From owner-freebsd-performance@freebsd.org Mon Feb 8 10:31:57 2021 Return-Path: Delivered-To: freebsd-performance@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 1C81552CDEB for ; Mon, 8 Feb 2021 10:31:57 +0000 (UTC) (envelope-from mpp302@gmail.com) Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) (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 4DZ2Q41jBCz3GQY for ; Mon, 8 Feb 2021 10:31:56 +0000 (UTC) (envelope-from mpp302@gmail.com) Received: by mail-ed1-f50.google.com with SMTP id t5so17390798eds.12 for ; Mon, 08 Feb 2021 02:31:55 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=AqY3ObotmVbV6CNBXlExtXbNuF7KDrD6qRApUF4uGE8=; b=R3vxHM94DCrDnoScB8MpPnpF1r3Xh9qwgTwtQTqxfWW8t6TQjphwwJwqmJDGA9lcWf nc4pDWi6CfO/3VDs1mlk2+n4eu2vZbX8Eyddj1jna03pvaoQPdopwjRX9A8WgvOg+SDy 0AEKJ7zLmgduKalDFW2zMr9DniPU3iSUzbervjmpE9ykKHAf5E8T4sLh5jce/kUzCW8t un07kxesVyJHPdGbjT+4CtgN6LGnyboxN28v7STKjiUhwxgWEpI3VZ9E7JkNFx+SuyjX cNNaFpVCqICr4KnQad4az/lgfQJqbrs7W48ab8HE32edfIHSUXTvuEntAp9HmTyYL46L 4COw== X-Gm-Message-State: AOAM532gjPL4EheEwhZvUdTI6cGc2l9sIQADdfvNhvVdA/57BkyjqviG bcmVpI59MkB42P4IppBsJO3We+/c2vtvO2hF X-Google-Smtp-Source: ABdhPJxvzUHkjXnOqmXbBY0dbbQ4MYacVITgO8K/txbbUqhtRB0o92SfbW115JZPU7NBY1h10U3mvg== X-Received: by 2002:a50:bc15:: with SMTP id j21mr16374387edh.187.1612780314708; Mon, 08 Feb 2021 02:31:54 -0800 (PST) Received: from [192.168.0.202] (ip5f5af629.dynamic.kabel-deutschland.de. [95.90.246.41]) by smtp.gmail.com with ESMTPSA id cb21sm9232716edb.57.2021.02.08.02.31.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 Feb 2021 02:31:53 -0800 (PST) Subject: Re: Tuning and monitoring write intensive server To: Vladilen Kozin , Walter von Entferndt Cc: freebsd-performance@freebsd.org References: <2002412.uJW0cDvVUg@t450s.local.lan> From: Mateusz Piotrowski <0mp@FreeBSD.org> Message-ID: <1bc8a9f7-866a-db31-86b8-03d875196aa9@FreeBSD.org> Date: Mon, 8 Feb 2021 11:32:29 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Rspamd-Queue-Id: 4DZ2Q41jBCz3GQY X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of mpp302@gmail.com designates 209.85.208.50 as permitted sender) smtp.mailfrom=mpp302@gmail.com X-Spamd-Result: default: False [-2.99 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17:c]; RCVD_COUNT_THREE(0.00)[3]; NEURAL_HAM_SHORT(-0.99)[-0.985]; FREEMAIL_TO(0.00)[gmail.com,posteo.net]; FORGED_SENDER(0.30)[0mp@FreeBSD.org,mpp302@gmail.com]; RECEIVED_SPAMHAUS_PBL(0.00)[95.90.246.41:received]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; R_DKIM_NA(0.00)[]; FROM_NEQ_ENVFROM(0.00)[0mp@FreeBSD.org,mpp302@gmail.com]; ARC_NA(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[209.85.208.50:from]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-performance@freebsd.org]; DMARC_NA(0.00)[FreeBSD.org]; SPAMHAUS_ZRD(0.00)[209.85.208.50:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.208.50:from]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.208.50:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-performance] X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Feb 2021 10:31:57 -0000 On 08/02/2021 11:21, Vladilen Kozin wrote: > These are excellent pointers and get me on my way! Thank you very much > Walter. Invaluable. > As a general note perhaps you may be interested in the stats(7) manual page. And the dwatch utility.