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- Newsgroups: comp.sys.amiga.programmer,comp.sys.amiga.hardware
- Path: news-1.csn.net!ub!dsinc!scala!scott
- From: scott@scala.scala.com ("Scott Drysdale")
- Subject: Re: Blizzard 1230IV how good ?
- Message-ID: <1996Feb26.071134.3049@scala.scala.com>
- Date: Mon, 26 Feb 1996 07:11:34 GMT
- References: <42116493@phoenix.owl.de> <1219.6615T886T2318@Redrobe.demon.co.uk> <38232436@kone.fipnet.fi>
- Organization: US Research and Development - Scala Inc.
-
- In article <38232436@kone.fipnet.fi> "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi> writes:
- >
- >> ╗ Memory Speed Test ½
- >> Copyright 1996 by Frank Wille.
- >>
- >> Type read write
- >> Chip Ram 3742 kB/s 5747 kB/s
- >> Fast Ram 11908 kB/s 15843 kB/s
- >> -------
- >>
- >> This is in a 32col dblpal 720x520 screen (wb)
- >>
- >> I can get chip r/w 4349/6890 kB/s on a 2 colour screen :9
- >> ^^^^
- >> so thats approaching 7Mb/sec
- >>
- >> anybody care to explain why writes are faster than reads?
- >
- >Hmm. At least a programmer can insert free instruction
- >after a CHIP-write but not after a CHIP-read. Dont know..
- >Maybe some HW expert has an explanation?
-
- writes are probably faster than reads on certain hard drives because the
- drive can accept the data for the write but do the actual writing later.
- ie, the write doesn't have to wait for the heads to move and the disk to
- spin to the proper sector.
-
- --
- Scott Drysdale // Scala Inc. // scott@scala.com // 1960 HD FLH // AMIGA!
- Sanitation Engineer // "where you gonna go when your 8520's blow?"
-