From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Klaus Kusche Subject: Subsystem responsible for /proc/diskstats timings? To: linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org Message-ID: Date: Sun, 9 Sep 2018 10:03:35 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Sender: linux-ide-owner@vger.kernel.org List-ID: Hello, Which subsystem could be responsible for https://bugzilla.kernel.org/show_bug.cgi?id=200857 ("4.18 regression: /proc/diskstats: I/O busy time not updated correctly")? This is for AHCI SATA disks (/dev/sda, /dev/sdb, ...), and the busy time reported by /proc/diskstats for SSD's is still (4.18.6) to low by at least a factor of 20 (!). Many thanks in advance for your help! -- Prof. Dr. Klaus Kusche Private address: Rosenberg 41, 07546 Gera, Germany +49 365 20413058 klaus.kusche@computerix.info https://www.computerix.info Office address: DHGE Gera, Weg der Freundschaft 4, 07546 Gera, Germany +49 365 4341 306 klaus.kusche@dhge.de https://www.dhge.de