Re: [ANNOUNCE] Ramback: faster than a speeding bullet
From: david
Date: Thu Mar 13 2008 - 02:30:43 EST
On Wed, 12 Mar 2008, Daniel Phillips wrote:
On Wednesday 12 March 2008 22:45, David Newall wrote:
Your idea seems predicated on throwing large amounts of RAM at the
problem. What I want to know is this: Is it really 25 times faster than
ext3 with an equally huge buffer cache?
Yes.
this I don't understand. what makes your approach 25x faster?
looking at the comparison of a 500G filesystem with 500G of ram allocated
for a buffer cache.
yes, initially it will be a bit slower (until the files get into the
buffer cache), and if fsync is disabled all writes will go to the buffer
cache (until writeout hits)
I may be able to see room for a few percent difference, but not 2x, let
alone 25x.
David Lang
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