From nobody Tue Oct 05 19:41:55 2021 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id EA09F9F3C3D; Tue, 5 Oct 2021 19:41:58 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-qk1-x736.google.com (mail-qk1-x736.google.com [IPv6:2607:f8b0:4864:20::736]) (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 4HP7JQ63NNz4r4v; Tue, 5 Oct 2021 19:41:58 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: by mail-qk1-x736.google.com with SMTP id 72so128594qkk.7; Tue, 05 Oct 2021 12:41:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=WKMj1o76IXKbQG5vUYLB/+XdG85qh/hv+Q2dEK1yJUg=; b=ofuogPir++tjKblTCclIXHAMlm8sWfl6M+WbFzoqlVz5cNcK49mwcuC1NB8Qs0tbC7 bxSfXPostSUQrQaAj1IxBigWdVPnqtIiVRq4R/0UwCPAWhLEsUiCEpjop8aKdc5XD1wl LnxMRYECikinWobSKaX2/siwR+UU0a1WJxKoijNcjY+1A8uvQSL8poG++17/UmBegRIE fSJzDFPvqD/N1vTglNX7S0+YuasgVdqLL51UCvHdxk/KFjAVEuJxrrrGTyiJlU+FaOKW HjWUOleT8s39FZHb6og9+/3IW2lzXkJL46wujEVtYrp6f7+gNx2xw6FmvSzg0qsVKkhB +/mg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=WKMj1o76IXKbQG5vUYLB/+XdG85qh/hv+Q2dEK1yJUg=; b=2fKjisUr810KskAnJRXzBcpF6Y/FQ/AJNQriJPxEjh7nzlxqycrV5byGq6Cbid4ImN qhO86pq0dKyE6Px6s+BM3WRv4ms9ssXVedrNvKpXAtOU8ru+vAleyCqM735RQKnOxdMx fj3TuxlMUq/ET26qjgWdg9mx6YVfV1ktSsWdeUP8+BhWHncYArPPtW3q1WhcllsH8pGE Y9FLFGOGS09l++8IvAVPMbulfPc7RDnojpXrLp6MaSa9gdQUSbuej8eEqQnC71UW8Qtb /ljM5PdZ0xo/sFgo3NO9vt9gFwHh6GJVSigmM2nZYRYANl83lQKsi59/1GL4SbWmayfL idiA== X-Gm-Message-State: AOAM533Ag70gi/rxR5Aoq6hx4iWrF6r4uTC7irNqctIglqU7O5fcl+jB rEvK3s33HigX1UXv96KcbWZvYhLbFGA= X-Google-Smtp-Source: ABdhPJzp2beuFT1qRZvN0Uun2h5OUhJ1pNEDgIfScdgvtsuz9SVyCxiPVMsV2OWZuOLa4c/0sdweyA== X-Received: by 2002:a37:2d46:: with SMTP id t67mr16033818qkh.84.1633462917975; Tue, 05 Oct 2021 12:41:57 -0700 (PDT) Received: from mavoffice.ixsystems.com ([38.32.73.2]) by smtp.gmail.com with ESMTPSA id b18sm934725qtq.62.2021.10.05.12.41.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 05 Oct 2021 12:41:56 -0700 (PDT) Sender: Alexander Motin Subject: Re: git: 730ea72c706e - main - cam(4): Limit search for disks in SES enclosure by single bus To: Alan Somers Cc: src-committers , dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org References: <202110051904.195J48iO062191@gitrepo.freebsd.org> From: Alexander Motin Message-ID: Date: Tue, 5 Oct 2021 15:41:55 -0400 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4HP7JQ63NNz4r4v X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N On 05.10.2021 15:14, Alan Somers wrote: > On Tue, Oct 5, 2021 at 1:04 PM Alexander Motin wrote: >> >> The branch main has been updated by mav: >> >> URL: https://cgit.FreeBSD.org/src/commit/?id=730ea72c706ef8e025616772cfd86fd89ed3d42e >> >> commit 730ea72c706ef8e025616772cfd86fd89ed3d42e >> Author: Alexander Motin >> AuthorDate: 2021-10-05 19:01:16 +0000 >> Commit: Alexander Motin >> CommitDate: 2021-10-05 19:01:16 +0000 >> >> cam(4): Limit search for disks in SES enclosure by single bus >> >> At least for SAS that we only support now disks are typically >> connected to the same bus as the enclosure. Limiting the search >> scope makes it much faster on systems with multiple buses and >> thousands of disks. >> >> Reviewed by: imp >> MFC after: 2 weeks >> Sponsored by: iXsystems, Inc. >> Differential Revision: https://reviews.freebsd.org/D32305 >> --- >> sys/cam/scsi/scsi_enc_ses.c | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/sys/cam/scsi/scsi_enc_ses.c b/sys/cam/scsi/scsi_enc_ses.c > > > Sounds juicy. Do you have any benchmarks? I don't think we've benchmarked that system with payload yet, if that is what you mean, polishing usability. But I don't think there can be too much interesting, since big speeds don't require so many HDDs these days, but much smaller number of SSDs instead. This particular system is about capacity -- ~20PiB raw on 1248 disks in one ZFS pool. :) -- Alexander Motin