Date: Sun, 18 Oct 2020 17:10:35 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 248652] iflib: netmap pkt-gen large TX performance difference between 11-STABLE and 12-STABLE/CURRENT on ix & ixl NIC Message-ID: <bug-248652-7501-eQuRJyy2sq@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 #21 from Sylvain Galliano <sg@efficientip.com> --- (In reply to Vincenzo Maffione from comment #19) result using 1 queue: ixl1: PCI Express Bus: Speed 8.0GT/s Width x8 ixl1: netmap queues/slots: TX 1/1024, RX 1/1024 sysctl dev.ixl.0.iflib.nm_tx_tmr_us=3D50 194.333930 main_thread [2638] 11.896 Mpps (11.902 Mpkts 5.710 Gbps in 10004= 97 usec) 341.33 avg_batch 99999 min_space pkt-gen cpu usage: 35% sysctl dev.ixl.0.iflib.nm_tx_tmr_us=3D5 235.070929 main_thread [2638] 14.754 Mpps (15.543 Mpkts 7.082 Gbps in 10535= 21 usec) 390.14 avg_batch 99999 min_space pkt-gen cpu usage: 56% sysctl dev.ixl.0.iflib.nm_tx_tmr_us=3D1 266.392925 main_thread [2638] 14.748 Mpps (14.762 Mpkts 7.079 Gbps in 10009= 98 usec) 407.41 avg_batch 99999 min_space pkt-gen cpu usage: 66% Using 6 queues configured, max pps is 17Mpps, even when using low nm_tx_tmr= _us value (1 us) pkt-gen cpu usage: 82% --=20 You are receiving this mail because: You are on the CC list for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-248652-7501-eQuRJyy2sq>