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2026-06-12 - 05:56
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Fri Jun 12, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104132208173,23sleep30-21swapper/319:06:243
106182205171,22sleep10-21swapper/119:08:591
85602204169,23sleep20-21swapper/219:05:032
104032204170,22sleep00-21swapper/019:06:170
2428821670,3sleep31099199cyclictest23:00:003
2409621580,5sleep31099199cyclictest20:45:013
135291610,1getstats0-21swapper/323:02:293
289402590,2sleep10-21swapper/122:00:211
12362580,1sleep00-21swapper/022:10:180
180402570,4sleep2311rcuc/219:25:002
10989995710,9cyclictest25-21ksoftirqd/123:00:001
14552560,5sleep31099199cyclictest21:05:113
139291550,1ptp4l401ktimersoftd/322:20:013
139291530,1ptp4l401ktimersoftd/321:35:343
139291500,1ptp4l391rcuc/300:23:093
10988994832,4cyclictest9-21ksoftirqd/020:00:210
10990994512,5cyclictest33-21ksoftirqd/222:50:142
10989994513,3cyclictest25-21ksoftirqd/122:15:191
10990994410,5cyclictest33-21ksoftirqd/200:15:012
10990994315,18cyclictest33-21ksoftirqd/222:35:202
1098999432,4cyclictest25-21ksoftirqd/120:25:171
41298420,2rtkit-daemon411-21rtkit-daemon23:40:141
41298420,2rtkit-daemon411-21rtkit-daemon23:40:141
139291420,34ptp4l0-21swapper/319:10:003
139291420,0ptp4l401ktimersoftd/300:18:433
10990994237,3cyclictest33-21ksoftirqd/222:10:002
1099099420,5cyclictest337-21dbus-daemon22:01:592
1098999421,11cyclictest25-21ksoftirqd/123:50:271
10988994237,2cyclictest9-21ksoftirqd/023:50:000
10988994236,3cyclictest9-21ksoftirqd/023:00:000
139291410,0ptp4l401ktimersoftd/319:46:403
10991994135,4cyclictest41-21ksoftirqd/300:00:013
10991994129,10cyclictest41-21ksoftirqd/321:19:033
10990994128,10cyclictest33-21ksoftirqd/220:30:242
10990994122,8cyclictest33-21ksoftirqd/200:10:032
10990994113,16cyclictest33-21ksoftirqd/219:55:262
1098999414,3cyclictest121rcu_preempt23:30:001
10989994133,5cyclictest25-21ksoftirqd/123:14:591
10988994137,2cyclictest9-21ksoftirqd/019:40:010
139291400,0ptp4l401ktimersoftd/322:40:243
10991994035,3cyclictest41-21ksoftirqd/323:30:003
10991994035,3cyclictest14326-21grep20:25:003
10989994035,3cyclictest25-21ksoftirqd/123:39:591
10989994035,3cyclictest25-21ksoftirqd/121:40:001
10989994035,3cyclictest25-21ksoftirqd/119:30:001
10989994035,3cyclictest25-21ksoftirqd/119:30:001
10989994035,3cyclictest25-21ksoftirqd/100:25:001
10989994023,7cyclictest25-21ksoftirqd/119:55:121
10988994035,3cyclictest9-21ksoftirqd/022:50:000
10988994024,4cyclictest9-21ksoftirqd/022:20:280
1098899401,3cyclictest121rcu_preempt19:25:000
139291390,1ptp4l401ktimersoftd/322:46:033
139291390,0ptp4l401ktimersoftd/322:05:123
10991993933,4cyclictest41-21ksoftirqd/323:07:453
10991993933,4cyclictest41-21ksoftirqd/321:14:013
