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2026-05-24 - 07:32
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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 highest latencies:
System rackdslot1.osadl.org (updated Sun May 24, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1998021650,2sleep01356299cyclictest00:00:170
127621510,7sleep01356299cyclictest19:50:260
615521370,5sleep21356499cyclictest21:10:282
13563996934,7cyclictest25-21ksoftirqd/121:35:201
13563996932,8cyclictest25-21ksoftirqd/122:05:271
13563996534,3cyclictest25-21ksoftirqd/123:05:011
13563996533,7cyclictest25-21ksoftirqd/121:45:281
134491650,19ptp4l16269-21/usr/sbin/munin21:35:133
13563996430,4cyclictest25-21ksoftirqd/122:10:161
13563996429,4cyclictest25-21ksoftirqd/121:15:151
13562996328,4cyclictest9-21ksoftirqd/019:45:010
13563996230,3cyclictest25-21ksoftirqd/119:20:281
13563996229,3cyclictest25-21ksoftirqd/121:55:151
13563996219,8cyclictest25-21ksoftirqd/122:00:161
134491620,19ptp4l3342-21ntp_states19:55:242
13562996125,7cyclictest9-21ksoftirqd/022:04:590
13563996030,3cyclictest25-21ksoftirqd/123:30:301
134491600,4ptp4l0-21swapper/321:15:173
13563995929,4cyclictest25-21ksoftirqd/123:10:011
13563995927,3cyclictest25-21ksoftirqd/123:20:181
13562995928,4cyclictest9-21ksoftirqd/019:30:240
13562995926,4cyclictest9-21ksoftirqd/000:34:300
13562995926,3cyclictest9-21ksoftirqd/020:40:270
230012580,4sleep30-21swapper/319:30:003
13563995831,3cyclictest25-21ksoftirqd/120:30:231
13563995828,4cyclictest25-21ksoftirqd/121:32:491
13563995826,3cyclictest25-21ksoftirqd/119:45:291
13563995826,3cyclictest25-21ksoftirqd/100:25:281
13562995830,4cyclictest9-21ksoftirqd/020:38:350
13562995828,8cyclictest9-21ksoftirqd/023:12:560
13562995826,4cyclictest9-21ksoftirqd/022:10:130
13562995823,4cyclictest9-21ksoftirqd/020:15:140
13562995820,5cyclictest9-21ksoftirqd/000:10:270
13563995722,10cyclictest25-21ksoftirqd/123:58:481
13563995721,4cyclictest25-21ksoftirqd/120:00:251
13562995727,4cyclictest9-21ksoftirqd/021:40:180
13562995725,3cyclictest121rcu_preempt22:10:000
134491570,4ptp4l0-21swapper/219:51:032
134491570,3ptp4l0-21swapper/323:05:143
13563995627,3cyclictest25-21ksoftirqd/120:25:171
13563995624,4cyclictest25-21ksoftirqd/122:39:061
13563995623,4cyclictest25-21ksoftirqd/100:05:271
13563995621,3cyclictest25-21ksoftirqd/100:20:241
13563995614,3cyclictest25-21ksoftirqd/122:45:011
13562995626,3cyclictest9-21ksoftirqd/022:35:150
13562995623,4cyclictest9-21ksoftirqd/021:50:200
134491560,3ptp4l0-21swapper/220:18:152
134491560,13ptp4l0-21swapper/200:10:182
13563995523,4cyclictest25-21ksoftirqd/121:20:241
13562995531,3cyclictest9-21ksoftirqd/000:36:590
13562995525,4cyclictest9-21ksoftirqd/023:00:130
13562995525,3cyclictest9-21ksoftirqd/019:20:130
13562995522,7cyclictest9-21ksoftirqd/021:04:590
13563995426,4cyclictest25-21ksoftirqd/120:20:011
13563995425,4cyclictest25-21ksoftirqd/120:20:201
13563995419,5cyclictest25-21ksoftirqd/122:16:101
13562995426,4cyclictest9-21ksoftirqd/021:15:160
13562995425,4cyclictest9-21ksoftirqd/023:50:170
13562995421,4cyclictest9-21ksoftirqd/000:10:000
