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2025-11-22 - 02:59
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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 Sat Nov 22, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13001218230,120sleep00-21swapper/019:09:400
9755211420,12sleep0101ktimersoftd/023:05:140
1060021078,11sleep010638-21processes21:00:450
3125621045,15sleep01356-21snmpd22:21:460
2842221026,11sleep028448-21which22:10:480
1897121015,13sleep018969-21ntp_states19:30:420
1630221005,11sleep016355-21latency_hist21:25:030
191022965,14sleep019103-21diskstats21:35:240
1310899966,35cyclictest6705-21apt-get22:57:120
13108999650,28cyclictest16511-21aten_r7power_vo21:25:160
188152946,11sleep018831-21ntpq23:40:370
294332934,7sleep00-21swapper/000:23:470
13108999343,16cyclictest10250irq/56-4a10000019:11:090
13108999251,26cyclictest101ktimersoftd/019:20:420
13108999248,30cyclictest3650irq/20-4900000019:42:080
295282915,12sleep029537-21users20:10:480
13108999153,26cyclictest101ktimersoftd/023:50:170
13108999126,30cyclictest792-21haveged23:05:020
13108999045,29cyclictest3650irq/20-4900000022:40:320
13108999041,15cyclictest10250irq/56-4a10000022:51:560
13108999040,35cyclictest11972sleep022:30:550
180992895,11sleep016828-21apt-get19:27:060
13108998960,13cyclictest101ktimersoftd/020:27:100
13108998947,28cyclictest30282-21mailstats00:25:480
28222886,71sleep01356-21snmpd20:33:170
13108998839,33cyclictest0-21swapper/020:20:140
1310899878,19cyclictest1356-21snmpd19:17:210
13108998656,13cyclictest101ktimersoftd/000:17:120
13108998640,30cyclictest3650irq/20-4900000000:30:480
13108998623,47cyclictest101ktimersoftd/021:47:100
141962857,11sleep0101ktimersoftd/021:15:320
13108998550,24cyclictest0-21swapper/020:05:210
13108998532,17cyclictest25572-21runrttasks19:55:380
1310899845,24cyclictest5533-21apt-get20:47:090
13108998452,14cyclictest10150irq/55-4a10000021:50:250
13108998433,17cyclictest10250irq/56-4a10000023:38:190
13108998350,15cyclictest10150irq/55-4a10000023:17:110
13108998318,32cyclictest792-21haveged21:10:040
13108998254,19cyclictest13635-21/usr/sbin/munin23:20:180
13108998239,28cyclictest3650irq/20-4900000023:30:240
13108998236,15cyclictest10250irq/56-4a10000022:06:370
13108998221,46cyclictest101ktimersoftd/020:57:100
1310899818,17cyclictest1356-21snmpd00:36:370
13108998144,27cyclictest0-21swapper/023:55:250
13108998058,13cyclictest101ktimersoftd/000:10:300
13108998049,13cyclictest11349-21ntp_states23:10:440
13108998048,15cyclictest10150irq/55-4a10000021:30:250
13108998020,16cyclictest1356-21snmpd22:18:410
1310899796,55cyclictest7710-21runrttasks20:50:440
13108997928,34cyclictest4575-21sshd22:45:260
13108997926,16cyclictest1837-21/usr/sbin/munin22:35:340
13108997923,43cyclictest0-21swapper/020:00:290
13108997858,13cyclictest101ktimersoftd/019:35:350
13108997853,16cyclictest25789-21/usr/sbin/munin22:00:310
13108997848,15cyclictest10150irq/55-4a10000023:45:270
13108997834,14cyclictest10250irq/56-4a10000022:27:540
13108997829,30cyclictest20212-21wget21:40:140
13108997750,17cyclictest30765-21/usr/sbin/munin20:15:500
13108997748,13cyclictest10150irq/55-4a10000021:10:270
13108997745,14cyclictest10150irq/55-4a10000019:45:280
13108997647,20cyclictest24360-21/usr/sbin/munin19:50:420
13108997645,14cyclictest10150irq/55-4a10000000:00:350
13108997547,12cyclictest10150irq/55-4a10000023:27:180
13108997542,24cyclictest0-21swapper/000:05:130
13108997447,13cyclictest10150irq/55-4a10000021:55:180
13108997446,18cyclictest37302chrt20:35:480
13108997426,34cyclictest0-21swapper/020:40:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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