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2026-03-25 - 19:53
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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 rackaslot8.osadl.org (updated Wed Mar 25, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213452313286,18sleep20-21swapper/207:05:062
230062312280,22sleep10-21swapper/107:06:141
232972269214,18sleep30-21swapper/307:09:383
230832269237,21sleep00-21swapper/007:07:130
310032590,0sleep20-21swapper/210:39:492
122112580,0sleep30-21swapper/309:49:133
304742550,0sleep00-21swapper/011:37:210
261862540,0sleep30-21swapper/310:55:283
233102540,0sleep30-21swapper/312:12:203
157952190,0sleep20-21swapper/212:07:502
79492180,0sleep10-21swapper/109:45:551
39242150,0sleep10-21swapper/111:21:011
2343699143,8cyclictest658-21snmpd10:29:061
2343699141,10cyclictest0-21swapper/110:56:381
201062140,0sleep30-21swapper/308:10:183
4672130,0sleep30-21swapper/311:19:463
4672130,0sleep30-21swapper/311:19:463
2343699131,7cyclictest2616-21vmstat07:30:201
2343699130,10cyclictest931-21ssh09:41:151
2343699130,10cyclictest8526-21ssh10:05:571
2343699130,10cyclictest32150-21ssh11:38:391
2343699130,10cyclictest10782-21sh10:46:251
2344199129,3cyclictest28-21ksoftirqd/207:15:002
2343699123,5cyclictest5722-21ssh12:20:571
2343699121,6cyclictest20823-21ssh11:11:541
2343699120,9cyclictest28093-21taskset08:28:401
2343699120,9cyclictest28021-21ssh11:16:011
2343699120,9cyclictest28021-21ssh11:16:011
2343699120,9cyclictest27421-21ssh10:17:281
2343699120,9cyclictest26432-21ssh12:14:431
2343699120,9cyclictest24037-21ssh09:55:371
2343699120,9cyclictest21307-21ssh10:14:101
2343699120,9cyclictest17744-21chrt12:28:521
2343699120,9cyclictest15537-21ssh09:50:251
2343699120,9cyclictest14725-21ssh11:47:301
2343699120,9cyclictest0-21swapper/111:40:311
2343699120,8cyclictest4353-21ssh09:23:541
2343699120,8cyclictest4353-21ssh09:23:541
2343699120,8cyclictest20206-21sh11:50:211
2343699120,7cyclictest24865-21ssh12:32:481
2343699120,7cyclictest23150-11brltty07:55:091
2343699120,7cyclictest22099-21ssh09:35:011
2343699120,7cyclictest19017-21ssh10:31:491
2343699120,7cyclictest1898-21ssh11:59:421
2343699120,7cyclictest16800-21ssh09:30:581
2343699120,7cyclictest0-21swapper/111:01:551
2343699120,6cyclictest31588-21sh10:40:061
2343699120,6cyclictest28464-21ssh12:35:081
2343699120,6cyclictest1648-21ssh10:21:081
2343699111,6cyclictest31755-21fw_packets07:25:131
2343699110,9cyclictest23270-21chrt08:18:131
2343699110,9cyclictest13335-21seq09:07:091
2343699110,8cyclictest9625-21chrt07:48:131
2343699110,8cyclictest11825-21seq07:53:061
2343699110,7cyclictest9098-21taskset08:59:441
2343699110,7cyclictest4919-21ssh12:00:371
2343699110,7cyclictest30743-21taskset07:22:131
2343699110,7cyclictest29827-21ssh12:15:571
2343699110,7cyclictest19985-21ssh11:30:321
2343699110,7cyclictest19424-21rm10:51:391
2343699110,7cyclictest1-21systemd09:00:171
2343699110,6cyclictest27989-21ssh10:37:251
2343699110,6cyclictest275-21systemd-journal08:31:051
2343699110,6cyclictest23671-21ls09:15:191
2343699110,6cyclictest1716-21ssh10:02:051
2343699110,6cyclictest14672-21ssh11:27:511
2343699110,6cyclictest10622-21ssh12:05:031
2344599108,1cyclictest34-21ksoftirqd/307:20:013
2344199109,1cyclictest28-21ksoftirqd/211:40:012
2344199108,2cyclictest28-21ksoftirqd/210:00:012
2343699100,8cyclictest20837-21seq08:14:081
2343699100,7cyclictest6724-21seq08:53:001
2343699100,6cyclictest6065-21ssh09:25:061
2343699100,6cyclictest4490-21seq08:47:471
2343699100,6cyclictest32255-21taskset08:35:191
2343699100,6cyclictest28359-21chrt07:15:231
2343699100,6cyclictest25466-21taskset07:13:231
2343699100,6cyclictest18489-21taskset08:07:441
2343699100,6cyclictest16367-21seq08:03:471
2343699100,6cyclictest16179-21ssh09:10:421
2343699100,5cyclictest1216-21/usr/sbin/munin08:40:151
2343699100,5cyclictest0-21swapper/107:38:291
2343699100,1cyclictest0-21swapper/111:05:151
4743290,0chrt0-21swapper/011:41:060
234419998,1cyclictest28-21ksoftirqd/211:15:012
234419998,1cyclictest28-21ksoftirqd/210:50:012
234419998,1cyclictest28-21ksoftirqd/207:25:012
234419998,1cyclictest28-21ksoftirqd/207:15:022
234369990,5cyclictest253572sleep108:21:101
234369990,5cyclictest0-21swapper/107:42:101
12070290,0sleep00-21swapper/011:45:220
234459980,7cyclictest21684-21cstates08:15:123
234459980,7cyclictest11692-21ssh11:06:303
234419987,1cyclictest28-21ksoftirqd/212:25:002
234419987,1cyclictest28-21ksoftirqd/211:35:012
234419987,1cyclictest28-21ksoftirqd/210:45:012
234419986,1cyclictest28-21ksoftirqd/212:35:002
234419986,1cyclictest28-21ksoftirqd/210:10:022
234419981,4cyclictest28-21ksoftirqd/210:05:222
32201270,0sleep00-21swapper/010:00:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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