From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from kria.lutoma.org ([176.9.249.87]:52173 "EHLO kria.lutoma.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753582Ab3GTWVw (ORCPT ); Sat, 20 Jul 2013 18:21:52 -0400 Message-ID: <51EB0BD2.1050700@lutoma.org> Date: Sun, 21 Jul 2013 00:14:42 +0200 From: Lukas Martini MIME-Version: 1.0 To: Jason Russell CC: linux-btrfs@vger.kernel.org Subject: Re: Lots of harddrive chatter on after booting with btrfs on root (slow boot) References: In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="----enig2BTEAUSAIIQDHITRCFRTR" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2BTEAUSAIIQDHITRCFRTR Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hey, I wouldn't neccessarily say this is a btrfs specific problem. I'm experiencing the same issues in a very similar setup (Also using Arch Linux, booting to multi-user.target with systemd and starting X manually, also using the i3 window manager) and I'm using ext4 for the root partition. Best, Lukas On 07/20/2013 05:15 PM, Jason Russell wrote: > Hi, >=20 > I've been using btrfs for my root partition for about a month on > archlinux and recently Ive started using the i3 window manager and > starting X manually and I now boot to run level 3 (multi-user.target > for systemd) and Ive noticed that booting archlinux on a btrfs root, > there is a lot off hdd chatter after the login prompts are displayed, > which doesnt happen with ext4 on root, so I have done some testing and > comparisons. >=20 > I have stripped down two arch installs, one with btrfs root and one > with ext4, (same laptop, same hdd) I removed all packages except for > the base group. On the btrfs root, there is about +- 15 seconds of hdd > chatter and it takes a long time to log in from the prompts, with the > ext4 root, the computer is silent after the prompts pop up and login > is almost instant. The prompts of the two installs pop up at more or > less the same time (+- 3 seconds) but the login on the btrfs root > takes muuch longer than the ext4. >=20 > Ive also noted that this excessive hdd chatter does not occur > immediately after a fresh format with arch on btrfs root. >=20 > Ive made some deductions/assumptions: > This only seems to occur with btrfs roots. > This only happens after some number of reboots OR after the partition > fills up a little bit. > Im pretty sure of ruled out everything except for the filesystem. >=20 >=20 > I have just done two clean installs to more thoroughly compare ext4 > and btrfs roots. So far no excessive hdd chatter from btrfs. >=20 > I have also seen what I have described on two other computers > (different hardware entirely) where there is lots of hdd chatter from > btrfs root, and nothing from ext4. >=20 > Here are two threads: > https://bbs.archlinux.org/viewtopic.php?pid=3D1117932 > https://bbs.archlinux.org/viewtopic.php?pid=3D1301684 >=20 > Any ideas? >=20 > Thanks, >=20 > -- > Jason Russell > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 ------enig2BTEAUSAIIQDHITRCFRTR Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJR6wvXAAoJEPgooMjJ4b0sEbwIAIlxOnnxTmDG0brhTosLmFwT OUenv5loyaLLlvIfo9+OmU1BlsRCYWZkNbLawgEqH9iHOdwOtIF69EW7d1nx8MbN OZEhDjFQo0ke8bzYQMZkkmDRQmsxxMrsXdozhToJci3wXLw2CbhVle4xvFHPFcqR tGsPeW9AVoxzXVMcmN0rIJNlyaAPxpSd9ubcgP8eRGqgLFb2zoJh08uoDuD6smOU OVG2xaUvEZNV2+HjnrdUze4xc1ncwfjYON2gSaHTeRn8urfFQQQLvisCIWc3cJGl rxLX/fIqpQLZMHwe4D57XJ/RG7mti45fdIHdqwFrOWrTWBgSy7Q69+rv6tA3OWE= =UKd1 -----END PGP SIGNATURE----- ------enig2BTEAUSAIIQDHITRCFRTR--