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 02062920F1 for ; Mon, 13 Mar 2023 13:49:09 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id D78F2B3F1 for ; Mon, 13 Mar 2023 13:48:38 +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 ; Mon, 13 Mar 2023 13:48:37 +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=u4Jz7BWfEBHGXUN2B3t1TXzTbUeBVsPo3vfSeqcir7w=; b=r7W6+XLAW73XBnHR+BdBWiR3lBFPqsWrFPsSosHetRxOkBvuVfX9iVPhynVc4DFuxvfc0+WvD9IJg S3/AtnRxE6XUySXfbGRlzn0f5w7M6pFMaKBNYea9mdkP47Ssl9ufVRd+sTdPcF3KiYvBUI5JIMlW0N T040+sxOIEpjGIQ/HOihVIRuBqSCXzFhgfaBqhpz2S8ymAj3Uy106P2nOIlJR1ekRDvAhcbki0XlaJ 7zvww4GMlgMOOb+wUce/ji5KY0E3LRhI235+9OFGNJL/RzquV0NcV8bpNF4zMlrkYce19SWShVXQ/l jzAtLUduAhKA91Sl4tyo1zaCtQUcyRg== X-Footer: dHV4aXMubmw= Received: from [IPv6:2a03:7900:64::1004] ([2a03:7900:64::1004]) (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)); Mon, 13 Mar 2023 13:48:30 +0100 From: "Mark Schouten" To: Roland , "Proxmox Backup Server development discussion" , "Thomas Lamprecht" Date: Mon, 13 Mar 2023 12:48:24 +0000 Message-Id: In-Reply-To: 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 -0.035 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: Mon, 13 Mar 2023 12:49:09 -0000 So, setting primarycache to metadata does not help. Maybe even makes the=20 overview worse. Requesting one specific customer takes 55 seconds. This is a datastore=20 with 334 groups and 2991 snapshots (About 53TB of total data in this=20 datastore). =E2=80=94 Mark Schouten, CTO Tuxis B.V. mark@tuxis.nl / +31 318 200208 ------ Original Message ------ >From "Mark Schouten" To "Roland" ; "Proxmox Backup Server development=20 discussion" ; "Thomas Lamprecht"=20 Date 3/10/2023 11:52:37 AM Subject Re[2]: [pbs-devel] Slow overview of existing backups >Hi, > >> >- 2 three-way mirrors of 960GB Samsung PM9A3 nvme=E2=80=99s as special= devices >> >>ah ok, i see you should have fast metadata access because of special devi= ce >> > >That=E2=80=99s what I would expect yes. But maybe I can try to set primary= cache to metadata, not sure if that would have a negative impact on prefetc= hing 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 =E2=80=99= silent=E2=80=99 for a while and debugging this. > >=E2=80=94 >Mark Schouten, CTO >Tuxis B.V. >mark@tuxis.nl / +31 318 200208