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2026-07-08 - 11:06
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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 Wed Jul 08, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2721521590,6sleep3571599cyclictest23:25:123
571599802,32cyclictest0-21swapper/319:10:213
274242670,7sleep1571399cyclictest22:15:181
5712996527,4cyclictest9-21ksoftirqd/022:45:240
5715996433,7cyclictest41-21ksoftirqd/322:10:003
5712996426,3cyclictest9-21ksoftirqd/020:20:010
134491640,4ptp4l0-21swapper/219:08:032
5715996324,7cyclictest41-21ksoftirqd/319:30:143
5712996330,4cyclictest9-21ksoftirqd/020:48:000
5712996330,4cyclictest9-21ksoftirqd/019:31:180
5715996229,7cyclictest41-21ksoftirqd/319:15:223
5712996232,4cyclictest9-21ksoftirqd/021:50:520
5712996229,4cyclictest9-21ksoftirqd/022:15:100
5715996130,4cyclictest41-21ksoftirqd/320:00:173
5712996130,4cyclictest9-21ksoftirqd/023:05:530
5712996129,5cyclictest9-21ksoftirqd/000:29:010
5712996128,6cyclictest9-21ksoftirqd/019:15:010
5712996127,6cyclictest9-21ksoftirqd/020:00:150
5712996127,4cyclictest9-21ksoftirqd/000:30:580
134491610,4ptp4l6949-21iostat23:50:191
5715996031,7cyclictest41-21ksoftirqd/300:11:333
5715996023,7cyclictest41-21ksoftirqd/323:05:263
5712996032,6cyclictest9-21ksoftirqd/021:35:160
5712996031,5cyclictest9-21ksoftirqd/019:40:040
5712996030,4cyclictest9-21ksoftirqd/023:45:080
5712996030,4cyclictest9-21ksoftirqd/000:13:290
5712996029,3cyclictest9-21ksoftirqd/021:40:320
5712996028,4cyclictest9-21ksoftirqd/022:20:470
5712996027,7cyclictest9-21ksoftirqd/023:33:210
5712996027,4cyclictest9-21ksoftirqd/020:10:500
5712996026,6cyclictest9-21ksoftirqd/023:40:260
5712996026,6cyclictest9-21ksoftirqd/023:40:260
5712996026,3cyclictest9-21ksoftirqd/022:58:430
5712996025,6cyclictest9-21ksoftirqd/020:50:120
5715995929,7cyclictest41-21ksoftirqd/321:35:003
5715995928,9cyclictest41-21ksoftirqd/320:55:143
5715995926,7cyclictest41-21ksoftirqd/323:45:263
5715995926,7cyclictest41-21ksoftirqd/319:45:273
5712995931,4cyclictest9-21ksoftirqd/020:30:010
5712995930,4cyclictest9-21ksoftirqd/023:58:530
5712995930,4cyclictest9-21ksoftirqd/023:27:550
5712995930,4cyclictest9-21ksoftirqd/019:56:340
5712995929,3cyclictest9-21ksoftirqd/023:53:300
5712995927,3cyclictest9-21ksoftirqd/022:13:250
5712995926,4cyclictest9-21ksoftirqd/019:54:040
5715995827,10cyclictest41-21ksoftirqd/323:30:103
5715995826,6cyclictest41-21ksoftirqd/300:25:293
5715995824,9cyclictest41-21ksoftirqd/320:50:013
5715995823,4cyclictest41-21ksoftirqd/322:20:273
5712995830,7cyclictest9-21ksoftirqd/019:16:360
5712995829,7cyclictest9-21ksoftirqd/020:40:190
5712995829,4cyclictest9-21ksoftirqd/019:48:150
5712995826,4cyclictest9-21ksoftirqd/020:39:500
5712995825,3cyclictest9-21ksoftirqd/000:18:380
5712995824,5cyclictest9-21ksoftirqd/021:55:200
5712995823,6cyclictest9-21ksoftirqd/022:30:000
134491580,4ptp4l0-21swapper/022:41:540
134491580,3ptp4l0-21swapper/221:22:262
5712995732,7cyclictest9-21ksoftirqd/021:48:220
5712995730,3cyclictest9-21ksoftirqd/019:29:060
5712995729,4cyclictest9-21ksoftirqd/021:20:150
134491570,3ptp4l0-21swapper/121:30:171
