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RE: [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips

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> -----Original Message-----
> From: Toke Høiland-Jørgensen <toke@xxxxxxx>
> Sent: Monday, August 13, 2018 7:18 PM
> To: Wen Gong <wgong@xxxxxxxxxxxxxxxx>; Wen Gong
> <wgong@xxxxxxxxxxxxxx>; ath10k@xxxxxxxxxxxxxxxxxxx;
> johannes@xxxxxxxxxxxxxxxx
> Cc: linux-wireless@xxxxxxxxxxxxxxx
> Subject: RE: [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi
> chips
> 
> Wen Gong <wgong@xxxxxxxxxxxxxxxx> writes:
> 
> > Hi Toke,
> >
> > I have tested with your method for shift 6/8/10/7 all twice time in
> > open air environment.
> 
> Great, thanks!
> 
> > Shift 6:
> > wgong@wgong-Latitude-E5440-1:~/flent$ flent -H 192.168.1.7 -t
> > "sk_pacing_shift6" tcp_nup --test-parameter upload_streams=1
> 
> Just to be sure: You are running this on your laptop? And that laptop has the
> ath10k and the modified kernel you are testing? Is 192.168.1.7 the AP or
> another device?
Hi Toke,
Yes, I run on my laptop(Dell LATITUDE E5440 + QCA6174 PCI wireless card) in open air environment,
Kernel is 4.18.0-rc2-wt-ath+ #2 SMP which is built myself.
The mac80211.ko/ath10k is built with the 2 patches.
192.168.1.7 is another device(PC installed with 4.4.0-116-generic #140~14.04.1-Ubuntu)
> 
> I'd like to see what happens when the link is fully saturated my multiple
> streams as well. Could you repeat the tests with upload_streams=5, please?
> And if you could share the .flent.gz files (upload them somewhere, or email
> me off-list), that would be useful as well :)

Test result with upload_streams=5:

sk_pacing_shift6:
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift6" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T105332.356811.sk_pacing_shift6.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift6' (at 2018-08-14 02:53:32.356811):

                           avg       median          # data pts
 Ping (ms) ICMP :        20.46        13.85 ms              350
 TCP upload avg :        66.30        68.71 Mbits/s         301
 TCP upload sum :       331.49       343.55 Mbits/s         301
 TCP upload::1  :        60.80        64.65 Mbits/s         202
 TCP upload::2  :        77.72        82.89 Mbits/s         211
 TCP upload::3  :        60.52        56.09 Mbits/s         202
 TCP upload::4  :        67.39        73.56 Mbits/s         204
 TCP upload::5  :        65.06        71.97 Mbits/s         201
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift6" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T105554.583603.sk_pacing_shift6.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift6' (at 2018-08-14 02:55:54.583603):

                           avg       median          # data pts
 Ping (ms) ICMP :        20.86        13.80 ms              350
 TCP upload avg :        75.88        83.17 Mbits/s         301
 TCP upload sum :       379.42       415.84 Mbits/s         301
 TCP upload::1  :        82.07        90.73 Mbits/s         225
 TCP upload::2  :        74.08        78.29 Mbits/s         204
 TCP upload::3  :        70.44        75.65 Mbits/s         217
 TCP upload::4  :        82.70        92.86 Mbits/s         223
 TCP upload::5  :        70.13        76.87 Mbits/s         210

sk_pacing_shift7:
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift7" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T105759.169367.sk_pacing_shift7.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift7' (at 2018-08-14 02:57:59.169367):

                           avg       median          # data pts
 Ping (ms) ICMP :        24.66        15.55 ms              350
 TCP upload avg :        65.33        72.83 Mbits/s         301
 TCP upload sum :       326.67       363.10 Mbits/s         301
 TCP upload::1  :        77.60        92.93 Mbits/s         214
 TCP upload::2  :        67.22        75.95 Mbits/s         213
 TCP upload::3  :        65.81        74.54 Mbits/s         205
 TCP upload::4  :        63.06        70.37 Mbits/s         207
 TCP upload::5  :        52.98        55.78 Mbits/s         198
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift7" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T105923.620572.sk_pacing_shift7.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift7' (at 2018-08-14 02:59:23.620572):

