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2025-11-21 - 15:36
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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
Characteristics of the 100 highest latencies:
System rack5slot0.osadl.org (updated Fri Nov 21, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2359921610,1sleep00-21swapper/010:47:570
2359921610,1sleep00-21swapper/010:47:560
1128521590,5sleep21301699cyclictest12:33:152
3074221370,4sleep31301799cyclictest09:12:563
3134921290,1sleep20-21swapper/209:49:262
2347221290,2sleep20-21swapper/211:21:212
1055221280,2sleep210539-21cp10:10:102
1699121270,1sleep00-21swapper/011:56:460
2690221230,1sleep20-21swapper/209:15:392
1651321210,2sleep31301799cyclictest09:51:033
252721170,1sleep02518-21sshd11:35:490
1143321150,1sleep311430-21cp11:07:033
2980421140,1sleep10-21swapper/109:29:371
1278221120,2sleep01301499cyclictest09:34:330
318321090,3sleep00-21swapper/011:25:470
1451721070,1sleep010-21rcuc/011:14:050
1953821040,2sleep319537-21sshd10:30:433
1640021040,2sleep31301799cyclictest10:50:233
1110721020,2sleep30-21swapper/311:56:123
55322980,1sleep3417-21jbd2/dm-0-811:36:083
314512960,1sleep10-21swapper/110:38:471
24462960,0sleep12445-21awk11:55:231
99562930,1sleep09948-21sshd11:53:050
161842900,1sleep10-21swapper/110:43:521
52702890,0sleep00-21swapper/012:11:080
1246428929,56sleep10-21swapper/107:06:341
206062880,1sleep20-21swapper/209:58:082
229062870,2sleep30-21swapper/312:06:343
294212860,2sleep20-21swapper/209:42:452
233362860,0sleep123335-21bash10:11:251
201922860,2sleep31301799cyclictest12:03:153
273482840,2sleep127343-21sshd09:39:151
1260028432,48sleep30-21swapper/307:08:193
293352830,2sleep30-21swapper/309:55:403
196262830,2sleep20-21swapper/210:57:282
156712830,1sleep10-21swapper/112:02:481
134792820,3sleep20-21swapper/211:17:082
132162810,2sleep313202-21iostat11:50:153
202952790,3sleep20-21swapper/209:35:152
133722790,1sleep00-21swapper/010:36:510
195672780,1sleep10-21swapper/112:12:351
287912770,1sleep10-21swapper/109:58:591
195282770,1sleep20-21swapper/210:07:462
190482770,2sleep20-21swapper/212:00:082
198762760,2sleep119874-21sshd12:34:021
273552750,5sleep11301599cyclictest11:54:461
254642750,0sleep00-21swapper/010:18:140
137882750,1sleep20-21swapper/212:15:072
117322740,2sleep111725-21sshd11:36:471
27662730,1sleep30-21swapper/310:49:083
27662730,1sleep30-21swapper/310:49:073
146612730,1sleep214653-21sshd10:30:182
142232730,2sleep10-21swapper/109:11:011
80192720,2sleep38020-21sshd10:09:553
1271627232,10sleep20-21swapper/207:09:282
120392710,2sleep21301699cyclictest11:43:292
98912700,2sleep01847-21nfsd12:02:160
121702700,2sleep31301799cyclictest12:27:193
259792640,0sleep00-21swapper/011:08:360
271542530,3sleep10-21swapper/111:01:521
57192510,2sleep10-21swapper/111:06:281
74742480,0sleep00-21swapper/011:49:490
1301499488,30cyclictest14368-21sshd12:36:210
1301499473,39cyclictest0-21swapper/010:23:260
13014994510,25cyclictest0-21swapper/011:19:330
1269524437,4sleep00-21swapper/007:09:140
13014994214,22cyclictest1572-21sshd12:07:430
13014994214,20cyclictest13573-21sshd10:40:140
13014994213,5cyclictest10743-21sshd11:20:100
190862410,3sleep10-21swapper/110:24:161
1301499411,8cyclictest13900-21sshd09:17:410
13014994110,5cyclictest31652-21sshd09:26:150
1301499398,6cyclictest1847-21nfsd09:51:130
13014993813,18cyclictest1959-21sshd10:00:070
13014993810,6cyclictest135650irq/27-eth010:51:150
13014993810,6cyclictest13267-21sshd12:33:270
56392372,33sleep1135650irq/27-eth012:17:241
13014993712,19cyclictest30034-21sshd11:41:510
17152360,2sleep31710-21bash09:30:033
1301699354,5cyclictest18188-21sshd11:10:562
1301499352,4cyclictest5433-21sshd09:37:000
1301499351,18cyclictest32142sleep010:55:420
52712340,1sleep05268-21bash11:03:080
1301499349,8cyclictest11536-21bash10:30:030
13014993420,12cyclictest0-21swapper/009:13:480
13014993411,15cyclictest0-21swapper/010:27:410
13014993311,4cyclictest0-21swapper/012:22:300
1301499327,23cyclictest11361-21sshd10:10:120
1301499325,24cyclictest26313-21sshd12:25:310
13014993215,15cyclictest1848-21nfsd11:30:590
99572310,2sleep11847-21nfsd11:43:131
21962311,27sleep110950irq/23-ehci_hcd11:49:181
1301499317,5cyclictest24476-21cp12:16:030
13014993118,10cyclictest26848-21sshd09:55:240
1301799300,26cyclictest3471-21perf09:20:003
1301499306,9cyclictest16968-21sshd09:41:240
299772290,27sleep1135650irq/27-eth007:45:171
1301499297,3cyclictest135650irq/27-eth010:08:010
288332280,3sleep30-21swapper/309:49:113
97932270,5sleep21301699cyclictest09:30:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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