Date: Sat, 12 Sep 2015 00:13:19 +0200 From: Sydney Meyer <syd.meyer@gmail.com> To: freebsd-xen@freebsd.org Subject: Re: XenServer 6.5(SP1) - HVM 're0: watchdog timeout' errors... Message-ID: <C0A23CF2-A95C-4A9C-9F58-4AF4E1C8A589@gmail.com> In-Reply-To: <28F73DA3-DC56-47F4-922B-31D73D124981@gmail.com> References: <9CC4073DE17E3C8BD01EF7D3@[10.12.30.106]> <55EDA470.1000007@citrix.com> <C1F8BAECAFA8EB8C9A97D5FA@[10.12.30.106]> <55EDC55B.8000004@egr.msu.edu> <762F895FF087C3BBB6DB94DA@[10.12.30.106]> <BBDE686A05E03437BB32667C@[10.12.30.106]> <55EFF61A.3020409@citrix.com> <34C596D4CD79963C95725C41@[10.12.30.106]> <55F025BF.6020405@citrix.com> <28F73DA3-DC56-47F4-922B-31D73D124981@gmail.com>
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I just noticed that these performance problems do not occur under 10.0 and 10.1. Starting with 10.2 IPv4 TCP performance drops from ~12 Gb/s under 10.1 to ~350 Mb/s under 10.2. Should i write a new bugreport for this? > On 09 Sep 2015, at 22:58, Sydney Meyer <syd.meyer@gmail.com> wrote: > > Hello, > > I'm running Xen 4.4.1 on a Debian 8 Dom0 and with 2 fresh FreeBSD 10.2 DomU's (pf disabled): > > IPv4: > - Host A (FreeBSD 10.2): "dd if=/dev/zero bs=1M | nc -l 5001" ---> Host B (FreeBSD 10.2) "nc 10.0.30.95 5001 | dd of=/dev/zero bs=1M" = ~46 MB/s > - Host A (FreeBSD 10.2): "dd if=/dev/zero bs=1M | nc -l 5001" ---> Host B (CentOS 7) "nc 10.0.30.95 5001 | dd of=/dev/zero bs=1M" = ~65 MB/s > - Host A (CentOS 7): "dd if=/dev/zero bs=1M | nc -l 5001" ---> Host B (FreeBSD 10.2) "nc 10.0.30.111 5001 | dd of=/dev/zero bs=1M" = ~685 MB/s > > IPv6: > - Host A (FreeBSD 10.2): "dd if=/dev/zero bs=1M | nc -6 -l 5001" ---> Host B (FreeBSD 10.2) "nc -6 2a02:a03f:a0f:a200:216:3eff:fee0:44bd 5001 | dd of=/dev/zero bs=1M" = ~309 MB/s > - Host A (FreeBSD 10.2): "dd if=/dev/zero bs=1M | nc -6 -l 5001" ---> Host B (Centos 7) "nc -6 2a02:a03f:a0f:a200:216:3eff:fee0:44bd 5001 | dd of=/dev/zero bs=1M" = ~246 MB/s > - Host A (CentOS 7): "dd if=/dev/zero bs=1M | nc -6 -l 5001" ---> Host B (FreeBSD 10.2) "nc -6 2a02:a03f:a0f:a200:216:3eff:fe7c:c4bd 5001 | dd of=/dev/zero bs=1M" = ~352 MB/s > > Also, i can confirm problems with FreeBSD 10 acting as a router for other DomU on the same Dom0 (as in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=188261). > >> On 09 Sep 2015, at 14:27, Roger Pau Monné <roger.pau@citrix.com> wrote: >> >> Hello, >> >> El 09/09/15 a les 11.33, Karl Pielorz ha escrit: >>> >>> >>> --On 09 September 2015 11:04 +0200 Roger Pau Monné >>> <roger.pau@citrix.com> wrote: >>> >>>> I'm working on importing a new netfront from Linux, which hopefully >>>> should solve the problems we are having with the PV nic. >>> >>> That'll be great - I did test a CentOS box domU a while ago, and that >>> didn't have the problem with routing traffic, I wasn't able to test >>> things like OpenVPN/DCHP on it - but the current netfront issues are >>> annoying [there's at least 2 FreeBSD PR's I know of this would also >>> address]. >> >> Do you have an easy way to replicate those issues, right now I'm trying >> with the following: >> >> /etc/etc.conf: >> pf_enable="YES" >> >> /etc/pf.conf >> block in all >> pass out all keep state >> >> But I don't seem to be able to reproduce them. Throughput between >> DomU<->Dom0 or DomU<->DomU seems to be fine (no degradation when >> compared to pf off). >> >> Roger. >> _______________________________________________ >> freebsd-xen@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-xen >> To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org" >
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