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2022-07-06 - 18:51

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #2

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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x86 Intel Core i3-2310E @2100 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of shadow in rack #8, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 2 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -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 highest latencies:
System rack8slot2s.osadl.org (updated Wed Jul 06, 2022 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
756421610,2sleep334-21ksoftirqd/307:10:213
837099128125,2cyclictest0-21swapper/007:27:440
837099106104,1cyclictest0-21swapper/007:15:000
2643621010,0sleep30-21swapper/307:50:183
788429147,32sleep10-21swapper/107:12:131
8372999088,1cyclictest0-21swapper/207:27:442
603328946,32sleep00-21swapper/007:10:070
794028846,31sleep20-21swapper/207:12:542
8372996866,1cyclictest0-21swapper/207:15:002
8371994840,7cyclictest0-21swapper/107:27:441
8370994038,1cyclictest1764-21kworker/0:109:05:090
8370993529,3cyclictest8841-21memory10:30:150
8370993528,4cyclictest3311-21hddtemp_smartct12:05:150
157232320,0sleep30-21swapper/312:18:203
837299281,26cyclictest0-21swapper/209:05:082
154232280,1sleep2271rcuc/211:45:082
122672280,0sleep00-21swapper/009:26:080
272732270,0sleep30-21swapper/310:15:213
231122270,1sleep20-21swapper/210:45:152
8371992618,7cyclictest0-21swapper/107:15:001
301532250,1chrt0-21swapper/210:19:572
301382240,1chrt30137-21apt-config09:09:582
837399230,22cyclictest0-21swapper/308:15:103
8370992216,2cyclictest26545-21irqstats10:15:150
837099221,1cyclictest0-21swapper/008:50:090
837099220,21cyclictest0-21swapper/012:25:090
8372992119,1cyclictest0-21swapper/209:50:082
837099192,10cyclictest3564-21awk12:39:570
8373991816,1cyclictest0-21swapper/308:10:093
837099181,10cyclictest15824-21munin-run08:39:570
837099173,4cyclictest141rcu_preempt12:16:250
837099173,2cyclictest141rcu_preempt11:50:510
837099172,8cyclictest19370-21perf09:34:580
837099172,8cyclictest10315-21perf11:39:570
837099171,9cyclictest141rcu_preempt10:47:370
8370991712,4cyclictest141rcu_preempt10:40:210
837099168,2cyclictest141rcu_preempt10:00:190
837099165,4cyclictest141rcu_preempt09:54:510
837399153,7cyclictest0-21swapper/309:28:353
837399151,4cyclictest9088-21ps10:30:183
837099155,8cyclictest23287-21munin-run11:19:570
837099154,2cyclictest141rcu_preempt11:24:150
837099154,2cyclictest141rcu_preempt11:05:190
837099154,2cyclictest141rcu_preempt08:09:150
837099153,5cyclictest141rcu_preempt10:23:410
837099152,5cyclictest141rcu_preempt11:00:130
837099151,3cyclictest141rcu_preempt11:45:010
837399146,7cyclictest0-21swapper/311:44:533
837399144,5cyclictest0-21swapper/308:26:463
8373991412,1cyclictest29950-21ssh12:00:003
837399140,12cyclictest7604-21ssh12:43:383
837299144,6cyclictest16202-21seq09:30:202
837299144,5cyclictest0-21swapper/212:40:102
837199144,5cyclictest0-21swapper/108:00:131
837199143,6cyclictest22-21ksoftirqd/111:42:321
837099149,4cyclictest141rcu_preempt09:00:090
837099149,4cyclictest141rcu_preempt09:00:090
837099149,3cyclictest1601-21cut11:30:120
837099148,5cyclictest26977-1kworker/u9:212:33:250
837099143,6cyclictest568-21runrttasks10:56:550
837099143,2cyclictest141rcu_preempt12:00:550
837099143,2cyclictest141rcu_preempt10:11:110
837099143,2cyclictest141rcu_preempt09:18:030
837099142,4cyclictest141rcu_preempt07:20:330
837099142,1cyclictest141rcu_preempt12:44:280
837099142,1cyclictest141rcu_preempt12:20:050
837099142,1cyclictest141rcu_preempt09:39:050
837099141,5cyclictest141rcu_preempt11:56:270
837099141,12cyclictest0-21swapper/009:20:090
837399138,3cyclictest27800-21grep10:50:143
837399136,6cyclictest20211-21kworker/u8:009:20:203
837399134,8cyclictest0-21swapper/308:57:353
837399134,8cyclictest0-21swapper/307:33:563
837399134,5cyclictest0-21swapper/308:30:163
837399134,4cyclictest0-21swapper/312:35:143
837399130,4cyclictest23370-21ssh11:52:333
837399130,4cyclictest22257-21taskset12:25:123
837299138,4cyclictest0-21swapper/208:31:162
837299138,3cyclictest20340-21grep09:35:132
837299134,4cyclictest0-21swapper/212:02:512
837299133,5cyclictest0-21swapper/209:46:272
837299131,5cyclictest610-21dump-pmu-power11:29:572
837199134,4cyclictest7781-21ssh11:35:441
837199134,4cyclictest0-21swapper/108:53:491
837199134,4cyclictest0-21swapper/107:56:541
8371991311,1cyclictest0-21swapper/111:25:211
837099137,4cyclictest28674-21ntpq07:55:190
837099135,6cyclictest0-21swapper/007:44:090
837099134,8cyclictest0-21swapper/008:15:390
837099133,3cyclictest141rcu_preempt08:47:250
837099133,2cyclictest141rcu_preempt10:09:370
837099132,2cyclictest141rcu_preempt11:43:350
837099132,2cyclictest141rcu_preempt11:10:290
837099132,2cyclictest141rcu_preempt10:52:130
837099131,4cyclictest141rcu_preempt10:25:490
837099131,1cyclictest141rcu_preempt12:12:430
837399127,3cyclictest41650irq/33-enp3s0-r11:05:173
837399127,3cyclictest22597-21head10:10:223
837399127,3cyclictest10458-21sh07:19:573
837399126,5cyclictest12636-21kworker/u8:012:11:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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