Date: Fri, 21 Dec 2012 14:49:16 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Fabian Keil <freebsd-listen@fabiankeil.de> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: [RFC/RFT] calloutng Message-ID: <50D45ACC.40608@FreeBSD.org> In-Reply-To: <20121221131601.0d3ce382@fabiankeil.de> References: <50CCAB99.4040308@FreeBSD.org> <50CE5B54.3050905@FreeBSD.org> <50D03173.9080904@FreeBSD.org> <20121220115629.3379a261@fabiankeil.de> <50D2F923.2020303@FreeBSD.org> <20121220142600.22c4796a@fabiankeil.de> <50D3201F.4080605@FreeBSD.org> <20121220191243.7cd00b2a@fabiankeil.de> <20121221131601.0d3ce382@fabiankeil.de>
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On 21.12.2012 14:16, Fabian Keil wrote: > Fabian Keil <freebsd-listen@fabiankeil.de> wrote: > >> Alexander Motin <mav@FreeBSD.org> wrote: >> >>> On 20.12.2012 15:26, Fabian Keil wrote: >>>> Alexander Motin <mav@FreeBSD.org> wrote: >>>> >>>>> On 20.12.2012 12:56, Fabian Keil wrote: >>>>>> Alexander Motin <mav@FreeBSD.org> wrote: >>>>>> >>>>>>> Experiments with dummynet shown ineffective support for very short >>>>>>> tick-based callouts. New version fixes that, allowing to get as many >>>>>>> tick-based callout events as hz value permits, while still be able to >>>>>>> aggregate events and generating minimum of interrupts. >>>>>>> >>>>>>> Also this version modifies system load average calculation to fix some >>>>>>> cases existing in HEAD and 9 branches, that could be fixed with new >>>>>>> direct callout functionality. >>>>>>> >>>>>>> http://people.freebsd.org/~mav/calloutng_12_17.patch >>>>>> >>>>>> With this patch (and the previous one, I didn't test the others) >>>>>> my mouse cursor is occasionally not reacting for short amounts of >>>>>> time (less than a second, but long enough to be noticeable). >> >>>>> Could you try to revert part of the patch, related to dev/atkbdc? I am >>>>> not strong in details of that hardware, but in comments there mention >>>>> that they are related. May be lost keyboard interrupts (which polling >>>>> rate was increased to 1 second) cause PS/2 mouse delays. >>>> >>>> I reverted the changes to sys/dev/atkbdc/* about an hour ago >>>> and so far it's looking good. I'll report back tomorrow after >>>> some more testing. > > Still looking good. Thank you. I think it may be some locking issue in atkbdc code. I'll revert that part of the patch until somebody rewrite it properly. -- Alexander Motin
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