Date: Tue, 27 Oct 2015 19:57:29 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: Strange results of TP-Link WDR3600 wired ethernet performace test Message-ID: <562F74B9.9030400@grosbein.net> In-Reply-To: <562F70A1.9010701@grosbein.net> References: <562E44E9.8090605@grosbein.net> <562E5D17.7030700@rdtc.ru> <CAJ-VmokyYVPmsY9BU=tRV6zYWweqsECwmYexv_mMpbFob%2ByjRw@mail.gmail.com> <562F70A1.9010701@grosbein.net>
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On 27.10.2015 19:40, Eugene Grosbein wrote: > To be precise: first it forwards traffic just fine, without interrupt storm > and speed may raise over 22MByte/s but after a minute or less, > interrupt storm begins. By default, hw.intr_storm_threshold is 1000 > and it does not help increasing it upto 100,000. If I set it to zero > (disable throttling), the device locks up solid when storm occurs: > no traffic forwarding, no ping replies, even console is dead. > Power cycle is required to revive it. This is 100% repeatable. > > I have PMC (performance monitoring counters) compiled in kernel. > Now can I try to debug this? s/Now/How/
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