Hey, > Hi, > > I did some testing of KVM on my woodcrest machine. And I found that > building a 2.6.19 kernel with identical configuration takes 845 sec on a > guest and 210 sec on the host. So the compile is about 4X slower on the > guest :(
I wasn't able to compile some vanilla kernels, but i did two loops on the host and guest. First, with nearly no hd read/writes. # time (for I in $(seq 1 100000) ; do echo $I > /dev/null ; done) host: 3.7s 100% guest: 4.1s 110% And a second one with hd read/writes (might have a look at strace of date, tells you that date open/closes a lot of files): # time (for I in $(seq 1 1000) ; do date > /dev/null ; done) host: 1s 100% guest: 14s 1400% i don't really know how much those tests say, but: It seems as if the hd access is the bottleneck :) fabian ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
