Do we still care about HZ=1000 with dummynet ?

[Sten Daniel Sørsdal]

Ensel Sharon wrote:
> I see in the dummynet man page:
> 
>      Generally, the following options are required:
> 
>            options IPFIREWALL
>            options DUMMYNET
>            options HZ=1000         # strongly recommended
> 
> But all of the NOTES and other documentation only mention setting the HZ
> value in conjunction with DEVICE_POLLING.
> 
> The man page for dummynet is dated October 2002.
> 
> So the question is: circa 6.1, does it matter anymore to set an HZ value
> if you aren't using DEVICE_POLLING ?
> 
> If so, why ?  I understand the benefit when used with DEVICE_POLLING, but
> not for dummynet ...

Every HZ (or divisor?) the dummynet pipes/queues are reprocessed and
recalculated to see whether a packet should leave the dummynet pipes/queues.

-- 
Sten Daniel Sørsdal