MicrosoftHere's an iperf 2 run using local host which should give a measure of CPU performance
C:\Users\rebec\Downloads>iperf-2.2.n-win64.exe -c localhost -e -i 1 -P 1
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Client connecting to localhost, TCP port 5001 with pid 13496 (1/0 flows/load)
Write buffer size: 131072 Byte
TOS defaults to 0x0 (dscp=0,ecn=0) (Nagle on)
TCP window size: 512 KByte (default)
------------------------------------------------------------
[ 1] local 127.0.0.1 port 62121 connected with 127.0.0.1 port 5001 on 2024-04-29 09:10:36.443634 (Pacific Daylight Time)
[ ID] Interval Transfer Bandwidth Write/Err
[ 1] 0.00-1.00 sec 5.45 GBytes 46.8 Gbits/sec 44634/0
[ 1] 1.00-2.00 sec 5.29 GBytes 45.4 Gbits/sec 43315/0
[ 1] 2.00-3.00 sec 5.25 GBytes 45.1 Gbits/sec 43031/0
[ 1] 3.00-4.00 sec 5.32 GBytes 45.7 Gbits/sec 43579/0
[ 1] 4.00-5.00 sec 5.30 GBytes 45.5 Gbits/sec 43387/0
[ 1] 5.00-6.00 sec 5.37 GBytes 46.2 Gbits/sec 44023/0
[ 1] 6.00-7.00 sec 5.30 GBytes 45.5 Gbits/sec 43405/0
[ 1] 7.00-8.00 sec 5.33 GBytes 45.8 Gbits/sec 43662/0
[ 1] 8.00-9.00 sec 5.40 GBytes 46.4 Gbits/sec 44204/0
[ 1] 9.00-10.00 sec 5.19 GBytes 44.6 Gbits/sec 42487/0
[ 1] 0.00-10.01 sec 53.2 GBytes 45.6 Gbits/sec 435728/0
C:\Users\rebec\Downloads>iperf-2.2.n-win64.exe -c localhost -e -i 1 -P 2
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Client connecting to localhost, TCP port 5001 with pid 18136 (2/0 flows/load)
Write buffer size: 131072 Byte
TOS defaults to 0x0 (dscp=0,ecn=0) (Nagle on)
TCP window size: 512 KByte (default)
------------------------------------------------------------
[ 2] local 127.0.0.1 port 62166 connected with 127.0.0.1 port 5001 on 2024-04-29 09:11:05.291509 (Pacific Daylight Time)
[ 1] local 127.0.0.1 port 62167 connected with 127.0.0.1 port 5001 on 2024-04-29 09:11:05.291515 (Pacific Daylight Time)
[ ID] Interval Transfer Bandwidth Write/Err
[ 1] 0.00-1.00 sec 5.03 GBytes 43.2 Gbits/sec 41242/0
[ 2] 0.00-1.00 sec 5.19 GBytes 44.6 Gbits/sec 42547/0
[SUM-cnt] Interval Transfer Bandwidth Write/Err
[SUM-2] 0.00-1.00 sec 10.2 GBytes 87.9 Gbits/sec 83789/0
[ 1] 1.00-2.00 sec 5.20 GBytes 44.7 Gbits/sec 42631/0
[ 2] 1.00-2.00 sec 5.31 GBytes 45.6 Gbits/sec 43476/0
[SUM-2] 1.00-2.00 sec 10.5 GBytes 90.3 Gbits/sec 86107/0
[ 1] 2.00-3.00 sec 5.16 GBytes 44.4 Gbits/sec 42298/0
[ 2] 2.00-3.00 sec 5.30 GBytes 45.5 Gbits/sec 43429/0
[SUM-2] 2.00-3.00 sec 10.5 GBytes 89.9 Gbits/sec 85727/0
[ 1] 3.00-4.00 sec 5.05 GBytes 43.4 Gbits/sec 41407/0
[ 2] 3.00-4.00 sec 5.19 GBytes 44.6 Gbits/sec 42548/0
[SUM-2] 3.00-4.00 sec 10.2 GBytes 88.0 Gbits/sec 83955/0
[ 1] 4.00-5.00 sec 5.07 GBytes 43.5 Gbits/sec 41494/0
[ 2] 4.00-5.00 sec 5.19 GBytes 44.6 Gbits/sec 42495/0
[SUM-2] 4.00-5.00 sec 10.3 GBytes 88.1 Gbits/sec 83989/0
[ 1] 5.00-6.00 sec 5.16 GBytes 44.3 Gbits/sec 42248/0
[ 2] 5.00-6.00 sec 5.30 GBytes 45.6 Gbits/sec 43456/0
[SUM-2] 5.00-6.00 sec 10.5 GBytes 89.9 Gbits/sec 85704/0
[ 1] 6.00-7.00 sec 5.05 GBytes 43.4 Gbits/sec 41345/0
[ 2] 6.00-7.00 sec 5.18 GBytes 44.5 Gbits/sec 42428/0
[SUM-2] 6.00-7.00 sec 10.2 GBytes 87.8 Gbits/sec 83773/0
[ 1] 7.00-8.00 sec 4.65 GBytes 39.9 Gbits/sec 38066/0
[ 2] 7.00-8.00 sec 4.32 GBytes 37.1 Gbits/sec 35383/0
[SUM-2] 7.00-8.00 sec 8.97 GBytes 77.0 Gbits/sec 73449/0
[ 1] 8.00-9.00 sec 4.78 GBytes 41.1 Gbits/sec 39154/0
[ 2] 8.00-9.00 sec 4.80 GBytes 41.2 Gbits/sec 39315/0
[SUM-2] 8.00-9.00 sec 9.58 GBytes 82.3 Gbits/sec 78469/0
[ 1] 9.00-10.00 sec 5.10 GBytes 43.8 Gbits/sec 41818/0
[ 2] 9.00-10.00 sec 5.24 GBytes 45.0 Gbits/sec 42946/0
[SUM-2] 9.00-10.00 sec 10.3 GBytes 88.9 Gbits/sec 84764/0
[ 1] 0.00-10.03 sec 50.3 GBytes 43.0 Gbits/sec 411704/0
[ 2] 0.00-10.04 sec 51.0 GBytes 43.7 Gbits/sec 418025/0
[SUM-2] 0.00-10.00 sec 101 GBytes 87.0 Gbits/sec 829729/0
