home *** CD-ROM | disk | FTP | other *** search
- Path: comma.rhein.de!serpens!not-for-mail
- From: mlelstv@serpens.rhein.de (Michael van Elst)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: One hardware-basher's manifesto
- Date: 24 Feb 1996 10:24:25 +0100
- Organization: dis-
- Message-ID: <4gmlg9$jo3@serpens.rhein.de>
- References: <04000205714080640503@BIRDLAND> <4ge8na$vhe@ar.ar.com.au> <38232623@kone.fipnet.fi>
- NNTP-Posting-Host: serpens.rhein.de
-
- "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi> writes:
-
- >> Is it not true that data burst mode will slow you down if you are
- >> "randomly" accessing memory? I've heard that it will, although I have not
- >> experimented with it. Logic seems to dictate that it could.
-
- >It depends on the memory system,
-
- .. and the CPU. A 040 does always use bursts for cachable data, the only
- way to turn bursts off is to disable the cache and _that's_ slowing down
- everything significantly. Disabling bursts almost never helps.
- The 030 can use its caches even without bursting. There the advantages
- and disadvantages depend on the probabilities for cycles wasted by bursts
- and that's a function of the memory system.
-
- Regards,
- --
- Michael van Elst
-
- Internet: mlelstv@serpens.rhein.de
- "A potential Snark may lurk in every tree."
-