From owner-freebsd-bugs@freebsd.org Thu Nov 22 05:08:18 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 633C81137720 for ; Thu, 22 Nov 2018 05:08:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id D13818A732 for ; Thu, 22 Nov 2018 05:08:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 940B5113771F; Thu, 22 Nov 2018 05:08:17 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 822BC113771E for ; Thu, 22 Nov 2018 05:08:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 0DCC38A731 for ; Thu, 22 Nov 2018 05:08:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 3F72B6DC1 for ; Thu, 22 Nov 2018 05:08:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id wAM58Goo048510 for ; Thu, 22 Nov 2018 05:08:16 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id wAM58Gkq048509 for bugs@FreeBSD.org; Thu, 22 Nov 2018 05:08:16 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: bugs@FreeBSD.org Subject: [Bug 233395] In FreeBSD 11.x contigfree takes too much time on Xeon Gold 5115 CPU Date: Thu, 22 Nov 2018 05:08:16 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: steevanxperia@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: 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-Rspamd-Queue-Id: D13818A732 X-Spamd-Result: default: False [1.46 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_SPAM_LONG(0.42)[0.416,0]; NEURAL_SPAM_SHORT(0.69)[0.685,0]; NEURAL_SPAM_MEDIUM(0.36)[0.355,0]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Nov 2018 05:08:18 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233395 --- Comment #1 from Steevan --- I tried contacting SuperMicro and then Intel tech support. Both suggested t= hat the issue could be specific to FreeBSD OS.=20 So later I tried FreeBSD 12 Beta 3 version on this server with Xeon Gold 5= 115 CPU. All these problems have disappeared. In this FreeBSD 12 Beta3 also contigf= ree takes much more time compared to contigmalloc.=20 However when I compare the absolute values to FreeBSD 11.x number I can see huge improvement in FreeBSD 12 Beta 3. Now in FreeBSD 12 Beta3 my PCIe card driver takes just a few seconds to load and few seconds to unload.=20 However on FreeBSD 11.x it takes 2+ minutes to load and upto 15 minutes to unload.=20 Hence it looks like the problem is with FreeBSD 11.x.=20 Hope the attached simple program in original bug report helps you guys to reproduce this issue.=20 Best Regards, Steevan --=20 You are receiving this mail because: You are the assignee for the bug.=