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2022-07-06 - 23:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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ARM Broadcom BCM2711 @1500 MHz, Linux 5.15.45-rt46-v7l (Profile)

Latency plot of shadow in rack #4, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack4slot1s.osadl.org (updated Wed Jul 06, 2022 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2331821170,3chrt0-21swapper/112:00:431
2331821170,3chrt0-21swapper/112:00:431
827621120,4sleep20-21swapper/211:45:132
827621120,4sleep20-21swapper/211:45:132
139992970,3sleep20-21swapper/212:27:122
139992970,3sleep20-21swapper/212:27:122
53592850,3sleep10-21swapper/109:15:221
53592850,3sleep10-21swapper/109:15:221
207102790,3sleep20-21swapper/210:09:242
207102790,3sleep20-21swapper/210:09:242
128552770,2sleep20-21swapper/210:00:242
128552770,2sleep20-21swapper/210:00:242
170962760,3sleep20-21swapper/210:40:432
170962760,3sleep20-21swapper/210:40:432
19590997152,8cyclictest24-21ksoftirqd/112:25:171
19590997152,8cyclictest24-21ksoftirqd/112:25:171
133942640,2sleep10-21swapper/111:14:051
133942640,2sleep10-21swapper/111:14:051
277212620,2sleep10-21swapper/111:30:211
277212620,2sleep10-21swapper/111:30:211
252192590,4chrt0-21swapper/310:50:243
252192590,4chrt0-21swapper/310:50:243
238732580,2chrt0-21swapper/312:38:383
238732580,2chrt0-21swapper/312:38:383
19590995439,3cyclictest24-21ksoftirqd/108:50:171
19590995439,3cyclictest24-21ksoftirqd/108:50:171
72282520,3chrt0-21swapper/111:06:141
72282520,3chrt0-21swapper/111:06:141
281662520,3sleep20-21swapper/212:06:272
186122520,3sleep118290-21/usr/sbin/munin09:30:211
186122520,3sleep118290-21/usr/sbin/munin09:30:211
96792510,2sleep20-21swapper/212:22:222
96792510,2sleep20-21swapper/212:22:222
164782510,3sleep10-21swapper/111:16:511
260252500,3sleep10-21swapper/111:28:041
1958999502,10cyclictest141rcu_preempt10:25:160
9842490,3sleep20-21swapper/210:23:272
9842490,3sleep20-21swapper/210:23:272
201502490,3sleep30-21swapper/312:34:493
1958999495,7cyclictest141rcu_preempt11:55:170
1958999495,7cyclictest141rcu_preempt11:55:170
1958999492,6cyclictest6193-21apt-get08:00:170
150532490,2sleep015064-21sh11:51:470
150532490,2sleep015064-21sh11:51:470
300872480,2sleep030275-21timerwakeupswit07:35:290
300872480,2sleep030275-21timerwakeupswit07:35:290
182182485,32sleep118272-21/usr/sbin/munin07:05:231
182182485,32sleep118272-21/usr/sbin/munin07:05:231
15672480,10sleep338-21ksoftirqd/311:36:383
5152470,3sleep20-21swapper/209:10:212
5152470,3sleep20-21swapper/209:10:212
1959099466,34cyclictest13875-21ssh09:25:181
1959099466,34cyclictest13875-21ssh09:25:181
1958999465,32cyclictest6731-21ssh10:30:170
1958999465,32cyclictest6731-21ssh10:30:170
19590994522,11cyclictest24-21ksoftirqd/112:10:171
19590994518,21cyclictest24-21ksoftirqd/108:10:181
19590994518,21cyclictest24-21ksoftirqd/108:10:181
19589994512,27cyclictest20063-21ssh10:45:170
19589994512,27cyclictest20063-21ssh10:45:170
1958999442,37cyclictest12473-21ssh10:00:210
1958999442,37cyclictest12473-21ssh10:00:210
11132440,3chrt0-21swapper/211:00:202
11132440,3chrt0-21swapper/211:00:202
202852430,3sleep30-21swapper/307:10:253
202852430,3sleep30-21swapper/307:10:253
1959199437,8cyclictest141rcu_preempt09:55:222
1959199437,8cyclictest141rcu_preempt09:55:222
19591994332,9cyclictest31-21ksoftirqd/209:05:162
19591994332,9cyclictest31-21ksoftirqd/209:05:162
151712420,3chrt0-21swapper/110:02:481
151712420,3chrt0-21swapper/110:02:481
1959199414,34cyclictest672-21runrttasks12:35:172
1959199414,34cyclictest672-21runrttasks12:35:172
1958999412,6cyclictest0-21swapper/009:50:170
1958999412,6cyclictest0-21swapper/009:50:170
1958999412,6cyclictest0-21swapper/007:30:180
1958999412,6cyclictest0-21swapper/007:30:180
19589994110,28cyclictest9473-21sh11:09:560
19589994110,28cyclictest9473-21sh11:09:560
155222410,1sleep30-21swapper/312:29:463
155222410,1sleep30-21swapper/312:29:463
1958999405,26cyclictest9502-21ssh09:20:300
19589994016,22cyclictest11493-21ssh11:10:550
19589994016,22cyclictest11493-21ssh11:10:550
19589994013,25cyclictest29062-21ssh09:41:230
19589994013,25cyclictest29062-21ssh09:41:230
19590993912,19cyclictest0-21swapper/112:35:171
19590993912,19cyclictest0-21swapper/112:35:171
19589993923,13cyclictest52250irq/52-eth012:00:180
19589993923,13cyclictest52250irq/52-eth012:00:180
19589993922,11cyclictest52150irq/51-eth009:25:190
19589993922,11cyclictest52150irq/51-eth009:25:190
19589993914,23cyclictest25086-21ssh11:26:290
194942390,3sleep30-21swapper/308:35:183
97982380,2sleep10-21swapper/112:22:331
97982380,2sleep10-21swapper/112:22:331
1959099381,32cyclictest0-21swapper/107:20:171
1959099381,32cyclictest0-21swapper/107:20:171
1958999386,28cyclictest52150irq/51-eth009:10:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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