home *** CD-ROM | disk | FTP | other *** search
-
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- NemBench - an accurate CPU profiler for the Atari platform.
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- -----------------------------------------------------------
- Warning: NemBench requires AT LEAST a 68030 processor!
- -----------------------------------------------------------
-
- NemBench produces a base comparison with a stock Falcon030.
-
- Accurate % marks can only be attained by running NemBench
- on a clean system. NVDI will not affect the results, because
- all of the tests are based on calculational capability and
- bus bandwidth. They have absolutely nothing to do with the
- VDI or AES. The same applies to Magic, as it will only serve
- to lower the benchmarks, if anything.
-
- Use ST-high resolution monochrome (640x400x2) when running
- the tests, as this reduces the detrimental impact the video
- hardware can have on the bus when trying to display lots of
- pixels and colours. If you have a video card like Nova then
- it doesn't matter because the Falcon's screen is likely to
- be disabled and won't be drawing any bandwidth from the bus.
-
- If you are testing with a BlowUP-FX or Afterburner, or some
- kind of complicated accelerator hardware that depends on
- driver software, then you should leave the driver installed,
- along with anything else required to force the processor to
- operate at maximum processing performance. Remove anything
- superfluous (programs and accessories) which do not affect
- processing directly.
-
- Notes:
-
- * All values indicated in MByte/sec (megabytes per second)
- are based on a true megabyte (i.e. 1024x1024, or 1,048,576
- bytes).
-
- * All values indicated in MegaFlops (millions of floating-
- point operations per second) are estimated, and (like MIPS)
- are based on the classic million, or 1,000,000.
-
- * All values indicated in MIPS (millions of instructions per
- second) are estimated, and include any pipelining effects
- taking place in the processor.
-
- * MIPS are useful for relative comparisons only. They are not
- 'portable' between platforms. MegaFlops are slightly more
- portable, but should still be treated with a healthy sense
- of skepticism when making comparisons between platforms
- based on different technologies.
-
- Doug @ BSS
-