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2025-06-16 - 20:23
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Mon Jun 16, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
422221730,3sleep03256599cyclictest12:43:240
1518911350,4ptp4l401ktimersoftd/309:49:263
189572680,2sleep20-21swapper/213:41:312
151891670,1ptp4l401ktimersoftd/312:47:173
151891660,10ptp4l401ktimersoftd/315:00:233
151891640,1ptp4l401ktimersoftd/310:23:203
151891630,1ptp4l401ktimersoftd/311:16:393
5202610,2sleep30-21swapper/310:56:233
321762604,10sleep20-21swapper/209:47:202
321392594,43sleep00-21swapper/009:46:490
246192590,2sleep00-21swapper/014:28:150
151891580,1ptp4l401ktimersoftd/314:31:153
240262570,2sleep20-21swapper/215:03:502
151891570,1ptp4l401ktimersoftd/312:24:413
151891560,1ptp4l401ktimersoftd/311:41:283
3257599554,14cyclictest15264-21latency_hist10:21:052
3257599539,13cyclictest6777-21awk14:06:442
3257599534,18cyclictest11519-21snmp_o5powerctl13:31:372
297292530,1sleep10-21swapper/115:10:191
151891510,1ptp4l401ktimersoftd/313:28:503
3257599504,12cyclictest4370-21awk14:41:352
3257599504,12cyclictest4370-21awk14:41:352
3257599503,19cyclictest17593-21apt-get10:26:062
151891500,2ptp4l27254-21kworker/3:211:47:023
3257599492,13cyclictest18577-21sed12:21:282
3257599492,12cyclictest11095-21sh12:11:402
3257599472,12cyclictest25749-21diskmemload12:49:182
3257599454,10cyclictest32557-21cyclictest14:46:142
3257599452,12cyclictest8344-21acpi10:06:162
3257599450,10cyclictest0-21swapper/211:58:402
151891430,1ptp4l401ktimersoftd/310:43:373
151891400,1ptp4l401ktimersoftd/314:16:233
151891400,1ptp4l401ktimersoftd/311:53:463
151891400,0ptp4l401ktimersoftd/314:11:253
3257599395,6cyclictest0-21swapper/215:20:022
151891390,2ptp4l27254-21kworker/3:212:34:163
3257599381,10cyclictest0-21swapper/211:11:342
3257599381,10cyclictest0-21swapper/211:11:342
151891380,2ptp4l21563-21kworker/3:014:52:453
151891380,0ptp4l401ktimersoftd/314:46:583
151891370,1ptp4l401ktimersoftd/314:00:403
151891370,1ptp4l401ktimersoftd/312:01:243
3257599367,12cyclictest32101-21missed_timers14:36:352
304222363,19sleep130340-21/usr/sbin/munin09:46:181
151891360,2ptp4l27254-21kworker/3:212:38:373
151891360,2ptp4l21563-21kworker/3:015:19:483
151891360,1ptp4l401ktimersoftd/315:05:543
151891360,1ptp4l401ktimersoftd/311:56:533
151891360,1ptp4l401ktimersoftd/311:36:283
151891360,1ptp4l401ktimersoftd/311:15:313
151891360,1ptp4l401ktimersoftd/311:15:313
151891360,1ptp4l401ktimersoftd/310:37:143
151891360,1ptp4l401ktimersoftd/310:16:223
3257599355,6cyclictest0-21swapper/213:13:022
3257599354,5cyclictest0-21swapper/212:16:322
151891350,1ptp4l401ktimersoftd/312:09:423
3258299341,30cyclictest32052-21cron10:56:053
3257599344,7cyclictest0-21swapper/213:57:482
151891340,1ptp4l401ktimersoftd/315:08:363
151891340,1ptp4l401ktimersoftd/314:25:133
151891340,1ptp4l401ktimersoftd/313:06:353
151891340,1ptp4l401ktimersoftd/312:26:573
3257599335,12cyclictest7475-21grep10:01:342
3257599334,6cyclictest0-21swapper/214:28:242
151891330,1ptp4l401ktimersoftd/315:15:083
151891330,1ptp4l401ktimersoftd/313:38:213
151891330,1ptp4l401ktimersoftd/313:24:593
151891330,1ptp4l401ktimersoftd/311:27:003
151891330,1ptp4l401ktimersoftd/309:55:143
151891330,11ptp4l401ktimersoftd/314:43:353
151891330,11ptp4l401ktimersoftd/314:43:353
32565993216,8cyclictest25749-21diskmemload13:16:270
151891320,2ptp4l27254-21kworker/3:212:43:443
151891320,1ptp4l401ktimersoftd/314:29:083
151891320,1ptp4l401ktimersoftd/314:08:403
151891320,1ptp4l401ktimersoftd/313:47:063
151891320,1ptp4l401ktimersoftd/313:14:453
151891320,1ptp4l401ktimersoftd/312:58:513
151891320,1ptp4l401ktimersoftd/312:58:513
151891320,1ptp4l401ktimersoftd/312:14:283
151891320,1ptp4l401ktimersoftd/311:05:253
151891320,1ptp4l401ktimersoftd/310:31:503
151891320,0ptp4l401ktimersoftd/313:20:313
151891320,0ptp4l401ktimersoftd/310:46:263
151891320,0ptp4l401ktimersoftd/310:11:133
3257599317,6cyclictest22312-21ssh13:06:272
3257599315,12cyclictest32288-21/usr/sbin/munin10:56:252
3257599315,12cyclictest12292-21seq12:53:152
3257599315,11cyclictest10888-21timedrift11:16:392
32575993115,9cyclictest26064-21apt-get12:31:222
230182310,2sleep20-21swapper/212:26:272
2067623123,3sleep125-21ksoftirqd/112:24:271
151891310,1ptp4l401ktimersoftd/314:37:453
151891310,1ptp4l401ktimersoftd/313:55:373
151891310,1ptp4l401ktimersoftd/313:02:393
151891310,1ptp4l401ktimersoftd/312:52:193
151891310,1ptp4l401ktimersoftd/312:16:173
151891310,1ptp4l401ktimersoftd/309:57:553
3257599302,6cyclictest0-21swapper/210:21:222
151891300,8ptp4l401ktimersoftd/313:41:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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