From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 4ADB53B29D for ; Wed, 5 Feb 2020 14:19:07 -0500 (EST) Received: by mail-wr1-x432.google.com with SMTP id y17so4166657wrh.5 for ; Wed, 05 Feb 2020 11:19:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:from:date:message-id:subject:to; bh=HJHWo71E5X3yNVeqa7Pv4qHrQfREo87qfGVsycoYHb4=; b=J+0BNeyEvR4ooZA4GPBRP9mP2fIAwvO093lx9a+dFveL3V6gJkmYv2U0niThtAksQ9 sb4+eoihKObSxEWrl0A8PzEuVX5y67RAS+z/IlE+Ta2w/WEWlC2tYxkFbPLktw2Q9E4W orHKR0azuUv9i4nDEbxDQkzk9+QH0jziTQs4Y= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=HJHWo71E5X3yNVeqa7Pv4qHrQfREo87qfGVsycoYHb4=; b=qNegqZn7128PhY/N4h66/505y2nidMFJmAhLeIj7fRJqB9g+u9CB7SOHYzBORkc16q uUw4nnkIrbMM6x1JoQWrUUGS3PbY1MOY+Ol4FmK86C8cv+ZzkeM/1hjyXLHhXMvMIQe/ twVHsZ+yM4o7K3LSPefH6vu48VB+QmAD9b0HoaeDG76w3XTEkzau/QIvc0Ef2IKCVfI4 KGLUiz1tvrGmLG7a4w2gjljpBptSo3c51V4GCmj8dke2sUpIfhGDTCc9s5wwnOKmtO9s /6ffdQAcNQgUHY3zeiH9vQD50W5pyvr+K60YTdPEXf5STOFlYazOKsfhgjVP3sgruJDC Ib7g== X-Gm-Message-State: APjAAAX6k/KqArguKK0cNGaMRaokUEhKTO+do3Sb7BTI2r+SiTTrFMPz 6Pn2oMcQf3HsepPghwVQDk42L/Njc7omjAkzuYdrtQKR X-Google-Smtp-Source: APXvYqwoQYnjXYVgS9tqMIX5LLuuCRJGPnpSXTYso69a0hqobXIhqzDWkylTeKFo1gT68T3DRxQjGpaFhLYA3iwC57k= X-Received: by 2002:adf:a746:: with SMTP id e6mr29891395wrd.329.1580930345392; Wed, 05 Feb 2020 11:19:05 -0800 (PST) MIME-Version: 1.0 From: Bob McMahon Date: Wed, 5 Feb 2020 11:18:51 -0800 Message-ID: Subject: Iperf 2.0.14 --trip-times To: Make-Wifi-fast Content-Type: multipart/alternative; boundary="000000000000a719ce059dd90715" X-List-Received-Date: Wed, 05 Feb 2020 19:19:07 -0000 --000000000000a719ce059dd90715 Content-Type: text/plain; charset="UTF-8" Hi, Some might find the new --trip-times option in iperf 2.0.14 useful. It uses little's law to compute the effective end/end queue size. The calculation is the queue size = send rate * write2read latency. It's under the inP column. Note that the client and server clocks must be synchronized for this option to work. *An example:* [root@localhost iperf2-code]# src/iperf -s -i 1 -w 4M ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 8.00 MByte (WARNING: requested 4.00 MByte) ------------------------------------------------------------ [ 4] local 192.168.1.4 port 5001 connected with 192.168.1.1 port 43158 (WARN: winsize=8.00 MByte req=4.00 MByte) (trip-times) (1580858380.423534) [ ID] Interval Transfer Bandwidth Reads Dist(bin=16.0K) Burst Latency avg/min/max/stdev (cnt/size) inP NetPwr [ 4] 0.00-1.00 sec 38.8 MBytes 326 Mbits/sec 1174 346:223:215:303:74:7:6:0 47.585/ 7.006/119.725/17.335 ms (310/131397) 1.92 MByte 856.01 [ 4] 1.00-2.00 sec 40.9 MBytes 343 Mbits/sec 1234 345:268:214:312:74:12:9:0 47.583/ 7.730/67.730/11.787 ms (328/130858) 1.96 MByte 902.05 [ 4] 2.00-3.00 sec 41.2 MBytes 346 Mbits/sec 1250 380:232:204:324:93:11:5:1 43.227/ 7.440/65.904/13.816 ms (330/131066) 1.78 MByte 1000.57 [ 4] 3.00-4.00 sec 41.3 MBytes 347 Mbits/sec 1249 384:226:218:322:85:8:5:1 44.932/ 6.927/66.840/12.453 ms (330/131310) 1.87 MByte 964.40 [ 4] 4.00-5.00 sec 41.0 MBytes 344 Mbits/sec 1240 344:257:243:296:86:6:7:1 44.778/ 5.779/66.241/13.478 ms (328/131140) 1.83 MByte 960.60 [ 4] 5.00-6.00 sec 41.2 MBytes 345 Mbits/sec 1244 379:228:226:319:72:11:7:2 47.515/ 6.943/66.759/11.371 ms (330/130808) 1.97 MByte 908.49 [ 4] 6.00-7.00 sec 41.4 MBytes 348 Mbits/sec 1250 361:246:236:308:81:12:5:1 46.300/ 5.783/66.702/12.341 ms (331/131264) 1.92 MByte 938.42 [ 4] 7.00-8.00 sec 41.4 MBytes 347 Mbits/sec 1254 366:254:230:293:92:12:7:0 45.072/ 8.689/66.511/12.084 ms (331/131054) 1.86 MByte 962.44 [ 4] 8.00-9.00 sec 41.3 MBytes 346 Mbits/sec 1269 370:263:223:328:76:7:2:0 48.664/12.814/67.439/10.563 ms (330/131136) 2.04 MByte 889.26 [ 4] 9.00-10.00 sec 41.3 MBytes 347 Mbits/sec 1262 386:234:231:310:86:9:6:0 48.086/ 8.675/66.493/11.122 ms (331/130971) 1.91 MByte 901.54 [ 4] 10.00-10.03 sec 937 KBytes 295 Mbits/sec 28 7:6:9:4:2:0:0:0 37.819/21.810/48.450/ 7.850 ms (8/119946) 89.9 MByte 976.33 [ 4] 0.00-10.03 sec 411 MBytes 344 Mbits/sec 12454 3668:2437:2249:3119:821:95:59:6 46.203/48.450/48.450/ 0.000 ms (3287/131072) 1.90 MByte 930.07 [root@localhost iperf2-code]# src/iperf -c 192.168.1.4 -w 4M -i 1 -e --trip-times ------------------------------------------------------------ Client connecting to 192.168.1.4, TCP port 5001 with pid 32598 Write buffer size: 128 KByte TCP window size: 8.00 MByte (WARNING: requested 4.00 MByte) ------------------------------------------------------------ [ 3] local 192.168.1.1 port 43158 connected with 192.168.1.4 port 5001 (WARN: winsize=8.00 MByte req=4.00 MByte) (trip-times) (ct=3.49 ms) [ ID] Interval Transfer Bandwidth Write/Err Rtry Cwnd/RTT NetPwr [ 3] 0.00-1.00 sec 41.0 MBytes 344 Mbits/sec 328/0 0 5179K/26872 us 1599.87 [ 3] 1.00-2.00 sec 40.9 MBytes 343 Mbits/sec 327/0 0 5179K/30661 us 1397.88 [ 3] 2.00-3.00 sec 40.8 MBytes 342 Mbits/sec 326/0 0 5462K/23347 us 1830.19 [ 3] 3.00-4.00 sec 41.8 MBytes 350 Mbits/sec 334/0 0 5462K/20827 us 2101.99 [ 3] 4.00-5.00 sec 40.8 MBytes 342 Mbits/sec 326/0 0 5462K/23358 us 1829.33 [ 3] 5.00-6.00 sec 40.9 MBytes 343 Mbits/sec 327/0 0 5462K/20509 us 2089.84 [ 3] 6.00-7.00 sec 41.5 MBytes 348 Mbits/sec 332/0 0 5462K/19378 us 2245.63 [ 3] 7.00-8.00 sec 42.1 MBytes 353 Mbits/sec 337/0 0 5462K/23068 us 1914.83 [ 3] 8.00-9.00 sec 41.2 MBytes 346 Mbits/sec 330/0 0 5462K/23057 us 1875.95 [ 3] 9.00-10.00 sec 39.9 MBytes 334 Mbits/sec 319/0 0 5462K/6923 us 6039.57 [ 3] 0.00-10.02 sec 411 MBytes 344 Mbits/sec 3288/1 0 NA/0 us 0.00 *Here's an example where the reads are rate limited to congest the end/end pipe* [root@localhost iperf2-code]# src/iperf -s -i 1 -w 4M -b 300m ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 8.00 MByte (WARNING: requested 4.00 MByte) ------------------------------------------------------------ [ 4] local 192.168.1.4 port 5001 connected with 192.168.1.1 port 43162 (WARN: winsize=8.00 MByte req=4.00 MByte) (trip-times) (1580858757.457579) [ ID] Interval Transfer Bandwidth Reads Dist(bin=16.0K) Burst Latency avg/min/max/stdev (cnt/size) inP NetPwr [ 4] 0.00-1.00 sec 35.8 MBytes 300 Mbits/sec 734 178:122:118:149:29:6:4:128 66.196/11.050/127.404/25.372 ms (286/131072) 2.71 MByte 566.29 [ 4] 1.00-2.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 161.396/104.023/187.104/18.337 ms (286/131072) 6.13 MByte 232.27 [ 4] 2.00-3.