, Mar 29, 2020 at 4:42 AM Alexandre Ganea <alexandre.ganea at ubisoft.com> wrote: > Would `taskset -c 0-3 ninja check-all -j4` work? > > > > *De :* Itaru Kitayama <itaru.kitayama at gmail.com> > *Envoyé :* March 28, 2020 3:37 PM > *À :* Alex Brachet-Mialot

Good news, I was able to use up to 37 cores for LLVM build with LLD. The build speed, did not measure precisely though, is comparable to the build with GNU ld case. Thank you all for your help! On Sun, Mar 29, 2020 at 5:04 AM Alex Brachet-Mialot < alexbrachetmialot at gmail.com> wrote: > Yes unfortunately that would limit you to 4 cores. > > There’s no easy way to use lld with

The 03/12/13, lei yang wrote: > Hi experts > > I want to use libvirt doing the migration Basically, migration allows moving a VM from host to another. > migration the guest from core 0 to core 2, Is there a way to do this ? any > points? This is about CPU affinity. You may look at CPU pinning with 'vcpupin' in the manual of virsh. It is possible to enable

Hi, I have found the cpu time partitioning based on cpu shares weights not very intuitive. On RHEL64, I deployed two qemu/kvm VMs VM1 with 1 vcpu and 512 cpu shares VM2 with 2 vcpus and 1024 cpu shares I pinned their vcpus to specific host pcpus: VM1 vcpu 0 to host pcpu1 VM2 vcpu 0 to host pcpu1, VM2 vcpu 1 to host pcpu2 I executed inside the VMs a simple process that consume all

When launching Everquest, I get: Code: [steve at steve EverQuest]$ taskset -c 0 wine eqgame.exe patchme fixme:advapi:SetSecurityInfo stub err:d3d:WineD3D_CreateFakeGLContext Can't find a suitable iPixelFormat err:d3d:InitAdapters Failed to get a gl context for default adapter err:d3d:WineDirect3DCreate Direct3D9 is not available without opengl [steve at steve EverQuest]$ Fedora Core 10

I just discovered that SS2 has been tested in wine and apparently runs pretty well, so I decided to give it a shot. I intalled it from cd using the guidelines given in the AppDB, ie: i used the -ltngforce method of install, I installed the SS2Tool patch, and disabled cutscenes. Each time I run it fullscreen, the main menu is always set to 640x480, and that causes my monitor to bug out, saying

Hello, I managed, finally, to make System Shock 2 work smoothly on a Fedora 16 64-bit, wine version 1.3.33, on a computer using Intel Graphics (game installed, SSTool applied, VSync disabled, 16-bit mesa/libGL2 installed, LIBGL_DRIVERS_PATH set to /usr/lib/dri before the game is started via 'taskset -c 1') The problem was running intros. Until I run winetricks quartz devenum

Unreal Tournament works great in 1.1.4, but with one 'little' problem - the speed of game (not fps, just speed of gameplay) is changing chaotically during gameplay - for example it speeds up whe looking on the floor - strange, isnt it?? Ofc I do own dual core processor, but commands taskset 0x01 and -cpuspeed dont work. I dont understand, the Native UT goes ultra fast (and with graphic