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2025-12-07 - 16:55
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sun Dec 07, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40187442280,1sleep00-21swapper/007:45:180
3967100992422,1cyclictest0-21swapper/307:30:013
3967100992011,6cyclictest4129482-21turbostat09:15:003
3967100991916,1cyclictest0-21swapper/311:50:193
3967100991916,1cyclictest0-21swapper/308:00:173
3967100991916,1cyclictest0-21swapper/307:15:133
147598190,8rtkit-daemon3967092-21cyclictest12:30:010
396710099187,7cyclictest121791-21turbostat11:10:003
3967100991815,1cyclictest0-21swapper/310:20:013
3967100991815,1cyclictest0-21swapper/310:05:193
3967100991815,1cyclictest0-21swapper/310:00:003
396710099181,13cyclictest4083343-21turbostat08:40:003
396710099181,13cyclictest4040452-21taskset08:05:163
396710099181,13cyclictest178398-21turbostat11:44:593
396710099181,13cyclictest147578-21chrt11:25:173
396710099181,13cyclictest147578-21chrt11:25:173
396710099181,12cyclictest4102224-21sleep08:59:553
396710099181,12cyclictest4070987-21taskset08:30:013
396710099181,12cyclictest138239-21taskset11:20:003
979232171,9sleep197977-21sh10:55:151
396710099177,7cyclictest883172sleep310:47:273
396710099172,12cyclictest267611-21sleep12:40:003
3967100991714,1cyclictest0-21swapper/312:15:193
3967100991714,1cyclictest0-21swapper/311:30:183
3967100991714,1cyclictest0-21swapper/309:40:153
396710099171,13cyclictest4019724-21chrt07:46:413
396710099171,13cyclictest213048-21taskset12:05:173
396710099171,13cyclictest168654-21taskset11:36:033
396710099171,12cyclictest4006575-21taskset07:35:233
396710099171,12cyclictest201504-21taskset11:56:393
396710099170,13cyclictest4192619-21taskset09:51:043
396710099170,12cyclictest4161985-21taskset09:35:013
396710099170,12cyclictest4129715-21taskset09:15:013
2521802170,6sleep0252358-21sed12:30:160
396710099167,6cyclictest2256132sleep312:11:273
396710099166,7cyclictest2494512sleep312:25:303
3967100991615,0cyclictest0-21swapper/308:20:203
3967100991614,1cyclictest0-21swapper/310:55:203
3967100991613,1cyclictest0-21swapper/310:25:203
3967100991613,1cyclictest0-21swapper/309:45:203
3967100991613,1cyclictest0-21swapper/309:00:153
3967100991613,1cyclictest0-21swapper/308:50:193
396710099161,13cyclictest210671-21chrt12:04:213
396710099161,12cyclictest47050-21taskset10:20:293
396710099161,12cyclictest4153973-21taskset09:30:123
396710099161,12cyclictest4152109-21taskset09:26:233
396710099161,12cyclictest4070132-21chrt08:25:283
396710099161,12cyclictest4026069-21chrt07:53:063
396710099161,12cyclictest4008132-21chrt07:40:163
396710099161,12cyclictest3994009-21taskset07:25:253
396710099161,12cyclictest3987729-21chrt07:20:323
396710099161,12cyclictest256411-21taskset12:30:223
396710099161,12cyclictest185622-21taskset11:47:263
396710099161,12cyclictest127003-21taskset11:10:273
396710099161,12cyclictest112184-21taskset11:01:373
396710099161,11cyclictest90262-21taskset10:50:193
396710099161,11cyclictest4089620-21taskset08:44:563
396710099160,9cyclictest73298-21sleep10:44:553
396710099160,13cyclictest4121126-21turbostat09:10:003
85092151,5sleep18536-21munin-run10:00:001
396710099155,7cyclictest4137908-21taskset09:20:143
396710099155,7cyclictest4137908-21taskset09:20:143
3967100991513,1cyclictest0-21swapper/311:20:233
3967100991512,1cyclictest0-21swapper/308:10:193
396710099151,11cyclictest65479-21chrt10:35:083
396710099151,11cyclictest4057820-21taskset08:18:313
396710099151,11cyclictest4026478-21chrt07:55:093
396710099151,11cyclictest3967242-21taskset07:10:063
396710099151,11cyclictest3967242-21taskset07:10:063
396710099151,11cyclictest235511-21taskset12:20:043
396710099151,11cyclictest14710-21taskset10:00:423
396710099150,12cyclictest63445-21chrt10:30:553
396710099150,12cyclictest4095926-21turbostat08:50:003
1696902151,11sleep2720-21snmpd11:38:322
504302140,7sleep051519-21kthreadcore10:25:200
396710099141,11cyclictest30992-21taskset10:10:523
2180572140,11sleep0218064-21sh12:07:390
147598140,1rtkit-daemon0-21swapper/112:12:331
41554212130,9sleep24156803-21grep09:30:202
41382932130,9sleep24138784-21cut09:20:182
41382932130,9sleep24138784-21cut09:20:172
2411242131,2sleep20-21swapper/212:20:242
1487052130,11sleep0149525-21kthreadcore11:25:190
1487052130,11sleep0149525-21kthreadcore11:25:190
147598130,9rtkit-daemon4145612-21cron09:25:001
147598130,9rtkit-daemon4145612-21cron09:25:001
41282762120,9sleep14128282-21ssh09:12:161
41178632120,2sleep14118104-21kthreadcore09:05:181
40342102120,9sleep04035717-21tr08:00:170
40014082121,8sleep24001221-21/usr/sbin/munin07:35:152
2443082123,6sleep2245218-21kthreadcore12:25:172
147598120,7rtkit-daemon1540-21sendmail-mta10:34:542
147598120,5rtkit-daemon214-21plymouthd10:02:480
41529482110,8sleep24152954-21ssh09:28:242
39834532111,6sleep13983485-21kthreadcore07:20:191
39668422110,2sleep30-21swapper/307:08:473
39668422110,2sleep30-21swapper/307:08:473
345132110,8sleep235581-21tr10:15:162
147598110,7rtkit-daemon720-21snmpd08:20:362
147598110,7rtkit-daemon4185114-21ssh09:48:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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