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- Path: news.uh.edu!barrett
- From: the_doctor@nesbbx.rain.com (Michel J. Brown)
- Newsgroups: comp.sys.amiga.reviews
- Subject: REVIEW: GigaMem, revision 3
- Followup-To: comp.sys.amiga.applications
- Date: 29 May 1994 01:33:53 GMT
- Organization: The Amiga Online Review Column - ed. Daniel Barrett
- Lines: 241
- Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
- Distribution: world
- Message-ID: <2s8re1$im2@masala.cc.uh.edu>
- Reply-To: the_doctor@nesbbx.rain.com (Michel J. Brown)
- NNTP-Posting-Host: karazm.math.uh.edu
- Keywords: virtual memory, MMU, RAM, commercial
- Originator: barrett@karazm.math.uh.edu
-
-
-
- PRODUCT NAME
-
- GigaMem, revision 3
-
-
- BRIEF DESCRIPTION
-
- GigaMem is a virtual memory management program. It requires an
- Amiga computer with hard drive, a processor with an MMU, and at least 3MB of
- fast RAM.
-
- [MODERATOR'S NOTE: This review assumes that the reader knows what
- virtual memory is. Briefly, it is a way to make a part of your hard
- drive act like memory (RAM). This increases the amount of RAM
- available on your Amiga, at the expense of some hard disk space and
- some speed (since hard drive access is slower than RAM access).
- - Dan]
-
-
- AUTHOR/COMPANY INFORMATION
-
- Name: BSC Bueroautomation AG
- Address: Lerchenstraae 5
- 80995 Mnchen 50
- Germany
-
- Telephone: ++49/89/357130-0
- FAX: ++49/89/357130-99
-
-
- LIST PRICE
-
- I do not know the list price of the product. The software was
- included free with my Oktagon SCSI host adapter which I bought for $129.95
- (US) from my dealer.
-
-
- SPECIAL HARDWARE AND SOFTWARE REQUIREMENTS
-
- HARDWARE
-
- 3 MB Fast RAM required. It used for buffer space and
- data caching.
-
- A hard drive is required. Sizes up to 1 GB are supported.
-
- A processor with a memory management unit (MMU) is
- required.
-
- SOFTWARE
-
- Works with all AmigaDOS versions.
- Some features are unavailable under older AmigaDOS versions.
-
- Full functionality is obtained with AmigaDOS 2.1 and above.
- Even though it is compatible with AmigaDOS 3.0, it doesn't
- seem to take advantage of any of the newer features present
- in 3.0 as far as I know.
-
-
- COPY PROTECTION
-
- None.
-
-
- MACHINE USED FOR TESTING
-
- Amiga 2500 (rev 4.5), 2 MB Chip RAM, 4 MB Fast RAM.
- Oktagon SCSI host adapter with Quantum 1080 Empire SCSI-2 hard drive.
- Kickstart version 37.300, Workbench version 38.35.
-
-
- INSTALLATION
-
- Installation uses the Commodore Installer and is very easy. I
- selected the Expert installation mode and found most of the defaults to be
- standard. Even Novice installation mode wouldn't have been much different.
- You can even choose the language in which the installation will occur:
- English is the default, while French and German are supported. If you have
- AmigaDOS 2.1 or above, locales are also supported. The Amiga Style Guide
- guidelines are completely supported throughout the entire installation.
-
-
- REVIEW
-
- The documentation is written in a "German first, English second"
- booklet labeled "GigaMem." It is well written and includes both
- "step-by-step" and "expert" installation descriptions. Throughout the book
- are suggestions, warnings, and helpful tips about hard drive installation,
- use, and maintenance.
-
- After selecting the appropriate mode, you can set the size of the
- virtual memory file or partition by using the intuitive editor. One caveat
- here, though, is that you must specify the size of the file in megabytes, so
- a partition swap medium would ghost out the choice for swap size. Once the
- size of the file or partition is set, then you have to select the amount of
- real RAM you wish to devote to buffers and caches. The recommended amount is
- that buffers should have one fourth of total RAM, and caches should be sized
- according to the largest file to be handled at one time. As an example, I
- give GigaMem 1MB of buffer RAM and 256K for caching purposes. Depending on
- the size and speed of your drive, you may want to adjust these accordingly,
- as they seem to be inversely proportional to the speed of access and use.
-
- The documentation has several warnings about using the swap file
- method, as there may be conflicts with data and other files in the swap
- file area. I use the partition method, giving 175MB to GigaMem for virtual
- memory purposes. This ensures that the random read/writes to the drive stay
- in a controlled environment, and won't affect other files in any way other
- than to allow for larger than normal projects to be done.
