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2026-07-21 - 18:11
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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 Tue Jul 21, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151852298267,20sleep20-21swapper/207:06:492
151792280254,17sleep10-21swapper/107:06:431
154422270219,41sleep00-21swapper/007:09:510
152792260229,20sleep30-21swapper/307:08:023
99092610,0sleep00-21swapper/012:29:120
290582610,0sleep00-21swapper/007:35:210
250062610,0sleep00-21swapper/009:40:450
205592600,0sleep20-21swapper/211:35:482
210262590,0sleep10-21swapper/110:37:341
33552580,1sleep10-21swapper/111:45:161
254922580,0sleep00-21swapper/011:20:010
134442570,0sleep00-21swapper/009:34:340
41302550,0sleep00-21swapper/009:05:140
256182540,0sleep10-21swapper/112:38:421
160612540,0sleep20-21swapper/209:15:292
181742480,0sleep30-21swapper/310:55:183
158362210,0sleep20-21swapper/212:12:402
153552200,0sleep10-21swapper/111:13:531
289042180,0sleep10-21swapper/111:40:401
281672150,0sleep20-21swapper/209:23:332
23952150,0sleep00-21swapper/010:45:290
1555699150,11cyclictest15440-21systemd-udevd08:18:341
37492140,0sleep20-21swapper/209:48:062
37492140,0sleep20-21swapper/209:48:062
1555699141,10cyclictest0-21swapper/112:11:471
222672130,0sleep30-21swapper/310:38:313
184882130,0sleep30-21swapper/311:35:133
182352130,0sleep00-21swapper/011:54:520
1555699132,8cyclictest16005-21sh11:33:551
1555699130,9cyclictest20236-21ssh10:56:341
1555699130,8cyclictest15780-21grep09:55:181
1555699130,10cyclictest8808-21ssh09:11:141
1555699130,10cyclictest5969-21ssh12:06:241
1555699130,10cyclictest5778-21ssh11:27:181
1555699130,10cyclictest5764-21ssh09:49:401
1555699130,10cyclictest5764-21ssh09:49:401
1555699130,10cyclictest5315-21chrt09:08:551
1555699130,10cyclictest5103-21ssh10:27:591
1555699130,10cyclictest31224-21ssh10:05:061
1555699130,10cyclictest30628-21ssh10:43:391
1555699130,10cyclictest30374-21ssh11:22:341
1555699130,10cyclictest2513-21ssh09:27:251
1555699130,10cyclictest15328-21ssh10:54:101
1555699130,10cyclictest1334-21ssh12:23:521
50872120,0sleep30-21swapper/309:29:273
1555699122,9cyclictest275-21systemd-journal08:30:001
1555699120,9cyclictest31441-21chrt07:40:311
1555699120,9cyclictest30628-21chrt10:04:501
1555699120,9cyclictest2952-21ssh11:05:351
1555699120,9cyclictest24496-21ssh09:40:221
1555699120,9cyclictest22339-21sh11:37:131
1555699120,9cyclictest20696-21sh10:17:531
1555699120,9cyclictest18684-21chrt09:17:321
1555699120,9cyclictest17772-21chrt08:24:231
1555699120,9cyclictest15762-21ssh10:34:511
1555699120,8cyclictest29732-21ssh12:01:011
1555699120,7cyclictest5724-21ssh12:25:541
1555699120,7cyclictest23310-21taskset11:57:251
1555699120,7cyclictest17712-21ssh12:33:551
1555699120,7cyclictest16965-21ssh11:53:531
1555699120,7cyclictest13192-21ssh10:13:271
1555699120,6cyclictest0-21swapper/110:48:201
1556599112,6cyclictest28779-21wc07:35:203
1556599111,6cyclictest1373-21ssh11:25:053
1555699111,6cyclictest25529-21latency08:40:171
1555699111,6cyclictest20702-21smart_sda12:15:201
1555699110,9cyclictest6337-21chrt07:59:401
1555699110,9cyclictest28672-21chrt08:46:501
1555699110,8cyclictest679-21chrt08:56:421
1555699110,7cyclictest9004-21ssh09:50:471
1555699110,7cyclictest8959-21ssh09:31:041
1555699110,7cyclictest23412-21/usr/sbin/munin09:20:171
1555699110,7cyclictest18078-21ssh09:36:461
1555699110,6cyclictest28220-21ssh11:01:231
1555699110,6cyclictest275-21systemd-journal10:20:521
1556599102,5cyclictest2421-21ssh09:47:033
1556599102,5cyclictest2421-21ssh09:47:033
1556599101,7cyclictest6136-21ssh10:09:363
1556599101,7cyclictest11470-21ssh10:51:093
1556599101,6cyclictest31948-21ssh11:04:213
1556599101,6cyclictest17059-21sh12:13:393
1556599101,6cyclictest14883-21sh12:31:403
1556599101,6cyclictest12130-21ssh09:33:313
1555699101,8cyclictest28966-21unixbench-2d07:35:221
1555699100,8cyclictest24814-21chrt07:27:261
1555699100,6cyclictest8479-21taskset08:03:371
1555699100,6cyclictest3897-21chrt07:52:081
1555699100,6cyclictest21926-21seq08:30:591
1555699100,6cyclictest20544-21chrt07:19:401
1555699100,6cyclictest17488-21ssh11:15:071
1555699100,6cyclictest15402-11brltty08:53:111
1555699100,5cyclictest0-21swapper/108:10:171
1555699100,0cyclictest0-21swapper/109:00:111
155659996,2cyclictest16345-21grep08:20:163
155659995,3cyclictest7247-21apt-get10:10:033
155659994,4cyclictest18025-21grep07:15:023
155659991,6cyclictest6336-21ssh11:46:583
155659991,6cyclictest5717-21ssh12:06:133
155659991,6cyclictest27221-21taskset07:34:323
155659991,6cyclictest24509-21ssh11:19:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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