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<!-- keep this as a security measure: * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.LCGAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.LCGAdminGroup --> ---+ Lustre Oss hardware ---+ Xen16 machine ---++ dd <verbatim> [root@xen16 ~]# dd if=/dev/zero of=/virident/thing bs=8k count=1024k 1048576+0 records in 1048576+0 records out 8589934592 bytes (8.6 GB) copied, 13.6994 s, 627 MB/s [...] do some stuff [root@xen16 ~]# dd if=/virident/thing of=/dev/null ^[[6~16777216+0 records in 16777216+0 records out 8589934592 bytes (8.6 GB) copied, 18.8337 s, 456 MB/s </verbatim> ---++ Bonnie <verbatim> [root@xen16 ~]# bonnie++ -u root -s 60000 -r 0 -b -d /virident/ Version 1.96 ------Sequential Output------ --Sequential Input- --Random- Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP xen16.lcg.cs 60000M 733 99 530557 94 298348 78 3522 99 722689 88 1078 112 Latency 11048us 14500us 194ms 2686us 4304us 5686us Version 1.96 ------Sequential Create------ --------Random Create-------- xen16.lcg.cscs.ch -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 1599 6 +++++ +++ 2253 7 1777 8 +++++ +++ 2248 6 Latency 557ms 375us 4239us 6312us 17us 5872us </verbatim> ---++ Kernel compile <verbatim> [root@xen16 virident]# time tar -xf linux-2.6.36.1.tar real 0m1.828s user 0m0.123s sys 0m1.706s [root@xen16 linux-2.6.36.1]# time make real 7m53.340s user 6m46.717s sys 1m18.671s </verbatim> ---+ KVM over local Virident card (xen16) ---++ dd <verbatim> [root@xen16 ~]# dd if=/dev/zero of=/virident/thing bs=8k count=1024k [...] do some stuff [root@xen16 ~]# dd if=/virident/thing of=/dev/null </verbatim> ---++ Bonnie <verbatim> [root@xen16 ~]# bonnie++ -u root -s 6000 -r 0 -b -d /virident/ </verbatim> ---++ Kernel compile <verbatim> [root@xen16 virident]# time tar -xf linux-2.6.36.1.tar [root@xen16 linux-2.6.36.1]# time make </verbatim> -- Main.PabloFernandez - 2011-09-05
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Topic revision: r2 - 2011-09-06
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PabloFernandez
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