Date: Wed, 4 Nov 2015 23:44:14 +0000 From: Rasool Al-Saadi <ralsaadi@swin.edu.au> To: Hans Petter Selasky <hps@selasky.org>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: RE: Timing issue with Dummynet on high kernel timer interrupt Message-ID: <6545444AE21C2749939E637E56594CEA3C0DE7FF@gsp-ex02.ds.swin.edu.au> In-Reply-To: <5638B7B5.3030802@selasky.org> References: <6545444AE21C2749939E637E56594CEA3C0DCCC4@gsp-ex02.ds.swin.edu.au> <5638B7B5.3030802@selasky.org>
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On Wednesday, 4 November 2015 12:34 AM, Hans Petter Selasky wrote: > On 11/03/15 14:14, Rasool Al-Saadi wrote: > > Does anyone have thoughts on what we can test next to narrow down the > root-cause of these unusual timing jumps? >=20 > You might also want to test the "projects/hps_head" branch, which uses a = bit > different callout implementation. Thanks Hans for your suggestion. I have tried "projects/hps_head" branch and the result is better (number of= spikes is less than in the master branch). However, the problem still exis= ts on the same timer interrupt frequencies (>3000 in my case). You can see = in this graph https://goo.gl/photos/C2Mqx4xhMQuzxWnz6 the RTT spikes still = there. Do you have any further suggestions?=20 Regards, Rasool > --HPS > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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