I just ran iperf and here is the results, bi-directional [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 1.04 GBytes 895 Mbits/sec [ 4] 0.0-10.0 sec 1.09 GBytes 935 Mbits/sec
Look like when guest is under load, it can't handle traffic and start dropping packets. On Thu, Dec 17, 2015 at 11:36 AM, Vahric Muhtaryan <vah...@doruk.net.tr> wrote: > Maybe this also could be reference > > http://42.62.73.30/wordpress/wp-content/uploads/2013/10/Neutron-performance > -testing.pdf > > > On 17/12/15 18:32, "Satish Patel" <satish....@gmail.com> wrote: > >>We have our own custom application running on guest VM. i am just >>checking performance of VM. but i found if load go little up machine >>start breaking ping. >> >>I didn't run iperf test yet. which i am going to run in a min. >> >>On Thu, Dec 17, 2015 at 11:28 AM, Vahric Muhtaryan <vah...@doruk.net.tr> >>wrote: >>> Okay Satish , >>> >>> Im not expert and do not want to divert you wrong direction. >>> I want to make your test on my server to cross check , can you pls >>>explain >>> how and with what tool and to where you are making this test. >>> >>> Regards >>> VM >>> >>> On 17/12/15 18:11, "Satish Patel" <satish....@gmail.com> wrote: >>> >>>>Thanks for reply, >>>> >>>>Following is my guest xml file. >>>> >>>>I am using Openstack JUNO and it use OVS. >>>> >>>><interface type='bridge'> >>>> <mac address='fa:16:3e:cd:2a:a4'/> >>>> <source bridge='qbrdd55b834-f8'/> >>>> <target dev='tapdd55b834-f8'/> >>>> <model type='virtio'/> >>>> <alias name='net0'/> >>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' >>>>function='0x0'/> >>>> </interface> >>>> >>>> >>>>Following is TOP command on guest machine, at this point i am getting >>>>ping breaks >>>> >>>>top - 16:10:30 up 20:46, 1 user, load average: 4.63, 4.41, 3.60 >>>>Tasks: 165 total, 6 running, 159 sleeping, 0 stopped, 0 zombie >>>>%Cpu0 : 15.1 us, 12.3 sy, 0.0 ni, 60.9 id, 0.0 wa, 0.0 hi, 0.3 si, >>>>11.4 st >>>>%Cpu1 : 22.9 us, 17.2 sy, 0.0 ni, 51.4 id, 0.0 wa, 0.0 hi, 0.3 si, >>>>8.2 st >>>>%Cpu2 : 28.8 us, 22.4 sy, 0.0 ni, 47.5 id, 0.0 wa, 0.0 hi, 1.0 si, >>>>0.3 st >>>>%Cpu3 : 16.6 us, 15.0 sy, 0.0 ni, 66.4 id, 0.0 wa, 0.0 hi, 0.3 si, >>>>1.7 st >>>>%Cpu4 : 9.8 us, 11.8 sy, 0.0 ni, 0.0 id, 75.4 wa, 0.0 hi, 0.3 si, >>>>2.6 st >>>>%Cpu5 : 7.6 us, 6.1 sy, 0.0 ni, 81.4 id, 0.0 wa, 0.0 hi, 4.2 si, >>>>0.8 st >>>>%Cpu6 : 8.1 us, 7.4 sy, 0.0 ni, 83.0 id, 0.0 wa, 0.0 hi, 1.4 si, >>>>0.0 st >>>>%Cpu7 : 17.8 us, 17.8 sy, 0.0 ni, 64.1 id, 0.0 wa, 0.0 hi, 0.3 si, >>>>0.0 st >>>>KiB Mem : 8175332 total, 4630124 free, 653284 used, 2891924 >>>>buff/cache >>>>KiB Swap: 0 total, 0 free, 0 used. 7131540 avail >>>>Mem >>>> >>>> >>>>On Thu, Dec 17, 2015 at 11:06 AM, Vahric Muhtaryan <vah...@doruk.net.tr> >>>>wrote: >>>>> Hello , >>>>> >>>>> Cool ! Todays I am testing to but not such way just only KVM. >>>>> >>>>> Wonder 2/3 things ; >>>>> >>>>> 1) Are you using virtio? >>>>> <model type='virtio¹/> >>>>> >>>>> >>>>> 2) is your vm saturating %100 of cpu inside guest ? >>>>> >>>>> 3) Using OVS or bridge ? >>>>> >>>>> Regards >>>>> Vahric Muhtaryan >>>>> >>>>> On 17/12/15 17:41, "Satish Patel" <satish....@gmail.com> wrote: >>>>> >>>>>>I am doing some testing on Openstack VM network performance. following >>>>>>i am doing >>>>>> >>>>>>Comute node: 8 CPU / 32GB mem >>>>>>VM instance: 8vCPU / 8GB mem >>>>>> >>>>>>when i am running heavy load application, immediate my ping started >>>>>>breaking for VM.. but at same time if i ping Compute Host, its working >>>>>>fine without any packet loss. >>>>>> >>>>>>I have disabled GSO/TSO setting on eth0 but still same result. i have >>>>>>notice when it reach 250mbps my ping start breaking... >>>>>> >>>>>>_______________________________________________ >>>>>>Mailing list: >>>>>>http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>>>>Post to : openstack@lists.openstack.org >>>>>>Unsubscribe : >>>>>>http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>>> >>>>> >>> >>> > > _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
