---
src/qxl_ring.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/src/qxl_ring.c b/src/qxl_ring.c
index 0870ef1..02c4c35 100644
--- a/src/qxl_ring.c
+++ b/src/qxl_ring.c
@@ -75,7 +75,11 @@ qxl_ring_push (struct qxl_ring *ring,
while (header->prod - header->cons == header->num_items)
{
header->notify_on_cons = header->cons + 1;
-
+#ifdef XSPICE
+ /* in gtkperf, circles, this is a major bottleneck. Can't be that good
in a vm either
+ * Adding the yield reduces cpu usage, but doesn't improve throughput.
*/
+ pthread_yield();
+#endif
mem_barrier();
}
--
1.7.4.4
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