dbench scalability testing

David Collier-Brown davecb at canada.sun.com
Thu Mar 8 21:19:11 GMT 2001

Nathan Dabney wrote:
>   The problem is, using a single kernel image (2.2.18) on the same hardware without any other system activity I can't get reliable results.

	I got some bogons too, and found I was running the 
	test disk out of space and the internal table off it's

	The disk out-of-space stuff is fixed in a pair oif 
	patchhes at http://samba.org/cgi-bin/samba-patches
	You may want 117 and **part** of 181.  181 has
	code for latency, too, but it's Solaris-specific

>   I have taken precautions to exclude caching issues from the list of possible problems, but for some reason I still can't get the results to be reliable.

	The symptoms I saw were **very** erratic performace after
	the first out-of-space error or the first overflow,
	accompanied with tons of error messages.

David Collier-Brown,           | Always do right. This will gratify 
Performance & Engineering Team | some people and astonish the rest.
Americas Customer Engineering  |                      -- Mark Twain
(905) 415-2849                 | davecb at canada.sun.com

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