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2026-08-15 - 18:31
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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 Sat Aug 15, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491228167,50phc2sys0-21swapper/307:05:423
46302203170,22sleep10-21swapper/107:05:021
66732202169,22sleep20-21swapper/207:08:532
64402199168,20sleep00-21swapper/007:05:490
268421710,7sleep1722199cyclictest11:30:141
676828363,10sleep10-21swapper/107:10:001
722399681,32cyclictest17016-21perl09:45:153
7221996819,6cyclictest25-21ksoftirqd/109:10:141
7219996834,9cyclictest9-21ksoftirqd/010:14:590
7221996624,6cyclictest25-21ksoftirqd/107:50:191
7221996620,5cyclictest25-21ksoftirqd/110:55:261
7219996631,7cyclictest9-21ksoftirqd/012:20:000
7219996630,6cyclictest9-21ksoftirqd/010:40:130
7222996524,11cyclictest33-21ksoftirqd/207:57:432
7219996531,7cyclictest9-21ksoftirqd/008:10:230
7219996531,6cyclictest9-21ksoftirqd/012:40:000
7219996529,11cyclictest9-21ksoftirqd/007:35:000
722399640,25cyclictest7536-21/usr/sbin/munin08:15:263
7222996428,5cyclictest33-21ksoftirqd/212:19:592
7219996430,4cyclictest9-21ksoftirqd/011:10:140
722399631,25cyclictest1371-21taskset10:20:163
722399630,29cyclictest8949-21taskset09:27:363
722399630,26cyclictest5130-21awk10:25:273
722399630,24cyclictest44712sleep311:34:293
722399630,24cyclictest14434-21apt-get07:25:113
7222996331,4cyclictest33-21ksoftirqd/208:35:202
7222996330,7cyclictest33-21ksoftirqd/208:55:172
7222996330,4cyclictest33-21ksoftirqd/210:35:182
7221996319,5cyclictest25-21ksoftirqd/112:30:151
7219996329,8cyclictest9-21ksoftirqd/008:35:200
7219996329,7cyclictest9-21ksoftirqd/011:50:180
7219996329,5cyclictest9-21ksoftirqd/008:25:170
7219996328,7cyclictest9-21ksoftirqd/007:50:270
7219996328,6cyclictest9-21ksoftirqd/008:55:180
7219996326,8cyclictest9-21ksoftirqd/011:45:280
7219996326,7cyclictest9-21ksoftirqd/011:30:010
7219996326,4cyclictest9-21ksoftirqd/012:05:130
7222996230,4cyclictest33-21ksoftirqd/210:45:192
7222996229,4cyclictest33-21ksoftirqd/207:50:202
7221996223,6cyclictest25-21ksoftirqd/107:25:271
7221996219,6cyclictest25-21ksoftirqd/109:20:161
7219996230,7cyclictest9-21ksoftirqd/011:40:170
7219996230,6cyclictest9-21ksoftirqd/011:20:170
7219996229,6cyclictest9-21ksoftirqd/010:30:150
7219996229,6cyclictest9-21ksoftirqd/010:05:220
7219996229,4cyclictest9-21ksoftirqd/009:55:200
7219996228,7cyclictest9-21ksoftirqd/008:45:000
7219996228,6cyclictest9-21ksoftirqd/011:15:260
7219996228,6cyclictest9-21ksoftirqd/011:05:190
7219996228,6cyclictest9-21ksoftirqd/010:15:270
7219996228,6cyclictest9-21ksoftirqd/010:00:290
7219996228,6cyclictest9-21ksoftirqd/008:15:280
7219996228,6cyclictest9-21ksoftirqd/007:50:010
7219996226,7cyclictest9-21ksoftirqd/010:50:170
7219996226,4cyclictest9-21ksoftirqd/009:45:240
7219996225,7cyclictest9-21ksoftirqd/009:50:180
722399610,23cyclictest29372-21runrttasks11:16:063
722399610,20cyclictest0-21swapper/310:15:273
722399610,19cyclictest0-21swapper/310:05:213
722399610,18cyclictest0-21swapper/312:05:133
7222996130,6cyclictest33-21ksoftirqd/207:40:002
7222996128,6cyclictest33-21ksoftirqd/210:50:202
7221996124,6cyclictest25-21ksoftirqd/109:05:211
7221996123,5cyclictest25-21ksoftirqd/111:00:251
7221996118,6cyclictest25-21ksoftirqd/108:35:191
7219996130,8cyclictest9-21ksoftirqd/009:00:160
7219996129,6cyclictest9-21ksoftirqd/008:00:140
7219996128,7cyclictest9-21ksoftirqd/012:10:020
7219996128,7cyclictest9-21ksoftirqd/009:25:010
7219996128,6cyclictest9-21ksoftirqd/008:55:000
7219996128,10cyclictest9-21ksoftirqd/007:15:250
7219996127,8cyclictest9-21ksoftirqd/008:45:140
7219996127,6cyclictest9-21ksoftirqd/011:55:240
7219996124,7cyclictest9-21ksoftirqd/012:25:180
7219996121,7cyclictest9-21ksoftirqd/008:05:010
7219996121,7cyclictest9-21ksoftirqd/008:05:010
722399601,31cyclictest5405-21awk11:35:173
722399601,22cyclictest21877-21timerandwakeup08:45:263
722399600,29cyclictest10595-21latency_hist08:25:013
722399600,21cyclictest0-21swapper/312:35:203
722399600,18cyclictest0-21swapper/307:35:163
7222996027,6cyclictest33-21ksoftirqd/212:25:182
7222996025,9cyclictest33-21ksoftirqd/210:05:212
7221996024,5cyclictest25-21ksoftirqd/108:00:161
7221996016,6cyclictest25-21ksoftirqd/112:05:121
7221996016,6cyclictest25-21ksoftirqd/109:00:121
7221996016,5cyclictest25-21ksoftirqd/112:10:191
7221996011,7cyclictest25-21ksoftirqd/112:35:281
7219996031,7cyclictest9-21ksoftirqd/009:30:180
7219996031,7cyclictest9-21ksoftirqd/007:55:170
7219996029,7cyclictest9-21ksoftirqd/007:25:190
7219996028,9cyclictest9-21ksoftirqd/010:45:140
7219996028,7cyclictest9-21ksoftirqd/009:40:290
7219996028,7cyclictest9-21ksoftirqd/007:35:140
7219996028,6cyclictest9-21ksoftirqd/012:20:160
7219996028,6cyclictest9-21ksoftirqd/008:20:150
7219996028,12cyclictest9-21ksoftirqd/008:30:230
7219996026,6cyclictest9-21ksoftirqd/009:35:160
7219996026,4cyclictest9-21ksoftirqd/010:40:010
722399591,24cyclictest24470-21chrt08:50:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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