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2026-06-09 - 20:46
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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 rackdslot3.osadl.org (updated Tue Jun 09, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230165,22phc2sys0-21swapper/307:06:213
22092204171,22sleep00-21swapper/007:05:310
23102203169,22sleep20-21swapper/207:06:422
23972201168,22sleep10-21swapper/107:07:501
892221430,3sleep3291699cyclictest07:20:233
139391910,1ptp4l9078-21users11:50:283
1394918561,16phc2sys0-21swapper/307:10:013
139391690,1ptp4l391rcuc/309:55:503
58472610,2sleep20-21swapper/208:20:262
74852570,2sleep37488-21processes10:40:253
291699571,21cyclictest20465-21/usr/sbin/munin11:10:223
273892560,1sleep00-21swapper/008:00:150
291699550,20cyclictest20740-21/usr/sbin/munin08:55:133
291699550,20cyclictest20740-21/usr/sbin/munin08:55:133
291699530,21cyclictest5961-21/usr/sbin/munin07:15:183
10752480,2sleep11076-21sed09:20:181
17702470,3sleep30-21swapper/311:36:283
291399448,7cyclictest9-21ksoftirqd/011:40:000
139391440,0ptp4l401ktimersoftd/308:07:533
2913994314,7cyclictest9-21ksoftirqd/011:15:260
2913994237,3cyclictest3561-21cron10:35:000
2913994237,3cyclictest3561-21cron10:35:000
139391420,0ptp4l401ktimersoftd/311:40:203
2915994126,3cyclictest33-21ksoftirqd/210:37:142
2914994134,5cyclictest551-21rs:main1
291399410,2cyclictest121rcu_preempt12:30:190
291399404,2cyclictest121rcu_preempt11:40:210
2913994035,2cyclictest9-21ksoftirqd/008:40:000
291399403,3cyclictest121rcu_preempt08:45:270
2913994033,4cyclictest9-21ksoftirqd/012:20:000
291499391,2cyclictest0-21swapper/110:33:441
291499391,2cyclictest0-21swapper/110:33:441
2913993916,2cyclictest9-21ksoftirqd/008:30:180
2914993831,4cyclictest25-21ksoftirqd/108:48:581
291399388,7cyclictest9-21ksoftirqd/007:55:000
291399386,2cyclictest9-21ksoftirqd/010:25:140
291399385,2cyclictest121rcu_preempt10:35:250
291399385,2cyclictest121rcu_preempt08:40:170
291399384,3cyclictest121rcu_preempt11:55:210
291399384,2cyclictest121rcu_preempt09:00:220
2913993833,3cyclictest9-21ksoftirqd/009:30:010
2913993832,3cyclictest9-21ksoftirqd/009:30:250
2913993831,4cyclictest9-21ksoftirqd/008:53:590
2913993829,7cyclictest9-21ksoftirqd/012:30:010
291399382,4cyclictest9-21ksoftirqd/010:10:130
2913993810,4cyclictest9-21ksoftirqd/007:55:270
2913993810,11cyclictest9-21ksoftirqd/010:05:160
291699370,23cyclictest32028-21seq11:34:253
2915993731,4cyclictest33-21ksoftirqd/208:52:282
2915993730,4cyclictest33-21ksoftirqd/209:49:402
291499379,26cyclictest0-21swapper/109:54:541
2914993732,3cyclictest26680-21cron07:59:591
2914993732,3cyclictest25-21ksoftirqd/109:50:011
2914993731,4cyclictest25-21ksoftirqd/108:27:121
2914993731,4cyclictest25-21ksoftirqd/107:42:591
291399374,2cyclictest121rcu_preempt12:10:210
291399374,2cyclictest121rcu_preempt11:30:140
291399374,2cyclictest121rcu_preempt11:20:250
291399374,2cyclictest121rcu_preempt10:00:140
291399374,2cyclictest121rcu_preempt09:10:260
2913993733,2cyclictest9-21ksoftirqd/007:35:250
291399373,2cyclictest121rcu_preempt12:00:260
291399373,2cyclictest121rcu_preempt10:55:180
291399373,2cyclictest121rcu_preempt09:45:130
291399373,2cyclictest121rcu_preempt09:20:280
291399372,3cyclictest121rcu_preempt09:15:240
2916993630,4cyclictest41-21ksoftirqd/309:26:583
291699361,28cyclictest22847-21apt-get11:15:123
2915993630,4cyclictest33-21ksoftirqd/210:26:312
2915993630,4cyclictest33-21ksoftirqd/207:14:322
291399366,11cyclictest9-21ksoftirqd/008:05:190
291399364,7cyclictest121rcu_preempt08:55:140
291399364,7cyclictest121rcu_preempt08:55:130
2913993633,2cyclictest9-21ksoftirqd/007:30:000
291399363,2cyclictest121rcu_preempt11:10:190
291399363,2cyclictest121rcu_preempt07:40:280
2913993631,2cyclictest9-21ksoftirqd/009:05:120
2913993630,3cyclictest9-21ksoftirqd/007:45:140
2913993630,3cyclictest9-21ksoftirqd/007:25:000
291399362,3cyclictest121rcu_preempt11:45:160
291399362,2cyclictest121rcu_preempt12:35:290
291399362,2cyclictest121rcu_preempt11:50:170
291399361,2cyclictest121rcu_preempt08:10:210
2916993530,3cyclictest41-21ksoftirqd/310:00:113
2916993529,4cyclictest41-21ksoftirqd/308:18:273
2916993529,4cyclictest41-21ksoftirqd/307:31:143
2916993529,4cyclictest41-21ksoftirqd/307:31:143
2916993529,3cyclictest41-21ksoftirqd/309:45:193
291699350,19cyclictest105792sleep308:30:263
291599353,2cyclictest121rcu_preempt07:19:342
2915993529,4cyclictest33-21ksoftirqd/209:28:032
2915993529,4cyclictest33-21ksoftirqd/207:44:172
2915993529,3cyclictest33-21ksoftirqd/208:59:512
2915993529,3cyclictest33-21ksoftirqd/208:59:512
2914993529,4cyclictest25-21ksoftirqd/111:46:531
2914993529,4cyclictest25-21ksoftirqd/110:26:061
2914993528,4cyclictest25-21ksoftirqd/108:36:101
291399354,6cyclictest121rcu_preempt12:20:150
291399353,2cyclictest121rcu_preempt11:00:140
291399353,2cyclictest121rcu_preempt11:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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