What is "Fast task queue"? (Was: How to understand what `swi5' kernel thread does?)

[John Baldwin]

On Monday, August 27, 2012 8:46:46 am Lev Serebryakov wrote:
> Hello, Lev.
> You wrote 27 августа 2012 г., 6:19:57:
> 
>  I've found (with help of debug printing added to kernel), that "swi5"
> has only one handler "Fast task queue" (name is too long to be seen in
> `top' output, may be, rename it to "fast tqueue"?)
> 
>  What "fast tasks" are performed via this queue? Under network load it
> is main consumer of CPU.

Certain NIC drivers perform much of their interrupt handling in that thread.

-- 
John Baldwin