From: "Russ Cox" <rsc@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Re: [sources] 20070410: % cat
Date: Sat, 14 Apr 2007 10:51:53 -0400 [thread overview]
Message-ID: <20070414145128.A94011E8C26@holo.morphisms.net> (raw)
In-Reply-To: <9f3897940704131439t56e781a2s7b2fb3497299c31e@mail.gmail.com>
> 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
next prev parent reply other threads:[~2007-04-14 14:51 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <12a554de22f1992874430323d774bd88@plan9.bell-labs.com>
2007-04-13 6:00 ` Lucio De Re
2007-04-13 14:25 ` Devon H. O'Dell
2007-04-13 14:56 ` erik quanstrom
2007-04-13 18:22 ` Lyndon Nerenberg
2007-04-13 21:39 ` Paweł Lasek
2007-04-14 14:51 ` Russ Cox [this message]
2007-04-13 15:00 ` Lucio De Re
2007-04-12 18:41 [9fans] Re: [sources] 20070410: % cat >/sys/lib/dist/changes/1176262206.1.txt << EOF Russ Cox
2007-04-13 4:18 ` [9fans] Re: [sources] 20070410: % cat Lucio De Re
2007-04-13 4:59 ` geoff
-- strict thread matches above, loose matches on Subject: below --
2007-04-12 18:25 [9fans] Re: [sources] 20070410: % cat >/sys/lib/dist/changes/1176262206.1.txt << EOF ron minnich
2007-04-12 18:38 ` [9fans] Re: [sources] 20070410: % cat geoff
2007-04-12 18:43 ` Devon H. O'Dell
2007-04-12 16:08 [9fans] Re: [sources] 20070410: % cat >/sys/lib/dist/changes/1176262206.1.txt << EOF Devon H. O'Dell
2007-04-12 17:42 ` [9fans] Re: [sources] 20070410: % cat geoff
2007-04-12 18:00 ` Anthony Sorace
2007-04-12 18:16 ` Russ Cox
2007-04-12 18:57 ` Anthony Sorace
2007-04-13 4:04 ` Lucio De Re
2007-04-13 4:58 ` geoff
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