From: Cory Coager <ccoager-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Kent Overstreet
<kent.overstreet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: support for physical ramdisk
Date: Wed, 19 Jan 2011 19:59:55 -0500 [thread overview]
Message-ID: <4D37890B.3060808@gmail.com> (raw)
In-Reply-To: <AANLkTik30_V_bWGsvoUQw-5-W7URK1tSTDSfcTa8LayX-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
I was hoping to enable write back with the use of a battery backed
ramdisk. I'm simply substituting the SSD for a physical ramdisk. The
ramdisk would outperform the SSD and would probably be safer during
power loss than a SSD (assuming the battery is in good condition).
On 01/19/2011 07:22 PM, Kent Overstreet wrote:
> It'd function, but performance would be worse than just using the
> pagecache, bcache does a whole lot of extra work to get around the
> limitations of SSDs and the pagecache is blazing fast. Why would you
> want to do that?
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next prev parent reply other threads:[~2011-01-20 0:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-20 0:10 support for physical ramdisk Cory Coager
[not found] ` <4D377D66.5020609-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-20 0:22 ` Kent Overstreet
[not found] ` <AANLkTik30_V_bWGsvoUQw-5-W7URK1tSTDSfcTa8LayX-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-01-20 0:59 ` Cory Coager [this message]
[not found] ` <AANLkTinUD1_z3iZ3VgJFh=JkF+6EWDq62==Z9EhBpwBP@mail.gmail.com>
[not found] ` <AANLkTinUD1_z3iZ3VgJFh=JkF+6EWDq62==Z9EhBpwBP-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-01-20 1:14 ` Cory Coager
[not found] ` <4D378C5E.7050309-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-20 1:27 ` Kent Overstreet
[not found] ` <AANLkTin+xKeYbxSU6u=h8bfujSpm3fxqurC0nR4+89wX-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-01-20 3:34 ` Cory Coager
[not found] ` <4D37AD2D.6070108-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-20 3:52 ` Kent Overstreet
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