From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 4D4931FF170 for ; Thu, 10 Jul 2025 18:11:48 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 816B138529; Thu, 10 Jul 2025 18:12:28 +0200 (CEST) Date: Thu, 10 Jul 2025 18:11:41 +0200 To: Proxmox VE user list References: In-Reply-To: MIME-Version: 1.0 Message-ID: List-Id: Proxmox VE user list List-Post: From: Roland via pve-user Precedence: list Cc: Roland X-Mailman-Version: 2.1.29 X-BeenThere: pve-user@lists.proxmox.com List-Subscribe: , List-Unsubscribe: , List-Archive: Reply-To: Proxmox VE user list List-Help: Subject: Re: [PVE-User] A less aggressive OOM? 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To: Proxmox VE user list References: From: Roland In-Reply-To: X-Provags-ID: V03:K1:W32OGlk307yjSuOOgpqlX30uv+NlYaZBf/MC9deqStdkrmzzyh7 quxe0zQz5B9fhN7zNraCyKZYce6MwleUMvOBrS8vAadNwLTyYOE7AxfgHIrq06rLSs6DC2W xv6OxV5Cfw/TqtR0E41KQ8ByGt2TEgHkIYi8+HCapxhjAZosrJbdqQ31VfucEagKIfEwZ87 BBPekILxusR67vljW76Vg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:BOPL49jh3iI=;G/QauLoM31INVL12+GlfjoJ13Bb RuAV7HQJQFBDPG3Hy1SGa5tcH3YTuN4661DkVjDfDP3drpvpzuPc1e4kOdudJA+HseIBAwr1E W1FYyDNOPtOu4Kn1+g8ihGZFaI7d9xRtWG9UI0WMz8LmaGdd+ojdqUKpZPxfIwsBNzyMeX1Sc TDoOHsmxoWQ/EzFhR8DQS1Hkq7LPnSEYqsUWfJXLcTd13/3tv5l42uAE4/aGAiLSI/lF14npN yW4mJeoe1xkGKK2OJTEEQeGlPN4NMYdk3yrZ8LpxRIa++q9McloDKkYgScC30Gy5puE6F7eW1 kET/CUCuK2kCygATV4i4oKKHkuN2N2LlObsW8r8UPyFHexxFdSDerIxZmV4ExIN6NV60W4sQf Co/kswzl42XH4pVflWqcwbUMgUalKlrgZdu5IBIS9pO+wRgSMOhEudfKLzo4OI1z4KnsxSmyY wnI+a93qGq3UaAv0czO5hxHeqDmlAu5TEX7Q+Kd4DDpVXrqZe5P22ZVMtLMEZQcWpTlPPNi1W UMlfWlQbM3eg8pfLwZOViaVtwZYgYYLrJOz8UTy2Wxj70Fb/xhMhMS3jVkkMnL/c1v+pHvtwm 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https://www.dnswl.org/, low trust RCVD_IN_MSPIKE_H5 0.001 Excellent reputation (+5) RCVD_IN_MSPIKE_WL 0.001 Mailspike good senders RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. 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SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 imho, killing processes because of arc using too much ram which can't be= =20 reclaimed fast enough is a failure in overall memory coordination. we can set zfs limits as a workaround, yes - but zfs and oomkiller is to= =20 blame !!! 1. zfs should free up memory faster, as memory is also freed from=20 buffers/caches 2. oomkiller should put pressure on arc or try reclaim pages from that=20 first, instead of killing kvm processes.=C2=A0 maybe oomkiller could be ma= de=20 arc-aware!? roland >On 7/10/2025 11:08 AM, Roland via pve-user wrote: >if OOM kicks in because half of the ram is being used for=20 caches/buffers, i would blame OOMkiller or ZFS for tha. The problem=20 should be resolved at zfs or memory management level. >Absolutely no! >You are responsible for giving ZFS the limits. As even described in=20 the proxmox documentation here: >https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usag= e > _______________________________________________ > pve-user mailing list > pve-user@lists.proxmox.com > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user _______________________________________________ pve-user mailing list pve-user@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user Am 10.07.25 um 16:49 schrieb dorsy via pve-user: > On 7/10/2025 11:08 AM, Roland via pve-user wrote: > if OOM kicks in because half of the ram is being used for=20 > caches/buffers, i would blame OOMkiller or ZFS for tha. The problem=20 > should be resolved at zfs or memory management level. > > Absolutely no! > You are responsible for giving ZFS the limits. As even described in=20 > the proxmox documentation here: > https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usag= e > >> _______________________________________________ >> pve-user mailing list >> pve-user@lists.proxmox.com >> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user > > > > _______________________________________________ > pve-user mailing list > pve-user@lists.proxmox.com > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user --===============3780587180234557099== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ pve-user mailing list pve-user@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user --===============3780587180234557099==--