search for: creditscheduler

Hello List, I am testing a XCP1 CentOS 5 paravirt vm with CloudLinux. http://cloudlinux.com/ CloudLinux is a great product for shared hosting and I was evaluation same on a paravirt guest. I found a strange thing in XCP. CloudLinux provides xen kernel for DomUs and after installing the CloudLinux in a DomU it actually got 32 cpus inside. I had assigned only 2 vCPU to that DomU. To confirm this I

Hello List, I am testing a XCP1 CentOS 5 paravirt vm with CloudLinux. http://cloudlinux.com/ CloudLinux is a great product for shared hosting and I was evaluation same on a paravirt guest. I found a strange thing in XCP. CloudLinux provides xen kernel for DomUs and after installing the CloudLinux in a DomU it actually got 32 cpus inside. I had assigned only 2 vCPU to that DomU. To confirm this I

...uler by adding settings cpu_weight=128 and cpu_cap=20 in the configuration file itself. Though I haven't located any references to this feature from Xen's documentation or anywhere at the internet. More information about the Xen Credit Scheduler at <http://wiki.xensource.com/xenwiki/CreditScheduler>. PS: I discovered this when I was testing `xm list --long' and there was cpu_weight and cpu_cap settings. -- Jaakko Heusala Sendanor Email: jheusala at sendanor.fi GSM: +358 40 7099704 Fax: +358 8 5555477 WWW: http://www.sendanor.fi/

...gh to my XPSP3 DomU with Mediaportal as the streaming app. Anyhow, I was having performance issues with my mpeg2 streams as well. I ended up doing the following on my Q6600: xm vcpu-set Domain-0 3 xm sched-credit -d DomU -w 2048 With the Dom0 pinned to 3 cpus, and my DomU on the fourth, and the creditscheduler set much higher on my DomU the CPU utilization is much less of a problem. Originally my CPU usage would spike for no reason in my DomU, now it rarely does if at all. Unfortunately, giving my DomU 2 CPU''s seems to break something in Mediaportal. I was able to pin the service to 1 CPU but I...

Hi everyone, I''ve created a new Wiki page [1] to document my understanding of the credit scheduler as I try to figure out the code. Please feel free to add/correct! [1] <http://wiki.xensource.com/xenwiki/CreditScheduler> Thanks, Diwaker -- Web/Blog/Gallery: http://floatingsun.net/blog _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, Agonizing about a strategy for installing, when I know nothing about it. I suspect that in spite of the flexibility in choices for a dom0 operating system, I think it''s probably really important to get it all right. I guess there are some burning questions here that might clear everything up if I could answer: 1. Assuming I install Xen, a handful of VMs and have it all set up, is

Hi all, I''ve a linux dom0, a dom1 winxp sp2 (WinXP) and another winxp sp2 with 2 vcpu (WinXP_02) Dom2 uses all the dom0 idle: I mean this vm uses too much resources, it seems something wrong in configuration. This is strange because the other win xp uses very few resources I''ll attach some useful output.. Suggestions? (domain (domid 4) (on_crash restart) (uuid

Hi, I have a problematic CentOS XEN server and hope someone could point me in the right direction to optimize it a bit. The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can take, 1U chassis) on an Intel motherboard with a 1TB SATA HDD. dom0 is set to 512MB limit with a few small XEM VM's running: root at zaxen01:[~]$ xm list Name ID

On a selection of boxes, ntpd running in Xen Dom0 reproducibly exhibits extermely high noise/jitter. Switching back to -default, non-xen kernel ntpd runs with very low jitter/noise. Question -- how can I ''tame'' ntpd noise & jitter when running in Dom0? Is the problem a config issue, or a bug? Already reported this downstream; everybody''s "stumped".

On a selection of boxes, ntpd running in Xen Dom0 reproducibly exhibits extermely high noise/jitter. Switching back to -default, non-xen kernel ntpd runs with very low jitter/noise. Question -- how can I ''tame'' ntpd noise & jitter when running in Dom0? Is the problem a config issue, or a bug? Already reported this downstream; everybody''s "stumped".