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- Newsgroups: comp.sys.sun.hardware,comp.sys.sun.misc,comp.sys.sgi
- Path: sparky!uunet!mcsun!sun4nl!relay.philips.nl!philica!adrie
- From: adrie@ica.philips.nl (Adrie Koolen)
- Subject: Re: Is it Sunset yet?!?!
- Message-ID: <1993Jan8.081350.3453@ica.philips.nl>
- Organization: Philips Consumer Electronics, Eindhoven, The Netherlands
- References: <1993Jan6.203033.8638@cc.umontreal.ca> <1943@niktow.canisius.edu>
- Date: Fri, 8 Jan 1993 08:13:50 GMT
- Lines: 18
-
- In article <1943@niktow.canisius.edu> pavlov@niktow.canisius.edu (Greg Pavlov) writes:
- > SGI Indigo R4000 SUN 4/75 SPARC 2
- >
- > *Sequential disk test 1707KB/sec 602KB/sec
- > *"Random" disk test 1219KB/sec 328KB/sec
- > (*8192-byte blocks)
-
- I'll examine the result of the random disk test on the Indigo.
- Using 8KB blocks, transfering one block at 4MB/s takes some 2ms.
- The Indigo reads 1219/8 = 152 blocks per second, i.e. 6.6ms per
- block. This means that the mean access time of the disk used by
- the Indigo is some 4.6ms, where I assume zero software overhead
- of the operating system.
-
- Comments, anybody?
-
- Adrie Koolen (adrie@ica.philips.nl)
- Philips Consumer Electronics, Eindhoven, the Netherlands
-