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mv643xx_eth: shrink default receive and transmit queue sizes

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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>
This commit is contained in:
Lennert Buytenhek 2008-09-14 14:09:59 +02:00 committed by Lennert Buytenhek
parent 99ab08e091
commit 2b4a624d70
1 changed files with 2 additions and 2 deletions
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drivers/net/mv643xx_eth.c
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@ -165,8 +165,8 @@ static char mv643xx_eth_driver_version[] = "1.3";
#define FORCE_LINK_PASS (1 << 1) #define FORCE_LINK_PASS (1 << 1)
#define SERIAL_PORT_ENABLE (1 << 0) #define SERIAL_PORT_ENABLE (1 << 0)
#define DEFAULT_RX_QUEUE_SIZE 400 #define DEFAULT_RX_QUEUE_SIZE 128
#define DEFAULT_TX_QUEUE_SIZE 800 #define DEFAULT_TX_QUEUE_SIZE 256
/* /*