[pypy-commit] stmgc c8-long-transactions: Make single thread mode transactions inevitable only if there are less than two segments in use

[tobweber]

Author: Tobias Weber <tobias_webe...@gmx.de>
Branch: c8-long-transactions
Changeset: r2045:e2d2d2abc99c
Date: 2017-04-26 21:01 +0200
http://bitbucket.org/pypy/stmgc/changeset/e2d2d2abc99c/

Log:    Make single thread mode transactions inevitable only if there are
        less than two segments in use

diff --git a/c8/stm/core.c b/c8/stm/core.c
--- a/c8/stm/core.c
+++ b/c8/stm/core.c
@@ -1170,7 +1170,9 @@
                 segments_in_use));
         if (segments_in_use <= single_thread_mode_segments_in_use_limit) {
             start_single_thread_mode();
-            _stm_become_inevitable("execute_in_single_thread_mode");
+            if (segments_in_use < 2) {
+                _stm_become_inevitable("execute_in_single_thread_mode");
+            }
         } else if (stm_single_thread_mode_active) {
             end_single_thread_mode();
         }
_______________________________________________
pypy-commit mailing list
pypy-commit@python.org
https://mail.python.org/mailman/listinfo/pypy-commit