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[82.17.115.212]) by smtp.gmail.com with ESMTPSA id g15-20020a5d554f000000b0022cc7c32309sm2331237wrw.115.2022.09.29.01.22.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Sep 2022 01:22:16 -0700 (PDT) Date: Thu, 29 Sep 2022 09:22:16 +0100 From: Aaron Tomlin To: Rafael Folco Cc: frederic@kernel.org, mtosatti@redhat.com, cl@linux.com, tglx@linutronix.de, mingo@kernel.org, peterz@infradead.org, pauld@redhat.com, neelx@redhat.com, oleksandr@natalenko.name, atomlin@atomlin.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v8 4/5] tick/nohz_full: Ensure quiet_vmstat() is called on exit to user-mode when the idle tick is stopped Message-ID: <20220929082216.vbkyzbxhsq2ixjdm@ava.usersys.com> X-PGP-Key: http://pgp.mit.edu/pks/lookup?search=atomlin%40redhat.com X-PGP-Fingerprint: 7906 84EB FA8A 9638 8D1E 6E9B E2DE 9658 19CC 77D6 References: <20220924152227.819815-1-atomlin@redhat.com> <20220924152227.819815-5-atomlin@redhat.com> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664439742; a=rsa-sha256; cv=none; b=3RlPHkMWHEBeSwQ+OHaPcAZsFryhIH34H9bFVPnev+QV0SZGqv22QvfElcq8c2tgh7Evbt RMTFdrwK6wFoqB95A4uqduTZmeWRiyJ0uszIUG5J6p+EfWVEsRGfX7pPxig0VuZS9QNMHC r50luNKcHQbWzyNqWOtyc5WS1ATpraY= ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=V5lwfPBE; spf=pass (imf01.hostedemail.com: domain of atomlin@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=atomlin@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664439742; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=GvL840Kk8DVZlJW6RhVLU2un7rLr7tAXkBGCR+lZrQE=; b=OwZwLp/qkfsL+39VdfVvmIxiCu58V8auho3N5D8Lbot6mtPha8pmsGCGM5jESd/8cj5OLd xYit6AIJzCLYyKMU4dJjVUMNsd855MJIpbESNukNv65/IkCdcChP+AZEoa8s7PCzhIpE/m 0nxbC9DOgfPRVpp1xFN4YjvyhcyZYhM= X-Stat-Signature: 3yocpxp1jrprckkzob89pns3wuoomw1r X-Rspamd-Queue-Id: 853BF40021 X-Rspam-User: Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=V5lwfPBE; spf=pass (imf01.hostedemail.com: domain of atomlin@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=atomlin@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-Rspamd-Server: rspam01 X-HE-Tag: 1664439742-848437 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 2022-09-27 13:17 -0300, Rafael Folco wrote: > Tested this patch w/ nohz_full setup and oslat 8h run on isolated cpus, max > latency is 7us versus 15us without the patch. > Thanks. Hi Rafael, Good news. Thanks for the feedback. May I add Tested-by: ? Kind regards, -- Aaron Tomlin