From f687608e1c2d7fcfc0000b15badd70c6f1f2e501 Mon Sep 17 00:00:00 2001
From: "heikki@hundin.mysql.fi" <>
Date: Mon, 18 Oct 2004 15:00:39 +0300
Subject: srv0srv.c:   If innodb_thread_concurrency would be exceeded, let a
 thread sleep 10 ms before entering the FIFO queue; previously, the value was
 50 ms, which Peter Z considered too long

---
 innobase/srv/srv0srv.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'innobase/srv')

diff --git a/innobase/srv/srv0srv.c b/innobase/srv/srv0srv.c
index d913d77fdfc..b34ae9f36f4 100644
--- a/innobase/srv/srv0srv.c
+++ b/innobase/srv/srv0srv.c
@@ -951,7 +951,13 @@ retry:
 
 		trx->op_info = "sleeping before joining InnoDB queue";
 
-		os_thread_sleep(50000);
+		/* Peter Zaitsev suggested that we take the sleep away
+		altogether. But the sleep may be good in pathological
+		situations of lots of thread switches. Simply put some
+		threads aside for a while to reduce the number of thread
+		switches. */
+
+		os_thread_sleep(10000);
 
 		trx->op_info = "";
 
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