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2026-03-15 - 12:24
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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 376 highest latencies:
System rackcslot4.osadl.org (updated Sun Mar 15, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40172092268196,27sleep10-21swapper/119:09:411
40168922248213,20sleep00-21swapper/019:06:190
179699730,8rtkit-daemon0-21swapper/121:17:531
41760952620,4sleep14176094-21sed23:40:241
179699570,4rtkit-daemon1795-21rtkit-daemon19:59:070
179699560,6rtkit-daemon1795-21rtkit-daemon22:49:011
179699530,4rtkit-daemon1795-21rtkit-daemon23:23:591
119682510,3sleep0161rcuc/000:25:180
41548012500,7sleep00-21swapper/023:10:250
179699500,4rtkit-daemon1795-21rtkit-daemon21:55:451
179699500,4rtkit-daemon1795-21rtkit-daemon20:38:471
179699500,3rtkit-daemon1795-21rtkit-daemon21:45:141
179699500,3rtkit-daemon1795-21rtkit-daemon20:46:041
179699490,4rtkit-daemon1795-21rtkit-daemon20:29:131
179699480,3rtkit-daemon1795-21rtkit-daemon20:22:311
179699470,3rtkit-daemon1795-21rtkit-daemon20:43:201
179699450,11rtkit-daemon4093839-21ssh21:46:040
40582692430,2sleep04058178-21apt-key20:50:020
179699420,7rtkit-daemon698-21rm00:06:161
41250012410,5sleep04125002-21cat22:30:190
401735999419,7cyclictest26-21ksoftirqd/120:20:011
179699410,4rtkit-daemon4038795-21ntpq20:00:200
179699410,3rtkit-daemon0-21swapper/023:57:360
401735999401,15cyclictest15056-21apt-get00:30:121
401735999384,7cyclictest26-21ksoftirqd/122:40:001
401735999376,5cyclictest4069867-21unin-run21:15:011
179699370,5rtkit-daemon4033725-21apt-get19:50:131
179699370,3rtkit-daemon0-21swapper/121:21:400
179699370,3rtkit-daemon0-21swapper/119:11:171
401735999361,8cyclictest26-21ksoftirqd/122:20:001
179699360,5rtkit-daemon4159235-21pool-udisksd23:17:150
179699360,3rtkit-daemon0-21swapper/122:27:521
179699360,3rtkit-daemon0-21swapper/122:07:501
179699360,3rtkit-daemon0-21swapper/023:54:241
401735999351,9cyclictest26-21ksoftirqd/100:10:241
401735999350,8cyclictest26-21ksoftirqd/123:00:011
179699350,3rtkit-daemon0-21swapper/121:30:030
401735999340,7cyclictest8122-21taskset00:20:141
401735999332,7cyclictest26-21ksoftirqd/120:00:001
401735999332,6cyclictest26-21ksoftirqd/123:05:021
401735999331,7cyclictest26-21ksoftirqd/119:50:001
179699330,4rtkit-daemon1795-21rtkit-daemon21:51:310
179699330,3rtkit-daemon1795-21rtkit-daemon23:32:031
179699330,3rtkit-daemon0-21swapper/123:46:520
179699330,3rtkit-daemon0-21swapper/120:58:510
179699330,3rtkit-daemon0-21swapper/023:52:320
401735999327,8cyclictest26-21ksoftirqd/120:00:171
401735999321,7cyclictest26-21ksoftirqd/123:55:231
401735999320,8cyclictest26-21ksoftirqd/121:00:241
401735999320,8cyclictest26-21ksoftirqd/100:00:151
401735499320,7cyclictest4131334-21ls22:39:590
179699320,4rtkit-daemon1795-21rtkit-daemon22:42:581
179699320,3rtkit-daemon1795-21rtkit-daemon23:38:381
179699320,3rtkit-daemon0-21swapper/123:28:320
179699320,3rtkit-daemon0-21swapper/019:34:251
179699320,1rtkit-daemon1795-21rtkit-daemon20:45:140
401735999317,8cyclictest26-21ksoftirqd/123:00:021
401735999313,8cyclictest251rcuc/100:25:221
4017359993114,11cyclictest4153556-21apt-get23:10:161
401735999311,10cyclictest26-21ksoftirqd/121:29:121
401735999310,8cyclictest5256-21apt-get00:15:131
179699310,4rtkit-daemon1795-21rtkit-daemon22:46:310
179699310,4rtkit-daemon1795-21rtkit-daemon22:23:461
179699310,4rtkit-daemon1795-21rtkit-daemon19:20:400
179699310,3rtkit-daemon1795-21rtkit-daemon00:03:310
179699310,3rtkit-daemon0-21swapper/122:53:250
