PERFORCE change 63836 for review

[John Baldwin]

http://perforce.freebsd.org/chv.cgi?CH=63836

Change 63836 by jhb at jhb_slimer on 2004/10/27 17:47:26

	Update notes.

Affected files ...

.. //depot/projects/smpng/sys/notes#22 edit
.. //depot/user/jhb/needresched/notes#7 edit

Differences ...

==== //depot/projects/smpng/sys/notes#22 (text+ko) ====

@@ -53,5 +53,16 @@
   go figure)
 - Optimize spin locks on UP such that they don't do atomic operations
   - Untested
+  - Unbenchmarked
+- Add support for disabling CPUs on x86 via APIC ID (hint.lapic.X.disabled)
+  - need to separate mp_ncpus a bit, maybe mp_ncpus stays as count of
+    present CPUs, but a separate mp_activecpus is count of CPUs actually in
+    use.  Hmm, CPUs really should just not show up when they are disabled
+    maybe, but that means fudging with mp_ncpus.
+- Fix boot_cpu_id to be a logical FreeBSD cpuid that is the BSP on all archs
+  - Maybe hardcode FreeBSD cpuid 0 as BSP instead
+- Change alpha to use logical FreeBSD cpuid's rather than mapping 1:1 to
+  physical IDs
+- Revert bde's changes to the interrupt storm code.
 
 Space reserved for child branches:

==== //depot/user/jhb/needresched/notes#7 (text+ko) ====

@@ -74,3 +74,7 @@
   - ULE
 - Move the postsig() loop in ast() into userret(), possibly conditional
   on needresched?  If so, it goes into sched_userret().
+- Need lots of thought on realtime and idle time priorities and handling
+  tsleep() priority "boosts" for such processes.  Might need to make
+  the priority boost be something passsed to sched_sleep() rather than
+  a sched_prio() call.