From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B9541C7EE29 for ; Fri, 9 Jun 2023 01:00:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:From:Subject:References: Mime-Version:Message-Id:In-Reply-To:Date:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=MzctFwSkWB1V0k+zNQ3uzPCH56zO2DyUyNPD5TivRm4=; b=IDJQwbsW4Jqcqn9uMhg6PHZjMk 66g6fHo+xRWBaHJGB+Z+bPRc4FmW5/mri/OeX5FEPJHhS43F1QcnRLqbXgCxc6lAneXTE46/8cnsy uqPHzj5GZIkh1d0AOiQY1AjGqe+RUBaNc9YfmqRC4F8N26NIry5teUxZsoKJ3605H/etF/raDHyPu ym/GSMRYosRPD7smHaYSOX41ZfHoPdCIQytjH16sIm6sr2rEj93Pf18CRnNBN6pZO+RN4aTzISrD0 nuAgbvwk/b9qry5WU7gR6mI+NyD22nL1w/PrlZ34cfkR6hoGu34JidVRTr3Wde7nvpYzHkFtQvGyn 0AxGGlOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q7QTn-00B7ca-1l; Fri, 09 Jun 2023 00:59:51 +0000 Received: from mail-yw1-x114a.google.com ([2607:f8b0:4864:20::114a]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q7QTj-00B7ZP-07 for linux-arm-kernel@lists.infradead.org; Fri, 09 Jun 2023 00:59:49 +0000 Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-568fa455b8fso16074327b3.3 for ; Thu, 08 Jun 2023 17:59:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1686272385; x=1688864385; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=ddXgsJixIEMqGA5wc+jEsC/2PCjKU+k92CAoSHzENIQ=; b=2gQvv8Elto4XccdRwaHPDqIj9nLGBVTBNmb86njoPvqhsd0tjtN6HCelUzSemN7wyY 71LauLyB1lnldzxzQTkfe6nQZecdjOxXtr/4StosXGI1CrlQDTJck4wzTXo8dKjjpnV4 D20udOm2zFIzHEQ51hLEe5UarHwCpaC6lXinX2YwMS98bkU6dZgz2pBUAz+mzsFIorM8 xdmbpgNfTyxvCAzBTy+SieKUu3Kw2LKLwSnetOswWodGDZgbdEkzkIsg0JKEhFrOZU8p T4WBKVoS8Yje74KiF7RZvIKnuSmaC0kPLDwvUqdU+Fm/Ozb38xa28j2ttI0hrtP0j54l z55w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686272385; x=1688864385; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ddXgsJixIEMqGA5wc+jEsC/2PCjKU+k92CAoSHzENIQ=; b=CWDM/tC3Ed+RPRHv7MQ3N56ltxzJkDJLuhBVt5uoXYePMH5wDaelapTM4gYCBxEYmR GouUrzVD1I6Z/kANMP3CRmJgme0c3ZA4pH0d0Hom85Doa9ANb8iSmN6weHnBEDqBIrLN vcJ4WVkpHaTz4vRsLke6qpzGLVT+mXdAlVmg8xsm3/vSLDV8Yv9KKXYcgV0d8BrFacDg A6Kqvx9eL/t9h9Eu2ROqhK6YB8I9zhg+gfMmB8K50rEMRQBGsLBcW9+gocELEReG+2UG 8Dr83l/8FZX19X1ZLChDcYEEchO0mGrtVOUXFif/ZKkiqWKOWnJzZGZYeRzmPKk3EiqV BQow== X-Gm-Message-State: AC+VfDzLvIR+HbVL14YIeQLrTicYHbPgtyMQK1kXOgf7B1az0091mdVh a/0U5fPJNjpPjT8mleIE4gTSChN6/wM= X-Google-Smtp-Source: ACHHUZ48Ctq25/jOWo2nOrUYiTkPu+9cUUGT9KZFEWhgs36Jat11A7iC8UGGnM5T4c2tHVmOSHQ7ebLSwlw= X-Received: from yuzhao.bld.corp.google.com ([2620:15c:183:200:f582:c9e5:6c95:4461]) (user=yuzhao job=sendgmr) by 2002:a05:690c:702:b0:565:ebd4:304d with SMTP id bs2-20020a05690c070200b00565ebd4304dmr731769ywb.4.1686272385574; Thu, 08 Jun 2023 17:59:45 -0700 (PDT) Date: Thu, 8 Jun 2023 18:59:43 -0600 In-Reply-To: <20230526234435.662652-1-yuzhao@google.com> Message-Id: <20230609005943.43041-1-yuzhao@google.com> Mime-Version: 1.0 References: <20230526234435.662652-1-yuzhao@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Subject: kvm/x86: multichase benchmark From: Yu Zhao To: Andrew Morton , Paolo Bonzini Cc: Alistair Popple , Anup Patel , Ben Gardon , Borislav Petkov , Catalin Marinas , Chao Peng , Christophe Leroy , Dave Hansen , Fabiano Rosas , Gaosheng Cui , Gavin Shan , "H. Peter Anvin" , Ingo Molnar , James Morse , "Jason A. Donenfeld" , Jason Gunthorpe , Jonathan Corbet , Marc Zyngier , Masami Hiramatsu , Michael Ellerman , Michael Larabel , Mike Rapoport , Nicholas Piggin , Oliver Upton , Paul Mackerras , Peter Xu , Sean Christopherson , Steven Rostedt , Suzuki K Poulose , Thomas Gleixner , Thomas Huth , Will Deacon , Zenghui Yu , kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-trace-kernel@vger.kernel.org, x86@kernel.org, linux-mm@google.