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)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 24C039F061 for ; Wed, 7 Jun 2023 16:55:25 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 08BF01B836 for ; Wed, 7 Jun 2023 16:54:55 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Wed, 7 Jun 2023 16:54:54 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id E355741F5D for ; Wed, 7 Jun 2023 16:54:53 +0200 (CEST) From: Fiona Ebner To: pve-devel@lists.proxmox.com Date: Wed, 7 Jun 2023 16:54:50 +0200 Message-Id: <20230607145450.84160-4-f.ebner@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230607145450.84160-1-f.ebner@proxmox.com> References: <20230607145450.84160-1-f.ebner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.047 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pve-devel] [PATCH v2 guest-common] vzdump: config: improve description of ionice setting X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Jun 2023 14:55:25 -0000 The CFQ scheduler was removed with Linux 5.0 and ionice is now used by the newer BFQ scheduler. Mention what the special value 8 does. Also mention that for snapshot and suspend mode backups of VMs, the setting only affects the compressor, because the kvm process is not a child process of vzdump then and does not inherit the ionice priority. Signed-off-by: Fiona Ebner --- No changes in v2. src/PVE/VZDump/Common.pm | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/PVE/VZDump/Common.pm b/src/PVE/VZDump/Common.pm index 64c4e4e..a6fe483 100644 --- a/src/PVE/VZDump/Common.pm +++ b/src/PVE/VZDump/Common.pm @@ -212,7 +212,10 @@ my $confdesc = { }, ionice => { type => 'integer', - description => "Set CFQ ionice priority.", + description => "Set IO priority when using the BFQ scheduler. For snapshot and suspend " + ."mode backups of VMs, this only affects the compressor. A value of 8 means the idle " + ."priority is used, otherwise the best-effort priority is used with the specified " + ."value.", optional => 1, minimum => 0, maximum => 8, -- 2.39.2