5712995630,7cyclictest9-21ksoftirqd/020:05:270
5712995623,6cyclictest9-21ksoftirqd/023:10:150
5712995623,6cyclictest9-21ksoftirqd/023:10:150
5712995620,6cyclictest9-21ksoftirqd/022:35:250
5712995619,6cyclictest9-21ksoftirqd/000:20:160
571599553,6cyclictest10797-21cut00:00:013
5715995527,9cyclictest41-21ksoftirqd/300:37:233
5715995524,7cyclictest41-21ksoftirqd/321:37:093
5712995530,7cyclictest9-21ksoftirqd/022:02:200
5712995529,6cyclictest9-21ksoftirqd/021:11:330
5712995524,4cyclictest9-21ksoftirqd/020:58:470
5712995523,5cyclictest9-21ksoftirqd/019:35:160
5712995521,6cyclictest9-21ksoftirqd/021:15:280
134491550,4ptp4l0-21swapper/123:06:211
5715995421,8cyclictest41-21ksoftirqd/322:35:253
5712995425,6cyclictest9-21ksoftirqd/020:31:270
5712995424,3cyclictest9-21ksoftirqd/021:30:190
5712995422,5cyclictest9-21ksoftirqd/000:35:190
571599533,8cyclictest41-21ksoftirqd/321:55:193
5715995321,8cyclictest41-21ksoftirqd/323:41:043
5715995321,8cyclictest41-21ksoftirqd/323:41:043
571299533,3cyclictest0-21swapper/000:10:000
5712995329,6cyclictest9-21ksoftirqd/022:07:430
5712995322,5cyclictest9-21ksoftirqd/021:00:140
5712995322,5cyclictest9-21ksoftirqd/021:00:140
5712995319,5cyclictest9-21ksoftirqd/023:05:000
134491530,4ptp4l0-21swapper/219:40:122
134491530,4ptp4l0-21swapper/121:00:191
134491530,4ptp4l0-21swapper/121:00:191
134491530,3ptp4l23886-21ls23:15:291
571599525,7cyclictest41-21ksoftirqd/321:25:003
571599524,7cyclictest41-21ksoftirqd/322:30:013
571599523,6cyclictest41-21ksoftirqd/320:20:243
571599522,7cyclictest0-21swapper/321:15:193
5715995224,7cyclictest41-21ksoftirqd/322:55:133
5715995223,7cyclictest41-21ksoftirqd/323:50:223
571599522,22cyclictest0-21swapper/320:16:423
5712995224,6cyclictest9-21ksoftirqd/022:55:010
5712995219,3cyclictest9-21ksoftirqd/000:05:000
134491520,3ptp4l0-21swapper/122:00:251
571599516,3cyclictest121rcu_preempt23:21:383
571599514,6cyclictest41-21ksoftirqd/300:05:203
571599513,6cyclictest41-21ksoftirqd/321:05:163
5715995123,8cyclictest41-21ksoftirqd/322:40:233
571599511,6cyclictest41-21ksoftirqd/323:10:253
571599511,6cyclictest41-21ksoftirqd/323:10:253
571599510,12cyclictest41-21ksoftirqd/323:00:243
5712995126,8cyclictest9-21ksoftirqd/022:32:430
5712995126,7cyclictest9-21ksoftirqd/021:29:390
134491510,4ptp4l0-21swapper/320:12:443
134491510,4ptp4l0-21swapper/122:38:181
134491510,4ptp4l0-21swapper/119:23:411
571599506,8cyclictest41-21ksoftirqd/320:25:253
571599505,6cyclictest19924-21acpi20:50:113
571599505,3cyclictest9790-21ps22:45:273
571599504,9cyclictest41-21ksoftirqd/322:15:313
571599504,8cyclictest41-21ksoftirqd/300:15:193
571599504,7cyclictest41-21ksoftirqd/322:30:143
571599504,7cyclictest41-21ksoftirqd/322:05:003
571599503,6cyclictest41-21ksoftirqd/322:10:193
571599500,8cyclictest41-21ksoftirqd/320:40:273
571299504,6cyclictest20333-21kworker/0:023:23:190
5712995023,7cyclictest9-21ksoftirqd/023:20:010
134491500,4ptp4l0-21swapper/221:36:222
571599496,7cyclictest41-21ksoftirqd/319:20:203
571599495,8cyclictest41-21ksoftirqd/321:45:193
571599494,8cyclictest41-21ksoftirqd/321:50:133
571599494,7cyclictest41-21ksoftirqd/300:05:003
