From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A89DB433D7 for ; Wed, 15 Nov 2023 16:00:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="laFL3KSq" Received: by smtp.kernel.org (Postfix) with ESMTPS id 249A7C433CA; Wed, 15 Nov 2023 16:00:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700064024; bh=y1TRGvJRsTZFkuNRfXuZylsqHYuk2QJrszT8bEd4m+M=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=laFL3KSqlEpdiD+70vE1v8wEe5K26pTpnCGM8chbbiZHJrzvd72fGCww5dM1MzHGU pvbITAYT0Zi0Q2l4G08ao7qpXd6lMY6wqhBbTw0YYZXIqJcx7kfb/8q1K+EZBQ6GIK mPuFO983EhwrhbwiLIbV3r5QIdj183JvzksBDcS3k1b2EOuT8DtKL/5zqKgU4Evy8h o7hqU1z11DNcTH1f8WDXnU3D2RLaeid0RXclJd0ESHP1muGV5zrsyqSQ+DNwUGiDCo 0wO6uhJapFOg6QDmEtjTkwMbIH+aa+5OPNiRrdzZ4B8rD116bVxSv/krCKAcuN4dVl ns9QyIocm3MPA== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 03CABE1F66E; Wed, 15 Nov 2023 16:00:24 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH bpf-next v3] bpf: Do not allocate percpu memory at init stage From: patchwork-bot+netdevbpf@kernel.org Message-Id: <170006402400.6377.8116008282517410601.git-patchwork-notify@kernel.org> Date: Wed, 15 Nov 2023 16:00:24 +0000 References: <20231111013928.948838-1-yonghong.song@linux.dev> In-Reply-To: <20231111013928.948838-1-yonghong.song@linux.dev> To: Yonghong Song Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, kernel-team@fb.com, martin.lau@kernel.org, kirill.shutemov@linux.intel.com Hello: This patch was applied to bpf/bpf.git (master) by Alexei Starovoitov : On Fri, 10 Nov 2023 17:39:28 -0800 you wrote: > Kirill Shutemov reported significant percpu memory consumption increase after > booting in 288-cpu VM ([1]) due to commit 41a5db8d8161 ("bpf: Add support for > non-fix-size percpu mem allocation"). The percpu memory consumption is > increased from 111MB to 969MB. The number is from /proc/meminfo. > > I tried to reproduce the issue with my local VM which at most supports upto > 255 cpus. With 252 cpus, without the above commit, the percpu memory > consumption immediately after boot is 57MB while with the above commit the > percpu memory consumption is 231MB. > > [...] Here is the summary with links: - [bpf-next,v3] bpf: Do not allocate percpu memory at init stage https://git.kernel.org/bpf/bpf/c/1fda5bb66ad8 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html