From owner-freebsd-stable@freebsd.org Fri Mar 5 17:58:55 2021 Return-Path: Delivered-To: freebsd-stable@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 6F3DE56182D for ; Fri, 5 Mar 2021 17:58:55 +0000 (UTC) (envelope-from dewayne@heuristicsystems.com.au) Received: from hermes.heuristicsystems.com.au (hermes.heuristicsystems.com.au [203.41.22.115]) (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 (2560 bits) client-digest SHA256) (Client CN "hermes.heuristicsystems.com.au", Issuer "Heuristic Systems Type 4 Host CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Dsb8F3Bl1z3DV8 for ; Fri, 5 Mar 2021 17:58:52 +0000 (UTC) (envelope-from dewayne@heuristicsystems.com.au) Received: from [10.0.5.3] (noddy.hs [10.0.5.3]) (authenticated bits=0) by hermes.heuristicsystems.com.au (8.15.2/8.15.2) with ESMTPSA id 125HvS6O061496 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT) for ; Sat, 6 Mar 2021 04:57:29 +1100 (AEDT) (envelope-from dewayne@heuristicsystems.com.au) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=heuristicsystems.com.au; s=hsa; t=1614967049; x=1615571850; bh=yYeGkeN9IxgtmQuvZVab4FhD0GFfLXT8pLjZdIdMZYI=; h=Subject:To:From:Message-ID:Date; b=GE4O55NJ6BNvjaDrKXCYxnzyZDESsJivejSA++ha+QqPIEIR7wZy3UNvledGdZXck n68H6fVW5lsdnkVs9G3VloJ60dSBol8y8mX/16gGUz+Fbsfron1oFN0+QqUxLaAnau rG9zzzs1x5vPXK4fQlkUKcTiSk9y1wB5WfjIsFjWti7oaSDNIQOeG X-Authentication-Warning: b3.hs: Host noddy.hs [10.0.5.3] claimed to be [10.0.5.3] Subject: Re: Filesystem operations slower in 13.0 than 12.2 To: freebsd-stable@freebsd.org References: <202103051121.125BLbIi060340@nuc.oldach.net> From: Dewayne Geraghty Message-ID: <0a44dd37-1ae4-7481-c728-d37292640143@heuristicsystems.com.au> Date: Sat, 6 Mar 2021 04:57:26 +1100 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 MIME-Version: 1.0 In-Reply-To: <202103051121.125BLbIi060340@nuc.oldach.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4Dsb8F3Bl1z3DV8 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=heuristicsystems.com.au header.s=hsa header.b=GE4O55NJ; dmarc=none; spf=pass (mx1.freebsd.org: domain of dewayne@heuristicsystems.com.au designates 203.41.22.115 as permitted sender) smtp.mailfrom=dewayne@heuristicsystems.com.au X-Spamd-Result: default: False [-6.20 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; HAS_XAW(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; RCVD_IN_DNSWL_MED(-0.20)[203.41.22.115:from]; DKIM_TRACE(0.00)[heuristicsystems.com.au:+]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:1221, ipnet:203.40.0.0/13, country:AU]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[heuristicsystems.com.au:s=hsa]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_MED(-2.00)[heuristicsystems.com.au:dkim]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; DMARC_NA(0.00)[heuristicsystems.com.au]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-stable] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Mar 2021 17:58:55 -0000 Thanks Helge, there is a 10% increase in involuntary context switching which suggests that other things were occurring on the testing platform during the 13.0B4 run or 13 has adversely changed? (And I'd discount the latter due to the voluntary CS being similar across runs) I appreciate you taking the time to perform difference tests, but think that your tests need to be run under identical conditions :)