Subject: Sync vs. Async file system
To: None <current-users@NetBSD.ORG>
From: Per Fogelstrom <pefo@enea.se>
List: current-users
Date: 09/30/1995 16:26:09
Hi!

There was some talk about filesystem speed some time ago.
I ran a benchmark that was posted to the net a while ago to
see what the difference between async and sync mounting was.

The test creates writes and deletes a number of files with
different size.

This was the result:

			create	delete
Type	Size	N	/sec	/sec
--------------------------------------
Sync	0k	500	84	2778
	1k	500	48	90
	4k	500	45	90
	10k	500	32	90

Async	0k	500	34	90
	1k	500	26	35
	4k	500	26	35
	10k	500	20	29

I'm not making any conclusions, this is only an observation.

Per