From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 E0C8D1FAC29 for ; Wed, 4 Jun 2025 19:23:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749065012; cv=none; b=QneYIKRvgyBZETAhSWoiyumuW1+NxgW8Llr5OKOKbpcYV637ZzyVl/2/DmDmvF6Nlf4EUeH7FQjFv6Lwwy3ylvOLxzFaT3FTq6uA3w+gi3RLph4nO9BDP/wonsDWfaqtZvml2UKHTAedMoX99s76s9B1iILwUmyaprxpdGbmw+4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749065012; c=relaxed/simple; bh=VlJRoxCZ2RUdcfbxG/mzbEwoNt2y+5D8TQn4Ki03Wp4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZFT7zBjJ32it/Kgqu5np1P6IuOE/jWUcPXEClYXagK6r1yp2Oy2GoTteqt7IW3FV+ygabu9k4mvezFOmMw1lH01c3+gupjMvcFekvz8iwLqnI63c5J7hw45VqcQOuZVBj5jQb9PQpOCrEeKBfmhNqqkk88SCzu36B7gtYrjI0H8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=T2MOgSPa; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=fDo21Itx; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="T2MOgSPa"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="fDo21Itx" Date: Wed, 4 Jun 2025 21:23:27 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1749065009; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VlJRoxCZ2RUdcfbxG/mzbEwoNt2y+5D8TQn4Ki03Wp4=; b=T2MOgSPak84Lhcva61WZnrlTZtEILLivhiyakZSSfcujsY3j4oIJmPGCnF+6OkVE42D0kJ RA+9kD/WPTpFUpqJLXYW10pCWhpqjtB/0gyDVgAi8FmnAyD+3nJ49OgPze3FaEqPXloTqF u8U8Bb/fD+TY27e56AZbHevrpuPBcFtz9tTNhzJVTR0J9uFDrcAUQNnFOw0HZltTkk3uF3 eF944bioaw5gR8jurU9nlDxAOJ86G6yTxKmEUF9EYCXAubyBZuwrizXQvfTc6s+VuiLEPS KpVJicx/ps/LjQdVO67LdxK87GfMEt/+UESPerLtEu2/xxGuJ7LU4nNJczQW/A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1749065009; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VlJRoxCZ2RUdcfbxG/mzbEwoNt2y+5D8TQn4Ki03Wp4=; b=fDo21Itxih51zSQBIPjf1BSokfnrD7fTray57+g1mLGli1TMxEeDYkYggFPC02sFBMN+F1 eRf1bxLJ8BCeLhBQ== From: Sebastian Andrzej Siewior To: Prakash Sangappa Cc: Steven Rostedt , "linux-kernel@vger.kernel.org" , "peterz@infradead.org" , "mathieu.desnoyers@efficios.com" , "tglx@linutronix.de" , "kprateek.nayak@amd.com" , "vineethr@linux.ibm.com" Subject: Re: [PATCH V5 1/6] Sched: Scheduler time slice extension Message-ID: <20250604192327.sVjt6c4u@linutronix.de> References: <20250603233654.1838967-1-prakash.sangappa@oracle.com> <20250603233654.1838967-2-prakash.sangappa@oracle.com> <20250604103106.1465f847@gandalf.local.home> <20250604145433.KCPMF8zm@linutronix.de> <80120491-7F90-4171-9FB8-9FE89B09F728@oracle.com> 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-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <80120491-7F90-4171-9FB8-9FE89B09F728@oracle.com> On 2025-06-04 17:29:44 [+0000], Prakash Sangappa wrote: > Don=E2=80=99t know if there were benefits mentioned when RT tasks are inv= olved. >=20 > I had shared some benchmark results in this thread showing benefit of usi= ng scheduler time extension. > https://lore.kernel.org/all/20241113000126.967713-1-prakash.sangappa@orac= le.com/ > The workload did not include RT tasks. I don't question the mechanism/ approach. I just don't want RT tasks delayed. > -Prakash Sebastian