Dear Paul,

Opteron 2222 UP mode, no polling

          input          (em0)           output
 packets  errs      bytes    packets  errs      bytes colls
 1071020     0   66403248          2     0        404     0

that looks good. (but seems to be near the limit).

Polling turned on provided better performance on 32 bit, but it gets strange errors on 64 bit.. Even at low pps I get small amounts of errors, and high pps same thing.. you would think that if it got errors at low pps it would get more errors at high pps but that isn't the case..
Polling on:
packets  errs      bytes    packets  errs      bytes colls
  979736   963   60743636          1     0        226     0
  991838   496   61493960          1     0        178     0
  996125   460   61759754          1     0        178     0
  979381   326   60721626          1     0        178     0
 1022249   379   63379442          1     0        178     0
  991468   557   61471020          1     0        178     0

lowering pps a little.......
         input          (em0)           output
 packets  errs      bytes    packets  errs      bytes colls
  818688   151   50758660          1     0        226     0
  837920   179   51951044          1     0        178     0
  826217   168   51225458          1     0        178     0
  801017   100   49663058          1     0        178     0
  761857   287   47235138          1     0        178     0


what could cause this?

*) kern.polling.idle_poll enabled?
*) kern.polling.user_frac ?
*) kern.polling.reg_frac ?
*) kern.polling.burst_max ?
*) kern.polling.each_burst ?

Kind regards,
        Ingo Flaschberger
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