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Re: Fork / exec / ctx overhead (on macppc)

To: Havard.Eidnes%runit.sintef.no@localhost
Subject: Re: Fork / exec / ctx overhead (on macppc)
From: David Edelsohn <dje%watson.ibm.com@localhost>
Date: Sat, 01 Jul 2000 14:53:28 -0400

        I have not performed a thorough examination, but I have mentioned
to a few developers that the PowerPC interrupt code is flipping the MSR to
achieve atomic operations instead of using the PowerPC load-linked
store-conditional instructions.  I haven't looked at the memory management
code to explore how effectively it utilizes the PowerPC MMU.

David

References:
- Fork / exec / ctx overhead (on macppc)
  - From: Havard . Eidnes

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