134491540,4ptp4l0-21swapper/200:29:492
134491540,3ptp4l0-21swapper/223:55:232
134491540,3ptp4l0-21swapper/223:35:192
13563995322,3cyclictest25-21ksoftirqd/100:00:171
13562995324,4cyclictest9-21ksoftirqd/022:55:360
134491530,4ptp4l0-21swapper/221:40:132
134491530,3ptp4l0-21swapper/220:30:062
13563995223,4cyclictest25-21ksoftirqd/123:25:191
13563995223,3cyclictest25-21ksoftirqd/120:10:121
13563995219,6cyclictest25-21ksoftirqd/119:33:551
13563995219,4cyclictest25-21ksoftirqd/120:35:211
13562995220,7cyclictest9-21ksoftirqd/023:35:180
13562995218,7cyclictest9-21ksoftirqd/020:30:180
13562995218,3cyclictest9-21ksoftirqd/022:45:290
13562995210,3cyclictest9-21ksoftirqd/020:45:230
1356299520,8cyclictest766-21gdbus23:20:000
134491520,4ptp4l0-21swapper/323:28:463
134491520,4ptp4l0-21swapper/319:37:063
134491520,4ptp4l0-21swapper/223:40:232
134491520,4ptp4l0-21swapper/221:06:422
134491520,3ptp4l0-21swapper/223:45:312
13563995120,4cyclictest25-21ksoftirqd/121:50:141
13563995119,4cyclictest25-21ksoftirqd/122:31:051
13563995115,10cyclictest25-21ksoftirqd/122:25:161
1356299517,4cyclictest9-21ksoftirqd/023:55:140
13562995120,4cyclictest9-21ksoftirqd/022:15:280
134491510,4ptp4l0-21swapper/320:50:223
134491510,4ptp4l0-21swapper/319:54:323
134491510,4ptp4l0-21swapper/019:09:280
13563995034,4cyclictest25-21ksoftirqd/123:40:001
13563995034,4cyclictest25-21ksoftirqd/119:45:011
13563995018,4cyclictest25-21ksoftirqd/121:25:191
13563995018,4cyclictest25-21ksoftirqd/100:35:001
13563995017,4cyclictest25-21ksoftirqd/123:47:061
13563995017,4cyclictest25-21ksoftirqd/100:35:151
13563995017,3cyclictest25-21ksoftirqd/123:50:261
1356299506,3cyclictest19559-21kworker/0:200:22:490
134491500,4ptp4l0-21swapper/322:05:093
134491500,4ptp4l0-21swapper/222:15:432
134491500,4ptp4l0-21swapper/200:06:252
134491500,3ptp4l0-21swapper/322:15:233
134491500,3ptp4l0-21swapper/222:45:002
13563994916,3cyclictest25-21ksoftirqd/120:40:251
13562994938,3cyclictest9-21ksoftirqd/020:54:010
13562994933,4cyclictest9-21ksoftirqd/023:34:040
134491490,5ptp4l0-21swapper/119:05:251
134491490,4ptp4l0-21swapper/320:42:273
134491490,4ptp4l0-21swapper/300:15:303
134491490,4ptp4l0-21swapper/223:31:252
134491490,4ptp4l0-21swapper/223:03:442
134491490,4ptp4l0-21swapper/222:01:012
134491490,4ptp4l0-21swapper/220:59:192
134491490,4ptp4l0-21swapper/220:01:562
134491490,4ptp4l0-21swapper/200:37:302
134491490,4ptp4l0-21swapper/019:56:430
134491490,3ptp4l0-21swapper/321:27:233
134491490,3ptp4l0-21swapper/200:20:412
134491490,3ptp4l0-21swapper/123:11:241
134491490,3ptp4l0-21swapper/122:50:241
13564994831,5cyclictest33-21ksoftirqd/222:45:002
13563994833,4cyclictest25-21ksoftirqd/123:45:011
13563994818,3cyclictest25-21ksoftirqd/120:00:001
13562994832,5cyclictest9-21ksoftirqd/022:25:220
13562994825,3cyclictest9-21ksoftirqd/020:59:410
13562994821,3cyclictest9-21ksoftirqd/022:34:040
134491480,4ptp4l0-21swapper/320:08:373
134491480,4ptp4l0-21swapper/320:08:373
134491480,4ptp4l0-21swapper/319:45:003
134491480,4ptp4l0-21swapper/222:10:212
134491480,4ptp4l0-21swapper/019:19:530
134491480,3ptp4l0-21swapper/320:11:543
134491480,3ptp4l0-21swapper/223:14:192
