From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: Regarding bottlenecks for high speed packet generation
Date: Thu, 25 Oct 2012 23:18:14 -0400 (EDT)
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From: Ajith Adapa <adapa.ajith@gmail.com>
Date: Fri, 26 Oct 2012 08:19:15 +0530

> Hi,
> 
>> If the driver uses NAPI [1] / the chip supports that, then not. You
>> can observe the hardware / software interrupts via ifpps or watching
>> procfs or some other tools, or simply look at the driver
>> implementation.
>>
>> [1] http://www.linuxfoundation.org/collaborate/workgroups/networking/napi
> 
> But does NAPI comes into picture in case of transmission of packets ?

Reclaim of TX descriptors occurs via NAPI.