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2026-07-06 - 15:41
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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 rackdslot3.osadl.org (updated Mon Jul 06, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491224196,19phc2sys0-21swapper/307:09:583
166652206173,22sleep20-21swapper/207:09:292
165732204170,23sleep00-21swapper/007:08:180
164032203170,21sleep10-21swapper/107:06:071
139391920,1ptp4l1951-21/usr/sbin/munin12:15:153
17005996426,5cyclictest9-21ksoftirqd/010:15:140
17005996226,10cyclictest9-21ksoftirqd/012:25:270
17008996127,5cyclictest41-21ksoftirqd/310:35:263
17005996121,8cyclictest9-21ksoftirqd/008:10:160
17008996032,7cyclictest41-21ksoftirqd/312:35:163
17008996031,4cyclictest41-21ksoftirqd/308:00:223
17008996028,9cyclictest41-21ksoftirqd/309:50:013
17008996023,8cyclictest41-21ksoftirqd/311:40:003
17005996026,5cyclictest9-21ksoftirqd/011:55:230
17008995929,4cyclictest41-21ksoftirqd/311:25:203
17008995830,7cyclictest41-21ksoftirqd/308:25:003
17008995830,4cyclictest41-21ksoftirqd/307:40:193
17008995829,7cyclictest41-21ksoftirqd/307:35:003
17008995829,3cyclictest41-21ksoftirqd/310:17:143
17008995824,9cyclictest41-21ksoftirqd/309:05:143
17005995827,8cyclictest9-21ksoftirqd/012:30:190
17005995825,6cyclictest9-21ksoftirqd/007:25:240
17008995727,4cyclictest41-21ksoftirqd/310:05:183
17008995727,4cyclictest41-21ksoftirqd/309:00:003
17008995726,4cyclictest41-21ksoftirqd/310:30:003
17005995725,7cyclictest9-21ksoftirqd/008:40:130
17005995719,4cyclictest9-21ksoftirqd/012:05:250
17008995628,7cyclictest41-21ksoftirqd/307:45:233
17008995628,6cyclictest41-21ksoftirqd/308:00:013
17008995627,6cyclictest41-21ksoftirqd/310:05:003
17008995620,3cyclictest41-21ksoftirqd/310:10:233
17008995615,8cyclictest41-21ksoftirqd/308:25:283
1700599565,9cyclictest9-21ksoftirqd/007:55:260
1700599565,8cyclictest9-21ksoftirqd/011:15:200
17005995625,5cyclictest9-21ksoftirqd/011:50:170
17005995624,5cyclictest9-21ksoftirqd/010:30:160
17005995622,5cyclictest9-21ksoftirqd/010:10:230
17008995528,7cyclictest41-21ksoftirqd/309:50:123
17008995528,7cyclictest41-21ksoftirqd/309:20:003
17008995527,7cyclictest41-21ksoftirqd/310:20:143
17008995526,4cyclictest41-21ksoftirqd/311:40:163
17008995524,7cyclictest41-21ksoftirqd/308:20:003
17008995518,8cyclictest41-21ksoftirqd/308:45:143
17005995526,4cyclictest9-21ksoftirqd/010:05:130
17005995523,7cyclictest9-21ksoftirqd/007:25:000
17008995427,5cyclictest41-21ksoftirqd/308:12:203
17008995426,4cyclictest41-21ksoftirqd/312:14:593
17008995426,4cyclictest41-21ksoftirqd/311:56:043
17008995425,7cyclictest41-21ksoftirqd/309:40:203
17008995425,4cyclictest41-21ksoftirqd/311:30:143
17008995422,7cyclictest41-21ksoftirqd/309:35:233
17008995422,10cyclictest41-21ksoftirqd/308:35:233
17008995419,7cyclictest41-21ksoftirqd/311:50:163
1700599545,8cyclictest9-21ksoftirqd/012:00:200
17008995326,4cyclictest41-21ksoftirqd/307:28:433
17008995326,3cyclictest41-21ksoftirqd/307:18:283
17008995325,3cyclictest41-21ksoftirqd/307:50:273
17008995325,10cyclictest41-21ksoftirqd/310:45:213
17008995324,4cyclictest41-21ksoftirqd/308:10:003
17008995323,4cyclictest41-21ksoftirqd/309:25:533
17008995321,8cyclictest41-21ksoftirqd/311:10:133
1700599536,6cyclictest9-21ksoftirqd/011:40:190
1700599535,8cyclictest9-21ksoftirqd/008:45:230
1700599534,8cyclictest9-21ksoftirqd/012:20:230
17008995221,3cyclictest41-21ksoftirqd/311:05:213
1700599526,8cyclictest9-21ksoftirqd/009:00:160
1700599525,7cyclictest9-21ksoftirqd/009:30:160
1700899516,3cyclictest41-21ksoftirqd/310:50:223
1700899516,3cyclictest41-21ksoftirqd/309:10:173
17008995125,7cyclictest41-21ksoftirqd/312:05:013
17008995124,6cyclictest41-21ksoftirqd/307:20:183
17008995124,4cyclictest41-21ksoftirqd/309:04:193
17008995122,4cyclictest41-21ksoftirqd/312:29:433
17008995116,9cyclictest41-21ksoftirqd/308:50:233
17008995116,4cyclictest41-21ksoftirqd/308:30:193
1700599515,8cyclictest9-21ksoftirqd/009:15:220
1700599515,7cyclictest9-21ksoftirqd/009:05:260
1700599510,7cyclictest9-21ksoftirqd/007:55:000
17008995021,6cyclictest41-21ksoftirqd/309:55:133
17008995021,4cyclictest41-21ksoftirqd/310:55:223
17008995019,7cyclictest41-21ksoftirqd/307:10:153
17008995019,10cyclictest41-21ksoftirqd/310:40:123
17008995017,8cyclictest41-21ksoftirqd/312:10:013
17008995016,4cyclictest41-21ksoftirqd/312:20:193
1700599506,8cyclictest9-21ksoftirqd/009:20:250
1700599505,10cyclictest9-21ksoftirqd/007:35:000
1700599504,9cyclictest9-21ksoftirqd/008:35:140
1700599503,10cyclictest9-21ksoftirqd/008:55:250
17008994916,9cyclictest41-21ksoftirqd/308:40:173
1700599495,10cyclictest9-21ksoftirqd/009:10:150
1700599494,9cyclictest9-21ksoftirqd/007:35:250
1700599490,6cyclictest101ktimersoftd/009:40:000
1700599490,46cyclictest101ktimersoftd/012:10:180
1700899485,3cyclictest41-21ksoftirqd/309:20:143
17008994820,4cyclictest41-21ksoftirqd/307:40:003
17008994815,4cyclictest41-21ksoftirqd/311:45:273
1700599485,9cyclictest9-21ksoftirqd/012:40:010
1700599483,6cyclictest9-21ksoftirqd/011:00:240
1700599481,5cyclictest9-21ksoftirqd/007:15:200
178102470,2sleep20-21swapper/207:10:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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