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230608_175947_077009_E66E993D X-CRM114-Status: UNSURE ( 7.08 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org TLDR ==== Multichase in 64 microVMs achieved 6% more total samples (in ~4 hours) after this patchset [1]. Hardware ======== HOST $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 43 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 128 On-line CPU(s) list: 0-127 Vendor ID: AuthenticAMD Model name: AMD Ryzen Threadripper PRO 3995WX 64-Cores CPU family: 23 Model: 49 Thread(s) per core: 2 Core(s) per socket: 64 Socket(s): 1 Stepping: 0 Frequency boost: disabled CPU max MHz: 4308.3979 CPU min MHz: 2200.0000 BogoMIPS: 5390.20 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ... Virtualization features: Virtualization: AMD-V Caches (sum of all): L1d: 2 MiB (64 instances) L1i: 2 MiB (64 instances) L2: 32 MiB (64 instances) L3: 256 MiB (16 instances) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-127 Vulnerabilities: Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Not affected Retbleed: Mitigation; untrained return thunk; SMT enabled with STIBP protection Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Retpolines, IBPB conditional, STIBP always-on, RSB filling, PBRSB-eIBRS Not affected Srbds: Not affected Tsx async abort: Not affected HOST $ numactl -H available: 1 nodes (0) node 0 cpus: 0-127 node 0 size: 257542 MB node 0 free: 224855 MB node distances: node 0 0: 10 HOST $ cat /sys/class/nvme/nvme0/model INTEL SSDPF21Q800GB HOST $ cat /sys/class/nvme/nvme0/numa_node 0 Software ======== HOST $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=22.04 DISTRIB_CODENAME=jammy DISTRIB_DESCRIPTION="Ubuntu 22.04.1 LTS" HOST $ uname -a Linux x86 6.4.0-rc5+ #1 SMP PREEMPT_DYNAMIC Wed Jun 7 22:17:47 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux HOST $ cat /proc/swaps Filename Type Size Used Priority /dev/nvme0n1p2 partition 466838356 0 -2 HOST $ cat /sys/kernel/mm/lru_gen/enabled 0x000f HOST $ cat /sys/kernel/mm/transparent_hugepage/enabled always madvise [never] HOST $ cat /sys/kernel/mm/transparent_hugepage/defrag always defer defer+madvise madvise [never] Procedure ========= HOST $ git clone https://github.com/google/multichase HOST $ HOST $ HOST $ cp multichase/multichase ./initrd/bin/ HOST $ sed -i \ "/^maybe_break top$/i multichase -t 2 -m 4g -n 28800; poweroff" \ ./initrd/init HOST $ HOST $ cat run_microvms.sh memcgs=64 run() { path=/sys/fs/cgroup/memcg$1 mkdir $path echo $BASHPID >$path/cgroup.procs qemu-system-x86_64 -M microvm,accel=kvm -cpu host -smp 2 -m 6g \ -nographic -kernel /boot/vmlinuz -initrd ./initrd.img \ -append "console=ttyS0 loglevel=0" } for ((memcg = 0; memcg < $memcgs; memcg++)); do run $memcg & done wait Results ======= Before [1] After Change ---------------------------------------------- Total samples 6824 7237 +6% Notes ===== [1] "mm: rmap: Don't flush TLB after checking PTE young for page reference" was included so that the comparison is apples to Apples. https://lore.kernel.org/r/20220706112041.3831-1-21cnbao@gmail.com/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel