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- Path: dispatch.news.demon.net!demon!nibelung.demon.co.uk
- From: barry_s@nibelung.demon.co.uk (Barry Shilliday)
- Newsgroups: comp.sys.amiga.misc,demon.ip.support.amiga
- Subject: How to optimise OS 2.04+ / speedups
- Date: Sun, 14 Apr 1996 00:29:06 GMT
- Message-ID: <1540.6678T87T2503@nibelung.demon.co.uk>
- NNTP-Posting-Host: nibelung.demon.co.uk
- X-NNTP-Posting-Host: nibelung.demon.co.uk
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- The following assumes you are using an MC68020 or better.
-
- Put the following commands in your startup-sequence, after SetPatch. All of the
- programs can be found on aminet.
-
-
- Program Name Description Suggested Command Line
- ------------ ----------- ----------------------
-
- CpuBlit CPU does operations faster than CpuBlit >NIL: -b
- blitter.
-
- FBL Replaces some blitter functions FBL >NIL:
- with optimised code.
-
- FastExec Puts ExecBase into Fast RAM. FastExec >NIL:
-
- VBrMove Puts Vector base into fast RAM. VBrMove >NIL:
-
- CopyMemQuicker Optimised RAM copying routines, up CopyMemQuicker >NIL:
- to 80% faster on some operations.
-
- HardIPatch Improved interrupts HardIPatch >NIL:
-
- PatchWPA8 Faster 8bit screens (AGA) PatchWPA8 >NIL:
-
- SmartWB Forces WB to open smart_refresh wins. SmartWB QUIET
-
-
- CpuBlit will hugely increase the speed of the display - AIBB shows my '030
- outperforming an A4000/040 in text output. The others will provide small
- increases in speed in most circumstances, the extent of which will depend on
- what is running. SmartWB will cause more memory consumption for faster update.
-
- Also, a very useful program is on aminet to patch all executables to use 32-bit
- 68020+ maths functions. The standard 68000 code that is produced has to use
- very slow 16 bit functions. Most of Workbench programs/libraries can be
- patched, along with lots of others. The speed increase gained obviously depends
- on the number of these functions that are used, but most programs will gain 20%
- or so speed increases.
-
- --
- Barry
-
-