two questions about the 3b1
harold.e.bamford
bamford at cbnewsd.att.com
Fri Aug 17 01:21:59 AEST 1990
In article <24776 at boulder.Colorado.EDU> andersom at tramp.Colorado.EDU (ANDERSON MARC O) writes:
> [...] Anyway, would it be true to say that "getting
>a faster hard drive would increase the speed on my unix system" since most
>of unix is hard drive access rather than processing time? [...]
I used to have a 7300 with the stock 20MB hard disk with 80 ms
access time. I upgraded to a 67 MB (formatted) with 28 ms and
noted that EVERYTHING was faster.
1) ksh used to take about 5 seconds for 2nd instances (ie,
not the first invocation of ksh) and after the upgrade,
they were practically instantaneous. First instances
were still slow, but I didn't care since I eventually
linked /bin/ksh to /bin/sh and logging in invoked the
first instance. Yes, with both old and new disks I had
done a "chmod +t /bin/ksh"
2) large compilations (C) and troff jobs took about 1/3 of
the original time. Suspiciously close to the ratio of
new vs. old access times.
3) large nroff jobs ran about twice as fast.
I was amazed (and pleased).
-- Harold
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