From owner-freebsd-net@freebsd.org Sun Oct 18 17:10:37 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id F07554372BB for ; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4CDmcF6Ckxz4jPl for ; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id D54E943731B; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) Delivered-To: net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D516943758B for ; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CDmcF5LSwz4jRr for ; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9C49215D31 for ; Sun, 18 Oct 2020 17:10:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 09IHAbKh071635 for ; Sun, 18 Oct 2020 17:10:37 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 09IHAbe6071634 for net@FreeBSD.org; Sun, 18 Oct 2020 17:10:37 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f 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 Date: Sun, 18 Oct 2020 17:10:35 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.0-STABLE X-Bugzilla-Keywords: iflib, needs-qa, performance, regression X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: sg@efficientip.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: vmaffione@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? mfc-stable12? mfc-stable11- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Oct 2020 17:10:38 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248652 --- Comment #21 from Sylvain Galliano --- (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.=