134491480,3ptp4l0-21swapper/221:32:402
134491480,11ptp4l0-21swapper/021:10:000
13564994734,2cyclictest33-21ksoftirqd/220:20:162
13563994735,4cyclictest25-21ksoftirqd/120:50:011
13563994734,3cyclictest25-21ksoftirqd/120:05:251
13563994734,3cyclictest25-21ksoftirqd/120:05:251
13563994730,3cyclictest25-21ksoftirqd/123:15:161
13563994715,4cyclictest25-21ksoftirqd/120:53:471
13563994715,3cyclictest25-21ksoftirqd/119:15:161
13563994712,4cyclictest25-21ksoftirqd/121:00:161
13563994712,3cyclictest25-21ksoftirqd/119:25:251
13562994732,4cyclictest9-21ksoftirqd/000:26:260
134491470,4ptp4l0-21swapper/323:23:323
134491470,4ptp4l0-21swapper/221:54:172
134491470,3ptp4l0-21swapper/220:05:492
134491470,3ptp4l0-21swapper/220:05:492
134491470,3ptp4l0-21swapper/219:36:562
13564994631,4cyclictest33-21ksoftirqd/220:25:162
13564994630,5cyclictest33-21ksoftirqd/220:40:002
1356399465,10cyclictest25-21ksoftirqd/100:15:131
13563994630,4cyclictest25-21ksoftirqd/119:50:141
13562994634,3cyclictest9-21ksoftirqd/000:15:220
13562994632,3cyclictest9-21ksoftirqd/023:05:270
13562994621,2cyclictest9-21ksoftirqd/022:52:300
134491460,4ptp4l0-21swapper/321:34:003
134491460,4ptp4l0-21swapper/319:58:023
134491460,4ptp4l0-21swapper/219:25:072
134491460,2ptp4l28343-21kworker/1:119:12:021
13563994532,3cyclictest25-21ksoftirqd/121:05:241
13563994530,4cyclictest25-21ksoftirqd/122:20:181
13563994523,2cyclictest25-21ksoftirqd/119:37:031
13563994512,3cyclictest25-21ksoftirqd/121:40:191
13562994540,3cyclictest9-21ksoftirqd/022:25:000
1356299453,2cyclictest121rcu_preempt21:39:070
13562994532,4cyclictest9-21ksoftirqd/023:49:550
13562994526,8cyclictest9-21ksoftirqd/019:30:000
1356299450,3cyclictest121rcu_preempt21:25:280
134491450,4ptp4l0-21swapper/320:37:313
134491450,4ptp4l0-21swapper/219:21:012
134491450,3ptp4l0-21swapper/320:25:133
1356599448,3cyclictest121rcu_preempt22:40:013
1356499448,9cyclictest33-21ksoftirqd/219:40:282
13563994429,5cyclictest25-21ksoftirqd/121:10:231
13563994429,3cyclictest25-21ksoftirqd/122:55:051
1356399440,2cyclictest121rcu_preempt00:13:511
1356299444,2cyclictest121rcu_preempt23:25:000
1356299443,2cyclictest121rcu_preempt23:29:070
1356299443,2cyclictest121rcu_preempt20:26:320
13562994431,3cyclictest9-21ksoftirqd/019:35:240
13562994429,4cyclictest9-21ksoftirqd/021:45:210
13562994426,8cyclictest9-21ksoftirqd/023:43:150
13562994424,9cyclictest9-21ksoftirqd/021:10:580
1356299442,2cyclictest121rcu_preempt19:11:420
134491440,4ptp4l0-21swapper/321:55:143
134491440,4ptp4l0-21swapper/320:22:023
134491440,4ptp4l0-21swapper/022:43:120
134491440,10ptp4l0-21swapper/300:30:383
13565994334,2cyclictest30786-21cut19:45:203
1356499438,7cyclictest33-21ksoftirqd/222:34:102
13564994337,3cyclictest33-21ksoftirqd/200:05:002
13564994326,5cyclictest33-21ksoftirqd/223:10:002
1356399433,6cyclictest121rcu_preempt20:59:381
13562994338,3cyclictest9-21ksoftirqd/020:24:590
13562994327,6cyclictest9-21ksoftirqd/020:10:180
13562994327,3cyclictest9-21ksoftirqd/020:00:110
13562994324,10cyclictest9-21ksoftirqd/021:30:100
13562994323,3cyclictest9-21ksoftirqd/019:45:150
134491430,9ptp4l0-21swapper/321:40:483
