[PATCH] ibm_newemac: Increase number of default rx-/tx-buffers
Benjamin Herrenschmidt
benh at kernel.crashing.org
Sat Jan 5 21:19:48 EST 2008
On Sat, 2008-01-05 at 10:50 +0100, Stefan Roese wrote:
> Performance tests done by AMCC have shown that 256 buffer increase the
> performance of the Linux EMAC driver. So let's update the default
> values to match this setup.
>
> Signed-off-by: Stefan Roese <sr at denx.de>
> ---
Do we have the numbers ? Did they also measure latency ?
Ben.
> drivers/net/ibm_newemac/Kconfig | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ibm_newemac/Kconfig b/drivers/net/ibm_newemac/Kconfig
> index 0d3e738..5a06727 100644
> --- a/drivers/net/ibm_newemac/Kconfig
> +++ b/drivers/net/ibm_newemac/Kconfig
> @@ -9,12 +9,12 @@ config IBM_NEW_EMAC
> config IBM_NEW_EMAC_RXB
> int "Number of receive buffers"
> depends on IBM_NEW_EMAC
> - default "128"
> + default "256"
>
> config IBM_NEW_EMAC_TXB
> int "Number of transmit buffers"
> depends on IBM_NEW_EMAC
> - default "64"
> + default "256"
>
> config IBM_NEW_EMAC_POLL_WEIGHT
> int "MAL NAPI polling weight"
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