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 82E422101BC; Thu, 7 Nov 2024 18:39:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731004794; cv=none; b=qIvLRlFuabJNihavoTauaRofMXZvx0YdLktxsPtSdy4CMgs5dtQpJjJ27wLsMdhYJkZ0GP3mbXCLeQ6J4fxtiRYA1xb8vNGZuqjSXHsJcXWuinWvE3BfjHINS5nNN79k4SDN48uQyCRu0R133is1w+9IUkHLJKsxrU0Y9/s+14s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731004794; c=relaxed/simple; bh=Wz5EzWRmbP96dtKYFiUnMd4mqH4d3pyYsGGFXySZ7DQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=Qk07RkDLuPMRGnMhalUoBkAiCwPSBP+oLsM6h+oYBbZ+5EIoG+I6jIEzIVWlZK8qe03rpS3x+9ZSZNuOhGLJFEqUaluhmU0+dHjmoDSEy9GYU9dnHzNdsSPcBbdnphknYacxq3ZVUwp/9X/VcaGpUbze6iwnWecnQipqXfX2CL4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id AB5FCC4CECC; Thu, 7 Nov 2024 18:39:52 +0000 (UTC) From: Catalin Marinas To: Will Deacon , Shuah Khan , Mark Brown Cc: Mark Rutland , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 0/2] kselftest/arm64: fp-stress signal delivery interval improvements Date: Thu, 7 Nov 2024 18:39:50 +0000 Message-Id: <173100478595.985049.4978407619921174171.b4-ty@arm.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241030-arm64-fp-stress-interval-v2-0-bd3cef48c22c@kernel.org> References: <20241030-arm64-fp-stress-interval-v2-0-bd3cef48c22c@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit On Wed, 30 Oct 2024 00:02:01 +0000, Mark Brown wrote: > One of the things that fp-stress does to stress the floating point > context switching is send signals to the test threads it spawns. > Currently we do this once per second but as suggested by Mark Rutland if > we increase this we can improve the chances of triggering any issues > with context switching the signal handling code. Do a quick change to > increase the rate of signal delivery, trying to avoid excessive impact > on emulated platforms, and a further change to mitigate the impact that > this creates during startup. > > [...] Applied to arm64 (for-next/kselftest), thanks! [1/2] kselftest/arm64: Increase frequency of signal delivery in fp-stress https://git.kernel.org/arm64/c/a3590d71a1ac [2/2] kselftest/arm64: Poll less often while waiting for fp-stress children https://git.kernel.org/arm64/c/161e9925053c -- Catalin