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 18F6F920DC for ; Mon, 13 Mar 2023 11:16:40 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id E54449C40 for ; Mon, 13 Mar 2023 11:16:09 +0100 (CET) Received: from bastionodiso.odiso.net (bastionodiso.odiso.net [IPv6:2a0a:1580:2000::2d]) (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 11:16:08 +0100 (CET) Received: from kvmformation3.odiso.net (formationkvm3.odiso.net [10.3.94.12]) by bastionodiso.odiso.net (Postfix) with ESMTP id 7E9AE80B8; Mon, 13 Mar 2023 11:16:01 +0100 (CET) Received: by kvmformation3.odiso.net (Postfix, from userid 0) id 7122224920E; Mon, 13 Mar 2023 11:16:01 +0100 (CET) From: Alexandre Derumier To: pve-devel@lists.proxmox.com Date: Mon, 13 Mar 2023 11:16:00 +0100 Message-Id: <20230313101600.1041713-1-aderumier@odiso.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.024 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% HEADER_FROM_DIFFERENT_DOMAINS 0.25 From and EnvelopeFrom 2nd level mail domains are different KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods NO_DNS_FOR_FROM 0.001 Envelope sender has no MX or A DNS records SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record Subject: [pve-devel] [PATCH qemu-server] qemu options: add memory_allocator 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: Mon, 13 Mar 2023 10:16:40 -0000 Add optional memory_allocator. Default is glibc malloc, tcmalloc is available to improve performance of ceph librbd. Signed-off-by: Alexandre Derumier --- PVE/QemuServer.pm | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm index 40be44d..8de6c82 100644 --- a/PVE/QemuServer.pm +++ b/PVE/QemuServer.pm @@ -723,6 +723,14 @@ EODESCR description => "List of host cores used to execute guest processes, for example: 0,5,8-11", optional => 1, }, + memory_allocator => { + optional => 1, + type => 'string', + enum => [ qw(glibc tcmalloc) ], + default => 'glibc', + description => "Configure qemu process memory allocator. tcmalloc improve performance of ceph librbd", + optional => 1, + }, }; my $cicustom_fmt = { @@ -5909,6 +5917,10 @@ sub vm_start_nolock { my $run_qemu = sub { PVE::Tools::run_fork sub { + + $ENV{LD_PRELOAD} = "/usr/lib/x86_64-linux-gnu/libtcmalloc.so.4" + if $conf->{memory_allocator} && $conf->{memory_allocator} eq 'tcmalloc'; + PVE::Systemd::enter_systemd_scope($vmid, "Proxmox VE VM $vmid", %systemd_properties); my $tpmpid; -- 2.30.2