At 8:05 AM -0700 1999/9/17, Thomas Dean wrote:

> These tests with softupdates do not appear to be a test of the disk
> i/o system, but, a test of memory.
>
> Are the files deleted before they are actually written to disk?

        Good question.  I don't know the answer.  I know that the process 
is to create all the files first, then operate on them (including 
deletions and more creations), and then finally do a removal of all 
of them as quickly as possible at the end of the test.

        I'd be willing to guess a lot of files do get created and then 
deleted before the data ever gets written to disk.  After all, 
postmark was written to simulate the kind of a load that a 
heavily-used mail system places on the machine, and that's precisely 
the sort of environment where something like softupdates or mounting 
filesystems async does tend to help the most.

-- 
   These are my opinions -- not to be taken as official Skynet policy
  ____________________________________________________________________
|o| Brad Knowles, <[EMAIL PROTECTED]>            Belgacom Skynet NV/SA |o|
|o| Systems Architect, News & FTP Admin      Rue Col. Bourg, 124   |o|
|o| Phone/Fax: +32-2-706.11.11/12.49         B-1140 Brussels       |o|
|o| http://www.skynet.be                     Belgium               |o|
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  Unix is like a wigwam -- no Gates, no Windows, and an Apache inside.
   Unix is very user-friendly.  It's just picky who its friends are.


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