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2026-05-20 - 20:25
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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 rackdslot1.osadl.org (updated Wed May 20, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2042621430,4sleep21891499cyclictest10:40:192
2729121360,6sleep01891299cyclictest09:45:210
18915996733,5cyclictest41-21ksoftirqd/310:40:113
18915996432,4cyclictest41-21ksoftirqd/309:55:183
34542630,6sleep00-21swapper/012:25:120
18915996333,6cyclictest41-21ksoftirqd/309:35:193
18915996329,4cyclictest41-21ksoftirqd/308:05:143
18915996225,8cyclictest41-21ksoftirqd/312:35:223
134491620,4ptp4l26864-21memory07:25:201
18915996133,8cyclictest41-21ksoftirqd/307:25:163
18915996127,3cyclictest41-21ksoftirqd/309:20:173
18915996124,8cyclictest41-21ksoftirqd/311:00:283
18912996133,6cyclictest9-21ksoftirqd/011:10:140
18912996028,4cyclictest9-21ksoftirqd/008:40:010
18912996025,6cyclictest9-21ksoftirqd/008:14:590
208602590,4sleep20-21swapper/209:30:262
134491590,3ptp4l19515-21df09:30:131
18912995818,4cyclictest9-21ksoftirqd/012:30:240
18912995818,4cyclictest9-21ksoftirqd/012:30:240
134491580,4ptp4l0-21swapper/108:58:481
18915995722,7cyclictest41-21ksoftirqd/311:25:163
18915995722,7cyclictest41-21ksoftirqd/310:00:153
18915995719,6cyclictest41-21ksoftirqd/312:25:143
18915995715,3cyclictest23675-21date08:30:003
18912995722,6cyclictest9-21ksoftirqd/008:35:010
18915995623,8cyclictest41-21ksoftirqd/309:50:153
18912995626,4cyclictest9-21ksoftirqd/011:18:160
18912995624,6cyclictest9-21ksoftirqd/008:05:000
134491560,3ptp4l0-21swapper/110:00:511
134491560,2ptp4l32726-21ls07:40:001
134491560,10ptp4l0-21swapper/009:51:040
18915995520,6cyclictest41-21ksoftirqd/308:50:153
1891599550,7cyclictest41-21ksoftirqd/308:35:153
18912995520,4cyclictest9-21ksoftirqd/008:45:270
18912995516,9cyclictest9-21ksoftirqd/010:15:150
134491550,3ptp4l0-21swapper/110:08:171
134491550,3ptp4l0-21swapper/012:20:120
1891599545,7cyclictest41-21ksoftirqd/307:35:123
1891599545,10cyclictest41-21ksoftirqd/312:35:003
1891599545,10cyclictest41-21ksoftirqd/312:35:003
1891599544,7cyclictest41-21ksoftirqd/307:25:013
18915995432,7cyclictest41-21ksoftirqd/308:45:243
18915995420,9cyclictest41-21ksoftirqd/312:05:253
18912995423,4cyclictest9-21ksoftirqd/010:07:240
18912995423,4cyclictest9-21ksoftirqd/007:13:320
134491540,3ptp4l0-21swapper/010:55:170
1891599535,9cyclictest41-21ksoftirqd/308:20:183
1891599535,7cyclictest41-21ksoftirqd/312:20:113
1891599534,8cyclictest41-21ksoftirqd/310:45:133
1891599532,5cyclictest41-21ksoftirqd/308:15:193
18912995324,3cyclictest9-21ksoftirqd/010:23:240
18912995320,4cyclictest9-21ksoftirqd/010:11:580
134491530,4ptp4l0-21swapper/112:35:581
134491530,4ptp4l0-21swapper/107:59:031
1891599525,7cyclictest10731-21cat11:30:163
1891599525,3cyclictest121rcu_preempt09:28:293
1891599525,3cyclictest121rcu_preempt09:28:293
1891599524,7cyclictest41-21ksoftirqd/310:20:003
1891599522,6cyclictest41-21ksoftirqd/309:00:003
18912995226,7cyclictest9-21ksoftirqd/008:20:150
18912995224,6cyclictest9-21ksoftirqd/007:55:220
18912995220,4cyclictest9-21ksoftirqd/007:47:230
18912995219,4cyclictest9-21ksoftirqd/010:45:480
18912995217,4cyclictest9-21ksoftirqd/011:38:310
18912995217,4cyclictest9-21ksoftirqd/009:30:590
134491520,4ptp4l0-21swapper/210:10:362
134491520,4ptp4l0-21swapper/108:41:061
134491520,3ptp4l0-21swapper/109:35:271
134491520,10ptp4l16792-21df07:05:130
1891599515,8cyclictest41-21ksoftirqd/307:40:183
1891599515,7cyclictest41-21ksoftirqd/310:35:123
1891599515,7cyclictest41-21ksoftirqd/310:05:123
1891599514,7cyclictest41-21ksoftirqd/312:00:003
1891599514,7cyclictest41-21ksoftirqd/310:20:283
1891599514,3cyclictest41-21ksoftirqd/308:10:213
1891599513,8cyclictest41-21ksoftirqd/312:05:003
1891599512,7cyclictest41-21ksoftirqd/310:55:163
1891599512,7cyclictest0-21swapper/311:06:583
1891599512,5cyclictest41-21ksoftirqd/310:10:243
18915995124,7cyclictest41-21ksoftirqd/312:15:253
1891599511,6cyclictest41-21ksoftirqd/311:10:283
1891599510,7cyclictest41-21ksoftirqd/307:10:143
18912995121,5cyclictest9-21ksoftirqd/010:35:100
18912995121,3cyclictest9-21ksoftirqd/007:51:510
18912995121,3cyclictest9-21ksoftirqd/007:44:590
18912995117,4cyclictest9-21ksoftirqd/009:23:160
134491510,3ptp4l0-21swapper/112:21:301
1891599505,7cyclictest41-21ksoftirqd/309:10:263
1891599505,5cyclictest41-21ksoftirqd/309:50:003
1891599503,6cyclictest41-21ksoftirqd/311:50:143
1891599503,6cyclictest41-21ksoftirqd/309:30:253
1891599503,6cyclictest41-21ksoftirqd/307:45:213
1891599501,6cyclictest0-21swapper/307:55:093
1891599500,11cyclictest41-21ksoftirqd/310:50:173
18912995020,4cyclictest9-21ksoftirqd/011:25:510
18912995018,5cyclictest9-21ksoftirqd/010:30:130
18912995018,5cyclictest9-21ksoftirqd/008:56:080
18912995017,6cyclictest9-21ksoftirqd/011:30:210
18912995017,4cyclictest9-21ksoftirqd/008:06:010
18912995015,4cyclictest9-21ksoftirqd/011:50:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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