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2026-09-04 - 16:30
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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 Fri Sep 04, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2651023100,49sleep10-21swapper/107:09:121
1960522200,4sleep219624-21sort07:08:542
3202022170,8sleep00-21swapper/007:08:180
139491205171,23phc2sys0-21swapper/307:08:583
682121410,4sleep22173999cyclictest11:55:162
234362880,2sleep20-21swapper/210:15:152
2173899695,23cyclictest30010-21cron10:30:001
2173899661,26cyclictest11284-21/usr/sbin/munin08:40:221
2173899611,26cyclictest22774-21chrt12:28:521
2173899590,3cyclictest27542-21chrt12:39:201
2173899590,26cyclictest11868-21df_inode07:35:121
2173899571,24cyclictest18913-21idleruntime12:20:181
2173899570,3cyclictest27893-21chrt08:09:461
2173899570,2cyclictest62102chrt07:24:061
2173899570,2cyclictest226922sleep110:12:331
2173899570,25cyclictest8372-21seq09:42:081
2173899561,25cyclictest6661-21dpkg07:25:001
2173899550,24cyclictest21372-21vmstat09:00:261
139391550,1ptp4l401ktimersoftd/309:14:083
2173899541,25cyclictest29696-21awk09:20:161
2173899540,26cyclictest844-21/usr/sbin/munin10:35:181
21737995422,9cyclictest9-21ksoftirqd/010:50:210
2173899530,26cyclictest1010-21taskset07:12:101
21737995326,9cyclictest9-21ksoftirqd/010:35:150
21737995316,8cyclictest9-21ksoftirqd/009:50:260
2173799526,9cyclictest9-21ksoftirqd/011:25:000
2173799526,6cyclictest9-21ksoftirqd/010:00:160
157722520,1sleep10-21swapper/112:15:011
139391520,1ptp4l401ktimersoftd/309:22:403
2173799516,8cyclictest9-21ksoftirqd/010:20:260
2173799515,8cyclictest9-21ksoftirqd/007:15:130
243152500,2sleep00-21swapper/012:30:200
243152500,2sleep00-21swapper/012:30:200
2173899500,1cyclictest0-21swapper/108:13:341
2173799505,8cyclictest9-21ksoftirqd/011:00:140
2173799503,7cyclictest9-21ksoftirqd/008:22:020
2173799502,6cyclictest9-21ksoftirqd/007:10:180
2173799501,7cyclictest9-21ksoftirqd/008:35:150
286442490,3sleep20-21swapper/207:10:582
2173899490,24cyclictest17844-21chrt12:17:261
2173899490,22cyclictest156782sleep107:41:021
2173799496,10cyclictest9-21ksoftirqd/009:55:130
2173799494,9cyclictest9-21ksoftirqd/012:15:200
2173799494,9cyclictest9-21ksoftirqd/009:15:110
2173799493,8cyclictest9-21ksoftirqd/007:35:220
2173899480,44cyclictest320632sleep110:30:591
2173799483,8cyclictest9-21ksoftirqd/007:25:000
2173799483,5cyclictest9-21ksoftirqd/009:35:240
188472480,2sleep20-21swapper/211:10:312
2173899473,23cyclictest545-21gmain11:08:421
2173899472,33cyclictest12919-21idleruntime11:00:161
2173899471,24cyclictest19269-21chrt08:59:081
2173899470,24cyclictest27751-21date10:25:001
2173799475,9cyclictest9-21ksoftirqd/009:50:010
2173799475,8cyclictest9-21ksoftirqd/012:20:140
2173799475,10cyclictest9-21ksoftirqd/007:30:120
2173799473,7cyclictest9-21ksoftirqd/011:25:250
2173799473,5cyclictest9-21ksoftirqd/007:40:240
2173799472,9cyclictest9-21ksoftirqd/007:45:260
2173799472,6cyclictest9-21ksoftirqd/009:45:010
2173799463,6cyclictest9-21ksoftirqd/011:45:250
2173799463,6cyclictest9-21ksoftirqd/008:45:130
2173799463,5cyclictest9-21ksoftirqd/010:40:110
2173799462,9cyclictest9-21ksoftirqd/011:05:590
2173799462,5cyclictest9-21ksoftirqd/010:32:000
2173799461,6cyclictest9-21ksoftirqd/011:50:160
2173799460,11cyclictest9-21ksoftirqd/011:40:150
2173899451,26cyclictest169062chrt08:54:471
2173799456,10cyclictest9-21ksoftirqd/007:25:000
2173799455,9cyclictest9-21ksoftirqd/011:55:230
2173799455,9cyclictest9-21ksoftirqd/011:10:310
2173799455,9cyclictest9-21ksoftirqd/008:30:250
2173799455,4cyclictest9-21ksoftirqd/007:52:270
21740994437,4cyclictest9471-21irqrtprio12:00:193
2173899449,26cyclictest1317-21runrttasks07:31:421
2173899441,31cyclictest17722-21sed07:45:231
2173899440,24cyclictest440-21chrt08:20:021
2173799443,7cyclictest9-21ksoftirqd/010:45:140
2173799443,6cyclictest9-21ksoftirqd/010:20:010
2173799443,6cyclictest9-21ksoftirqd/007:55:230
2173799443,5cyclictest9-21ksoftirqd/011:30:170
2173799442,5cyclictest0-21swapper/009:00:240
2173799441,7cyclictest9-21ksoftirqd/010:10:300
2173799440,7cyclictest9-21ksoftirqd/008:25:190
2173799440,6cyclictest9-21ksoftirqd/012:05:260
2173799440,5cyclictest9-21ksoftirqd/008:55:010
2173799440,5cyclictest0-21swapper/008:00:250
21740994332,7cyclictest41-21ksoftirqd/310:50:163
2173899431,30cyclictest5419-21df_inode10:45:141
2173899430,27cyclictest6183-21chrt09:39:441
2173899430,25cyclictest24086-21irqrtprio08:00:181
2173799431,4cyclictest9-21ksoftirqd/009:30:250
2173899421,30cyclictest17870-21chrt10:02:141
2173799425,9cyclictest9-21ksoftirqd/010:25:190
2173799425,9cyclictest9-21ksoftirqd/009:10:130
2173799425,9cyclictest9-21ksoftirqd/008:15:180
2173799424,8cyclictest0-21swapper/010:05:240
2173799424,7cyclictest9-21ksoftirqd/012:25:270
21737994238,2cyclictest111rcuc/010:55:050
21737994238,2cyclictest111rcuc/009:23:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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