10989993934,3cyclictest25-21ksoftirqd/122:34:591
10989993934,3cyclictest25-21ksoftirqd/121:04:591
10989993934,3cyclictest25-21ksoftirqd/120:35:011
10989993934,2cyclictest25-21ksoftirqd/120:15:001
10991993832,4cyclictest41-21ksoftirqd/323:31:003
10991993832,4cyclictest41-21ksoftirqd/322:27:183
10991993832,4cyclictest41-21ksoftirqd/321:56:583
10990993834,3cyclictest33-21ksoftirqd/222:20:012
1098999384,3cyclictest121rcu_preempt21:15:211
10989993833,3cyclictest25-21ksoftirqd/123:20:001
10989993833,3cyclictest25-21ksoftirqd/122:10:191
10989993833,3cyclictest25-21ksoftirqd/100:30:011
10989993832,3cyclictest25-21ksoftirqd/121:45:161
10989993832,3cyclictest25-21ksoftirqd/120:40:011
10988993833,3cyclictest9-21ksoftirqd/021:25:000
10988993823,6cyclictest9-21ksoftirqd/021:30:160
10988993823,6cyclictest9-21ksoftirqd/019:45:190
1098899380,2cyclictest121rcu_preempt20:10:240
10991993732,3cyclictest41-21ksoftirqd/322:30:153
10991993732,3cyclictest41-21ksoftirqd/300:10:103
10991993731,4cyclictest41-21ksoftirqd/320:29:523
10991993731,4cyclictest41-21ksoftirqd/300:34:123
10990993732,2cyclictest33-21ksoftirqd/223:15:002
10990993731,4cyclictest33-21ksoftirqd/221:37:312
10990993731,4cyclictest33-21ksoftirqd/220:15:352
1098999375,3cyclictest121rcu_preempt19:10:241
10989993733,2cyclictest25-21ksoftirqd/122:20:251
10989993732,3cyclictest25-21ksoftirqd/123:50:011
10989993732,3cyclictest25-21ksoftirqd/119:20:001
10989993732,3cyclictest25-21ksoftirqd/100:10:131
10989993731,4cyclictest25-21ksoftirqd/120:19:421
10989993731,3cyclictest25-21ksoftirqd/122:29:591
10988993732,3cyclictest9-21ksoftirqd/023:20:180
10988993732,3cyclictest9-21ksoftirqd/000:20:010
10988993731,4cyclictest9-21ksoftirqd/021:27:170
10988993731,3cyclictest9-21ksoftirqd/021:15:010
10988993730,4cyclictest9-21ksoftirqd/023:16:060
10988993725,4cyclictest9-21ksoftirqd/000:35:200
10988993725,3cyclictest9-21ksoftirqd/020:50:130
10988993724,3cyclictest9-21ksoftirqd/020:55:270
10988993724,3cyclictest9-21ksoftirqd/020:40:230
10988993723,5cyclictest9-21ksoftirqd/022:30:190
10991993631,3cyclictest41-21ksoftirqd/322:18:203
10991993631,3cyclictest41-21ksoftirqd/322:00:103
10991993631,3cyclictest41-21ksoftirqd/320:50:593
10991993631,3cyclictest41-21ksoftirqd/319:57:113
10991993630,4cyclictest41-21ksoftirqd/323:21:533
10991993630,4cyclictest41-21ksoftirqd/323:13:553
10991993630,4cyclictest41-21ksoftirqd/319:24:013
10990993633,2cyclictest33-21ksoftirqd/200:00:002
10990993631,3cyclictest9541-21cron20:15:002
10990993630,4cyclictest33-21ksoftirqd/200:35:192
10990993630,3cyclictest33-21ksoftirqd/223:05:192
10990993629,5cyclictest33-21ksoftirqd/219:45:102
10990993620,4cyclictest33-21ksoftirqd/219:35:002
1098999363,7cyclictest121rcu_preempt20:55:271
1098999363,2cyclictest121rcu_preempt00:35:211
