Re: [XenPPC] making xen tools on dom0 can be slow
On Tue, 2006-08-22 at 11:48 -0400, Maria Butrico wrote: By default dom0 has 64M. Under these condition make tools takes 24 minutes on a js20. Wow, that's terrible. Just as a data point, is the time more reasonable if you copy the source first then build locally? -- Hollis Blanchard IBM Linux Technology Center ___ Xen-ppc-devel mailing list Xen-ppc-devel@lists.xensource.com http://lists.xensource.com/xen-ppc-devel
Re: [XenPPC] making xen tools on dom0 can be slow
Maria Butrico wrote: This was discussed yesterday and it was suggested that I should enter a bug for this. Since then I have done a few experiments: By default dom0 has 64M. Under these condition make tools takes 24 minutes on a js20. make[1]: Leaving directory `/home/j9/xen-ppc/tools' real24m1.321s user0m34.716s sys 0m23.272s I have found this is about the case on average. This is with the xen source tree on nfs. I dismiss this as a network related problem since I see no evidence of this. By changing xen to give 128M to each domain and therefore to dom0, the same make, also with source over nfs takes less than 2 minutes. make[1]: Leaving directory `/home/j9/xen-ppc/tools' real1m15.445s user0m32.800s sys 0m14.753s I will not enter this as a bug. If anything the bug is that one might not specify the memory size for dom0. (On a related note, once we alter xen to give each domain 128M, xm create no longer works. Jimi is debugging this.) Also I reported slowness for starting xend. I am still working with this and will post to the list as soon as I have more data. Simply giving more memory to dom0 does not fix the slow xend start problem. Maria Butricointernet or sametime: [EMAIL PROTECTED]; Notes: Maria Butrico/Watson/IBM ___ Xen-ppc-devel mailing list Xen-ppc-devel@lists.xensource.com http://lists.xensource.com/xen-ppc-devel Jimi and I have looked more carefully at the xend startup problem. xend is very slow if the tools or any part of the environment variable PATH are in an nfs mounted directory. Xend starts in reasonable time if the tools are local and no part of the PATH environment variable points a to a remote directory. ___ Xen-ppc-devel mailing list Xen-ppc-devel@lists.xensource.com http://lists.xensource.com/xen-ppc-devel
