[Rpm] RPM test / checkNetworkQuality.sh script

Tue Jul 13 14:53:03 EDT 2021

Hello Rich,

On 07/10/21 - 17:14, Rich Brown via Rpm wrote:
> I'm so glad to see this mailing list. I started to play with the RPM test, and now I know where I can send feedback.

please note that this mailing-list is not an "official" place to provide
feedback on Apple's "networkQuality" tool. The proper channel for that is
the Apple Feedback Assistant.

> I recently installed Monterey b2 on a Parallels Desktop VM on macOS 10.15.7 on a 2019 MBP. I have several observations/requests:
> 
> 1. I felt the urge to include identifying information along with the networkQuality program's output. I wrote a script that includes a date/time stamp plus a text parameter to identify the test. (Prior "art" - my coffee-shop-bloat-test.sh at https://github.com/richb-hanover/coffee-shop-bloat-test.) Here's the checkNetworkQuality.sh script:
> 
> ========
> #/bin/bash
> # checkNetworkQuality.sh - display RPMs for this network
> # Parameter is a user-entered description for the test condition/location/etc.
> 
> echo `date`: $1
> /usr/bin/networkQuality -v
> ========
> 
> 2. Feature Requests: From this experience, I would like to see /usr/bin/networkQuality enhanced to (always?) display the date/time of the run, and to include an optional parameter for a test name/information. These parameters should also be included as new properties of the "-c" output. In addition, it might be good to include the build number in the output 

Let me see what can be done here...

> 3. I ran the test several times on my connection through an IQrouter v2, with 25/25 mbps fiber optic service. I notice significant variance in the RPM numbers, and do not believe there was any other significant traffic at the time. Is this variance expected?

No, it is not expected. Please collect the RPM-numbers, pcaps and log-output
from the command "log stream --info --debug --style compact --process networkQuality"

> 4. I do not know what happened to the network at 12:06:56 EDT (see below). It obviously recovered 15 seconds later...

When you hit something like that, you can always run "sysdiagnose"
after-the-fact and share the resulting archive with me or via Apple Feedback
Assistant.

Cheers,
Christoph

> 
> Thanks for listening!
> 
> Rich
> 
> 
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM On"
> Thu Jul 8 11:54:43 EDT 2021 SQM On
> ==== SUMMARY ====
> Upload capacity: 21.601 Mbps
> Download capacity: 22.342 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: Medium (936 RPM)
> Base RTT: 29
> richb at Mac ~ % nano checkNetworkQuality.sh
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM On"
> Thu Jul 8 11:55:11 EDT 2021: SQM On
> ==== SUMMARY ====
> Upload capacity: 22.279 Mbps
> Download capacity: 23.015 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1299 RPM)
> Base RTT: 21
> richb at Mac ~ % /usr/bin/networkQuality -c
> 
> {
>   "lud_self_ul_h2" : [
>     50.168037414550781,
>     79.007026672363281,
>     34.090042114257812,
>     60.513019561767578,
>     149.68597412109375,
>     160.39801025390625,
>     194.803955078125,
>     194.86808776855469,
>     331.38299560546875
>   ],
>   "responsiveness" : 1246,
>   "ul_throughput" : 22345152,
>   "lud_foreign_tcp_handshake_443" : [
>     27,
>     31,
>     31,
>     27,
>     29,
>     29,
>     29,
>     29
>   ],
>   "dl_flows" : 12,
>   "ul_flows" : 12,
>   "dl_throughput" : 22535718,
>   "lud_foreign_h2_req_resp" : [
>     46,
>     61,
>     51,
>     52,
>     53,
>     61,
>     117,
>     97
>   ]
> }
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM On"
> Thu Jul 8 12:03:49 EDT 2021: SQM On
> ==== SUMMARY ====
> Upload capacity: 21.356 Mbps
> Download capacity: 22.686 Mbps
> Upload flows: 12
> Download flows: 20
> Responsiveness: High (1391 RPM)
> Base RTT: 18
> richb at Mac ~ % sh checkNetworkQuality.sh
> Thu Jul 8 12:04:34 EDT 2021:
> ==== SUMMARY ====
> Upload capacity: 22.430 Mbps
> Download capacity: 21.363 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1592 RPM)
> Base RTT: 27
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:05:02 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 22.672 Mbps
> Download capacity: 21.199 Mbps
> Upload flows: 16
> Download flows: 20
> Responsiveness: High (1028 RPM)
> Base RTT: 16
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:06:29 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 22.240 Mbps
> Download capacity: 22.584 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1516 RPM)
> Base RTT: 16
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:06:42 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 22.405 Mbps
> Download capacity: 21.679 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: Medium (924 RPM)
> Base RTT: 21
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:06:56 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 0.000 bps
> Download capacity: 0.000 bps
> Upload flows: 0
> Download flows: 0
> Responsiveness: Low (0 RPM)
> Base RTT: 23
> Error: Error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost." UserInfo={NSLocalizedDescription=The network connection was lost., NSErrorFailingURLStringKey=https://mensura.cdn-apple.com/api/v1/seed/large, NSErrorFailingURLKey=https://mensura.cdn-apple.com/api/v1/seed/large, _NSURLErrorRelatedURLSessionTaskErrorKey=(
>     "LocalDataTask <E64FFF59-8A21-40A7-A841-057A05435739>.<1>"
> ), _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <E64FFF59-8A21-40A7-A841-057A05435739>.<1>, NSUnderlyingError=0x600001c35f80 {Error Domain=kCFErrorDomainCFNetwork Code=-1005 "(null)" UserInfo={NSErrorPeerAddressKey=<CFData 0x60000316cb90 [0x7ff85055bd20]>{length = 16, capacity = 16, bytes = 0x100201bb11fd0f0f0000000000000000}}}}
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:07:16 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 21.850 Mbps
> Download capacity: 22.660 Mbps
> Upload flows: 12
> Download flows: 20
> Responsiveness: Medium (873 RPM)
> Base RTT: 21
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:07:38 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 21.991 Mbps
> Download capacity: 22.442 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1212 RPM)
> Base RTT: 16
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:07:52 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 21.988 Mbps
> Download capacity: 22.328 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1278 RPM)
> Base RTT: 16
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:08:10 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 22.292 Mbps
> Download capacity: 22.615 Mbps
> Upload flows: 12
> Download flows: 20
> Responsiveness: High (1456 RPM)
> Base RTT: 14
> richb at Mac ~ % sh checkNetworkQuality.sh "SQM Enabled"
> Thu Jul 8 12:08:39 EDT 2021: SQM Enabled
> ==== SUMMARY ====
> Upload capacity: 21.950 Mbps
> Download capacity: 22.231 Mbps
> Upload flows: 12
> Download flows: 12
> Responsiveness: High (1329 RPM)
> Base RTT: 16
> richb at Mac ~ %
> _______________________________________________
> Rpm mailing list
> Rpm at lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/rpm