branches/zip: add ChangeLog entries for r5484-r5486.

ChangeLog

@@ -5,6 +5,39 @@
 	innodb_sync_spin_loops: 20 -> 30
 	innodb_spin_wait_delay: 5 -> 6
 
+2009-07-08	The InnoDB Team
+
+	* srv/srv0srv.c, buf/buf0flu.c, handler/ha_innodb.cc,
+	include/srv0srv.h, include/log0log.ic, include/buf0flu.h,
+	include/log0log.h:
+	Implement the adaptive flushing of dirty pages, which uses
+	a heuristics based flushing rate of dirty pages to avoid IO
+	bursts at checkpoint. Expose new configure knob
+	innodb_adaptive_flushing to control whether the new flushing
+	algorithm should be used.
+
+2009-07-07	The InnoDB Team
+
+	* buf/buf0flu.c:
+	Change the algorithm of flushing neighbors. The current
+	implementation is to try to flush the neighbors of every
+	page that we flush. This patch makes the following distinction:
+	  1) If the flush is from flush_list, AND
+	  2) If the flush is intended to move the oldest modification
+	     LSN ahead
+	THEN, do not try to flush the neighbors. Just focus on flushing
+	dirty pages at the end of flush_list.
+
+2009-07-07	The InnoDB Team
+
+	* srv/srv0srv.c, handler/ha_innodb.cc, log/log0log.c,
+	include/srv0srv.h:
+	Implement IO capacity tuning. Expose new configure knob
+	innodb_io_capacity to control the master threads IO rate. The
+	ibuf merge is also changed from synchronous to asynchronous.
+	These changes are based on contribution from Google Inc.
+	under a BSD license.
+
 2009-07-02	The InnoDB Team
 
 	* include/ut0ut.h, plug.in, ut/ut0ut.c: