Date: Fri, 14 Aug 2020 15:32:50 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 248652] netmap: pkt-gen TX huge pps difference between 11-STABLE and 12-STABLE/CURRENT on ix & ixl NIC Message-ID: <bug-248652-7501-H6nOeIJTpI@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-248652-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-248652-7501@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248652 --- Comment #3 from Vincenzo Maffione <vmaffione@FreeBSD.org> --- It looks like you get 2.6 Mpps because you are not getting enough interrupt= s... have you tried to measure the interrupt rate in the two cases (current vs 1= 1, no busy wait)? Intel NICs have tunables to set interrupt coalescing, for both TX and RX. M= aybe playing with those changes the game? --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-248652-7501-H6nOeIJTpI>