[pypy-commit] extradoc extradoc: Updates

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: extradoc
Changeset: r4665:8ea7c40ddd35
Date: 2012-08-17 13:06 +0200
http://bitbucket.org/pypy/extradoc/changeset/8ea7c40ddd35/

Log:	Updates

diff --git a/talk/stm2012/stmimpl.rst b/talk/stm2012/stmimpl.rst
--- a/talk/stm2012/stmimpl.rst
+++ b/talk/stm2012/stmimpl.rst
@@ -22,6 +22,9 @@
 with a pointer to the new global object.  We thus make a chained list
 of global versions.
 
+It is the job of the GC to collect the older versions when they are
+not referenced any more by any thread.
+
 
 CPUs model
 ----------
@@ -37,7 +40,7 @@
 see the old value.
 
 The MFENCE instruction waits until all delayed stores from this CPU have
-been flushed.  (A CPU has no built-in way to wait until *other* CPU's
+been flushed.  (A CPU has no built-in way to wait until *other* CPUs'
 stores are flushed.)
 
 The LOCK CMPXCHG instruction does a MFENCE followed by an atomic
@@ -63,8 +66,8 @@
 - ``h_possibly_outdated`` is used as an optimization: it means that the
   object is possibly outdated.  It is False for all local objects.  It
   is also False if the object is a global object, is the most recent of
-  its chained list of versions, and is known to have no
-  ``global_to_local`` entry in any transaction.
+  its chained list of versions, and is known to have no modified local
+  version in any transaction.
 
 - ``h_written`` is set on local objects that have been written to.