Path: utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!CORY.BERKELEY.EDU!dillon
From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga
Subject: Re: Hard Disk Performance tests, comments invited
Message-ID: <8810211804.AA13048@cory.Berkeley.EDU>
Date: 21 Oct 88 18:04:36 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 15

:My big question is: If I have 800K+ bytes/sec raw speed (great!!!), but
:this is done with I/O polling what happens with my over all system
:perfomance. If this was a single tasking PC I would be mildly extatic, but

	*IF* this is done with IO polling and you have your filesystem
priority set at 0, other programs still run fine, just slower (the polling
task uses up its full timeslice, but does not prevent other tasks from
running).

	*IF* this is done with DMA, the Amiga runs even faster while doing
the IO. 

	My HD system polls (non-DMA, foo), but my Amiga never freezes while
it's doing massive transfers.

				-Matt