179699310,3rtkit-daemon0-21swapper/122:21:330
179699310,3rtkit-daemon0-21swapper/122:19:560
179699310,3rtkit-daemon0-21swapper/023:29:011
179699310,3rtkit-daemon0-21swapper/000:38:301
401735999301,8cyclictest26-21ksoftirqd/122:10:221
401735999301,8cyclictest26-21ksoftirqd/120:55:191
401735999301,7cyclictest4081008-21apt-get21:30:121
401735999300,9cyclictest4041938-21/usr/sbin/munin20:10:201
401735999300,9cyclictest26-21ksoftirqd/123:45:191
401735999300,7cyclictest26-21ksoftirqd/122:00:231
401735999300,7cyclictest26-21ksoftirqd/121:50:241
401735999300,10cyclictest4064266-21/usr/sbin/munin21:05:171
179699300,4rtkit-daemon0-21swapper/121:01:400
179699300,3rtkit-daemon0-21swapper/019:38:391
401735999296,8cyclictest26-21ksoftirqd/119:25:171
401735999296,7cyclictest4058875-21idleruntime20:50:191
401735999291,8cyclictest26-21ksoftirqd/123:15:201
401735999291,8cyclictest26-21ksoftirqd/119:20:151
401735999290,9cyclictest26-21ksoftirqd/122:30:161
401735999290,8cyclictest26-21ksoftirqd/121:35:231
179699290,3rtkit-daemon0-21swapper/119:14:340
179699290,3rtkit-daemon0-21swapper/100:24:270
401735999282,9cyclictest26-21ksoftirqd/120:06:231
401735999280,8cyclictest26-21ksoftirqd/121:20:201
179699280,3rtkit-daemon0-21swapper/122:43:260
179699280,3rtkit-daemon0-21swapper/122:06:020
401735999271,7cyclictest251rcuc/119:15:221
401735999270,8cyclictest26-21ksoftirqd/119:40:231
179699270,3rtkit-daemon0-21swapper/123:01:070
179699270,3rtkit-daemon0-21swapper/122:59:450
179699270,3rtkit-daemon0-21swapper/120:39:510
179699270,2rtkit-daemon0-21swapper/100:34:190
401735999263,6cyclictest26-21ksoftirqd/122:50:241
401735999261,6cyclictest26-21ksoftirqd/120:30:251
401735999260,9cyclictest26-21ksoftirqd/121:40:131
401735499261,8cyclictest4171009-21munin-run23:35:010
401735499260,6cyclictest4044683-21head20:15:180
179699260,3rtkit-daemon0-21swapper/120:43:270
4017354992521,2cyclictest4047834-21taskset20:22:580
4017354992517,5cyclictest4078740-21ssh21:25:340
4017354992513,8cyclictest4101381-1kworker/u9:122:10:120
179699250,19rtkit-daemon4017348-21cyclictest22:00:370
179699250,19rtkit-daemon1795-21rtkit-daemon22:25:450
4017354992414,5cyclictest4066037-21diskmemload00:36:390
401735499241,15cyclictest4064285-21apt-get21:05:130
179699240,1rtkit-daemon1795-21rtkit-daemon19:34:290
401735499232,6cyclictest4048940-21cut20:25:200
401735499232,14cyclictest4192988-21apt-get00:05:140
401735499232,14cyclictest4031777-21apt-get19:45:140
179699230,3rtkit-daemon1795-21rtkit-daemon00:15:430
401735499223,11cyclictest4029828-21apt-get19:40:130
4017354992213,7cyclictest4152167-21sshd23:07:180
4017354992212,8cyclictest4070661-21irqstats21:15:190
401735499212,13cyclictest4084720-21apt-get21:35:130
401735499207,11cyclictest4040851-21pmu-power20:05:210
401735499202,13cyclictest4023956-21apt-get19:25:120
4017354992012,6cyclictest4088222-21sort21:40:130
4017354992011,7cyclictest4028199-21grep19:35:170
4017354992010,8cyclictest4099952-21expr21:55:150
401735499200,5cyclictest0-21swapper/000:10:250
401735499197,10cyclictest4175602-21ntp_kernel_err23:40:200
401735499196,11cyclictest4043703-21cron20:15:000
401735499195,3cyclictest141rcu_preempt23:40:000
4017354991913,4cyclictest4163329-21ssh23:23:300
4017354991813,3cyclictest4019435-21munin-node19:15:030
4017354991811,5cyclictest4035240-21seq19:52:390
401735499181,11cyclictest4066305-21apt-get21:10:100
4017354991810,6cyclictest4050259-21cat20:30:140
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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