571599493,9cyclictest41-21ksoftirqd/322:50:143
571599493,7cyclictest41-21ksoftirqd/321:10:173
571599492,7cyclictest0-21swapper/320:05:133
571599492,6cyclictest41-21ksoftirqd/323:15:203
571299493,3cyclictest9-21ksoftirqd/021:05:230
5712994920,5cyclictest9-21ksoftirqd/020:20:160
134491490,4ptp4l0-21swapper/223:56:382
134491490,4ptp4l0-21swapper/223:36:372
134491490,4ptp4l0-21swapper/219:37:272
134491490,4ptp4l0-21swapper/122:07:071
134491490,4ptp4l0-21swapper/100:33:381
134491490,3ptp4l0-21swapper/220:44:352
571599485,7cyclictest121rcu_preempt00:22:273
571599485,6cyclictest41-21ksoftirqd/323:35:193
571599484,7cyclictest41-21ksoftirqd/319:35:283
571599483,8cyclictest41-21ksoftirqd/300:30:193
571599483,6cyclictest0-21swapper/321:25:163
571599482,6cyclictest41-21ksoftirqd/320:35:223
571599481,7cyclictest41-21ksoftirqd/321:45:003
571599481,6cyclictest41-21ksoftirqd/319:25:143
571599480,6cyclictest41-21ksoftirqd/319:45:013
5712994819,6cyclictest9-21ksoftirqd/023:35:160
134491480,4ptp4l0-21swapper/019:21:080
134491480,3ptp4l0-21swapper/220:06:242
134491480,3ptp4l0-21swapper/122:45:321
134491480,3ptp4l0-21swapper/119:43:591
571599471,3cyclictest121rcu_preempt20:30:143
134491470,4ptp4l0-21swapper/223:26:132
134491470,3ptp4l0-21swapper/319:07:493
134491470,3ptp4l0-21swapper/119:59:341
134491470,3ptp4l0-21swapper/119:49:051
571599465,7cyclictest41-21ksoftirqd/319:50:143
134691460,11getstats0-21swapper/220:24:172
134491460,8ptp4l0-21swapper/119:05:271
134491460,6ptp4l0-21swapper/019:05:190
134491460,4ptp4l0-21swapper/100:15:191
134491460,12ptp4l12158-21ssh20:30:292
134491460,10ptp4l0-21swapper/222:35:142
571599451,5cyclictest0-21swapper/319:56:413
134491450,3ptp4l0-21swapper/222:21:212
134491450,3ptp4l0-21swapper/220:02:222
571599442,6cyclictest41-21ksoftirqd/321:00:163
571599442,6cyclictest41-21ksoftirqd/321:00:163
134691440,10getstats0-21swapper/220:29:382
134691440,10getstats0-21swapper/219:45:292
134491440,5ptp4l0-21swapper/123:58:161
134491440,3ptp4l0-21swapper/121:42:461
134491440,3ptp4l0-21swapper/120:17:011
134491440,12ptp4l25-21ksoftirqd/120:36:241
134491440,10ptp4l0-21swapper/223:44:052
134491440,10ptp4l0-21swapper/223:44:052
134691430,11getstats0-21swapper/219:58:022
134691430,10getstats0-21swapper/221:07:382
134691430,10getstats0-21swapper/220:49:472
134491430,9ptp4l0-21swapper/200:13:152
134491430,4ptp4l0-21swapper/122:55:351
134491430,2ptp4l0-21swapper/122:10:481
134491430,10ptp4l0-21swapper/223:18:162
134491430,10ptp4l0-21swapper/221:16:572
5713994237,3cyclictest25-21ksoftirqd/121:20:001
134691420,10getstats0-21swapper/220:10:022
134491420,9ptp4l0-21swapper/200:36:332
134491420,5ptp4l11776-21memory22:50:221
134491420,4ptp4l11097-21df21:40:142
134491420,4ptp4l0-21swapper/121:51:021
134491420,3ptp4l0-21swapper/121:11:341
134691410,10getstats0-21swapper/223:46:262
134691410,10getstats0-21swapper/219:15:162
134491410,9ptp4l0-21swapper/200:03:202
134491410,5ptp4l14026-21irqstats21:45:181
134491410,4ptp4l8786-21hddtemp_smartct21:35:161
134491410,4ptp4l2728-21meminfo23:40:201
134491410,4ptp4l2728-21meminfo23:40:191
134491410,4ptp4l25212-21iostat_ios19:50:182
