From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Re: [sources] 20070410: % cat
From: "Russ Cox" <rsc@swtch.com>
Date: Sat, 14 Apr 2007 10:51:53 -0400
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> That's also thanks to improved filesystems. 

This isn't true.

The savings are due to aggressive caching in the
operating system, which cuts the file system out
entirely.  The disks are slow no matter how you 
use them.

File I/O for things like Python and TeX is slower
on Plan 9 because it has to go to the file server,
which is in another process or another machine,
rather than answer out of a kernel cache like Linux
does. 

Lots of things get easier if you assume you are the
only machine in the universe.  See earlier discussion
on caching read EODs.

Russ