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authorDavid Sterba <dsterba@suse.cz>2008-07-28 16:53:21 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-28 08:28:03 -0700
commitbee9c7c0773517c9f1d7931144fc8dec12233bd7 (patch)
tree6c9d6943ac485d47bb14cfbd18aacf7d3464d224 /drivers/char/pcmcia/ipwireless/main.c
parent09e491e9a780433f8734eb6efb7293b2da690131 (diff)
downloadop-kernel-dev-bee9c7c0773517c9f1d7931144fc8dec12233bd7.zip
op-kernel-dev-bee9c7c0773517c9f1d7931144fc8dec12233bd7.tar.gz
ipwireless: Increase PPP outgoing queue size
ipwireless: Increase PPP outgoing queue size Increase default size of PPP outgoing queue. Currently set to 1, which means that a packet quickly following another pushed by PPP must wait until hardware actually sends the previous and PPP has to be waken up by ppp_wakeup(). This slows down upstream. Now PPP can push more packets at once which get buffered inside driver and pushed immediatelly to hardware when previous packet is out. Experiments show that size = 10 is quite good for all connection types (GPRS/EDGE/UMTS) and gains 4 KB/sec of upload for UMTS for batch uploads. Need for higher queue size than 10 occures in only < 0.1 % of cases. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/pcmcia/ipwireless/main.c')
-rw-r--r--drivers/char/pcmcia/ipwireless/main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 7169a0d..5eca7a9 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -49,7 +49,7 @@ static void ipwireless_detach(struct pcmcia_device *link);
/* Debug mode: more verbose, print sent/recv bytes */
int ipwireless_debug;
int ipwireless_loopback;
-int ipwireless_out_queue = 1;
+int ipwireless_out_queue = 10;
module_param_named(debug, ipwireless_debug, int, 0);
module_param_named(loopback, ipwireless_loopback, int, 0);
@@ -57,7 +57,7 @@ module_param_named(out_queue, ipwireless_out_queue, int, 0);
MODULE_PARM_DESC(debug, "switch on debug messages [0]");
MODULE_PARM_DESC(loopback,
"debug: enable ras_raw channel [0]");
-MODULE_PARM_DESC(out_queue, "debug: set size of outgoing queue [1]");
+MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
/* Executes in process context. */
static void signalled_reboot_work(struct work_struct *work_reboot)
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