From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 129C6910EF for ; Fri, 10 Mar 2023 11:53:20 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id DE58B1FB1C for ; Fri, 10 Mar 2023 11:52:49 +0100 (CET) Received: from kerio.tuxis.nl (alrami.saas.tuxis.net [31.3.111.57]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Fri, 10 Mar 2023 11:52:45 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=tuxis.nl; s=mail; h=from:reply-to:subject:date:message-id:to:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=/RE5DlP6rHhQBCQsip+aoA4iQLFNB/sl2S3e+6sdx5o=; b=FzPaPOwckUxlJWYm6r6kXbwQMU9tBafoc8IXOduexfg5RD+IQbHAVfvK+eWhTHR9DH/3D2mYpnbWB 2IAIYbeJV4fx+641Z030PzzGFE40R3UzJB5X4FaGA/bWQin6fCmho7/P80Jv9brGCCbIT/+mhSJAOg wTqgVmnyjpUBlH8NcMaXntNDBjswy+tuqtyS2pAoyK7zAYmaAAMyK91u0WJOP+M8ue9ZitCfXdOLme U2s41CXqMplq64Ic5pwBHDM9xytxRfU66EMw1LEYytUuf1tvauSngIa87tAkc+RTP1SCIx4crV+IV7 RM9JvvtVIahMxrvdjtz5nRqG9PsbNvQ== X-Footer: dHV4aXMubmw= Received: from [IPv6:2a03:7900:64::1000] ([2a03:7900:64::1000]) (authenticated user mark@tuxis.nl) by kerio.tuxis.nl (Kerio Connect 10.0.0) with ESMTPSA (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)); Fri, 10 Mar 2023 11:52:43 +0100 From: "Mark Schouten" To: Roland , "Proxmox Backup Server development discussion" , "Thomas Lamprecht" Date: Fri, 10 Mar 2023 10:52:37 +0000 Message-Id: In-Reply-To: <205dd8f8-a0f6-8146-27c1-f53d9b98b838@web.de> References: <11d3a67b-bc11-483f-c25b-2c6b634e4326@proxmox.com> <205dd8f8-a0f6-8146-27c1-f53d9b98b838@web.de> Reply-To: "Mark Schouten" User-Agent: eM_Client/9.2.1608.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-SPAM-LEVEL: Spam detection results: 0 AWL -0.036 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: Re: [pbs-devel] Slow overview of existing backups X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Mar 2023 10:53:20 -0000 Hi, > >- 2 three-way mirrors of 960GB Samsung PM9A3 nvme=E2=80=99s as special d= evices > >ah ok, i see you should have fast metadata access because of special devic= e > That=E2=80=99s what I would expect yes. But maybe I can try to set primaryc= ache=20 to metadata, not sure if that would have a negative impact on=20 prefetching though.. >what about freshly booting your backup server and issuing > >zpool iostat -rv > >after listing backups and observing slowness ? There are too many clusters connected to this machine to make it=20 =E2=80=99silent=E2=80=99 for a while and debugging this. =E2=80=94 Mark Schouten, CTO Tuxis B.V. mark@tuxis.nl / +31 318 200208