Unix on IBM Mainframes & Clones

Narayan Mohanram narayan at twg-ap.UUCP
Sat Aug 9 07:22:02 AEST 1986


There is no comparison between the two. UTS is fast, and real UN*X.
Also with the Amdahls' session functionality, you can't beat it. It
is by far the best System 5 I have seen to date.

IX370 on the other hand runs on top of RSS which is the real OS
which runs on top of VM. You have problems in flakiness of the
system. Also as process are all controlled by RSS, signaling
has a few quirks that are really frustrating.

If you need to work in the kernel, IX370 leaves a lot to be desired.
-- 

Narayan Mohanram

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