Date: Tue, 15 Sep 2015 01:31:04 +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: <38FDBA28-95BC-4730-8335-724439BAB142@gmail.com> In-Reply-To: <55F6EF38.9040601@citrix.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> <C0A23CF2-A95C-4A9C-9F58-4AF4E1C8A589@gmail.com> <55F6EF38.9040601@citrix.com>
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I just read that you were working on importing a newer netfront from = Linux and thought that maybe this could help finding the culprint, as = KVM users seemed to have similar issues, e.g. issues with the offloading = capabilities of the pv nic and/or checksum errors. Anyhow, awesome news that you're on importing a new netfront. > On 14 Sep 2015, at 18:00, Roger Pau Monn=C3=A9 <roger.pau@citrix.com> = wrote: >=20 > El 12/09/15 a les 0.13, Sydney Meyer ha escrit: >> I just noticed that these performance problems do not occur under = 10.0 and 10.1. >>=20 >> Starting with 10.2 IPv4 TCP performance drops from ~12 Gb/s under = 10.1 to ~350 Mb/s under 10.2. >>=20 >> Should i write a new bugreport for this? >=20 > Thanks for the report! I'm sorry I didn't realize it before and 10.2 > shipped with this performance regression. I've bisected it during the > weekend and found the culprit, fix is being worked on :). >=20 > = https://lists.freebsd.org/pipermail/svn-src-all/2014-September/091787.html= >=20 > Roger. >=20
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