134491430,5ptp4l0-21swapper/323:56:053
134491430,4ptp4l540-21apt-get23:20:112
134491430,3ptp4l0-21swapper/323:18:123
134491430,10ptp4l0-21swapper/320:18:063
13562994227,4cyclictest9-21ksoftirqd/020:05:250
13562994227,4cyclictest9-21ksoftirqd/020:05:240
134491420,5ptp4l9898-21/usr/sbin/munin22:30:173
134491420,4ptp4l24185-21ntp_states19:30:232
134491420,4ptp4l22362-21ntp_states22:55:232
134491420,4ptp4l10218-21ntp_states21:20:220
134491420,4ptp4l0-21swapper/021:59:580
134491420,3ptp4l27791-21apt-get22:00:153
134491420,3ptp4l0-21swapper/323:42:073
1356599411,3cyclictest134691getstats22:55:123
1356499419,4cyclictest33-21ksoftirqd/200:31:342
13564994135,3cyclictest33-21ksoftirqd/222:55:002
13564994125,4cyclictest33-21ksoftirqd/221:04:592
134491410,9ptp4l0-21swapper/321:45:423
134491410,5ptp4l0-21swapper/323:35:003
134491410,5ptp4l0-21swapper/320:30:213
134491410,4ptp4l6708-21apt-get22:25:033
134491410,4ptp4l41-21ksoftirqd/322:10:233
134491410,4ptp4l0-21swapper/323:50:143
134491410,4ptp4l0-21swapper/300:03:113
134491410,4ptp4l0-21swapper/223:25:132
134491410,3ptp4l9099-21apt-get21:20:123
134491410,3ptp4l30089-21apt-get22:05:122
134491410,3ptp4l29912-21apt-get20:55:123
134491410,3ptp4l0-21swapper/321:14:033
134491410,2ptp4l4661-21apt-get22:20:122
13564994026,4cyclictest33-21ksoftirqd/219:15:002
13563994012,3cyclictest25-21ksoftirqd/122:40:151
134491400,5ptp4l0-21swapper/323:45:023
134491400,5ptp4l0-21swapper/220:40:112
134491400,4ptp4l7988-21ps21:15:252
134491400,4ptp4l13901-21diskstats19:10:143
134491400,4ptp4l0-21swapper/321:05:243
134491400,4ptp4l0-21swapper/300:26:003
134491400,4ptp4l0-21swapper/300:10:193
134491400,4ptp4l0-21swapper/223:54:352
134491400,4ptp4l0-21swapper/223:15:272
134491400,4ptp4l0-21swapper/221:57:282
134491400,4ptp4l0-21swapper/221:36:582
134491400,3ptp4l23756-21gzip00:05:383
134491400,3ptp4l10599-21ls21:20:262
134491400,3ptp4l0-21swapper/321:02:213
134491400,3ptp4l0-21swapper/220:12:062
134491400,2ptp4l30048-21strings00:20:233
13564993925,4cyclictest33-21ksoftirqd/221:25:152
1356499392,2cyclictest121rcu_preempt20:50:192
13564993914,15cyclictest33-21ksoftirqd/219:45:292
134491390,5ptp4l0-21swapper/323:10:273
134491390,5ptp4l0-21swapper/200:15:222
134491390,4ptp4l18572-21diskstats19:20:153
134491390,4ptp4l0-21swapper/323:35:193
134491390,4ptp4l0-21swapper/323:00:163
134491390,4ptp4l0-21swapper/322:50:153
134491390,4ptp4l0-21swapper/322:20:163
134491390,4ptp4l0-21swapper/321:50:263
134491390,4ptp4l0-21swapper/222:35:202
134491390,4ptp4l0-21swapper/222:25:192
134491390,4ptp4l0-21swapper/219:16:462
134491390,3ptp4l3557-21apt-get00:35:133
134491390,3ptp4l22001-21ntp_states21:45:262
134491380,4ptp4l0-21swapper/322:45:173
134491380,4ptp4l0-21swapper/220:49:082
134491380,3ptp4l15571-21ssh22:40:263
134491380,3ptp4l0-21swapper/319:15:213
134491370,3ptp4l5969-21/usr/sbin/munin20:00:283
134491370,3ptp4l26176-21kernelversion20:45:203
134491370,3ptp4l0-21swapper/319:30:143
137891235,10phc2sys0-21swapper/319:05:203
112082124,4sleep20-21swapper/219:05:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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