https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212681
--- Comment #8 from k...@pielorz.com --- (In reply to rainer from comment #7) Our config here is very similar - HP Proliant DL380 Gen -9- though, with local SAS disks - which we use for 'Local Storage' for XenServer, and then iSCSI off to a Synology NAS we use for primary storage of our VM's. >On local storage, the realworld-test is even slower. This troubles me, as we don't see that - but we are running the test on un-contended local storage (you don't say if you are). The times you show for that last dd run - seem to vary quite a lot: 1342177280 bytes transferred in 22.239869 secs (60350053 bytes/sec) 1342177280 bytes transferred in 38.072567 secs (35253133 bytes/sec) 1342177280 bytes transferred in 5.782933 secs (232092820 bytes/sec) 1342177280 bytes transferred in 7.891797 secs (170072452 bytes/sec) 1342177280 bytes transferred in 12.598706 secs (106532947 bytes/sec) 1342177280 bytes transferred in 7.917661 secs (169516892 bytes/sec) 13421772800 bytes transferred in 147.423047 secs (91042568 bytes/sec) Especially that last one. How busy is the node? / local disks? At this stage I'd be tempted to re-run the tests while on FreeBSD looking at the output of something like: iostat -x 1 (which will show what FreeBSD thinks the disk service time, % busy etc. are) - and on Dom0 providing the local storage running: iostat -x 1 | egrep -e "(^Device)|(^sd*)" Which will do the equivalent for Xen. Things to look out for are high % busy, and service time / queue depths. At this point I'm not sure filling the ticket with reams of debug / command output is helping much - it might be better to close this ticket - and revert to email to see if we can narrow things down to a possible cause, before re-opening the ticket again with more specific information. -Karl -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-xen@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscr...@freebsd.org"