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 172.448/149.679/187.410/ 8.933 ms (286/131072) 6.11 MByte 217.38 [ 4] 3.00-4.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 170.794/145.354/187.129/ 9.532 ms (286/131072) 6.12 MByte 219.48 [ 4] 4.00-5.00 sec 35.9 MBytes 301 Mbits/sec 287 0:0:0:0:0:0:0:287 167.554/119.285/187.002/12.842 ms (287/131072) 5.97 MByte 224.51 [ 4] 5.00-6.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 168.277/129.686/186.839/11.908 ms (286/131072) 6.07 MByte 222.77 [ 4] 6.00-7.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 164.621/118.836/188.298/14.838 ms (286/131072) 5.73 MByte 227.71 [ 4] 7.00-8.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 166.965/126.764/187.960/13.069 ms (286/131072) 5.94 MByte 224.52 [ 4] 8.00-9.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 169.325/131.557/189.220/11.436 ms (286/131072) 6.11 MByte 221.39 [ 4] 9.00-10.00 sec 35.8 MBytes 300 Mbits/sec 286 0:0:0:0:0:0:0:286 169.883/134.273/188.687/10.671 ms (286/131072) 6.15 MByte 220.66 [ 4] 10.00-10.17 sec 6.12 MBytes 297 Mbits/sec 49 0:0:0:0:0:0:0:49 153.230/121.217/175.104/13.653 ms (49/131072) 5.58 MByte 242.67 [ 4] 0.00-10.17 sec 364 MBytes 300 Mbits/sec 3358 178:122:118:149:29:6:4:2752 157.102/175.104/175.104/ 0.000 ms (2910/131072) 5.72 MByte 238.66 [root@localhost iperf2-code]# src/iperf -c 192.168.1.4 -w 4M -i 1 -e --trip-times ------------------------------------------------------------ Client connecting to 192.168.1.4, TCP port 5001 with pid 32618 Write buffer size: 128 KByte TCP window size: 8.00 MByte (WARNING: requested 4.00 MByte) ------------------------------------------------------------ [ 3] local 192.168.1.1 port 43162 connected with 192.168.1.4 port 5001 (WARN: winsize=8.00 MByte req=4.00 MByte) (trip-times) (ct=3.29 ms) [ ID] Interval Transfer Bandwidth Write/Err Rtry Cwnd/RTT NetPwr [ 3] 0.00-1.00 sec 40.6 MBytes 341 Mbits/sec 325/0 0 4233K/26435 us 1611.44 [ 3] 1.00-2.00 sec 36.5 MBytes 306 Mbits/sec 292/0 0 4233K/15386 us 2487.52 [ 3] 2.00-3.00 sec 36.0 MBytes 302 Mbits/sec 288/0 0 4233K/15064 us 2505.89 [ 3] 3.00-4.00 sec 36.4 MBytes 305 Mbits/sec 291/0 0 4233K/17723 us 2152.12 [ 3] 4.00-5.00 sec 35.0 MBytes 294 Mbits/sec 280/0 0 4233K/15435 us 2377.72 [ 3] 5.00-6.00 sec 36.4 MBytes 305 Mbits/sec 291/0 0 4233K/14964 us 2548.91 [ 3] 6.00-7.00 sec 35.6 MBytes 299 Mbits/sec 285/0 0 4233K/15145 us 2466.52 [ 3] 7.00-8.00 sec 35.1 MBytes 295 Mbits/sec 281/0 0 4233K/16909 us 2178.20 [ 3] 8.00-9.00 sec 35.8 MBytes 300 Mbits/sec 286/0 0 4233K/17094 us 2192.97 [ 3] 9.00-10.00 sec 36.2 MBytes 304 Mbits/sec 290/0 0 4233K/19964 us 1903.97 [ 3] 0.00-10.03 sec 364 MBytes 304 Mbits/sec 2911/1 0 NA/0 us 0.00 Bob --000000000000a719ce059dd90715 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
=
Hi,

Some might find the new --trip-t= imes option in iperf 2.0.14 useful. It uses=C2=A0little's law=C2=A0to compute the effective end/end qu= eue size. The calculation is the queue size =3D send rate * write2read late= ncy. It's under the inP column. Note that the client and server clocks = must be synchronized for this option to work.

