Date: Tue, 25 Aug 2015 01:17:58 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Eric Joyner <ricera10@gmail.com> Cc: stable@freebsd.org Subject: Re: dev.ix.0.queueX.interrupt_rate Message-ID: <20150824221758.GF21849@zxy.spb.ru> In-Reply-To: <CA%2Bb0zg9YpHbx0fMtyF5JoYtLL9BL5AsFYyTUGOCf2RcMt-KN8g@mail.gmail.com> References: <20150824192926.GL3158@zxy.spb.ru> <CA%2Bb0zg9YpHbx0fMtyF5JoYtLL9BL5AsFYyTUGOCf2RcMt-KN8g@mail.gmail.com>
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On Mon, Aug 24, 2015 at 10:13:05PM +0000, Eric Joyner wrote: > What's strange about it? The interrupt rate only changes if traffic goes > out on the queue, and so if whatever applications you use don't utilize the > core the queue is bound to, then the interrupt rate won't change. > > Or are you confused about the units? I know ixl(4) uses usecs instead of > Hz, so ix(4) should probably change to use that at some point. By default `hw.ix.max_interrupt_rate: 31250` and I confused about some queue exceed this. And I can set dev.ix.0.queue4.interrupt_rate to 31250 (by sysctl) and this changes accepted. I am to be out of it. > On Mon, Aug 24, 2015, 12:29 PM Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > > > I have '82599ES 10-Gigabit SFI/SFP+ Network Connection' and see > > strange: > > > > # sysctl dev.ix.0 | grep interrupt_rate > > dev.ix.0.queue7.interrupt_rate: 500000 > > dev.ix.0.queue6.interrupt_rate: 500000 > > dev.ix.0.queue5.interrupt_rate: 31250 > > dev.ix.0.queue4.interrupt_rate: 31250 > > dev.ix.0.queue3.interrupt_rate: 31250 > > dev.ix.0.queue2.interrupt_rate: 500000 > > dev.ix.0.queue1.interrupt_rate: 500000 > > dev.ix.0.queue0.interrupt_rate: 500000 > > > > Last -stable, no tuning. Is this normal? > > > > _______________________________________________ > > freebsd-stable@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >
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