<p>iperf 3.1.3 ์˜ค๋ฅ˜: ๋ฆฌ์†Œ์Šค๋ฅผ ์ผ์‹œ์ ์œผ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.</p>

์— ๋งŒ๋“  2017๋…„ 03์›” 02์ผ  ยท  5์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: esnet/iperf

iperf๋ฅผ Qt ๊ธฐ๋ฐ˜ GUI์™€ ํ†ตํ•ฉํ•˜๋ ค๊ณ  ํ•˜๋Š”๋ฐ clicked button ์ด๋ฒคํŠธ์— ์˜ํ•ด ํ˜ธ์ถœ๋œ ๋ฉ”์„œ๋“œ๋ฅผ ํ†ตํ•ด iperf_run_client()๋ฅผ ์‹คํ–‰ํ•˜๋ฉด ์š”์•ฝ ๋ฐ์ดํ„ฐ ์งํ›„ _"Resource ์ผ์‹œ์ ์œผ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์—†์Œ"_ ์˜ค๋ฅ˜๊ฐ€ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.

---------------------------------------------------
Server listening on 1234
---------------------------------------------------

Accepted connection from 127.0.0.1, port 55132
[  5] local 127.0.0.1 port 1234 connected to 127.0.0.1 port 55134
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-1.00   sec  2.16 GBytes  18.6 Gbits/sec                  (omitted)
[  5]   1.00-2.00   sec  2.23 GBytes  19.2 Gbits/sec                  (omitted)
[  5]   2.00-3.00   sec  2.37 GBytes  20.4 Gbits/sec                  (omitted)
[  5]   0.00-1.00   sec  2.25 GBytes  19.4 Gbits/sec                  
[  5]   1.00-2.00   sec  2.23 GBytes  19.1 Gbits/sec                  
[  5]   2.00-3.00   sec  2.24 GBytes  19.3 Gbits/sec                  
[  5]   3.00-4.00   sec  2.33 GBytes  20.0 Gbits/sec                  
[  5]   4.00-5.00   sec  2.28 GBytes  19.6 Gbits/sec                  
[  5]   5.00-5.04   sec  99.4 MBytes  20.5 Gbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-5.04   sec  0.00 Bytes  0.00 bits/sec                  sender
[  5]   0.00-5.04   sec  11.4 GBytes  19.5 Gbits/sec                  receiver
iperf3: error - unable to receive results: Resource temporarily unavailable

์ด ๋ฌธ์ œ์˜ ๊ฐ€๋Šฅํ•œ ์›์ธ์€ ๋ฌด์—‡์ž…๋‹ˆ๊นŒ? Qt์˜ ์‹ ํ˜ธ/์Šฌ๋กฏ ๋ฉ”์ปค๋‹ˆ์ฆ˜๊ณผ ๊ด€๋ จ๋œ ๊ฒƒ์œผ๋กœ ์ƒ์„ฑ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๊นŒ?

๋‹ต๋ณ€์— ๋ฏธ๋ฆฌ ๊ฐ์‚ฌ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

question

๋ชจ๋“  5 ๋Œ“๊ธ€

๋‚˜๋Š” ์ „ํ˜€ ๋ชจ๋ฅธ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ปค๋ฎค๋‹ˆํ‹ฐ์˜ ๋ˆ„๊ตฐ๊ฐ€๊ฐ€ ์•„์ด๋””์–ด๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” ๊ฒฝ์šฐ๋ฅผ ๋Œ€๋น„ํ•˜์—ฌ ์ด ๋ฌธ์ œ๋ฅผ ์—ด์–ด ๋‘ก๋‹ˆ๋‹ค.

๋‹น์‹ ์˜ ๋‹ต๋ณ€์— ๊ฐ์‚ฌ๋“œ๋ฆฝ๋‹ˆ๋‹ค.
"์ˆœ์ˆ˜ํ•œ" C++ ํ”„๋กœ์ ํŠธ์— ๋™์ผํ•œ ์ฝ”๋“œ๋ฅผ ๋„ฃ์–ด ํ•ด๊ฒฐํ•˜๋ ค๊ณ  ์‹œ๋„ํ–ˆ์ง€๋งŒ ๋ฌธ์ œ ์—†์ด ์ž‘๋™ํ–ˆ๊ธฐ ๋•Œ๋ฌธ์— ์ด๊ฒƒ์ด ํ™•์‹คํžˆ Qt ๊ด€๋ จ ๋ฌธ์ œ๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.
์–ด์จŒ๋“  ๋ˆ„๊ตฐ๊ฐ€๊ฐ€ ๋‚˜์™€ ๊ฐ™์€ ๋ฌธ์ œ๋ฅผ ๊ฒช์—ˆ์„ ๊ฒฝ์šฐ๋ฅผ ๋Œ€๋น„ํ•˜์—ฌ์ด ๋ฌธ์ œ๋ฅผ ์—ด์–ด ๋‘๊ฒ ์Šต๋‹ˆ๋‹ค.