An example:

[root@localhost iperf2-code]# src/iperf -s -i 1 -w 4M=
------------------------------------------------------------
Server = listening on TCP port 5001
TCP window size: 8.00 MByte (WARNING: request= ed 4.00 MByte)
---------------------------------------------------------= ---
[ =C2=A04] local 192.168.1.4 port 5001 connected with 192.168.1.1 po= rt 43158 (WARN: winsize=3D8.00 MByte req=3D4.00 MByte) (trip-times) (158085= 8380.423534)
[ ID] Interval =C2=A0 =C2=A0 =C2=A0 =C2=A0Transfer =C2=A0 = =C2=A0Bandwidth =C2=A0 =C2=A0 =C2=A0 Reads =C2=A0 Dist(bin=3D16.0K) =C2=A0 = =C2=A0 Burst Latency avg/min/max/stdev (cnt/size)=C2=A0inP=C2=A0NetPwr
[ =C2=A04] 0.00-1.00 = sec =C2=A038.8 MBytes =C2=A0 326 Mbits/sec =C2=A01174 =C2=A0 =C2=A0346:223:= 215:303:74:7:6:0 =C2=A0 =C2=A047.585/ 7.006/119.725/17.335 ms (310/131397)= =C2=A01.92 MByte=C2= =A0856.01
[ =C2=A04] 1.00-2.00 sec =C2=A040.9 MBytes =C2=A0 343 Mbits/se= c =C2=A01234 =C2=A0 =C2=A0345:268:214:312:74:12:9:0 =C2=A0 =C2=A047.583/ 7.= 730/67.730/11.787 ms (328/130858) 1.96 MByte 902.05
[ =C2=A04] 2.00-3.00= sec =C2=A041.2 MBytes =C2=A0 346 Mbits/sec =C2=A01250 =C2=A0 =C2=A0380:232= :204:324:93:11:5:1 =C2=A0 =C2=A043.227/ 7.440/65.904/13.816 ms (330/131066)= 1.78 MByte 1000.57
[ =C2=A04] 3.00-4.00 sec =C2=A041.3 MBytes =C2=A0 34= 7 Mbits/sec =C2=A01249 =C2=A0 =C2=A0384:226:218:322:85:8:5:1 =C2=A0 =C2=A04= 4.932/ 6.927/66.840/12.453 ms (330/131310) 1.87 MByte 964.40
[ =C2=A04] = 4.00-5.00 sec =C2=A041.0 MBytes =C2=A0 344 Mbits/sec =C2=A01240 =C2=A0 =C2= =A0344:257:243:296:86:6:7:1 =C2=A0 =C2=A044.778/ 5.779/66.241/13.478 ms (32= 8/131140) 1.83 MByte 960.60
[ =C2=A04] 5.00-6.00 sec =C2=A041.2 MBytes = =C2=A0 345 Mbits/sec =C2=A01244 =C2=A0 =C2=A0379:228:226:319:72:11:7:2 =C2= =A0 =C2=A047.515/ 6.943/66.759/11.371 ms (330/130808) 1.97 MByte 908.49
= [ =C2=A04] 6.00-7.00 sec =C2=A041.4 MBytes =C2=A0 348 Mbits/sec =C2=A01250 = =C2=A0 =C2=A0361:246:236:308:81:12:5:1 =C2=A0 =C2=A046.300/ 5.783/66.702/12= .341 ms (331/131264) 1.92 MByte 938.42
[ =C2=A04] 7.00-8.00 sec =C2=A041= .4 MBytes =C2=A0 347 Mbits/sec =C2=A01254 =C2=A0 =C2=A0366:254:230:293:92:1= 2:7:0 =C2=A0 =C2=A045.072/ 8.689/66.511/12.084 ms (331/131054) 1.86 MByte 9= 62.44
[ =C2=A04] 8.00-9.00 sec =C2=A041.3 MBytes =C2=A0 346 Mbits/sec = =C2=A01269 =C2=A0 =C2=A0370:263:223:328:76:7:2:0 =C2=A0 =C2=A048.664/12.814= /67.439/10.563 ms (330/131136) 2.04 MByte 889.26
[ =C2=A04] 9.00-10.00 s= ec =C2=A041.3 MBytes =C2=A0 347 Mbits/sec =C2=A01262 =C2=A0 =C2=A0386:234:2= 31:310:86:9:6:0 =C2=A0 =C2=A048.086/ 8.675/66.493/11.122 ms (331/130971) 1.= 91 MByte 901.54
[ =C2=A04] 10.00-10.03 sec =C2=A0 937 KBytes =C2=A0 295 = Mbits/sec =C2=A028 =C2=A0 =C2=A07:6:9:4:2:0:0:0 =C2=A0 =C2=A037.819/21.810/= 48.450/ 7.850 ms (8/119946) 89.9 MByte 976.33
