Re: igb PMD should set the default tx wthresh correctly.

["Wiles, Keith" <keith.wiles@intel.com>]

On 7/17/15, 9:15 AM, "dev on behalf of Thomas Monjalon"
<dev-bounces@dpdk.org on behalf of thomas.monjalon@6wind.com> wrote:

>2015-07-16 19:49, Stephen Hemminger:
>> On Fri, 17 Jul 2015 00:52:09 +0000
>> "Lu, Wenzhuo" <wenzhuo.lu@intel.com> wrote:
>> 
>> > Hi Stephen,
>> > I don't think there's a conflict. The message just reminder us that
>>we can adjust the values to achieve better performance.
>> > I saw ixgbe and i40e also use 0 as the same default value. To my
>>opinion, it's good to keep the same behavior.
>> > Thanks.
>> 
>> In my opnion, no application should have to make special case setup
>> for each device type. Having to have a table that lists all the
>>parameters
>> for each device name is not supportable or scaleable.
>> 
>> The DPDK started out as "lets do benchmarks fast" but as a production
>> toolkit it needs to stop having this kind of thing.
>> 
>> The message shows up to the end-user, who thinks it is a driver bug.
>> The "us" is now real customers not DPDK developers.
>
>+1 to have better default values and less scary messages.
+1 I agree we should have default values. The scary message is for
debugging only in the best of cases and just wrong for the normal case.
>