Date: Fri, 21 Mar 2014 17:40:40 +0100 From: Markus Gebert <markus.gebert@hostpoint.ch> To: Christopher Forgeron <csforgeron@gmail.com> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>, Jack Vogel <jfvogel@gmail.com> Subject: Re: 9.2 ixgbe tx queue hang Message-ID: <7B586D3A-BD6B-40B1-980E-7F9FD4A49F6A@hostpoint.ch> In-Reply-To: <CAB2_NwCYtFD1hkYwO-aC%2BuyUGjU_UopExsc0Kq8afuefiSdGtA@mail.gmail.com> References: <CAB2_NwB=21H5pcx=Wzz5gV38eRN%2BtfwhY28m2FZhdEi6X3JE7g@mail.gmail.com> <1543350122.637684.1395368002237.JavaMail.root@uoguelph.ca> <CAB2_NwCGsAHdMFPoST05azb9K_O-K_khk3Bi1sF2om3puCcyCw@mail.gmail.com> <CAB2_NwC3on1xP3UAutkQa-3zu_JhK0%2B-ZjVb6_3NVemw2Or-KQ@mail.gmail.com> <CAB2_NwBSc3KWPYD-xbWYpRFTxpsKnXEr4V1ySP5g83aZM59MvQ@mail.gmail.com> <D1B4320A-DFFD-4647-8A43-238A088D7EF1@hostpoint.ch> <CAB2_NwAq-5N53hVPxOqc__kBi_QCQ0iy4fiwQJW0FTRqueN0YQ@mail.gmail.com> <34491192-F8EC-45C1-A7C8-61C3EBE5CFBD@hostpoint.ch> <CAB2_NwCYtFD1hkYwO-aC%2BuyUGjU_UopExsc0Kq8afuefiSdGtA@mail.gmail.com>
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On 21.03.2014, at 15:49, Christopher Forgeron <csforgeron@gmail.com> wrote: > However, if you can make a spare tester of the same hardware, that's > perfect - And you can generate all the load you need with benchmark > software like iometer, large NFS copies, or perhaps a small replica of your > network. Synthetic load is easier to control, and thus easier to reproduce > the issue and speed testing. Heck, you may be able to do it all by looping > through your two ix adapters and never using an external client. > > It's a bit of a pain to setup, but it's worth the effort imo. The main problem is, that all the affected systems are blades which are only connected 1gig. I think that’s the main reason we have trouble reproducing the problem and I cannot change that, because we simply lack the parts to produce any kind of 10gig connection between blades. So I will postpone this idea, especially since our problems seem very similar again. 9.2 or 10.0 does not seem to matter, at least for now. Markus
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