Re: [dts] [PATCH] framework support get oversize for performance

["Zhang, XiaonanX" <xiaonanx.zhang@intel.com>]

Hi Yong,
   I modified it for l3fwd performance about jumbo frame case as follows,
   if frame_size > 1518,
   l3fwd cmdline should add --enable-jumbo --max-pkt-len frame_size.
   If we use ixia while rate return 0, We should focus on oversize at the same time.


Best Regards
Thanks 

-----Original Message-----
From: Liu, Yong 
Sent: Tuesday, January 27, 2015 9:35 AM
To: Zhang, XiaonanX; dts@dpdk.org
Subject: RE: [dts] [PATCH] framework support get oversize for performance

Hi xiaonan,
Can you give use more detail information? Like that in which suite we should use oversize in replace of bitrate?

> -----Original Message-----
> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of Xiaonan Zhang
> Sent: Monday, January 26, 2015 5:19 PM
> To: dts@dpdk.org
> Subject: [dts] [PATCH] framework support get oversize for performance
> 
> From: "xiaonanx.zhang" <xiaonanx.zhang@intel.com>
> 
> modify get_transmission_results function in framework etgen.py
> use ixia api stat cget -oversize to get Oversize and CRC Errors
> 
> add return get oversize condition
> 
> Signed-off-by: xiaonanx.zhang <xiaonanx.zhang@intel.com>
> ---
>  framework/etgen.py | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/framework/etgen.py b/framework/etgen.py
> index 2f2e975..f2da4ab 100644
> --- a/framework/etgen.py
> +++ b/framework/etgen.py
> @@ -581,13 +581,18 @@ class IxiaPacketGenerator(SSHConnection):
>              out = self.send_expect("stat cget -bitsReceived", '% ', 10)
>              self.logger.debug("port %d bits rate:" % (port) + out)
>              bpsRate += int(out.strip())
> +            out = self.send_expect("stat cget -oversize", '%', 10)
> +            oversize += int(out.strip())
> 
>          self.logger.info("Rate: %f Mpps" % (rate * 1.0 / 1000000))
>          self.logger.info("Mbps rate: %f Mbps" % (bpsRate * 1.0 / 1000000))
> 
>          self.send_expect("ixStopTransmit portList", "%", 30)
> 
> -        return (bpsRate, rate)
> +        if rate == 0 and oversize > 0:
> +            return (bpsRate, oversize)
> +        else:
> +            return (bpsRate, rate)
> 
>      def config_ixia_dcb_init(self, rxPort, txPort):
>          """
> --
> 1.9.3