[ntp:questions] Why does ntp keep changing my conf file?

John Hasler jhasler at newsguy.com
Mon Sep 20 18:50:11 UTC 2010

Daniel Havey writes:
> This is a modern networking device, it's going send the packet right
> away.  Sure a few interrupts will coalese but it's not gonna get
> recieve livelock or anything like that.  The GigE card is gonna get
> the packet out the door right away, I think any jitter will be small.

See <http://www.29west.com/docs/THPM/latency-interrupt-coalescing.html>

>From <http://proj.sunet.se/lanng/lanng2000/lang.html>:

  Shared memory architectures [in switches] are normally better than
  having a fixed buffer per port as not all ports will be used
  simultaneously at the edge.  A 25 MB shared memory buffer for gigabit
  speeds corresponds to roughly 200 ms, which is reasonable.
John Hasler 
jhasler at newsguy.com
Dancing Horse Hill
Elmwood, WI USA

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