Subject: [PATCH 1/1] USB: serial: sierra driver performance improvements From: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx> The following is summary of changes we have made to sierra.c driver in [PATCH 1/1] dealing with performance improvements: - Version number set to 1.3.4 - Increased the number of input/output URBs for improved performance (numbers based on an measurement study triggered by a user request). We performed the testing using a network simulator that provided full speeds in the uplink and downlink directions and this combination of URBs provided the best throughput. Signed-off-by: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx> --- drivers/usb/serial/sierra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/usb/serial/sierra.c.orig 2009-04-24 16:46:22.000000000 -0700 +++ b/drivers/usb/serial/sierra.c 2009-04-24 16:47:43.000000000 -0700 @@ -32,8 +32,8 @@ #define SWIMS_USB_REQUEST_SetNmea 0x07 /* per port private data */ -#define N_IN_URB 4 -#define N_OUT_URB 4 +#define N_IN_URB 8 +#define N_OUT_URB 64 #define IN_BUFLEN 4096 static int debug; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
