From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kara Subject: [PATCH 0/3] ext4: Avoid transaction stalls during writeback Date: Tue, 11 Apr 2017 15:54:15 +0200 Message-ID: <20170411135418.9638-1-jack@suse.cz> Cc: , Jan Kara To: Ted Tso Return-path: Received: from mx2.suse.de ([195.135.220.15]:47930 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752410AbdDKNy0 (ORCPT ); Tue, 11 Apr 2017 09:54:26 -0400 Sender: linux-ext4-owner@vger.kernel.org List-ID: Hello, this series fixes stalls I've observed during a workload simulating Postgress database. The series reduces transaction commit times about 100x in my test setup. See patch 3/3 for more details about the workload and the results. The series has passed testing with xfstests with 4k and 1k blocksize and a test with 4k blocksize in dioreadnolock mode. Honza