[ =C2=A04] 0.00-10.03 sec = =C2=A0 411 MBytes =C2=A0 344 Mbits/sec =C2=A012454 =C2=A0 =C2=A03668:2437:2= 249:3119:821:95:59:6 =C2=A0 =C2=A046.203/48.450/48.450/ 0.000 ms (3287/1310= 72) 1.90 MByte 930.07


[root@localhost iperf2-code]# src/iperf -c= 192.168.1.4 -w 4M -i 1 -e=C2=A0--trip-times
-----------------------------------------------= -------------
Client connecting to 192.168.1.4, TCP port 5001 with pid 3= 2598
Write buffer size: =C2=A0128 KByte
TCP window size: 8.00 MByte (= WARNING: requested 4.00 MByte)
-----------------------------------------= -------------------
[ =C2=A03] local 192.168.1.1 port 43158 connected wi= th 192.168.1.4 port 5001 (WARN: winsize=3D8.00 MByte req=3D4.00 MByte) (tri= p-times) (ct=3D3.49 ms)
[ ID] Interval =C2=A0 =C2=A0 =C2=A0 =C2=A0Transf= er =C2=A0 =C2=A0Bandwidth =C2=A0 =C2=A0 =C2=A0 Write/Err =C2=A0Rtry =C2=A0 = =C2=A0 Cwnd/RTT =C2=A0 =C2=A0 =C2=A0 =C2=A0NetPwr
[ =C2=A03] 0.00-1.00 s= ec =C2=A041.0 MBytes =C2=A0 344 Mbits/sec =C2=A0328/0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A00 =C2=A0 =C2=A0 5179K/26872 us =C2=A01599.87
[ =C2=A03] 1.0= 0-2.00 sec =C2=A040.9 MBytes =C2=A0 343 Mbits/sec =C2=A0327/0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 5179K/30661 us =C2=A01397.88
[ =C2= =A03] 2.00-3.00 sec =C2=A040.8 MBytes =C2=A0 342 Mbits/sec =C2=A0326/0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 5462K/23347 us =C2=A01830.19=
[ =C2=A03] 3.00-4.00 sec =C2=A041.8 MBytes =C2=A0 350 Mbits/sec =C2=A03= 34/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 5462K/20827 us =C2= =A02101.99
[ =C2=A03] 4.00-5.00 sec =C2=A040.8 MBytes =C2=A0 342 Mbits/s= ec =C2=A0326/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 5462K/2335= 8 us =C2=A01829.33
[ =C2=A03] 5.00-6.00 sec =C2=A040.9 MBytes =C2=A0 343= Mbits/sec =C2=A0327/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 54= 62K/20509 us =C2=A02089.84
[ =C2=A03] 6.00-7.00 sec =C2=A041.5 MBytes = =C2=A0 348 Mbits/sec =C2=A0332/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0= =C2=A0 5462K/19378 us =C2=A02245.63
[ =C2=A03] 7.00-8.00 sec =C2=A042.1= MBytes =C2=A0 353 Mbits/sec =C2=A0337/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= 0 =C2=A0 =C2=A0 5462K/23068 us =C2=A01914.83
[ =C2=A03] 8.00-9.00 sec = =C2=A041.2 MBytes =C2=A0 346 Mbits/sec =C2=A0330/0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A00 =C2=A0 =C2=A0 5462K/23057 us =C2=A01875.95
[ =C2=A03] 9.00-1= 0.00 sec =C2=A039.9 MBytes =C2=A0 334 Mbits/sec =C2=A0319/0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 5462K/6923 us =C2=A06039.57
[ =C2=A0= 3] 0.00-10.02 sec =C2=A0 411 MBytes =C2=A0 344 Mbits/sec =C2=A03288/1 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 =C2=A0 NA/0 us =C2=A00.00
Here's an example where the reads are rate limited to congest t= he end/end pipe

[root@localhost iperf2-code]# src/iperf -= s -i 1 -w 4M -b 300m