10989993632,3cyclictest25-21ksoftirqd/123:55:271
10989993630,4cyclictest25-21ksoftirqd/122:45:581
10989993630,4cyclictest25-21ksoftirqd/122:41:571
10989993630,4cyclictest25-21ksoftirqd/121:34:451
10989993630,4cyclictest25-21ksoftirqd/121:12:231
10989993630,4cyclictest25-21ksoftirqd/121:08:451
10989993630,3cyclictest25-21ksoftirqd/122:05:281
10989993630,3cyclictest25-21ksoftirqd/121:20:251
1098899368,5cyclictest9-21ksoftirqd/000:10:030
10988993632,2cyclictest9-21ksoftirqd/021:10:010
10988993632,2cyclictest9-21ksoftirqd/019:35:000
10988993631,3cyclictest9-21ksoftirqd/021:55:130
10988993631,3cyclictest9-21ksoftirqd/021:15:210
10988993631,3cyclictest9-21ksoftirqd/021:05:000
10988993631,3cyclictest9-21ksoftirqd/020:34:190
10988993630,4cyclictest9-21ksoftirqd/022:17:010
10988993630,4cyclictest9-21ksoftirqd/020:37:270
10988993630,3cyclictest9-21ksoftirqd/023:45:010
10988993630,3cyclictest9-21ksoftirqd/023:45:010
10988993630,3cyclictest9-21ksoftirqd/021:50:140
10988993630,3cyclictest9-21ksoftirqd/000:10:000
10988993624,3cyclictest9-21ksoftirqd/023:55:130
10988993624,3cyclictest9-21ksoftirqd/023:10:220
10988993624,3cyclictest9-21ksoftirqd/022:05:130
10988993622,4cyclictest9-21ksoftirqd/022:35:250
1098899361,2cyclictest121rcu_preempt22:50:230
139291350,1ptp4l391rcuc/319:30:183
10991993530,3cyclictest41-21ksoftirqd/321:03:013
10991993530,3cyclictest41-21ksoftirqd/300:26:393
10991993530,3cyclictest41-21ksoftirqd/300:07:473
10991993529,4cyclictest41-21ksoftirqd/323:48:503
10991993529,4cyclictest41-21ksoftirqd/320:59:293
10991993529,4cyclictest41-21ksoftirqd/320:16:203
10991993529,4cyclictest41-21ksoftirqd/320:05:333
10991993529,4cyclictest41-21ksoftirqd/320:05:333
10991993529,4cyclictest41-21ksoftirqd/319:53:583
10991993529,4cyclictest41-21ksoftirqd/319:26:183
10991993529,4cyclictest41-21ksoftirqd/319:26:183
10990993530,3cyclictest33-21ksoftirqd/221:30:002
10990993530,3cyclictest33-21ksoftirqd/221:20:012
10990993530,3cyclictest33-21ksoftirqd/220:00:182
10990993529,4cyclictest33-21ksoftirqd/223:54:502
10990993529,4cyclictest33-21ksoftirqd/222:28:142
10990993529,4cyclictest33-21ksoftirqd/221:20:412
10990993529,4cyclictest33-21ksoftirqd/221:01:042
10990993529,4cyclictest33-21ksoftirqd/219:28:452
10990993529,4cyclictest33-21ksoftirqd/219:28:452
10990993529,4cyclictest33-21ksoftirqd/219:18:022
10990993529,4cyclictest33-21ksoftirqd/219:12:132
10990993515,9cyclictest33-21ksoftirqd/223:45:242
10989993531,2cyclictest25-21ksoftirqd/100:30:251
10989993530,3cyclictest25-21ksoftirqd/123:20:121
10989993530,3cyclictest25-21ksoftirqd/121:44:231
10989993530,3cyclictest25-21ksoftirqd/121:25:181
10989993530,3cyclictest25-21ksoftirqd/119:40:181
10989993530,3cyclictest25-21ksoftirqd/100:05:571
10989993529,4cyclictest25-21ksoftirqd/119:24:431
