[comp.misc] 386 Performance

jfh@killer.UUCP (John Haugh) (01/21/88)

In article <12242@orchid.waterloo.edu>, egisin@orchid.waterloo.edu (Eric Gisin) writes:
> In article <2930@killer.UUCP>, jfh@killer.UUCP (The Beach Bum) writes:
> > Let's not confuse the hardware with the software.  I have a '386 at home
> > running Xenix at this very moment.
> [...]
> > They really are fast.  In huge model it benchmarks the same as my 5 year
> > old 6MHz 68000 box.  With one wait state memory.
> 
> I didn't know the 386 was *that* slow.

I benchmarked both machines with the Dhrystone benchmark.  The 68K box
doesn't have `Models', so I just did optimized vs. non.  The 386 has
all kinds of variations on a theme.

The notable ones were:
	386, small model (only one you get), the works, 5900 Dhry
	286, huge model, no registers, unoptimized, about 500 (I think)
	68K, no registers, unoptimized, about 300. (Once again, ?)
	68K, optimized, about 450. (?)
	68020, Greenhill's, the works, 4100 Dhry.

Needless to say, I will not being doing any 286 huge model programming.
This does point out the problems with benchmarks.  Ain't no way my P/95
is slower than the 386.

- John.
-- 
John F. Haugh II                  SNAIL:  HECI Exploration Co. Inc.
UUCP: ...!ihnp4!killer!jfh                11910 Greenville Ave, Suite 600
"Don't Have an Oil Well? ...              Dallas, TX. 75243
 ... Then Buy One!"                       (214) 231-0993 Ext 260

steve@raspail.UUCP (Steve Schonberger) (01/24/88)

>	[...]
>
> Ain't no way my P/95 is slower than the 386.
>
> - John.
> -- 
> John F. Haugh II                  SNAIL:  HECI Exploration Co. Inc.
> UUCP: ...!ihnp4!killer!jfh                11910 Greenville Ave, Suite 600
> "Don't Have an Oil Well? ...              Dallas, TX. 75243
>  ... Then Buy One!"                       (214) 231-0993 Ext 260


How true.  I got a change to play on a P/95 at a seminar I took this month,
and it was amazingly fast.  About the only thing I have ever been on that is
comparable is the IBM 3081 I used in school, at least in I/O speed, and to
the degree I could tell.  I imagine the IBM was in truth faster, but since
the P/95 only had maybe 30 users on it and the 3081 had more like 150, the
P/95 did a lot better in response time.  It sure ran rings around the VAXs
I used in school.