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2025-06-16 - 20:27
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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 rack5slot2.osadl.org (updated Mon Jun 16, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170312208192,11sleep10-21swapper/107:06:031
173352188170,13sleep00-21swapper/007:10:000
151212184167,12sleep30-21swapper/307:05:083
17129210892,11sleep20-21swapper/207:07:202
16182510,0sleep20-21swapper/211:45:312
92062480,0sleep30-21swapper/311:16:583
1750399102,4cyclictest31389-21ssh09:35:010
175039992,3cyclictest12973-21munin-run12:25:010
11358290,0sleep10-21swapper/110:13:141
21204280,0sleep00-21swapper/007:15:150
175039982,3cyclictest28246-21awk08:34:590
175089970,6cyclictest0-21swapper/210:20:152
175089970,6cyclictest0-21swapper/208:25:132
175039970,3cyclictest8221-21munin-run07:55:000
175039960,3cyclictest25840-21munin-run12:15:010
175039960,3cyclictest25602-21munin-run07:25:010
5539250,0sleep30-21swapper/309:54:233
32509250,0sleep10-21swapper/109:35:161
175139955,0cyclictest31864-21kworker/3:211:35:593
175139951,3cyclictest30997-21snmpd09:13:003
175139950,5cyclictest0-21swapper/312:19:423
175139950,5cyclictest0-21swapper/311:04:203
175139950,5cyclictest0-21swapper/310:44:413
175139950,5cyclictest0-21swapper/310:00:023
175139950,5cyclictest0-21swapper/309:55:123
175139950,0cyclictest0-21swapper/312:20:353
175139950,0cyclictest0-21swapper/312:09:133
175089955,0cyclictest0-21swapper/210:45:212
175089950,5cyclictest23386-21ntpq11:40:232
175089950,5cyclictest0-21swapper/212:19:372
175089950,5cyclictest0-21swapper/210:51:092
175089950,5cyclictest0-21swapper/210:30:562
175049955,0cyclictest0-21swapper/109:47:331
175049951,3cyclictest0-21swapper/111:00:131
175049951,2cyclictest0-21swapper/110:50:151
175049950,5cyclictest0-21swapper/112:02:261
175049950,5cyclictest0-21swapper/110:16:301
175049950,5cyclictest0-21swapper/110:05:441
175049950,5cyclictest0-21swapper/109:26:281
175039950,5cyclictest0-21swapper/010:55:290
175039950,5cyclictest0-21swapper/010:16:460
175039950,4cyclictest22228-21ssh10:35:180
175039950,4cyclictest0-21swapper/012:15:170
175039950,4cyclictest0-21swapper/007:25:130
175039950,1cyclictest20825-21sendmail08:20:000
175039950,1cyclictest13173-21latency_hist08:04:590
175139944,0cyclictest0-21swapper/310:57:043
175139944,0cyclictest0-21swapper/309:21:363
175139943,1cyclictest29296-21tune2fs08:35:173
175139943,1cyclictest24699-21ssh09:15:173
175139942,1cyclictest9258-21ssh10:45:023
175139942,1cyclictest14904-21ssh12:25:203
175139940,4cyclictest9088-21ssh11:50:123
175139940,4cyclictest14500-21ssh10:15:063
175139940,4cyclictest0-21swapper/312:36:593
175139940,4cyclictest0-21swapper/312:04:243
175139940,4cyclictest0-21swapper/311:48:583
175139940,4cyclictest0-21swapper/311:40:163
175139940,4cyclictest0-21swapper/311:30:083
175139940,4cyclictest0-21swapper/311:22:313
175139940,4cyclictest0-21swapper/311:05:233
175139940,4cyclictest0-21swapper/310:30:323
175139940,4cyclictest0-21swapper/309:45:423
175139940,4cyclictest0-21swapper/309:35:533
175139940,4cyclictest0-21swapper/309:30:173
175139940,4cyclictest0-21swapper/308:26:173
175139940,4cyclictest0-21swapper/307:27:143
175139940,3cyclictest32425-21ntp_states08:40:203
175139940,3cyclictest32405-21ssh10:07:203
175139940,3cyclictest27523-21ssh11:25:583
175139940,3cyclictest26129-21ntp_states10:20:203
175139940,3cyclictest23857-21df12:30:163
175139940,3cyclictest2309-21ntp_states07:40:173
175139940,3cyclictest22285-21wget10:35:193
175139940,3cyclictest1745-21ssh11:13:333
175139940,3cyclictest16119-21apt-config12:10:003
175139940,3cyclictest12215-21cat09:05:223
175139940,3cyclictest11727-21sh10:13:293
175139940,3cyclictest0-21swapper/310:28:173
175139940,3cyclictest0-21swapper/310:28:163
175139940,2cyclictest0-21swapper/311:58:183
175089944,0cyclictest0-21swapper/212:01:092
175089944,0cyclictest0-21swapper/211:25:032
175089944,0cyclictest0-21swapper/210:57:422
175089944,0cyclictest0-21swapper/210:02:162
175089944,0cyclictest0-21swapper/209:43:312
175089943,1cyclictest32016-21/usr/sbin/munin10:40:242
175089942,1cyclictest30997-21snmpd11:01:482
175089940,4cyclictest9533-21ssh09:23:562
175089940,4cyclictest792-21munin-run07:40:012
175089940,4cyclictest29486-21irqstats07:30:172
175089940,4cyclictest0-21swapper/212:38:122
175089940,4cyclictest0-21swapper/212:25:152
175089940,4cyclictest0-21swapper/210:10:272
175089940,4cyclictest0-21swapper/209:30:172
175089940,4cyclictest0-21swapper/208:45:252
175089940,4cyclictest0-21swapper/207:57:202
175089940,3cyclictest30708-21sh09:18:132
175089940,3cyclictest2092-21taskset11:30:152
175089940,3cyclictest20833-21sh11:23:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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