์•Œ๊ฒ ์Šต๋‹ˆ๋‹ค. ์ด ๋ฌธ์ œ์— ๋Œ€ํ•ด ๋” ์ด์ƒ ํ•  ์ผ์ด ์—†๊ธฐ ๋•Œ๋ฌธ์— ์ด ๋ฌธ์ œ๋ฅผ ์ข…๋ฃŒํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ์‚ฌ๋žŒ๋“ค์ด ๊ฒ€์ƒ‰ํ•˜๋Š” ๊ฒฝ์šฐ์—๋„ ์—ฌ์ „ํžˆ ํ‘œ์‹œ๋˜์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ์ด์Šˆ ํŠธ๋ž˜์ปค๋Š” ์งˆ๋ฌธ๊ณผ ๋‹ต๋ณ€์˜ ์•„์นด์ด๋ธŒ๊ฐ€ ์•„๋‹ˆ๋ผ ์‹ค์ œ๋กœ iperf3๋ฅผ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•ด ์ƒ๊ฐํ•ด์•ผ ํ•˜๋Š” ๊ฒƒ๋“ค์˜ ๋ชฉ๋ก์ž…๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ–ˆ์Šต๋‹ˆ๋‹ค. ์ œ ๊ฒฝ์šฐ๋Š” iperf ๋ฒ„์ „ ๊ฐ„์˜ ์ฐจ์ด์ ์ด์—ˆ์Šต๋‹ˆ๋‹ค.

์•ˆ๋…•ํ•˜์„ธ์š”,
์—ฌ์ „ํžˆ ์ด ๋ฌธ์ œ๊ฐ€ ํ‘œ์‹œ๋˜๋ฉฐ ์˜ ์–‘์ชฝ์—์„œ ๋™์ผํ•œ ๋ฒ„์ „์„ ์‹คํ–‰ํ•˜๊ณ  ์žˆ๋Š”์ง€ ํ™•์ธํ–ˆ์Šต๋‹ˆ๋‹ค. ์†Œ์Šค ํฌํŠธ๋ฅผ ์„ค์ •ํ•˜๊ณ  ์„ค์ •ํ•  ์ˆ˜ ์žˆ๋„๋ก ์ธํ„ฐํŽ˜์ด์Šค์— ๋ฐ”์ธ๋”ฉํ•˜๋ ค๊ณ  ํ•  ๋•Œ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.
iperf3 -c-i 1 -P 2 -u -b 1M -R -V -t 10 -p-NS--cport

์•„์ดํผํ”„ 3.1.3
ubuntu18.4 4.15.0-38-generic #41-Ubuntu SMP Wed Oct 10 10:59:38 UTC 2018 x86_64
iperf3: ์˜ค๋ฅ˜ - ์„œ๋ฒ„์— ์—ฐ๊ฒฐํ•  ์ˆ˜ ์—†์Œ:

์ด๊ฒƒ์€ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค:
iperf3 -c-i 1 -P 2 -u -b 1M -R -V -t 10 -p
์„œ๋ฒ„๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์‹คํ–‰๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
iperf3 -s -p

iperf3 ๋ฒ„์ „:
์•„์ดํผํ”„ 3.1.3
Linux bench08-pc01.ste.atl.lab.test 4.15.0-38-generic #41-Ubuntu SMP Wed Oct 10 10:59:38 UTC 2018 x86_64
์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์˜ต์…˜ ๊ธฐ๋Šฅ: CPU ์„ ํ˜ธ๋„ ์„ค์ •, IPv6 ํ๋ฆ„ ๋ ˆ์ด๋ธ”, TCP ํ˜ผ์žก ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์„ค์ •, sendfile/zerocopy, ์†Œ์ผ“ ํŽ˜์ด์‹ฑ

๊ฐ์‚ฌ ํ•ด์š”,

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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