---------------------------------------------------= ---------
Server listening on TCP port 5001
TCP window size: 8.00 MBy= te (WARNING: requested 4.00 MByte)
-------------------------------------= -----------------------
[ =C2=A04] local 192.168.1.4 port 5001 connected= with 192.168.1.1 port 43162 (WARN: winsize=3D8.00 MByte req=3D4.00 MByte) = (trip-times) (1580858757.457579)
[ ID] Interval =C2=A0 =C2=A0 =C2=A0 =C2= =A0Transfer =C2=A0 =C2=A0Bandwidth =C2=A0 =C2=A0 =C2=A0 Reads =C2=A0 Dist(b= in=3D16.0K) =C2=A0 =C2=A0 Burst Latency avg/min/max/stdev (cnt/size)=C2=A0inP=C2=A0NetPwr
[ = =C2=A04] 0.00-1.00 sec =C2=A035.8 MBytes =C2=A0 300 Mbits/sec =C2=A0734 =C2= =A0 =C2=A0178:122:118:149:29:6:4:128 =C2=A0 =C2=A066.196/11.050/127.404/25.= 372 ms (286/131072) 2.71 MByte 566.29
[ =C2=A04] 1.00-2.00 sec =C2=A035.= 8 MBytes =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0 =C2=A00:0:0:0:0:0:0:286 =C2= =A0 =C2=A0161.396/104.023/187.104/18.337 ms (286/131072)=C2=A06.13 MByte=C2=A0232.27
[ =C2= =A04] 2.00-3.00 sec =C2=A035.8 MBytes =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0= =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0172.448/149.679/187.410/ 8.933 ms (28= 6/131072) 6.11 MByte 217.38
[ =C2=A04] 3.00-4.00 sec =C2=A035.8 MBytes = =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0 =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0= 170.794/145.354/187.129/ 9.532 ms (286/131072) 6.12 MByte 219.48
[ =C2= =A04] 4.00-5.00 sec =C2=A035.9 MBytes =C2=A0 301 Mbits/sec =C2=A0287 =C2=A0= =C2=A00:0:0:0:0:0:0:287 =C2=A0 =C2=A0167.554/119.285/187.002/12.842 ms (28= 7/131072) 5.97 MByte 224.51
[ =C2=A04] 5.00-6.00 sec =C2=A035.8 MBytes = =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0 =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0= 168.277/129.686/186.839/11.908 ms (286/131072) 6.07 MByte 222.77
[ =C2= =A04] 6.00-7.00 sec =C2=A035.8 MBytes =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0= =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0164.621/118.836/188.298/14.838 ms (28= 6/131072) 5.73 MByte 227.71
[ =C2=A04] 7.00-8.00 sec =C2=A035.8 MBytes = =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0 =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0= 166.965/126.764/187.960/13.069 ms (286/131072) 5.94 MByte 224.52
[ =C2= =A04] 8.00-9.00 sec =C2=A035.8 MBytes =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0= =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0169.325/131.557/189.220/11.436 ms (28= 6/131072) 6.11 MByte 221.39
[ =C2=A04] 9.00-10.00 sec =C2=A035.8 MBytes = =C2=A0 300 Mbits/sec =C2=A0286 =C2=A0 =C2=A00:0:0:0:0:0:0:286 =C2=A0 =C2=A0= 169.883/134.273/188.687/10.671 ms (286/131072) 6.15 MByte 220.66
[ =C2= =A04] 10.00-10.17 sec =C2=A06.12 MBytes =C2=A0 297 Mbits/sec =C2=A049 =C2= =A0 =C2=A00:0:0:0:0:0:0:49 =C2=A0 =C2=A0153.230/121.217/175.104/13.653 ms (= 49/131072) 5.58 MByte 242.67
