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authorLennert Buytenhek <buytenh@wantstofly.org>2008-09-14 14:09:59 +0200
committerLennert Buytenhek <buytenh@marvell.com>2008-09-14 14:18:10 +0200
commit2b4a624d706d404a3edccb6d1bb2c440a6dbbc31 (patch)
tree14b948487f861eac19ee7e91563abe6ab7d40849 /drivers/net/mv643xx_eth.c
parent99ab08e091df65ce8e191d85ebdc23f78b8355cb (diff)
downloadlinux-2b4a624d706d404a3edccb6d1bb2c440a6dbbc31.tar.gz
mv643xx_eth: shrink default receive and transmit queue sizes
Since the size of the receive queue is directly related to the data
cache footprint of the driver (between refilling a receive ring entry
with a fresh skb and receiving a packet in that entry, queue_size - 1
other skbs will have been touched), shrink the default receive queue
size to a saner number of entries, as 400 is definite overkill for
almost all workloads.

While we are at it, trim the default transmit queue size a bit as well.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Diffstat (limited to 'drivers/net/mv643xx_eth.c')
-rw-r--r--drivers/net/mv643xx_eth.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 099e0be0d8c3..4fbd62e45ae9 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -165,8 +165,8 @@ static char mv643xx_eth_driver_version[] = "1.3";
 #define FORCE_LINK_PASS				(1 << 1)
 #define SERIAL_PORT_ENABLE			(1 << 0)
 
-#define DEFAULT_RX_QUEUE_SIZE		400
-#define DEFAULT_TX_QUEUE_SIZE		800
+#define DEFAULT_RX_QUEUE_SIZE		128
+#define DEFAULT_TX_QUEUE_SIZE		256
 
 
 /*