Date: Tue, 29 May 2018 16:04:12 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 187718] [igb] UDP bad performance and out-of-order packet with iperf3 and igb(4) drivers Message-ID: <bug-187718-7501-GpHRGmGxhQ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-187718-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-187718-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D187718 Rodney W. Grimes <rgrimes@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rgrimes@FreeBSD.org --- Comment #4 from Rodney W. Grimes <rgrimes@FreeBSD.org> --- I suspect that the iperf3 data here is pretty meaningless as the single thr= ead has saturated a core (data shows 96% cpu usage) and high packet losses, probably caused by that saturation. To get meaningful data from iperf3 you must insure you do not saturate the single thread core it is running on. I also suggest locking it to a core w= ith affinity. --=20 You are receiving this mail because: You are the assignee for the bug.=
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