1098999352,3cyclictest121rcu_preempt22:50:281
1098999352,2cyclictest121rcu_preempt19:35:151
1098999351,3cyclictest121rcu_preempt22:35:251
10988993531,2cyclictest9-21ksoftirqd/020:05:190
10988993531,2cyclictest9-21ksoftirqd/020:05:190
10988993530,3cyclictest9-21ksoftirqd/023:35:000
10988993529,4cyclictest9-21ksoftirqd/023:50:510
10988993529,4cyclictest9-21ksoftirqd/020:26:320
10988993529,3cyclictest9-21ksoftirqd/000:20:270
10988993528,4cyclictest9-21ksoftirqd/022:26:070
10988993523,3cyclictest9-21ksoftirqd/022:40:220
10988993523,3cyclictest9-21ksoftirqd/019:50:130
10988993523,3cyclictest9-21ksoftirqd/019:25:210
10988993523,3cyclictest9-21ksoftirqd/019:25:210
10988993523,3cyclictest9-21ksoftirqd/000:25:120
10988993521,3cyclictest9-21ksoftirqd/019:40:220
10988993520,4cyclictest9-21ksoftirqd/021:35:200
10991993430,3cyclictest41-21ksoftirqd/320:10:183
10991993430,2cyclictest41-21ksoftirqd/321:25:143
10991993429,3cyclictest41-21ksoftirqd/321:41:063
10991993429,3cyclictest41-21ksoftirqd/320:32:583
10991993428,4cyclictest41-21ksoftirqd/321:20:473
10991993428,4cyclictest41-21ksoftirqd/320:48:583
10991993428,4cyclictest41-21ksoftirqd/319:16:433
1099199340,5cyclictest20518-21date20:35:193
10990993430,2cyclictest33-21ksoftirqd/221:51:102
10990993429,3cyclictest33-21ksoftirqd/223:35:192
10990993429,3cyclictest33-21ksoftirqd/221:45:052
10990993429,3cyclictest33-21ksoftirqd/221:10:182
10990993428,4cyclictest33-21ksoftirqd/223:28:192
10990993428,4cyclictest33-21ksoftirqd/223:15:202
10990993422,10cyclictest33-21ksoftirqd/221:30:132
10990993411,4cyclictest33-21ksoftirqd/220:50:002
1098999346,3cyclictest25-21ksoftirqd/121:50:231
1098999343,3cyclictest25-21ksoftirqd/120:05:271
1098999343,3cyclictest25-21ksoftirqd/120:05:271
10989993430,2cyclictest25-21ksoftirqd/119:50:151
10989993430,2cyclictest25-21ksoftirqd/100:00:191
10989993429,3cyclictest25-21ksoftirqd/120:40:181
10989993428,4cyclictest25-21ksoftirqd/121:58:481
10989993428,4cyclictest25-21ksoftirqd/120:46:591
1098999341,5cyclictest25-21ksoftirqd/123:05:261
1098999340,2cyclictest121rcu_preempt19:45:191
10988993432,1cyclictest101ktimersoftd/020:46:440
10988993430,2cyclictest9-21ksoftirqd/000:30:250
10988993429,3cyclictest9-21ksoftirqd/021:40:210
10988993428,4cyclictest9-21ksoftirqd/020:18:580
10988993428,4cyclictest9-21ksoftirqd/019:12:590
10988993425,3cyclictest9-21ksoftirqd/023:35:150
10988993422,3cyclictest9-21ksoftirqd/023:05:150
10988993420,3cyclictest9-21ksoftirqd/023:00:130
1098899340,2cyclictest121rcu_preempt22:00:010
10991993329,3cyclictest41-21ksoftirqd/323:50:013
10991993329,3cyclictest41-21ksoftirqd/319:40:183
10991993328,3cyclictest41-21ksoftirqd/323:16:483
10991993328,3cyclictest41-21ksoftirqd/322:39:543
10991993328,3cyclictest41-21ksoftirqd/321:32:323
