Hello ,
I us qperf tool test delay of network card , result is 55us ,
The theoretical velocity should be 19,000, and the actual velocity is 7,800.
What are the reasons for the difference?
tcp_bw:
bw = 2.02 MB/sec
msg_size = 1 bytes
tcp_bw:
bw = 4.52 MB/sec
msg_size = 2 bytes
tcp_bw:
bw = 8.8 MB/sec
msg_size = 4 bytes
tcp_bw:
bw = 17.4 MB/sec
msg_size = 8 bytes
tcp_bw:
bw = 33.1 MB/sec
msg_size = 16 bytes
tcp_bw:
bw = 62.5 MB/sec
msg_size = 32 bytes
tcp_bw:
bw = 116 MB/sec
msg_size = 64 bytes
tcp_lat:
latency = 56.3 us
msg_size = 1 bytes
tcp_lat:
latency = 55.5 us
msg_size = 2 bytes
tcp_lat:
latency = 54.9 us
msg_size = 4 bytes
tcp_lat:
latency = 55.6 us
msg_size = 8 bytes
tcp_lat:
latency = 55.4 us
msg_size = 16 bytes
tcp_lat:
latency = 55.4 us
msg_size = 32 bytes
tcp_lat:
latency = 55.7 us
msg_size = 64 bytes
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Best regards,
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