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2026-08-28 - 22:38
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack7slot8.osadl.org (updated Fri Aug 28, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25505219823,147sleep025506-21memory19:05:360
263719911233,38cyclictest7082-21df20:00:160
263719910462,29cyclictest101ktimersoftd/019:15:220
263719910279,14cyclictest0-21swapper/019:10:030
263719910060,24cyclictest101ktimersoftd/021:57:090
263719910040,44cyclictest32566-21apt-get19:36:180
263719910037,20cyclictest5899-21sed00:10:100
26371999932,35cyclictest27317-21chrt21:20:140
26371999624,21cyclictest2906-21munin-run00:00:080
26371999623,55cyclictest12333-21sshd00:31:320
26371999554,24cyclictest101ktimersoftd/021:32:090
26371999516,38cyclictest10025-21apt-get22:17:060
26371999453,25cyclictest101ktimersoftd/020:47:090
26371999434,33cyclictest10250irq/56-4a10000019:48:060
26371999349,28cyclictest3650irq/20-4900000021:25:370
26371999337,18cyclictest13890-21sshd00:38:100
26371999328,31cyclictest14397-21wget20:30:130
26371999250,31cyclictest11297-21seq20:16:200
26371999143,30cyclictest29343-21basename23:35:310
26371999141,30cyclictest25360-21run-parts23:20:010
26371999131,44cyclictest3298-21apt-config00:00:200
26371999047,31cyclictest7634-21basename00:15:150
26371999045,33cyclictest1408-21nginx22:07:090
26371999040,16cyclictest10250irq/56-4a10000021:52:070
26371999032,41cyclictest0-21swapper/019:22:520
26371999018,32cyclictest1305-21snmpd20:08:030
26371999012,59cyclictest16514-21sshd20:38:170
26371998964,11cyclictest101ktimersoftd/023:50:510
26371998919,34cyclictest16963-21diskstats22:45:230
26371998915,57cyclictest1305-21snmpd21:48:240
26371998914,35cyclictest28219-21df_inode23:30:440
26371998843,30cyclictest3650irq/20-4900000023:10:230
26371998839,32cyclictest10150irq/55-4a10000019:35:030
26371998839,30cyclictest5731-21aten_r7power_vo19:55:140
26371998823,30cyclictest787-21haveged19:30:030
26371998815,19cyclictest26957-21diskstats23:25:300
2637199879,40cyclictest14618-21/usr/sbin/munin22:35:370
2637199876,16cyclictest5814-21apt-get00:12:190
26371998745,24cyclictest0-21swapper/020:28:070
26371998738,32cyclictest10250irq/56-4a10000022:44:120
26371998721,23cyclictest26158-21diskstats21:15:230
26371998631,17cyclictest10313-21runrttasks20:13:290
26371998615,36cyclictest19638-21ntp_states22:55:400
26371998561,11cyclictest101ktimersoftd/020:40:250
26371998553,15cyclictest10150irq/55-4a10000019:50:240
26371998523,47cyclictest254362sleep021:11:440
26371998514,33cyclictest25729-21fw_forwarded_lo23:20:280
26371998447,27cyclictest0-21swapper/022:20:320
26371998434,17cyclictest19751-21basename20:50:130
26371998433,16cyclictest8322chrt21:41:230
26371998418,27cyclictest1408-21nginx21:37:540
26371998324,41cyclictest20998-21wget20:55:130
26371998324,41cyclictest1408-21nginx19:41:300
26371998323,40cyclictest787-21haveged00:25:040
26371998316,33cyclictest20719-21df23:00:320
26371998315,49cyclictest18236-21cat22:50:250
26371998234,11cyclictest101ktimersoftd/022:25:240
26371998212,34cyclictest1305-21snmpd23:08:410
26371998057,10cyclictest101ktimersoftd/022:33:340
26371998035,35cyclictest22429-21df_inode21:00:200
26371998034,31cyclictest101ktimersoftd/000:25:230
26371998019,20cyclictest8254-21fw_forwarded_lo22:10:260
26371997950,20cyclictest31203-21runrttasks23:41:440
26371997912,49cyclictest11976-21wget20:20:150
26371997812,32cyclictest5740-21df_inode22:00:200
26371997744,22cyclictest23661-21runrttasks21:05:180
26371997647,12cyclictest10150irq/55-4a10000023:45:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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