AmigaOS4 Feature Set: Release 1

[chris]

I'm a little worried about what they did with DOS pattern matching. I thought it was just short of *nix regular expressions without being too *nix-y, which is what I fear they have turned it into. I suppose this isn't THAT bad, but the old pattern matching was so elegant.

I doubt much has been done to it - some scripts rely on the more advanced features, and ASL requesters are commonly called with ~(.info|.backdrop) as the default pattern filter.  If anything has been done, it would have been expanded, otherwise you risk compatibility.

Whoever mentioned ARexx: there were some small updates done for OS3.5/9 but I'm not entirely sure what they entailed.

Chris

[chris]

Extremely fast context switching times: 1 microsecond on a 600 MHz G3.

Extremely low latency for IPC: Signal "roundtrip" times below 4 microseconds

NB: microseconds.  4microseconds (sorry, I know the symbol but have no idea how to type it on this Windows thingy) is 0.004ms.  That's fast!

Let's re-run your comparison:

Linux      0.6         1.8
WinNT    0.85       3.1
ExecSG  0.001    0.004

btw the times for MacOS9 were quoted at the WOA-SE, these were good but still slower than OS4/ExecSG on similar spec hardware.

Chris  :-D