From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f182.google.com (mail-yb1-f182.google.com [209.85.219.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E3696125 for ; Mon, 5 Dec 2022 17:18:40 +0000 (UTC) Received: by mail-yb1-f182.google.com with SMTP id 7so15310072ybp.13 for ; Mon, 05 Dec 2022 09:18:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=1/Nonq3ctTs1UWfb6KWW7MIlmF7kFHhRG27VQydMtVk=; b=lFSZfm4kDAFsl8Bae1pr7+oePLNotDcRIIDlIY5J8R4O0WC0aEVF0wcgS5RWNmniso txXy+BNgs9f8iTbaG5ahYH79+AdjemxKo5xKnqmnLh/vAsqi92wfqhVk6KgKrnzEu200 sK66uLMEezea15MPVJg+y47XZbPzcLTme3ywb/HGqTxWuSEGIkt1Zw7oH2FAEygSQRbY ZJXPCPxAh3Ed+nxSir+x09p8Pejz+1SKW5K92Qp6RIKYNbqwUgjD9GYeXcOLD2VcHEFG nwcHRySs2889m4rg93crVDccyBkbNyEq2BPvpkIRhEEmi6rRN7crHILQjVKnK0MvgLeM ejTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1/Nonq3ctTs1UWfb6KWW7MIlmF7kFHhRG27VQydMtVk=; b=GWP5SKu8qoSQuxnf/I7KZ/60kAWSeLV2IjvjoSqXdi2ppV6f22/xZHXIh6u/Qp0mJF 1fDlw/2/JbCT2pzApxyuy+uWraM+d29TMXCzudTT8PfrYe0+lCtBsq87CTNLfA+xuHcX SWyyvj8qG7zT5N3LFuZ2EkSf+Ti6sJC3H6Gnd1du6Qt/bKtfJhjU0upN/4EhC3/HT+z7 /5yqqSiby4cZMj/+Vqfdd0rfeSFpEaQkXwqZNkTJGAzdPbYKrOkIIK4jsT9Jl3VWDilV 4tzxO2A49rxTJh4Gz7hv1HOEFw6Su8cKfCjRJ4pJZpHJPQfky/wN7Tfuh/p5quDypPy7 WGIQ== X-Gm-Message-State: ANoB5pkrHVc05/lJnjC5mO5ATXfEA6EUXW9kWAbZWVTVWUD6togdWPK1 HXz86cFiOU7qHTP12HNi/X1V9tixbfsShRf3erBoTA== X-Google-Smtp-Source: AA0mqf4WwhfDj4SfV0gayow9/xNOHxtZYvzoJMotYVfsb0rBXTMBhrwctNTPhYy7zkevJoo6TTUBFkTVlmi+HMGTjjc= X-Received: by 2002:a5b:841:0:b0:6e5:92af:5731 with SMTP id v1-20020a5b0841000000b006e592af5731mr59525430ybq.228.1670260719051; Mon, 05 Dec 2022 09:18:39 -0800 (PST) Precedence: bulk X-Mailing-List: oe-lkp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <202212051324.182a6363-yujie.liu@intel.com> In-Reply-To: <202212051324.182a6363-yujie.liu@intel.com> From: Shakeel Butt Date: Mon, 5 Dec 2022 09:18:28 -0800 Message-ID: Subject: Re: [linux-next:master] [mm] f1a7941243: unixbench.score -5.1% regression To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Andrew Morton , Marek Szyprowski , Linux Memory Management List , linux-kernel@vger.kernel.org, ying.huang@intel.com, feng.tang@intel.com, zhengjun.xing@linux.intel.com, fengwei.yin@intel.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, Dec 4, 2022 at 9:56 PM kernel test robot wrot= e: > > Greeting, > > FYI, we noticed a -5.1% regression of unixbench.score due to commit: > [...] > 9cd6ffa60256e931 f1a7941243c102a44e8847e3b94 > ---------------- --------------------------- > %stddev %change %stddev > \ | \ > 7917 -5.1% 7509 unixbench.score What is unixbench.score? > 10485 -12.1% 9216 unixbench.time.maximum_resi= dent_set_size > 37236706 -5.1% 35324104 unixbench.time.minor_page_f= aults For above two, is negative change good or bad? > 0.98 =C4=85 20% +0.7 1.64 =C4=85 38% perf-profile.call= trace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x6= 4_sys_openat > 2.12 =C4=85 19% +0.8 2.96 =C4=85 13% perf-profile.call= trace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_p= age_fault > 2.35 =C4=85 13% +0.9 3.28 =C4=85 13% perf-profile.call= trace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_pa= ge_fault.asm_exc_page_fault > 0.14 =C4=85 74% +0.4 0.55 =C4=85 32% perf-profile.chil= dren.cycles-pp.do_task_dead > 0.04 =C4=85223% +0.4 0.47 =C4=85 49% perf-profile.chil= dren.cycles-pp.__mmdrop Also how should I interpret the above perf-profiles?