From 112f90aed6c636816f40afc88ae63af0966c9e3a Mon Sep 17 00:00:00 2001
From: forsyth <forsyth@vitanuova.com>
Date: Sun, 13 Dec 2009 16:25:26 +0000
Subject: 20091213-1625

---
 CHANGES           | 2 ++
 emu/port/dis.c    | 3 ++-
 include/version.h | 2 +-
 os/port/dis.c     | 3 ++-
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/CHANGES b/CHANGES
index d6653e2b..3e737607 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+20091213
+	temper the tendancy of port/dis.c to yield during idle gc: it's compensating for os scheduling, but yield less often
 20091208
 	add mkdir -p to makemk.sh to ensure output directories exist [issue 213]
 20091127
diff --git a/emu/port/dis.c b/emu/port/dis.c
index 7f8db7b2..881bd81f 100644
--- a/emu/port/dis.c
+++ b/emu/port/dis.c
@@ -104,7 +104,8 @@ execatidle(void)
 		}
 		rungc(isched.head);
 		gcidlepass++;
-		osyield();
+		if(((ulong)gcidlepass&0xFF) == 0)
+			osyield();
 	}
 	up->type = Interp;
 	delrunq(up->prog);
diff --git a/include/version.h b/include/version.h
index 9f1e021d..7579ef5a 100644
--- a/include/version.h
+++ b/include/version.h
@@ -1 +1 @@
-#define VERSION	"Fourth Edition (20091208)"
+#define VERSION	"Fourth Edition (20091213)"
diff --git a/os/port/dis.c b/os/port/dis.c
index 8859a1b9..0eb2d190 100644
--- a/os/port/dis.c
+++ b/os/port/dis.c
@@ -119,7 +119,8 @@ execatidle(void)
 		}
 		rungc(isched.head);
 		gcidlepass++;
-		sched();
+		if(((ulong)gcidlepass&0xFF) == 0)
+			sched();
 	}
 
 	up->type = Interp;
-- 
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