From mboxrd@z Thu Jan 1 00:00:00 1970 From: Huub Bouma Subject: Re: Replacing the caching device (SSD) of a bcache set Date: Sun, 11 Aug 2013 12:13:23 +0200 Message-ID: <520763C3.9080605@w20e.com> References: <20130809002550.GE15409@kmo-pixel> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Josep Lladonosa Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-bcache@vger.kernel.org On 08/11/2013 11:28 AM, Josep Lladonosa wrote: > Hello, Thanks to eveybody. All working now. Just a comment. I find > that with kernel 3.11.0-rc4 hard disk writes are teeeeeerribly slow > (for example when installing a deb package, for example, a new kernel. > It runs, but very slow comparing to a system running without bcache. > Josep Hi Josep, I had the exact same issue, when running dpkg it took half an hour or so.. after chatting on IRC to Kent Overstreet I was told this was fixed, so you might need to patch the kernel with the latest changes. I haven't seen this issue since, but haven't done a lot of testing since either.. Cheers, Huub