From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from asuka.romanrm.net ([128.199.93.76]:40617 "EHLO asuka.romanrm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750755AbbDPEyk (ORCPT ); Thu, 16 Apr 2015 00:54:40 -0400 Date: Thu, 16 Apr 2015 09:54:40 +0500 From: Roman Mamedov To: Matt Grant Cc: linux-btrfs@vger.kernel.org Subject: Re: Btrfs-cleaner FS DoS issues Message-ID: <20150416095440.4da97eae@natsu> In-Reply-To: <20150416014135.6FB5841C60@mx.anathoth.net> References: <20150416014135.6FB5841C60@mx.anathoth.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/GWF=UD5kCSyuPGzol.eM3Hf"; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --Sig_/GWF=UD5kCSyuPGzol.eM3Hf Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 16 Apr 2015 13:41:21 +1200 Matt Grant wrote: > Hi! >=20 > When ever I delete a large snapshot this stalls all the processes on my s= ystem for 30 minutes plus, kernel v19.2. Btrfs-cleaner is taking 100% CPU w= hen completely stalled. Every few minutes its say 99.8% and satall abates a= nd=C2=A0 processes/io happen. By any chance do you use this on SSD with TRIM enabled? --=20 With respect, Roman --Sig_/GWF=UD5kCSyuPGzol.eM3Hf Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlUvQJEACgkQTLKSvz+PZwiPNACcChfuCFJpLU70g02wCh4eOzau 3loAn0iB90A0AJ4WqZVoPqPOUN8TldxC =GPXc -----END PGP SIGNATURE----- --Sig_/GWF=UD5kCSyuPGzol.eM3Hf--