| To: | Stephen Hemminger <shemminger@xxxxxxxx> |
|---|---|
| Subject: | Re: [RFC] netem - add jitter support. |
| From: | jamal <hadi@xxxxxxxxxx> |
| Date: | 08 Jul 2004 21:14:10 -0400 |
| Cc: | "David S. Miller" <davem@xxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <20040708135320.03366bd7@xxxxxxxxxxxxxxxxxxxxx> |
| Organization: | jamalopolis |
| References: | <20040708135320.03366bd7@xxxxxxxxxxxxxxxxxxxxx> |
| Reply-to: | hadi@xxxxxxxxxx |
| Sender: | netdev-bounce@xxxxxxxxxxx |
On Thu, 2004-07-08 at 16:53, Stephen Hemminger wrote: > This patch adds jitter if desired to the delayed packets in the > netem scheduler. I dropped the rate stuff out and reorganized so > that an underlying pfifo queue is used (next plan is to make it > have class ops). > > The jitter is given as sigma to a Gaussian normal distribution. The actual > implementation is a reduced form of the table driven stuff in NISTnet > (free). Good stuff. - Is that NIST code/reference ok to put there? I have a feeling its non-free. - Could that table be computed in user space instead? This way you are not restricted to just the normal distribution. I could also use them if available from within tc sources, cheers, jamal |
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