From owner-dev-commits-src-all@freebsd.org Thu Jun 17 09:31:15 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 8EA1565031B; Thu, 17 Jun 2021 09:31:15 +0000 (UTC) (envelope-from gljennjohn@gmail.com) Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4G5GyV4mGtz4RGF; Thu, 17 Jun 2021 09:31:14 +0000 (UTC) (envelope-from gljennjohn@gmail.com) Received: by mail-ej1-x630.google.com with SMTP id he7so8668968ejc.13; Thu, 17 Jun 2021 02:31:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:in-reply-to:references:reply-to :mime-version:content-transfer-encoding; bh=9+0ZySCmnc8Rrvu59yW/rZXljduRcYmOYO0wc1rwvpg=; b=PRauV2RoKpAcmHxKFnoxaKu4PgT+BlQKpy2oDz3ATx+0T0NUMvVRWrJov3DH2gFeIu A1tSUm1aszDHNLSVr1lNjPwNNr5hWxsBlipLBcUe/H0h24Jg483aDjtRU4QyAPwpLNYK 8xVgLYpYLtMe/9xZT/jSzbfbo4FHKZi9Yi+XlJAFdHOmmIvGK6UvhIdUMUIVgPzhneET p6PY27D5XSrCabVleU1nCOXSvBbzVqd8PyOvgrNhxHsuvFlz5UaWDW6JAb3fkbvjGOEF +4UgS8sg5pZM87L6ku8SICipofFzWwAnz4pfFjSZBevF0LDlbdA0YLUfrOaNfxbxcYvA dGYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:reply-to:mime-version:content-transfer-encoding; bh=9+0ZySCmnc8Rrvu59yW/rZXljduRcYmOYO0wc1rwvpg=; b=jFB8GkfGleQEoIQpk+qEfrtACLMoFV/U4c83Z/JeO67CeP1bCLM61eIzGQfP6z42yy fUcTZAH4Eq4wc1onVvknxEhIDr0l3lCWswBT+f6dYeUZU/daaPZfHw6FR/aqCt79CFej XBw9Fo9hB5OOCz55kCxmOlhppUL//jyvtDOzWjTtj4r3q+fi5eA2IWV4riRm23DZtyUY 6F9y+ZM6D7yl1E1KE4dCYvvopVHQsBWa/tmDbDTURBajLTnD2mlvEdYnDyk7l0q2Qw7N +aY6NAKDTm6p1AQrSplQ8ZY0IvZZ1dxpdxvRC2FjUuEDX7uNfV8IHjpZatPmPlfllbhh 9ogw== X-Gm-Message-State: AOAM532zjLU941mlzxrZRUEuao3h6kcw/G/avsArZr7OrSaXcFvq9SJP sQlBZyLZc4UWGSSPCyBg7f24eBRsgjE= X-Google-Smtp-Source: ABdhPJyhV8l/swtBjILgjsqYzoBUY+BIrseoE+/+uPYwc0GY2BZzc6cN6W++70xyq17+G1xuQ5eGXg== X-Received: by 2002:a17:906:2bc6:: with SMTP id n6mr4288324ejg.256.1623922273239; Thu, 17 Jun 2021 02:31:13 -0700 (PDT) Received: from ernst.home (pd9e2360f.dip0.t-ipconnect.de. [217.226.54.15]) by smtp.gmail.com with ESMTPSA id m26sm923240ejl.26.2021.06.17.02.31.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Jun 2021 02:31:12 -0700 (PDT) Date: Thu, 17 Jun 2021 11:31:11 +0200 From: Gary Jennejohn To: Alexey Dokuchaev Cc: Warner Losh , 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: <20210617093111.5a537750@ernst.home> In-Reply-To: References: <202106170201.15H215Z6078742@gitrepo.freebsd.org> Reply-To: gljennjohn@gmail.com X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; amd64-portbld-freebsd14.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4G5GyV4mGtz4RGF X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=PRauV2Ro; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of gljennjohn@gmail.com designates 2a00:1450:4864:20::630 as permitted sender) smtp.mailfrom=gljennjohn@gmail.com X-Spamd-Result: default: False [-2.10 / 15.00]; HAS_REPLYTO(0.00)[gljennjohn@gmail.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2a00:1450:4864:20::630:from]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RECEIVED_SPAMHAUS_PBL(0.00)[217.226.54.15:received]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_REPLYTO(0.00)[gmail.com]; NEURAL_SPAM_MEDIUM(0.90)[0.904]; SPAMHAUS_ZRD(0.00)[2a00:1450:4864:20::630:from:127.0.2.255]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::630:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[dev-commits-src-all,dev-commits-src-main] 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 09:31:15 -0000 On Thu, 17 Jun 2021 09:20:46 +0000 Alexey Dokuchaev wrote: > 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. > It's discussed in /sys/conf/NOTES, but most users probably wouldn't think about looking there. An entry in the Handbook or Wiki could be useful. -- Gary Jennejohn