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2026-07-30 - 18:00
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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 rackdslot4.osadl.org (updated Thu Jul 30, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169682210177,22sleep10-21swapper/107:06:001
138591206172,23phc2sys0-21swapper/307:07:413
170042203170,22sleep20-21swapper/207:06:292
172032201167,22sleep00-21swapper/007:09:050
2818921560,5sleep11757699cyclictest09:35:201
17577998635,8cyclictest33-21ksoftirqd/209:23:512
1757699829,11cyclictest654-21polkitd08:52:091
1757699829,11cyclictest654-21polkitd08:52:091
17577997531,5cyclictest33-21ksoftirqd/209:30:512
17577997224,9cyclictest33-21ksoftirqd/211:50:252
17577997127,4cyclictest33-21ksoftirqd/211:40:152
17577997031,16cyclictest33-21ksoftirqd/210:25:172
17577996932,5cyclictest33-21ksoftirqd/208:55:002
17577996932,5cyclictest33-21ksoftirqd/208:55:002
17577996828,9cyclictest33-21ksoftirqd/207:50:172
17577996732,6cyclictest33-21ksoftirqd/209:36:122
17577996623,8cyclictest33-21ksoftirqd/207:25:132
17577996529,10cyclictest33-21ksoftirqd/211:25:122
17577996528,9cyclictest33-21ksoftirqd/210:45:002
17577996528,9cyclictest33-21ksoftirqd/210:45:002
17577996522,4cyclictest33-21ksoftirqd/210:20:162
17577996520,4cyclictest33-21ksoftirqd/207:55:142
17577996419,9cyclictest33-21ksoftirqd/211:00:132
138491640,1ptp4l401ktimersoftd/309:07:143
17577996327,9cyclictest33-21ksoftirqd/212:25:152
17577996327,5cyclictest33-21ksoftirqd/211:25:002
17577996324,5cyclictest33-21ksoftirqd/207:20:012
17577996226,9cyclictest33-21ksoftirqd/211:15:262
17577996225,9cyclictest33-21ksoftirqd/212:05:152
17577996223,8cyclictest33-21ksoftirqd/209:45:162
17577996223,8cyclictest33-21ksoftirqd/208:30:202
17577996126,5cyclictest33-21ksoftirqd/210:55:232
1757699611,25cyclictest7664-21smartctl10:00:141
17576996110,10cyclictest7472-21chrt11:05:181
17575996129,10cyclictest9-21ksoftirqd/012:05:200
17577996028,9cyclictest33-21ksoftirqd/207:10:222
17577996027,8cyclictest33-21ksoftirqd/212:30:142
17577996019,4cyclictest33-21ksoftirqd/208:40:142
17576996011,8cyclictest21769-21sshd09:23:501
17575996022,10cyclictest9-21ksoftirqd/007:20:120
159912600,2sleep10-21swapper/112:25:211
17577995925,9cyclictest33-21ksoftirqd/212:00:222
1757699598,15cyclictest21218-21unixbench_multi10:25:251
17577995832,3cyclictest33-21ksoftirqd/210:05:132
17577995825,8cyclictest33-21ksoftirqd/212:15:222
17577995825,8cyclictest33-21ksoftirqd/211:10:242
17577995824,5cyclictest33-21ksoftirqd/208:00:132
17577995817,8cyclictest33-21ksoftirqd/212:35:192
1757599581,6cyclictest9-21ksoftirqd/007:40:000
149982580,3sleep114993-21fschecks_time09:10:171
17577995724,8cyclictest33-21ksoftirqd/208:25:222
17577995723,8cyclictest33-21ksoftirqd/211:35:242
17577995722,9cyclictest33-21ksoftirqd/208:35:122
17577995721,6cyclictest33-21ksoftirqd/212:20:242
17577995718,7cyclictest33-21ksoftirqd/210:30:232
1757699578,11cyclictest19195-21apt-key11:30:001
17575995726,9cyclictest9-21ksoftirqd/011:55:130
17575995725,4cyclictest9-21ksoftirqd/008:52:090
17575995725,4cyclictest9-21ksoftirqd/008:52:090
82562560,2sleep00-21swapper/011:05:250
17577995624,9cyclictest33-21ksoftirqd/210:50:152
17577995621,3cyclictest33-21ksoftirqd/210:05:002
1757699569,10cyclictest25556-21fschecks_count07:25:141
1757699568,10cyclictest11025-21grep11:10:261
17575995625,10cyclictest9-21ksoftirqd/010:10:010
17575995621,7cyclictest9-21ksoftirqd/007:25:230
17577995521,5cyclictest33-21ksoftirqd/207:40:242
17577995520,7cyclictest33-21ksoftirqd/209:53:042
17577995517,6cyclictest33-21ksoftirqd/209:10:242
17577995517,5cyclictest33-21ksoftirqd/210:10:242
17577995517,5cyclictest33-21ksoftirqd/209:00:122
1757699559,11cyclictest12154-21systemd-cgroups08:02:341
1757699558,11cyclictest22400-21/usr/sbin/munin11:35:121
1757699556,12cyclictest7645-21grep12:10:181
17576995510,11cyclictest18986-21ps07:10:231
17577995433,3cyclictest33-21ksoftirqd/211:10:012
17577995418,7cyclictest33-21ksoftirqd/207:20:262
17577995417,6cyclictest33-21ksoftirqd/209:55:152
17577995417,5cyclictest33-21ksoftirqd/210:35:202
17577995417,5cyclictest33-21ksoftirqd/209:40:152
17577995416,6cyclictest33-21ksoftirqd/208:55:232
1757699546,10cyclictest29536-21expr10:45:121
1757599545,9cyclictest9-21ksoftirqd/010:25:140
17575995428,9cyclictest9-21ksoftirqd/007:55:010
17577995319,4cyclictest33-21ksoftirqd/211:55:432
1757699537,11cyclictest5462-21/usr/sbin/munin07:50:131
1757699537,10cyclictest574-21/usr/sbin/munin11:55:211
1757699536,11cyclictest30684-21awk11:50:231
1757699536,11cyclictest3021-21sed10:55:181
1757699536,10cyclictest22587-21sed09:25:141
17575995328,10cyclictest9-21ksoftirqd/009:05:120
17575995326,9cyclictest9-21ksoftirqd/007:10:110
17575995320,4cyclictest9-21ksoftirqd/008:30:000
17575995320,4cyclictest9-21ksoftirqd/008:10:000
17575995316,8cyclictest9-21ksoftirqd/010:00:140
1757799526,6cyclictest33-21ksoftirqd/212:10:192
17577995222,5cyclictest33-21ksoftirqd/210:45:122
17577995219,3cyclictest33-21ksoftirqd/210:15:212
17577995218,5cyclictest33-21ksoftirqd/211:45:092
17577995215,5cyclictest33-21ksoftirqd/208:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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