134491410,4ptp4l15543-21df20:40:131
134491410,4ptp4l0-21swapper/123:45:201
134491410,3ptp4l29568-21df22:20:151
134491410,3ptp4l29189-21apt-get21:10:122
134491410,3ptp4l0-21swapper/223:11:402
134491410,3ptp4l0-21swapper/223:11:392
134491410,3ptp4l0-21swapper/200:15:332
134491400,8ptp4l0-21swapper/200:05:322
134491400,5ptp4l0-21swapper/222:25:122
134491400,5ptp4l0-21swapper/221:55:132
134491400,4ptp4l6049-21/usr/sbin/munin21:30:242
134491400,4ptp4l22655-21hddtemp_smartct20:55:171
134491400,4ptp4l18057-21hddtemp_smartct20:45:171
134491400,4ptp4l16554-21ntp_states23:00:231
134491400,4ptp4l14242-21memory00:05:211
134491400,4ptp4l0-21swapper/223:50:042
134491400,4ptp4l0-21swapper/223:32:592
134491400,4ptp4l0-21swapper/223:20:032
134491400,4ptp4l0-21swapper/222:50:172
134491400,4ptp4l0-21swapper/222:41:032
134491400,4ptp4l0-21swapper/219:29:072
134491400,4ptp4l0-21swapper/122:29:081
134491400,4ptp4l0-21swapper/121:25:181
134491400,4ptp4l0-21swapper/119:50:131
134491400,4ptp4l0-21swapper/119:35:191
134491400,3ptp4l19597-21kworker/u8:000:20:051
134491400,3ptp4l0-21swapper/121:55:221
134491390,4ptp4l30849-21python23:30:231
134491390,4ptp4l2552-21meminfo22:30:211
134491390,4ptp4l21531-21ls23:10:271
134491390,4ptp4l21531-21ls23:10:271
134491390,4ptp4l0-21swapper/223:00:542
134491390,4ptp4l0-21swapper/222:49:482
134491390,4ptp4l0-21swapper/221:52:482
134491390,4ptp4l0-21swapper/221:01:542
134491390,4ptp4l0-21swapper/221:01:542
134491390,4ptp4l0-21swapper/220:56:362
134491390,4ptp4l0-21swapper/219:32:102
134491390,4ptp4l0-21swapper/219:15:002
134491390,4ptp4l0-21swapper/200:27:102
134491390,4ptp4l0-21swapper/123:25:291
134491390,4ptp4l0-21swapper/123:20:161
134491390,4ptp4l0-21swapper/120:05:271
134491390,4ptp4l0-21swapper/119:30:211
134491390,4ptp4l0-21swapper/119:25:171
134491390,4ptp4l0-21swapper/119:14:371
134491390,4ptp4l0-21swapper/100:10:291
134491390,4ptp4l0-21swapper/100:00:141
134491390,3ptp4l27815-21df_inode00:35:151
134491390,3ptp4l23492-21iostat00:25:191
134491390,3ptp4l20358-21hddtemp_smartct20:50:161
134491390,3ptp4l1399-21apt-get21:20:131
134491390,3ptp4l0-21swapper/120:10:201
134491380,4ptp4l0-21swapper/223:06:082
134491380,4ptp4l0-21swapper/222:57:242
134491380,4ptp4l0-21swapper/222:30:072
134491380,4ptp4l0-21swapper/222:17:202
134491380,4ptp4l0-21swapper/222:08:302
134491380,4ptp4l0-21swapper/221:47:112
134491380,4ptp4l0-21swapper/220:37:172
134491380,4ptp4l0-21swapper/220:15:392
134491380,4ptp4l0-21swapper/200:30:512
134491380,4ptp4l0-21swapper/200:20:442
134491380,4ptp4l0-21swapper/122:40:131
134491380,4ptp4l0-21swapper/120:29:591
134491380,4ptp4l0-21swapper/120:00:121
134491380,3ptp4l8831-21iostat_ios19:15:221
134491380,3ptp4l27837-21meminfo21:05:191
134491380,3ptp4l0-21swapper/220:50:422
134491380,3ptp4l0-21swapper/219:22:142
134491380,3ptp4l0-21swapper/123:36:511
134491380,3ptp4l0-21swapper/120:30:201
134491380,3ptp4l0-21swapper/120:23:271
134491370,4ptp4l0-21swapper/222:14:542
134491370,4ptp4l0-21swapper/222:03:152
134491370,4ptp4l0-21swapper/221:26:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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