From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 0C58C374A16; Wed, 2 Sep 2026 11:28:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788348495; cv=none; b=NmcipR1v9lFiPj1ulo7ac8/6svx2QqYGvYt8l0MvDVvB/lgCrCLHLnoIyKEapba3IyvP9AtLNk0EGUHoeQHPWcGy99/NK0YjLvcgK7lHEfiVQDPpqLP72G59FD6EXtfVOhKZAP6ucIczgs+SwpyogJObuzuSxVcyhFyCUjDJYKs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788348495; c=relaxed/simple; bh=OQzpxFybii+XcyHWqbOSTw1HsAgi7t6DYqqzMkyEkcE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=AqwTQwazJ/tCdCdjcoZm/BCmomgzWNnH01GmdENuKKbBhJSwclwjkjQWYoLljNC6LTJA5SrxviG7qOm0aPAmEX60rjfojz5zXf4SOg1LgWzoqRCQDrZhKyJqvK9S9tkV20WFk4G7pciN7rV/k7rcua0mZUW3Z7XxwGEMR1Ekt+w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id F39A46732A; Wed, 2 Sep 2026 13:28:07 +0200 (CEST) Date: Wed, 2 Sep 2026 13:28:07 +0200 From: Christoph Hellwig To: John Garry Cc: James.Bottomley@HansenPartnership.com, mkp@kernel.org, linux-scsi@vger.kernel.org, djwong@kernel.org, hch@lst.de, fstests@vger.kernel.org, bvanassche@acm.org Subject: Re: [PATCH] scsi: scsi_debug: default to a higher throughput config Message-ID: <20260902112807.GA12271@lst.de> References: <20260902092844.1741533-1-john.garry@linux.dev> Precedence: bulk X-Mailing-List: linux-scsi@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: <20260902092844.1741533-1-john.garry@linux.dev> User-Agent: Mutt/1.5.17 (2007-11-01) On Wed, Sep 02, 2026 at 10:28:44AM +0100, John Garry wrote: > Currently the default config goes not give as high a throughput as some > would like. > > Give a higher default throughput by modifying the following: > - set completion response delay as 0 > - increase shost can_queue to 4096, which aligns better with modern > high-speed HBAs > - turn on clustering Looks good: Reviewed-by: Christoph Hellwig