Re: Regarding bottlenecks for high speed packet generation

From: Ajith Adapa <redacted>
Date: Fri, 26 Oct 2012 08:19:15 +0530

Hi,

quoted

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.