[ =C2=A04] 0.00-10.17 sec =C2=A0 364 MBytes= =C2=A0 300 Mbits/sec =C2=A03358 =C2=A0 =C2=A0178:122:118:149:29:6:4:2752 = =C2=A0 =C2=A0157.102/175.104/175.104/ 0.000 ms (2910/131072) 5.72 MByte 238= .66

[root@localhost iperf2-code]# src/iperf -c 192.168.1.4 -w= 4M -i 1 -e --trip-times
-----------------------------------------------= -------------
Client connecting to 192.168.1.4, TCP port 5001 with pid 3= 2618
Write buffer size: =C2=A0128 KByte
TCP window size: 8.00 MByte (= WARNING: requested 4.00 MByte)
-----------------------------------------= -------------------
[ =C2=A03] local 192.168.1.1 port 43162 connected wi= th 192.168.1.4 port 5001 (WARN: winsize=3D8.00 MByte req=3D4.00 MByte) (tri= p-times) (ct=3D3.29 ms)
[ ID] Interval =C2=A0 =C2=A0 =C2=A0 =C2=A0Transf= er =C2=A0 =C2=A0Bandwidth =C2=A0 =C2=A0 =C2=A0 Write/Err =C2=A0Rtry =C2=A0 = =C2=A0 Cwnd/RTT =C2=A0 =C2=A0 =C2=A0 =C2=A0NetPwr
[ =C2=A03] 0.00-1.00 s= ec =C2=A040.6 MBytes =C2=A0 341 Mbits/sec =C2=A0325/0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/26435 us =C2=A01611.44
[ =C2=A03] 1.0= 0-2.00 sec =C2=A036.5 MBytes =C2=A0 306 Mbits/sec =C2=A0292/0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/15386 us =C2=A02487.52
[ =C2= =A03] 2.00-3.00 sec =C2=A036.0 MBytes =C2=A0 302 Mbits/sec =C2=A0288/0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/15064 us =C2=A02505.89=
[ =C2=A03] 3.00-4.00 sec =C2=A036.4 MBytes =C2=A0 305 Mbits/sec =C2=A02= 91/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/17723 us =C2= =A02152.12
[ =C2=A03] 4.00-5.00 sec =C2=A035.0 MBytes =C2=A0 294 Mbits/s= ec =C2=A0280/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/1543= 5 us =C2=A02377.72
[ =C2=A03] 5.00-6.00 sec =C2=A036.4 MBytes =C2=A0 305= Mbits/sec =C2=A0291/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 42= 33K/14964 us =C2=A02548.91
[ =C2=A03] 6.00-7.00 sec =C2=A035.6 MBytes = =C2=A0 299 Mbits/sec =C2=A0285/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0= =C2=A0 4233K/15145 us =C2=A02466.52
[ =C2=A03] 7.00-8.00 sec =C2=A035.1= MBytes =C2=A0 295 Mbits/sec =C2=A0281/0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= 0 =C2=A0 =C2=A0 4233K/16909 us =C2=A02178.20
[ =C2=A03] 8.00-9.00 sec = =C2=A035.8 MBytes =C2=A0 300 Mbits/sec =C2=A0286/0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A00 =C2=A0 =C2=A0 4233K/17094 us =C2=A02192.97
[ =C2=A03] 9.00-1= 0.00 sec =C2=A036.2 MBytes =C2=A0 304 Mbits/sec =C2=A0290/0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 4233K/19964 us =C2=A01903.97
[ =C2= =A03] 0.00-10.03 sec =C2=A0 364 MBytes =C2=A0 304 Mbits/sec =C2=A02911/1 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 =C2=A0 NA/0 us =C2=A00.00=

Bob

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