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Article #1013Re: Is it possible to actually get a 16 MB/sec data transfer rate w/ an EIDE drive?
From: Michael Wong
Date: Thu, 18 Dec 1997 00:00
Date: Thu, 18 Dec 1997 00:00
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3133 bytes
>Nice try attempting to change the subject. You seem to spend a lot of time >trying to say what I've said or think and most of what you attribute to me >is totally false. I notice how you make no attempt whatsoever to address my specific points here, preferring to simply dismiss my entire post as a single block with your pithy statement above. Interesting tactic. >Depending on the drive model, the track one speed holds from between >15%-33% of the drive's capacity. All it takes for a workstation's hard >drive performance to be transfer rate dominated is that the average >read/write be somewhere around 150K. What do you think the read/write >ratio is on an average workstation usage excluding the swap file? #1) Where do you get your evidence that the track-one speed is rock-solid for the first 15% to 33% of the drive's capacity? Does it suddenly drop down for the next 33%, and then suddenly drop down again for the last 33%? #2) All it takes is that the average read/write is arond 150K? Prove this. Suppose I read twelve 150K blocks simultaneously. Will that be transfer rate dominated? And what's this nonsense about excluding the swap file? Do I get to exclude the swap file when I run a huge compile? Do I get to exclude the swap file when I'm crunching toolpaths? Tell me, when somebody wants to run two simultaneous simulation operations on his dual-CPU workstation, where do you find the "no simultaneous I/O operation" button, and the "don't touch swapfile" button? I would love to know, since you seem to have found both of those buttons for YOUR theoretical workstations. Oh wait- I forgot, none of your theories are based on real-world experience.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1036bc,aad589958d8c66fd X-Google-Attributes: gid1036bc,public X-Google-Thread: f4d7c,aad589958d8c66fd X-Google-Attributes: gidf4d7c,public X-Google-Thread: 109e38,aad589958d8c66fd X-Google-Attributes: gid109e38,public X-Google-Thread: 1045b9,aad589958d8c66fd X-Google-Attributes: gid1045b9,public X-Google-Thread: f5f89,aad589958d8c66fd X-Google-Attributes: gidf5f89,public From: nospam_mikwon@ebtech.net (Michael Wong) Subject: Re: Is it possible to actually get a 16 MB/sec data transfer rate w/ an EIDE drive? Date: 1997/12/18 Message-ID: <3498a3df.3709664@news.ebtech.net> X-Deja-AN: 299246161 References: <65l4hv$1hv@bgtnsc03.worldnet.att.net> <01bcfd55$9845f3e0$900189ca@jake> <3481bb21.0@bingnews.binghamton.edu> <34824337.CAA79322@prodigy.net> <66171n$ltq@bgtnsc03.worldnet.att.net> <34899966.B65AB640@pobox.com> <3489f02a.0@bingnews.binghamton.edu> <66dmjf$oj3@mtinsc02.worldnet.att.net> <348f680a.259410342@news.ebtech.net> <66thb3$e4d@mtinsc04.worldnet.att.net> <34933e67.166479364@news.ebtech.net> <6707b7$62g@bgtnsc01.worldnet.att.net> <3494a016.65616251@news.ebtech.net> <672e1v$n20@bgtnsc01.worldnet.att.net> Organization: Electro-Byte Technologies "Sarnia's Internet Provider" Newsgroups: comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc.hardware.chips,demon.tech.pc,alt.comp.hardware