10991993328,3cyclictest41-21ksoftirqd/300:01:363
10991993327,4cyclictest41-21ksoftirqd/322:54:513
10990993328,3cyclictest33-21ksoftirqd/222:33:072
10990993328,3cyclictest33-21ksoftirqd/220:51:382
10990993328,3cyclictest33-21ksoftirqd/200:34:122
10990993328,3cyclictest33-21ksoftirqd/200:21:472
10990993327,4cyclictest33-21ksoftirqd/223:03:242
10990993327,4cyclictest33-21ksoftirqd/222:57:262
10990993327,4cyclictest33-21ksoftirqd/222:48:392
10990993327,4cyclictest33-21ksoftirqd/221:45:002
10990993326,4cyclictest33-21ksoftirqd/219:36:442
10990993317,5cyclictest33-21ksoftirqd/222:15:002
10989993328,3cyclictest25-21ksoftirqd/119:30:191
10989993327,3cyclictest25-21ksoftirqd/123:00:131
1098999331,9cyclictest25-21ksoftirqd/123:30:151
1098999330,2cyclictest121rcu_preempt20:00:141
10988993321,3cyclictest9-21ksoftirqd/019:55:220
10988993318,4cyclictest9-21ksoftirqd/023:25:130
10988993318,3cyclictest9-21ksoftirqd/019:15:170
10988993317,4cyclictest9-21ksoftirqd/000:00:220
10991993227,3cyclictest41-21ksoftirqd/323:42:383
10991993227,3cyclictest41-21ksoftirqd/323:42:383
10991993226,4cyclictest41-21ksoftirqd/320:02:523
10991993226,4cyclictest41-21ksoftirqd/300:39:093
10990993228,2cyclictest33-21ksoftirqd/223:20:192
10990993226,4cyclictest33-21ksoftirqd/222:44:342
10990993226,4cyclictest33-21ksoftirqd/222:21:522
10990993226,4cyclictest33-21ksoftirqd/200:03:532
10990993221,9cyclictest33-21ksoftirqd/220:55:192
10990993215,5cyclictest33-21ksoftirqd/221:10:012
10990993214,8cyclictest33-21ksoftirqd/200:05:132
1099099321,2cyclictest121rcu_preempt20:40:142
10989993227,3cyclictest25-21ksoftirqd/120:50:181
10989993227,3cyclictest25-21ksoftirqd/120:20:181
10988993226,3cyclictest9-21ksoftirqd/021:45:090
10988993216,3cyclictest9-21ksoftirqd/020:20:260
10991993126,3cyclictest41-21ksoftirqd/322:10:223
10991993126,3cyclictest41-21ksoftirqd/319:35:133
10990993126,3cyclictest33-21ksoftirqd/222:00:002
1099099311,2cyclictest121rcu_preempt23:40:202
1099099311,2cyclictest121rcu_preempt23:40:202
10991993025,3cyclictest41-21ksoftirqd/323:38:443
10991993024,4cyclictest41-21ksoftirqd/321:54:373
10991993024,4cyclictest41-21ksoftirqd/321:45:063
10990993025,3cyclictest33-21ksoftirqd/220:05:222
10990993025,3cyclictest33-21ksoftirqd/220:05:222
10990993017,10cyclictest33-21ksoftirqd/200:25:222
10990993014,5cyclictest33-21ksoftirqd/223:35:002
10989993025,3cyclictest25-21ksoftirqd/100:19:121
10990992925,3cyclictest33-21ksoftirqd/220:35:172
10990992825,2cyclictest33-21ksoftirqd/220:25:002
10990992823,3cyclictest33-21ksoftirqd/220:25:142
10990992823,3cyclictest33-21ksoftirqd/219:50:012
10990992722,3cyclictest33-21ksoftirqd/219:41:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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