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 6C3512E632 for ; Mon, 16 Oct 2023 15:55:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J/Y7O9an" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9F301C433C8; Mon, 16 Oct 2023 15:55:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1697471736; bh=sHaRlwbWssWeJYQh6HQwKzauVvxDIFF0zkURvlGW/8o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=J/Y7O9anXNZ6iq65xrYIz16QXcmlXdrngD+JzDIXRVvPvUcU4SmZel5cdMQRyR3iL Ww7JDzUhDXDYhRvYGHDFgPvMtqRpC/MOT1K84EBL7rYYQFAntWCDwtUxvoZTDNCe5B mXNPtPtqLpNG6rzM3rBryJphtWEAYoL4aiCGJ1YubMdfo7Ug1rvqguypj8E2c6ymIJ dsKKtcWMiurayU/XHKIdvHnJkCpXLQWk+CiDsCJhhldvPLb9zlOi3QcnJ/FEJvaI5P 26WagFY0jgfUx177BzRQG9lojiAbILaHoTpL1f0Dw0x0snB+dKW8opuix1ucWKU7CD L32sE1hmVhRaQ== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id EB66040016; Mon, 16 Oct 2023 12:55:33 -0300 (-03) Date: Mon, 16 Oct 2023 12:55:33 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ingo Molnar , Jiri Olsa , Ian Rogers , Adrian Hunter , Peter Zijlstra , LKML , linux-perf-users@vger.kernel.org Subject: Re: [PATCH v3] perf bench sched pipe: Add -G/--cgroups option Message-ID: References: <20231016044225.1125674-1-namhyung@kernel.org> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Url: http://acmel.wordpress.com Em Mon, Oct 16, 2023 at 12:51:52PM -0300, Arnaldo Carvalho de Melo escreveu: > Now back at testing with with cgroups. Humm, even without the -G I get: [root@five ~]# perf stat -e context-switches,cgroup-switches perf bench sched pipe -l 10000 # Running 'sched/pipe' benchmark: # Executed 10000 pipe operations between two processes Total time: 0.082 [sec] 8.246400 usecs/op 121265 ops/sec Performance counter stats for 'perf bench sched pipe -l 10000': 20,002 context-switches 20,002 cgroup-switches 0.091228041 seconds time elapsed 0.007122000 seconds user 0.087700000 seconds sys [root@five ~]# - Arnaldo