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2026-03-28 - 00:37
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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 Fri Mar 27, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123502206174,21sleep10-21swapper/107:07:061
139491205172,22phc2sys0-21swapper/307:07:523
125162203169,23sleep20-21swapper/207:09:072
125192201167,23sleep00-21swapper/007:09:090
2280121160,3sleep10-21swapper/107:30:151
139391930,1ptp4l401ktimersoftd/312:00:193
1258628263,11sleep30-21swapper/307:10:003
12878996332,6cyclictest9-21ksoftirqd/012:10:000
12878996329,9cyclictest9-21ksoftirqd/011:30:120
12878996231,7cyclictest9-21ksoftirqd/011:35:170
12878996231,6cyclictest9-21ksoftirqd/011:25:230
12878996231,4cyclictest9-21ksoftirqd/011:15:240
12878996227,10cyclictest9-21ksoftirqd/012:30:160
1287999619,12cyclictest5640-21sed12:30:281
12878996129,6cyclictest9-21ksoftirqd/009:55:130
12878996128,7cyclictest9-21ksoftirqd/011:20:240
12878996127,5cyclictest9-21ksoftirqd/008:55:020
12878996126,7cyclictest9-21ksoftirqd/012:20:220
12878996126,7cyclictest9-21ksoftirqd/009:15:000
12878996029,6cyclictest9-21ksoftirqd/007:50:140
12878996029,10cyclictest9-21ksoftirqd/007:19:080
12878996029,10cyclictest9-21ksoftirqd/007:19:070
12878996028,6cyclictest9-21ksoftirqd/007:25:250
12878996028,4cyclictest9-21ksoftirqd/008:30:130
12878996027,6cyclictest9-21ksoftirqd/010:20:180
12878996027,5cyclictest9-21ksoftirqd/010:05:000
12878996026,6cyclictest9-21ksoftirqd/010:50:190
12878996026,4cyclictest9-21ksoftirqd/007:40:140
12878995930,5cyclictest9-21ksoftirqd/010:29:510
12878995929,5cyclictest9-21ksoftirqd/008:25:210
12878995929,5cyclictest9-21ksoftirqd/008:25:200
12878995929,4cyclictest9-21ksoftirqd/007:25:000
12878995928,5cyclictest9-21ksoftirqd/010:40:120
12878995927,5cyclictest9-21ksoftirqd/008:35:220
12878995926,6cyclictest9-21ksoftirqd/012:15:160
12878995926,6cyclictest9-21ksoftirqd/010:05:160
12878995923,7cyclictest9-21ksoftirqd/007:35:000
12878995922,4cyclictest9-21ksoftirqd/007:45:250
12878995922,4cyclictest9-21ksoftirqd/007:45:250
1287999584,11cyclictest25463-21cut07:35:171
1287999584,11cyclictest18552-21cut07:20:181
12878995828,6cyclictest9-21ksoftirqd/012:35:160
12878995827,6cyclictest9-21ksoftirqd/009:15:260
12878995827,5cyclictest9-21ksoftirqd/009:55:010
1287999575,11cyclictest22656-21df_abs09:45:141
1287999575,11cyclictest11855-21fschecks_time10:30:161
1287999574,10cyclictest0-21swapper/109:55:281
12878995728,6cyclictest9-21ksoftirqd/011:05:130
12878995727,6cyclictest9-21ksoftirqd/010:55:190
12878995727,5cyclictest9-21ksoftirqd/010:45:150
12878995726,6cyclictest9-21ksoftirqd/008:20:170
12878995726,5cyclictest9-21ksoftirqd/008:45:170
12878995726,5cyclictest9-21ksoftirqd/008:15:120
12878995725,4cyclictest9-21ksoftirqd/009:30:260
12878995725,4cyclictest9-21ksoftirqd/009:00:180
12878995724,6cyclictest9-21ksoftirqd/011:10:220
12878995723,4cyclictest9-21ksoftirqd/012:25:160
12878995719,10cyclictest9-21ksoftirqd/009:40:230
1287999565,9cyclictest3040-21date09:05:001
1287999564,12cyclictest6795-21tr11:25:241
1287999564,11cyclictest13524-21cut09:25:181
12878995629,7cyclictest9-21ksoftirqd/011:40:170
12878995628,6cyclictest9-21ksoftirqd/008:10:140
12878995628,5cyclictest9-21ksoftirqd/010:30:190
12878995626,5cyclictest9-21ksoftirqd/011:00:120
12878995625,10cyclictest9-21ksoftirqd/012:00:150
12878995624,6cyclictest9-21ksoftirqd/010:10:190
12878995624,5cyclictest9-21ksoftirqd/007:35:130
12878995623,6cyclictest9-21ksoftirqd/008:05:140
1287999555,11cyclictest483-21cat09:00:001
1287999555,10cyclictest32710-21sshd11:15:021
1287999554,11cyclictest5146-21date11:25:011
1287999554,11cyclictest24398-21/usr/sbin/munin12:05:211
1287999554,11cyclictest1700-21date07:55:011
1287999554,10cyclictest32466-21/usr/sbin/munin10:05:171
1287999554,10cyclictest17337-21/usr/sbin/munin11:50:121
12878995527,5cyclictest9-21ksoftirqd/008:00:150
12878995525,4cyclictest9-21ksoftirqd/009:20:190
12878995524,4cyclictest9-21ksoftirqd/007:55:180
12878995518,7cyclictest9-21ksoftirqd/008:55:120
1287999546,9cyclictest27450-21users08:45:261
1287999546,11cyclictest16292-21taskset07:15:181
1287999546,11cyclictest16292-21taskset07:15:181
1287999543,18cyclictest0-21swapper/107:40:171
1287999543,11cyclictest3951-21latency_hist12:30:001
1287999543,11cyclictest0-21swapper/111:35:231
1287999543,10cyclictest31377-21latency_hist12:20:001
12878995430,4cyclictest9-21ksoftirqd/010:35:230
12878995425,6cyclictest9-21ksoftirqd/007:10:130
12878995424,6cyclictest9-21ksoftirqd/012:10:140
123442540,2sleep20-21swapper/210:30:202
1287899533,6cyclictest9-21ksoftirqd/009:40:000
12878995325,5cyclictest9-21ksoftirqd/009:05:220
12878995325,4cyclictest9-21ksoftirqd/011:47:320
12878995310,3cyclictest9-21ksoftirqd/009:45:190
1287999526,9cyclictest20557-21/usr/sbin/munin09:40:171
1287999524,8cyclictest3233-21cpuspeed_turbos09:05:141
1287999524,11cyclictest24674-21gzip08:40:221
1287999523,10cyclictest22030-21/usr/sbin/munin12:00:181
12878995221,9cyclictest9-21ksoftirqd/011:50:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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