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/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248652 --- Comment #3 from Vincenzo Maffione <vmaffione@FreeBSD.org> --- It looks like you get 2.6 Mpps because you are not getting enough interrupts... have you tried to measure the interrupt rate in the two cases (current vs 11, no busy wait)? Intel NICs have tunables to set interrupt coalescing, for both TX and RX. Maybe playing with those changes the game? -- You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.help
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