[pypy-commit] stmgc default: add XXX about possible performance issue

[Raemi]

Author: Remi Meier <remi.meier at gmail.com>
Branch: 
Changeset: r1962:41227d7659ac
Date: 2015-09-17 16:07 +0200
http://bitbucket.org/pypy/stmgc/changeset/41227d7659ac/

Log:	add XXX about possible performance issue

diff --git a/c8/stm/core.c b/c8/stm/core.c
--- a/c8/stm/core.c
+++ b/c8/stm/core.c
@@ -424,6 +424,8 @@
                                We choose the approach to reset all our changes
                                to this obj here, so that we can throw away the
                                backup copy completely: */
+                            /* XXX: this browses through the whole list of modified
+                               fragments; this may become a problem... */
                             reset_modified_from_backup_copies(my_segnum, obj);
                             continue;
                         }