From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [PATCH RESEND] st implement tape statistics v3 Date: Tue, 10 Feb 2015 07:03:39 +0800 Message-ID: <20150209230339.GA14070@kroah.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56288 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752393AbbBIXDo (ORCPT ); Mon, 9 Feb 2015 18:03:44 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Seymour, Shane M" Cc: "linux-scsi@vger.kernel.org" , "Laurence Oberman (loberman@redhat.com)" , "Kai.Makisara@kolumbus.fi" , "James E.J. Bottomley (JBottomley@parallels.com)" Comment about your subject: the "v3" needs to go inside the [] And you need to put below the --- line what has changed from the last version, I don't see any of my comments address here :( On Mon, Feb 09, 2015 at 10:41:38PM +0000, Seymour, Shane M wrote: > The following patch exposes statistics for the st driver via sysfs. There is a need for companies with large numbers of tape drives numbering in the tens of thousands to track the performance of those tape drives (e.g. when a backup exceeds its window). The statistics provided should allow the calculation of throughput, average block sizes for read and write, and time spent waiting for I/O to complete or doing tape movement. Your keyboard has an "Enter" key, please use it around the 72nd column :) thanks, greg k-h