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2025-04-02 - 06:42
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackfslot7.osadl.org (updated Wed Apr 02, 2025 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2012633997031,39cyclictest0-21swapper/021:27:190
2012633996931,38cyclictest0-21swapper/021:14:340
201264299648,37cyclictest2047976-21kworker/u32:5+flush-8:020:35:153
201265499570,56cyclictest0-21swapper/523:50:125
2012637995435,19cyclictest321rcuc/122:00:151
2012633995416,19cyclictest1089-21snmpd21:46:000
2012664995214,38cyclictest0-21swapper/700:30:177
2012637995214,19cyclictest0-21swapper/123:10:121
2012654995113,19cyclictest0-21swapper/520:10:145
2012654995112,39cyclictest0-21swapper/520:40:175
2012642995132,19cyclictest0-21swapper/319:45:163
2012633995132,19cyclictest0-21swapper/022:56:570
2012633995132,0cyclictest0-21swapper/022:07:000
2012637995012,38cyclictest0-21swapper/120:30:121
2012633995031,19cyclictest0-21swapper/022:34:010
2012633995031,19cyclictest0-21swapper/022:29:080
2012633995031,19cyclictest0-21swapper/022:10:270
2012633995031,19cyclictest0-21swapper/022:02:430
2012654994911,19cyclictest0-21swapper/521:15:165
2012654994911,19cyclictest0-21swapper/519:20:175
2012639994910,20cyclictest0-21swapper/219:55:162
2012633994931,18cyclictest0-21swapper/023:52:230
2012633994931,18cyclictest0-21swapper/023:34:130
2012633994931,18cyclictest0-21swapper/021:53:230
2012633994930,19cyclictest0-21swapper/020:02:530
2012642994830,18cyclictest0-21swapper/323:00:173
2012637994811,18cyclictest0-21swapper/122:55:161
2012633994830,18cyclictest0-21swapper/021:05:410
201266499479,19cyclictest0-21swapper/722:35:167
2012637994710,18cyclictest2012628-21cyclictest19:40:171
2012637994710,18cyclictest0-21swapper/121:15:171
2012633994728,1cyclictest0-21swapper/019:25:030
2012633994728,19cyclictest0-21swapper/021:40:030
201266499467,39cyclictest0-21swapper/720:20:167
2012664994628,18cyclictest0-21swapper/723:11:447
2012633994627,19cyclictest0-21swapper/023:49:360
201263799446,19cyclictest0-21swapper/100:20:171
2012659994325,18cyclictest0-21swapper/619:50:226
2012639994223,19cyclictest0-21swapper/223:30:112
2012633994223,19cyclictest0-21swapper/023:57:370
201265999413,19cyclictest0-21swapper/600:10:136
201264299410,40cyclictest2128885-21latency_hist23:50:023
201263799413,38cyclictest0-21swapper/119:35:161
201263799413,19cyclictest0-21swapper/123:55:171
201263799413,19cyclictest0-21swapper/100:10:121
201265999402,19cyclictest0-21swapper/620:10:146
201265999400,19cyclictest0-21swapper/623:50:126
201264299402,19cyclictest0-21swapper/322:30:133
2012637994021,19cyclictest0-21swapper/122:50:121
2012659993921,18cyclictest0-21swapper/620:15:176
201264299391,19cyclictest2036819-21kworker/u32:5+events_unbound20:05:133
201263799390,19cyclictest0-21swapper/100:30:171
201263399390,19cyclictest0-21swapper/021:23:240
201263399390,19cyclictest0-21swapper/020:50:010
201263399390,19cyclictest0-21swapper/019:44:110
201263399390,19cyclictest0-21swapper/000:17:030
201266499380,19cyclictest0-21swapper/719:20:177
201265999380,15cyclictest0-21swapper/622:40:176
2012642993819,19cyclictest0-21swapper/321:53:213
2012642993819,19cyclictest0-21swapper/300:29:333
201264299380,38cyclictest0-21swapper/321:00:173
2012633993820,18cyclictest0-21swapper/020:56:170
2012633993820,18cyclictest0-21swapper/020:56:170
2012633993819,19cyclictest2091743-21kworker/0:0+ice22:19:380
201263399380,18cyclictest0-21swapper/000:25:010
2012649993736,0cyclictest2112201-21kworker/4:2+events23:06:114
2012649993735,1cyclictest2115349-21kworker/4:0+events23:33:344
2012642993737,0cyclictest0-21swapper/320:23:433
201264299370,37cyclictest0-21swapper/319:10:173
201263799370,18cyclictest0-21swapper/121:50:121
2012649993636,0cyclictest2115349-21kworker/4:0+events00:13:354
2012649993636,0cyclictest2112201-21kworker/4:2+events00:02:474
201263399360,36cyclictest0-21swapper/021:30:180
201263399360,36cyclictest0-21swapper/019:45:170
201266499350,15cyclictest0-21swapper/719:15:167
201265999350,34cyclictest0-21swapper/622:35:166
2012654993535,0cyclictest0-21swapper/521:21:195
201265499350,15cyclictest0-21swapper/523:35:185
2012649993535,0cyclictest2115349-21kworker/4:0+events23:44:134
2012649993535,0cyclictest2115349-21kworker/4:0+events23:23:584
2012649993535,0cyclictest2089487-21kworker/4:0+events22:07:094
2012649993535,0cyclictest2051868-21kworker/4:0+events20:58:544
2012649993535,0cyclictest2051868-21kworker/4:0+events20:58:534
2012649993535,0cyclictest2045376-21kworker/4:2+events22:25:104
2012649993535,0cyclictest2045376-21kworker/4:2+events22:01:294
2012649993535,0cyclictest2045376-21kworker/4:2+events21:58:374
2012649993535,0cyclictest2041736-21kworker/4:1+events20:22:374
2012649993534,1cyclictest2115349-21kworker/4:0+events23:11:024
2012649993534,1cyclictest2051868-21kworker/4:0+events21:11:414
2012649993534,0cyclictest2115349-21kworker/4:0+events00:16:114
2012642993535,0cyclictest0-21swapper/321:40:313
201264299350,15cyclictest0-21swapper/319:25:163
2012637993516,19cyclictest321rcuc/100:15:181
201263399350,15cyclictest0-21swapper/019:55:170
201263399350,15cyclictest0-21swapper/019:10:130
201263399350,15cyclictest0-21swapper/000:20:140
201263399350,15cyclictest0-21swapper/000:13:040
201266499340,15cyclictest0-21swapper/722:20:167
2012659993415,19cyclictest0-21swapper/623:35:196
201265999340,34cyclictest0-21swapper/623:40:156
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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