                           avg       median          # data pts
 Ping (ms) ICMP :        25.03        14.25 ms              350
 TCP upload avg :        74.35        85.64 Mbits/s         297
 TCP upload sum :       371.77       428.19 Mbits/s         297
 TCP upload::1  :        74.12        82.55 Mbits/s         216
 TCP upload::2  :        67.78        71.87 Mbits/s         208
 TCP upload::3  :        82.40        94.72 Mbits/s         210
 TCP upload::4  :        70.77        82.43 Mbits/s         206
 TCP upload::5  :        76.70        88.62 Mbits/s         210

sk_pacing_shift8:
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift8" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T110334.670845.sk_pacing_shift8.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift8' (at 2018-08-14 03:03:34.670845):

                           avg       median          # data pts
 Ping (ms) ICMP :        25.03        19.50 ms              350
 TCP upload avg :        58.11        59.70 Mbits/s         301
 TCP upload sum :       290.53       298.51 Mbits/s         301
 TCP upload::1  :        51.37        51.74 Mbits/s         197
 TCP upload::2  :        42.02        43.66 Mbits/s         192
 TCP upload::3  :        61.17        62.33 Mbits/s         200
 TCP upload::4  :        66.11        70.31 Mbits/s         198
 TCP upload::5  :        69.86        76.31 Mbits/s         202
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift8" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T110557.587769.sk_pacing_shift8.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift8' (at 2018-08-14 03:05:57.587769):

                           avg       median          # data pts
 Ping (ms) ICMP :        21.50        13.05 ms              350
 TCP upload avg :        61.59        62.00 Mbits/s         301
 TCP upload sum :       307.93       310.01 Mbits/s         301
 TCP upload::1  :        69.70        76.22 Mbits/s         210
 TCP upload::2  :        68.51        74.88 Mbits/s         207
 TCP upload::3  :        71.06        77.57 Mbits/s         200
 TCP upload::4  :        47.08        51.42 Mbits/s         196
 TCP upload::5  :        51.58        51.98 Mbits/s         203

sk_pacing_shift10:
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift10" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T110814.434543.sk_pacing_shift10.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift10' (at 2018-08-14 03:08:14.434543):

                           avg       median          # data pts
 Ping (ms) ICMP :        31.57        19.35 ms              350
 TCP upload avg :        56.61        62.61 Mbits/s         301
 TCP upload sum :       283.07       313.07 Mbits/s         301
 TCP upload::1  :        39.39        42.96 Mbits/s         187
 TCP upload::2  :        62.20        72.39 Mbits/s         193
 TCP upload::3  :        61.72        74.31 Mbits/s         191
 TCP upload::4  :        61.86        73.74 Mbits/s         190
 TCP upload::5  :        57.90        65.11 Mbits/s         193
wgong@wgong-Latitude-E5440-1:~/flent/5stream$ flent -H 192.168.1.7 -t "sk_pacing_shift10" tcp_nup --test-parameter upload_streams=5
Started Flent 1.2.2 using Python 2.7.12.
Starting tcp_nup test. Expected run time: 70 seconds.
Data file written to ./tcp_nup-2018-08-14T110931.986159.sk_pacing_shift10.flent.gz.
Summary of tcp_nup test run 'sk_pacing_shift10' (at 2018-08-14 03:09:31.986159):

                           avg       median          # data pts
 Ping (ms) ICMP :        19.23        13.20 ms              350
 TCP upload avg :        76.36        81.37 Mbits/s         301
 TCP upload sum :       381.80       406.85 Mbits/s         301
 TCP upload::1  :        64.95        67.91 Mbits/s         212
 TCP upload::2  :        82.16        92.35 Mbits/s         215
 TCP upload::3  :        67.51        70.18 Mbits/s         213
 TCP upload::4  :        77.42        82.11 Mbits/s         232
 TCP upload::5  :        89.76        99.96 Mbits/s         226

> 
> Thanks,
> 
> -Toke




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