From owner-dev-commits-src-all@freebsd.org Thu Jun 17 09:20:47 2021 Return-Path: Delivered-To: dev-commits-src-all@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 2B9B96500A7; Thu, 17 Jun 2021 09:20:47 +0000 (UTC) (envelope-from danfe@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (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 "freefall.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4G5GkR0Jdqz3wQF; Thu, 17 Jun 2021 09:20:47 +0000 (UTC) (envelope-from danfe@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1623921647; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Y6zbB6hg8CpEmsGBVigTllCuuodPaCwP6w0PYD/TeJM=; b=GwNyUOybj4NBeRPUxG+hvIep2nVW5F9DPYhQ0fkPOBnQryY6bRcqviSaaMNFw6zGZsISe+ h/lUeytLwC2jqtGmDvUtlV/Dzh6R3W/cgFzfBSy9AnsfDkqvMVa+7kiVEjnK1o1kfl2kXM ic/10/oCHCyczzmDjALegT+FDYMqUM4adreRXOzNBDRzMUgV6LiW3pv413rcvJXBBmGE6z uEqulB9gmcXipcVnfpeOnLvtEDG0IziXLvEVswwKOqoVcuJplWz0muDHyE8cMeEkuYHhlG xyS7lUhBwRadK/FnvQ1ZnVU3p0Ld6tw+On44U1MEy3WNbJhdc0SPUYNcmK6DLQ== Received: by freefall.freebsd.org (Postfix, from userid 1033) id EBB331214E; Thu, 17 Jun 2021 09:20:46 +0000 (UTC) Date: Thu, 17 Jun 2021 09:20:46 +0000 From: Alexey Dokuchaev To: Warner Losh Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: 0a99422970d7 - main - Move mips and arm to 1000Hz by default. Message-ID: References: <202106170201.15H215Z6078742@gitrepo.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202106170201.15H215Z6078742@gitrepo.freebsd.org> ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1623921647; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Y6zbB6hg8CpEmsGBVigTllCuuodPaCwP6w0PYD/TeJM=; b=Rvrp4M+TcaCjru7YdKBi9taVzCxAk82k32kcHOVdWk7hCm6rtQnBOapYuxHDODR7Gza5R/ aFUVMG1BxbkEAu89gYJfcmXcGjkZLcjoEui937smRP2Y7N/qduJWHImqn4BVwL++8mTOLF fXzAUD+ovjzHxLuIJG7tpg8EruOYUJP1plHcjEgTgsuTc7SxHznA6HGCLM91IhHfQQDTZ9 inCQNTKFXlfZX6OsYTOIr4VWCOnQ9EBX9Oqzkw8xknTSEwn2r/CxtJilgAv6hp9XiIlU9g G3MSJ2lDE8CNf00JS3gKi3Gqlfew37k7DCfs+FairVkg6jXlO69E0tiuCHUSjQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1623921647; a=rsa-sha256; cv=none; b=QEYbNr6TGQrAc9e2LTyVGlfxovdi7XOdPSHP3DWTyiyfrntBvTNBiwAED2UCim+g7OyzOi B3EBBuOPbfRgQTPJ1arJR5ImP88HFp/eBSvBnFWnuq/hNHBgHA3gw/AJUY742b/+nGEwWH YmTYMyx7UHKoIP3eoycsLSRdqI58nSiWSTgXrx/MhM+zcGO2EosyFyni4cB+Aq3luggB0m gCzU92Rr/hbEHzvwHKhq6G6JZnffYxJsjz1ji1m54paYAen7VTEa8DKPRUCbFM/tDHYrre 1pl9be48xAdGRV6hvaUpYRy4USNRAzmCIMykXb0qNktghuS+R5B+DzfTMAtqUw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Jun 2021 09:20:47 -0000 On Thu, Jun 17, 2021 at 02:01:05AM +0000, Warner Losh wrote: > commit 0a99422970d7fbdb1e17724339a8dc37082f3431 > > Move mips and arm to 1000Hz by default. > > armv6 and armv7 systems already were 1000Hz. The other armv5 were a > mix of 100 and 1000. This changes them to 1000. Should there be > issues, we can add options HZ=100 to the systems that have bad > performance at the drop of a hat. Do we have this 1000Hz vs. 100Hz thing documented somewhere for those who are thinking about tuning it? There are various "optimization" howto's floating on the Internet here and there which recommend this change, so it would be nice to have some definitive documentation on the subject, e.g. in our Handbook or Wiki. ./danfe