From 2d554ab4874943a6b73132ba84835586011f2b45 Mon Sep 17 00:00:00 2001

From: Adam Jackson <ajax@redhat.com>

Date: Fri, 30 Nov 2012 13:50:40 -0500

Subject: [PATCH] mieq: Bump default queue size to 512

Based on some bugzilla scraping just now.  Of xserver bugs with

attachments, the distribution looks like:

String                      | Matches

-------------------------------------

Increasing EQ size to 512   | 460

Increasing EQ size to 1024  | 52

Increasing EQ size to 2048  | 6

Increasing EQ size to 4096  | 0

Most of the "512" ones appear to be mostly harmless, some relatively

expensive path in either rendering or resource destruction simply taking

too long due to external pressures like paging or CPU contention.  So

let's raise the initial queue size, both to reduce the number of

spurious abrt reports and to drop fewer events in all but the most

pathological cases.

Signed-off-by: Adam Jackson <ajax@redhat.com>

---

 mi/mieq.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mi/mieq.c b/mi/mieq.c

index b2c7769..c1d845b 100644

--- a/mi/mieq.c

+++ b/mi/mieq.c

@@ -60,7 +60,7 @@ in this Software without prior written authorization from The Open Group.

 #endif

 /* Maximum size should be initial size multiplied by a power of 2 */

-#define QUEUE_INITIAL_SIZE                 256

+#define QUEUE_INITIAL_SIZE                 512

 #define QUEUE_RESERVED_SIZE                 64

 #define QUEUE_MAXIMUM_SIZE                4096

 #define QUEUE_DROP_BACKTRACE_FREQUENCY     100

-- 

1.7.11.7