-
- GigaMem comes already set up to be used with several programs, like
- AdPro, Deluxe Paint (animation only), and Imagine. I have tested it only
- with AdPro, DPaint 4.1, Imagine 2.0, Pro Write 3.2, Scenery Animator 2.05,
- and UChessL. While all of these programs worked exceptionally well, with the
- one notable exception of DPaint 4.1, the greatest surprise came when I tried
- UChessL (V2.83) on my system. First of all, it requires a 68040 CPU and 8MB
- of free RAM, yet it booted cleanly and performed as well as the lesser
- versions without any speed penalties. As to what happened with DPaint 4.1,
- it is anybody's guess. First, I tried a simple morph across 30 frames and
- promptly ran out of memory. Then I tried to concatenate a 750-frame
- animation generated by Scenery Animator, and it wouldn't even load the first
- frame, even though I set the frame count to 750 and selected the base name
- of the file without the frame count extension. Perhaps this is a problem
- with DPaint 4.1, as there have been quite a few patches released for
- different versions.
-
- One caveat here in regards to speed of access and use. A friend of
- mine tested GigaMem on his machine, a stock A4000/040 with 8MB fast RAM and
- 2MB chip RAM. Due to his having a slower IDE drive and no burst mode,
- GigaMem slowed down his system to a bearable crawl, while my system went 3-5
- times faster. The two controlling factors appear to be the speed of the
- drive and the speed of the RAM. On a fast system, this is a moot point, as
- my virtual memory speed tests somewhere in between Fast and Chip RAM. The
- A4000 showed its Fast RAM to be about half as fast as mine, and the Chip RAM
- about the same, while the virtual memory was dog slow (approximately one
- fifth the speed of Fast RAM). So for the need of working on large projects
- that are RAM intensive like image processing and rendering on a fast machine
- with a fast drive, GigaMem is a very cost-effective means to an end, without
- a great deal of expense in hardware.
-
- All in all, this is a fine product from a supportive and growing
- company, and I would highly recommend getting the program if you are in the
- market for a fast and inexpensive method of RAM acquisition.
-
-
- DOCUMENTATION
-
- The printed documentation comes in a 96-page perfect bound booklet,
- with the first half in German, the second in English. My congratulations to
- the writers for the excellent translation and low spelling error count. The
- documentation is very straightforward and covers every aspect of
- installation, use, and maintenance. All levels of expertise are covered, and
- beginners to experts alike won't be disappointed or confused by the
- nomenclature.
-
-
- LIKES
-
- I like the ease of use, the intuitive system that is completely
- Style Guide compliant, and the use of advanced features from recent
- AmigaDOS versions.
-
-
- DISLIKES AND SUGGESTIONS
-
- About the only dislike I had was that in order to use a program, it
- has to be on the database, which is included. As an example, I tried to drag
- and drop (like an AppIcon in this respect) the icon for GVP's DSS8+ sound
- sampler hardware. Although it registered on the memory allocation counter
- in DSS, it wouldn't use any virtual memory whatsoever. What was really
- surprising is that there is support in the database for AudioMaster III/IV,
- and yet DSS is left out. I tried editing the AudioMaster and DSS files
- manually, but was unable to get it to work. Since sound files can be quite
- large, and DSS is a pretty well established product, I cannot understand why
- it wasn't included, or why GVP won't allow for the use of virtual memory.
- Maybe in future releases we'll see it.
-
- As for DPaint 4.1, I don't know why it wouldn't make even a small
- animation, like a morph, or even a large one of 750 frames from a Scenery
- Animator animation I did for a project. FRED, however came through, even
- though it uses Chip RAM for the thumb nails it generates to make the
- animation from the frames generated.
-
-
- COMPARISON TO OTHER SIMILAR PRODUCTS
-
- The only comparable product is the shareware product VMM040 which
- requires a 68040 processor, so I was unable to test it. My friend with the
- A4000/040 tried to use VMM040, and couldn't get it to work at all, as the
- documentation leaves a lot to be desired and assumes a complete knowledge of
- the inner workings of an MMU-bearing 68040 processor. Definitely not for
- the faint of heart. Other than that, I am not aware of any other comparable
- products that are generally available.
-
-
- BUGS
-
- None noted.
-
-
- VENDOR SUPPORT
-
- Full addresses, and phone/fax numbers are supplied, but the hotline
- for technical support is sent back only after registration card is received
- by BSC. I am not associated with BSC/Alfa Data in any way except as a
- satisfied customer.
-
-
- WARRANTY
-
- One year warranty on software and the installation software.
- Warranty appears to be transferrable, as no mention is made either way as to
- the transfer of title.
-
-
- CONCLUSIONS
-
- This is an excellent product at a fair price, and considering the
- performance capabilities exhibited, I would hazard a guess that the faster
- your machine, the faster the throughput. According to SysInfo 3.14, I get a
- speed of my virtual memory in between the speed of my Fast and Chip RAM. It
- would appear that faster processors coupled with faster drives will produce
- the best results, naturally enough, but faster than your average comparably
- equipped machine. I'd give GigaMem a rating of 4+ stars out of 5 and a full
- five stars if they make the appropriate changes to the database, allowing
- use of Digital Sound Studio and DPaint 4.1.
-
-
- COPYRIGHT NOTICE
-
- Copyright 1994 by Dr. Michel J. Brown. All rights reserved.
-
- ---
-
- Daniel Barrett, Moderator, comp.sys.amiga.reviews
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