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- id m0ue1tQ-0007uda; Wed, 10 Jul 96 10:13 MDT
- Sender: owner-executor
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- From: Clifford T. Matthews <ctm@ardi.com>
- Newsgroups: comp.emulators.mac.executor
- Subject: Re: Matt, anybody... E/L vs E/D?
- Date: 10 Jul 1996 09:19:36 -0600
- Organization: ARDI
- Lines: 83
- Message-ID: <ufk9wc3zlj.fsf@ftp.ardi.com>
- References: <Pine.HPP.3.91.960710223755.28583C-100000@helios.usq.edu.au>
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- In-reply-to: Michelle Pankowski's message of Wed, 10 Jul 1996 22:52:37 +1000
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-
- >>>>> "Michelle" == Michelle Pankowski <d9060469@helios.usq.edu.au> writes:
- In article <Pine.HPP.3.91.960710223755.28583C-100000@helios.usq.edu.au> Michelle Pankowski <d9060469@helios.usq.edu.au> writes:
-
-
- Michelle> Here are my Executor 2 speedo test results under linux
- Michelle> 2.0 and Windows95. (on a 486dx2-50 with a slooo...w hard
- Michelle> drive)
-
- Michelle> Windows95 linux-svga linux X
- Michelle> video 7.6 4.6 2.7
- Michelle> cpu 8.8 7.9 7.9
- Michelle> disk 2.2 2.0 2.0
-
- Michelle> My question is this;
-
- Michelle> Linux 2.0 is linux at its finest, all 32 bit and really
- Michelle> fast drivers, (tested with the fastest X server
- Michelle> available too). Windows95 is all 16 bit with a .hfv
- Michelle> volume to slow thing down as well...
-
- Michelle> So why the hell is it so much faster in every damn area,
- Michelle> and would it completely destroy Linux when the VCPU and
- Michelle> a 32 bit port comes on line?
-
- It's hard to say without looking carefully at your system. One thing
- to bear in mind is that the Linux system might have been doing other
- things at the time, since it's sometimes hard to tell what is going on
- behind your back. Here are the results of me running Speedometer 3.23
- under DOS mode of Windows '95 and under Linux (kernel 2.0.3) on the
- same 133 MHz P5 laptop. All tests were run for 10 iterations:
-
- Linux X DOS/Windows'95
- cpu 38.444 37.608
- video 7.443 19.593
- disk 18.011 2.445
- math 80.777 81.695
-
- I didn't run Linux-SVGA, because currently SVGAlib doesn't know that
- the Cirrus 7548 chip can be driven like a Cirrus 5428, and when it
- does, that will make a big difference.
-
- On my system, Linux did slightly better in CPU and slightly worse in
- math. The video difference is the difference of being able to
- directly access the screen, and the disk difference is that under
- Linux, when writing to a non-HFV, we don't flush the disk cache when
- new files are created, so every iteration of the disk test after the
- first one just whizzes by.
-
- Michelle> Maybe you should write a 16 bit version for Linux to see
- Michelle> if you could make it go faster. (Yes, I know, it was a
- Michelle> joke)
-
- Michelle> I only tried linux to see if I could wring a few more
- Michelle> bits/sec out of Executor. Tried and failed that is;)
-
- If you run multiple iterations you might see a dramatic speedup
- (depending on how much free memory you have) in the disk access. Once
- we support (and the appropriate X servers support) direct video access
- under X, then the video speeds will equalize.
-
- Michelle> Makes you wonder why the linux/os2'ers are always
- Michelle> bagging Windows95. It is also by far the easiest
- Michelle> platform to print out PostScript files when you don't
- Michelle> have a postscript printer.
-
- We drive our non-PostScript printer using GhostScript. Granted, it
- took a little fiddling to get it set up correctly, but it works fine
- for us, although most of us came from a UNIX background.
-
- I prefer Linux, but I certainly don't claim that it's the right
- solution for everyone -- heck, I don't even claim that Executor is the
- right solution for everyone, and I have a vested interest in Executor.
-
- Michelle> Just the facts maam... Michelle;)
-
- I'm still surprised that W'95 gave you a 10% gain in CPU. One thing
- that could conceivably be slowing you down would be if you were short
- on memory and Linux was doing various disk stuff (writing old dirty
- buffers or prefetching) behind your back as you were running the
- benchmark.
-
- --Cliff
- ctm@ardi.com
-
-