 Home |
Products |
Support |
Community |
News |
xen-users
[Xen-users] User-time vs system-time in DomU
| To: | Xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-users] User-time vs system-time in DomU |
| From: | "Lamia M.Youseff" <lyouseff@xxxxxxxxxxx> |
| Date: | Thu, 23 Mar 2006 23:11:49 -0800 |
| Delivery-date: | Fri, 24 Mar 2006 07:13:35 +0000 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-users-request@lists.xensource.com?subject=help> |
| List-id: | Xen user discussion <xen-users.lists.xensource.com> |
| List-post: | <mailto:xen-users@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-users-bounces@xxxxxxxxxxxxxxxxxxx |
| User-agent: | Mozilla Thunderbird 1.0 (Windows/20041206) |
Dear list,I have a question about Xen performance that I did not find answered anywhere. I am using /usr/bin/time tool to track the performance of my application, which reports on user time, sys time, real time as well as CPU %. I noticed that my application finishes in almost the same real time for DomU as in native kernel. However, I got almost double the user time, sys time and the cpu%. It is important to me to understand why the time is doubled. What does user time, Real time and sys time refer to in DomU? Thank you for your reply in advance, Lamia Youseff Xen3-2.6.12 55.07usr 3.03sys 2:07.94real 45%CPU Linux-2.6.12 37.30usr 1.30sys 2:06.95real 30%CPU _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | [Xen-devel] XEN 3.0 KDB patch for linux 2.6.12, Abhijit chaudhary |
|---|---|
| Next by Date: | Re: [Xen-users] User-time vs system-time in DomU, Randy Thelen |
| Previous by Thread: | [Xen-devel] XEN 3.0 KDB patch for linux 2.6.12, Abhijit chaudhary |
| Next by Thread: | Re: [Xen-users] User-time vs system-time in DomU, Randy Thelen |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
