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PERFORCE change 64689 for review

Subject: PERFORCE change 64689 for review
From: John Baldwin
Date: Tue, 9 Nov 2004 14:51:18 GMT

Change 64689 by [email protected]_slimer on 2004/11/09 14:50:33


Affected files ...

.. //depot/projects/smpng/sys/notes#25 edit

Differences ...

==== //depot/projects/smpng/sys/notes#25 (text+ko) ====

@@ -51,6 +51,8 @@
   a fast interrupt context
 - "Optimize" atomic_store_rel() on i386 (it actually seems to be slower,
   go figure)
+  + It is faster on UP, but slower on SMP, so tweak the patch so that we use
+    the non-MP safe 386 versions on all UP kernels.
 - Optimize spin locks on UP such that they don't do atomic operations
   - Untested
   - Unbenchmarked
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