On 08/21/14 19:03, Stuart Henderson wrote:
On 2014-08-21, Federico Giannici <[email protected]> wrote:
We are using a firewall/qos server with a lot of HFSC queues.
We have just switched to the new queueing system of 5.5.
We'd like to get rid of custom kernels because now there is no longer
the limit of 64 HFSC classes, but I have recently read that there are
still limits to the efficacy of the queueing system with the standard
100 HZ in systems with high speed connections.
Is this still true?
If so, is there some way to calculate, or at least have an idea, of the
minimum HZ value required for a given output speed and queues parameters?
Thanks.
Queues with the default HZ are OK with high speed connections. The problem
is with *low* speed connections. I don't know how to calculate values though.
We have many slow speed queues (most of them from 2Mbps to 12Mbps and a
few with higher speeds) with a relatively high speed output interface
(currently 500Mbps).
Any idea of HZ required in this situation?
Thanks.
