From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from postfix.iai.uni-bonn.de ([131.220.8.4]:36066 "EHLO postfix.iai.uni-bonn.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750869AbeAUWeD (ORCPT ); Sun, 21 Jan 2018 17:34:03 -0500 Subject: Re: Periodic frame losses when recording to btrfs volume with OBS To: Chris Murphy , linux-btrfs@vger.kernel.org References: <35acc308-d68d-3a4b-a626-38b9a7820fd4@gmx.com> From: Sebastian Ochmann Message-ID: <5e705af4-2bd7-6e3e-2179-a957a81275fc@cs.uni-bonn.de> Date: Sun, 21 Jan 2018 23:33:59 +0100 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 21.01.2018 23:04, Chris Murphy wrote: > On Sun, Jan 21, 2018 at 8:27 AM, Sebastian Ochmann > wrote: >> On 21.01.2018 11:04, Qu Wenruo wrote: > >> The output of "mount" after setting 10 seconds commit interval: >> >> /dev/sdc1 on /mnt/rec type btrfs >> (rw,relatime,space_cache,commit=10,subvolid=5,subvol=/) > > I wonder if it gets stuck updating v1 space cache. Instead of trying > v2, you could try nospace_cache mount option and see if there's a > change in behavior. I tried disabling space_cache, also on a newly formatted volume when first mounting it. However, it doesn't seem to make a difference. Basically the same lags in the same interval, sorry. Best regards Sebastian