From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Samuel Subject: Re: TRIM support Date: Sun, 10 Jul 2011 18:33:28 +1000 Message-ID: <201107101833.31450.chris@csamuel.org> References: <1309635918.3774.7.camel@nayuki> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2977095.WJ55d2GMuM"; protocol="application/pgp-signature"; micalg=pgp-sha1 To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <1309635918.3774.7.camel@nayuki> List-ID: --nextPart2977095.WJ55d2GMuM Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Sun, 3 Jul 2011 05:45:17 AM Calvin Walton wrote: > The discard option is not currently automatically enabled; I think > there may have been some performance issues in certain cases with > drives that have slow trim implementations. But feel free to give > it a try. This LWN article from 2009 explains why it can be problematic (especially on SATA drives where TRIM is a non-queued command): https://lwn.net/Articles/347511/ cheers, Chris =2D-=20 Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC This email may come with a PGP signature as a file. Do not panic. =46or more info see: http://en.wikipedia.org/wiki/OpenPGP --nextPart2977095.WJ55d2GMuM Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUAThlj2I1yjaOTJg85AQIScgf/TwFoMKdvq2QU1rr9ZyP99vJH6VmQWVhz JO/pvz7Qzd7JV55vxhJwoWNmqDREEvtWD2VPJ/SmS/KG2S1izH1tyGsJJBHA13mf XORooJa+1SwT4C39etIP9kjrZLaukB+g1xh2fEUf5ISohLPiOcTHrW94bG3hd07X 3tbLGQNALkqy5ED7wA5zVnV1pQbLgMfacbTO4u5HV/+KVo5YQKyarHr8oVfsIZLG ODvZ4m3BRtTFVPPRRIjlzsKRMwSK85s8v8nRLPVIfHXG0ePYkS5uaW216CuKkzZA AYRCaGnTYl1FurSgjFRVAPt+2X6Zi1jMnmRtdkjPb7jUndjv/l33tg== =TOB3 -----END PGP SIGNATURE----- --nextPart2977095.WJ55d2GMuM--