Does the license of the vmware server you used allow the publication of your results?
On Mon, Nov 17, 2008 at 01:30:31PM +0100, Martin Vogt wrote: > > > Hello list, > > I did some benchmarks over the weekend and compared > kvm-78 on a 2.6.27.4-2-default against vmware server 2.0.0-122956 > > Host Machine: > - Host E8400 (3GHz) 2GB RAM > - virtual machines are on iSCSI or NFS > - virtual machine is booted with -m 1024 and e1000 > > 1. Bench > ========= > > Installation of SuSE 11.1: (time to finish) > 1. iSCSI kvm : 48 min > 2. NFS kvm : 54 min (qcow image) > 3. VMWare : 38 min > > 2. Bench > ======== > Booting of SuSE 11.1 beta4 (from grub to getty prompt) > (with coldcache, http://linux-mm.org/Drop_Caches) > > 1. iSCSI kvm : 33 sec > 2. NFS kvm : 44 sec > 3. VMWare : 34 sec > > same, with "hotcache". > > 1. iSCSI kvm : 22 sec > 2. NFS kvm : 23 sec > 3. VMWare : 21 sec > > 3. Bench > ========= > Now the NIC performance from within the VM to the outer world, > (measured with tcpspray--program writes to the discard service over tcp) > > VM->outer world > > 1. iSCSI kvm : 12 MB/s > 2. NFS kvm : 12 MB/s > 3. VMWare : 50 MB/s > > now the reverse: > > outer world->VM > > 1. iSCSI kvm : 50 MB/s > 2. NFS kvm : 50 MB/s > 3. VMWare : 100 MB/s > > but here the kvm results varies from 30MB/s - 70MB/s > > > 4. Bench > ======== > > Now iozone benchmarks, which measure the "virtual drive" of the > VM: IOZone write a 2GB file to /tmp , writes it again reads it and reads > it again. (Two runs with 2GB and 4GB file size) > > 1. iSCSI-kvm: > KB write re-writeread re-read > 2097152 24131 25349 44325 46055 > 4194304 25056 25419 44917 44654 > avg: 24593 25382 44621 45354 > > > 2. NFS-kvm: > KB write re-writeread re-read > 2097152 7584 37846 43334 42654 > 4194304 12185 20558 37075 40029 > avg 9884 29202 40204 41341 > > 2a (because of qcow effect) second run: > KB write re-writeread re-read > 2097152 35980 33474 42010 43395 > 4194304 21675 20732 37976 39134 > avg 28827 27103 39993 41264 > > > 3 VMWARE: > KB write re-writeread re-read > 2097152 56168 47829 12568 11688 > 4194304 47315 32088 10897 10801 > avg 51741 39958 11732 11244 > > > > RESULT > ======= > > > As a result I would say, that the virtual NIC in VMware is much faster > (if you see tcpspray as benchmark) > And the write performace of VMWare is better 50MB/s againt 29MB/s in > kvm. But VMWare seems to have a horrible read performance (11MB/s vs. > 44MB/s) > > But in general VMWare is faster, at least during the installation > benchmarks (38min vs 48 min with kvm) > Maybe these benches could give an idea for future improvements, but > I wont say that kvm is slow, its fast enough, but maybe has room for > improvements. :-) > > regards, > > Martin > > > > > > > > > > > > > > > > > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
