I did FastEthernet throughput test by Smartbits with SmartApp.
 It's simpler than TCP throughput measurement. :)
 This Smartbits has some FastEthernet ports, has no GbE ports.

 The router is consist of single Xeon 2.4GHz which is HTT enabled and
two on-boarded em interfaces. The kernel is 5.3-RELEASE with option SMP.
if_em.c is version 1.44.2.3 with the sysctl-able patch.
kern.random.sys.harvest.ethernet is set to 0.

 `Interrupt Moderation on' means the combination of parameters,
hw.em?.rx_int_delay: 0
hw.em?.tx_int_delay: 66
hw.em?.rx_abs_int_delay: 66
hw.em?.tx_abs_int_delay: 66
hw.em?.int_throttle_ceil: 8000.

 `Interrupt Moderation off' means the combination of parameters,
hw.em?.rx_int_delay: 0
hw.em?.tx_int_delay: 0
hw.em?.rx_abs_int_delay: 0
hw.em?.tx_abs_int_delay: 0
hw.em?.int_throttle_ceil: 0.

`on/off' means input side interface(em0)'s moderation is `on' and output
side interface(em1)'s moderation is `off'.

 hmm ..., the results of off/on are unstable.

(A) ... Passed Rate(%)
(B) ... Passed Rate(pps)

Interrupt Moderation on/on
Frame      1st Trial       2nd Trial       3rd Trial
Size      (A)     (B)     (A)     (B)     (A)     (B)
  64     28.14   41876   28.14   41876   28.14   41876
 128     50.08   42301   49.50   41805   49.50   41806
 256     93.24   42229   92.00   41666   92.62   41946
 512    100.00   23496  100.00   23496  100.00   23496
1024    100.00   11973  100.00   11973  100.00   11973
1280    100.00    9615  100.00    9615  100.00    9615
1518    100.00    8127  100.00    8127  100.00    8127

Interrupt Moderation on/off
Frame      1st Trial       2nd Trial       3rd Trial
Size      (A)     (B)     (A)     (B)     (A)     (B)
  64     28.14   41876   27.50   40916   28.14   41876
 128     50.08   42301   48.85   41254   49.50   41806
 256     93.24   42229   92.00   41666   92.62   41946
 512    100.00   23496  100.00   23496  100.00   23496
1024    100.00   11973  100.00   11973  100.00   11973
1280    100.00    9615  100.00    9615  100.00    9615
1518    100.00    8127  100.00    8127  100.00    8127

Interrupt Moderation off/on
Frame      1st Trial       2nd Trial       3rd Trial
Size      (B)    (C)      (B)     (C)     (B)     (C)
  64    100.00  148807  100.00  148807   99.41  147927
 128    100.00   84458   55.74   47080   61.41   51867
 256    100.00   45289   98.75   44722  100.00   45289
 512    100.00   23496  100.00   23496  100.00   23496
1024    100.00   11973  100.00   11973  100.00   11973
1280    100.00    9615  100.00    9615  100.00    9615
1518    100.00    8127  100.00    8127  100.00    8127


Interrupt Moderation off/off
Frame      1st Trial       2nd Trial       3rd Trial
Size      (B)    (C)      (B)     (C)     (B)     (C)
  64     81.55  121358   81.55  121358   82.35  122547
 128    100.00   84458  100.00   84458  100.00   84458
 256    100.00   45289  100.00   45289  100.00   45289
 512    100.00   23496  100.00   23496  100.00   23496
1024    100.00   11973  100.00   11973  100.00   11973
1280    100.00    9615  100.00    9615  100.00    9615
1518    100.00    8127  100.00    8127  100.00    8127

-- 
Shunsuke SHINOMIYA <[EMAIL PROTECTED]>

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