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2026-04-23 - 09:01
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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 rackdslot4.osadl.org (updated Thu Apr 23, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591237170,23phc2sys0-21swapper/319:08:163
281012202169,22sleep20-21swapper/219:08:082
280692202169,21sleep00-21swapper/019:07:420
280702201167,22sleep10-21swapper/119:07:431
1030121670,4sleep32854499cyclictest19:35:253
2843221490,6sleep22854399cyclictest21:15:282
2843221490,6sleep22854399cyclictest21:15:282
2033421460,4sleep22854399cyclictest19:55:262
50798960,74rtkit-daemon0-21swapper/219:10:002
138491910,1ptp4l28256-21ssh23:25:253
1385918463,11phc2sys0-21swapper/319:10:013
34412690,5sleep03436-21unixbench_singl21:30:260
28692640,2sleep30-21swapper/321:30:213
28542996124,9cyclictest25-21ksoftirqd/121:25:001
28541995930,10cyclictest9-21ksoftirqd/023:35:200
184972570,4sleep3401ktimersoftd/320:55:273
28543995632,17cyclictest33-21ksoftirqd/221:50:252
95422540,3sleep29544-21df_abs20:40:142
28541995428,9cyclictest9-21ksoftirqd/022:00:140
138491540,1ptp4l401ktimersoftd/322:09:063
138491540,1ptp4l401ktimersoftd/319:46:553
28541995320,4cyclictest9-21ksoftirqd/000:20:000
28543995217,5cyclictest33-21ksoftirqd/220:00:182
325502510,1sleep30-21swapper/322:30:233
28543995122,16cyclictest33-21ksoftirqd/220:55:262
28541995113,9cyclictest9-21ksoftirqd/000:30:000
28541995031,8cyclictest9-21ksoftirqd/000:35:220
298762490,2sleep30-21swapper/300:35:153
2854299485,3cyclictest25-21ksoftirqd/122:05:191
28541994824,8cyclictest9-21ksoftirqd/020:55:200
28541994821,8cyclictest9-21ksoftirqd/000:10:180
28541994814,7cyclictest9-21ksoftirqd/021:25:150
2854299477,4cyclictest25-21ksoftirqd/120:40:181
28541994715,3cyclictest9-21ksoftirqd/020:45:120
28541994715,3cyclictest9-21ksoftirqd/020:45:120
28541994714,8cyclictest9-21ksoftirqd/000:10:000
28544994631,4cyclictest41-21ksoftirqd/319:25:003
2854499460,5cyclictest29893-21irqrtprio21:20:163
28543994632,5cyclictest33-21ksoftirqd/221:05:142
28543994631,5cyclictest33-21ksoftirqd/200:10:282
28543994630,6cyclictest33-21ksoftirqd/223:30:172
28543994628,8cyclictest33-21ksoftirqd/223:45:142
2854299469,4cyclictest25-21ksoftirqd/120:15:171
2854299465,7cyclictest25-21ksoftirqd/123:35:191
2854299464,3cyclictest121rcu_preempt00:05:141
28542994634,3cyclictest25-21ksoftirqd/121:45:211
28542994634,3cyclictest25-21ksoftirqd/121:45:201
2854299462,5cyclictest121rcu_preempt22:20:171
28541994612,8cyclictest9-21ksoftirqd/020:20:140
2854399457,17cyclictest33-21ksoftirqd/200:35:152
28543994533,9cyclictest33-21ksoftirqd/220:15:242
28543994528,8cyclictest33-21ksoftirqd/223:25:142
28543994527,9cyclictest33-21ksoftirqd/222:00:132
2854399450,5cyclictest33-21ksoftirqd/223:00:262
2854299459,9cyclictest25-21ksoftirqd/120:05:261
2854299458,9cyclictest25-21ksoftirqd/119:25:121
2854299454,3cyclictest121rcu_preempt00:15:191
2854299453,7cyclictest25-21ksoftirqd/122:35:211
2854299452,3cyclictest121rcu_preempt22:55:241
2854299451,2cyclictest25-21ksoftirqd/123:25:131
2854299450,6cyclictest25-21ksoftirqd/123:45:221
2854299450,3cyclictest25-21ksoftirqd/121:35:161
28541994531,4cyclictest9-21ksoftirqd/000:00:160
28541994520,8cyclictest9-21ksoftirqd/020:10:120
28541994519,4cyclictest9-21ksoftirqd/022:30:140
28541994513,7cyclictest9-21ksoftirqd/023:00:230
2854199451,2cyclictest121rcu_preempt00:00:000
28541994510,7cyclictest9-21ksoftirqd/022:20:230
2854499446,9cyclictest41-21ksoftirqd/321:35:253
28543994428,5cyclictest33-21ksoftirqd/222:50:262
28543994425,9cyclictest33-21ksoftirqd/200:20:132
2854299445,9cyclictest25-21ksoftirqd/119:55:141
2854299444,3cyclictest121rcu_preempt19:15:121
2854299443,3cyclictest121rcu_preempt23:40:251
2854299443,3cyclictest121rcu_preempt21:10:131
2854299443,3cyclictest121rcu_preempt19:15:011
28542994431,3cyclictest25-21ksoftirqd/119:35:231
28542994427,8cyclictest25-21ksoftirqd/123:55:251
2854299442,3cyclictest25-21ksoftirqd/121:00:191
2854299442,3cyclictest121rcu_preempt21:55:221
2854299440,2cyclictest25-21ksoftirqd/123:30:211
2854199443,3cyclictest121rcu_preempt21:15:160
2854199443,3cyclictest121rcu_preempt21:15:160
28541994427,8cyclictest9-21ksoftirqd/022:40:270
28541994412,5cyclictest9-21ksoftirqd/021:20:180
138491440,0ptp4l401ktimersoftd/321:42:153
2854499438,11cyclictest41-21ksoftirqd/323:35:003
28543994330,10cyclictest33-21ksoftirqd/223:20:262
28543994327,5cyclictest33-21ksoftirqd/220:45:142
28543994327,5cyclictest33-21ksoftirqd/220:45:142
28543994326,9cyclictest33-21ksoftirqd/220:25:012
2854399432,4cyclictest33-21ksoftirqd/222:10:252
28543994321,9cyclictest33-21ksoftirqd/223:10:012
28543994316,8cyclictest33-21ksoftirqd/219:30:232
2854399430,4cyclictest12592-21/usr/sbin/munin19:40:222
2854299435,4cyclictest121rcu_preempt21:15:261
2854299435,4cyclictest121rcu_preempt21:15:251
2854299435,2cyclictest7010-21irqrtprio22:45:171
2854299435,2cyclictest7010-21irqrtprio22:45:171
2854299434,3cyclictest25-21ksoftirqd/121:25:251
2854299433,3cyclictest121rcu_preempt23:50:131
2854299433,3cyclictest121rcu_preempt23:50:121
2854299433,3cyclictest121rcu_preempt00:25:211
28542994327,8cyclictest25-21ksoftirqd/122:10:161
2854299432,6cyclictest121rcu_preempt20:30:001
2854299432,3cyclictest121rcu_preempt23:10:231
2854299432,3cyclictest121rcu_preempt21:50:151
2854299432,3cyclictest121rcu_preempt20:50:151
28542994323,8cyclictest25-21ksoftirqd/122:40:251
28542994323,5cyclictest25-21ksoftirqd/122:30:001
2854299432,2cyclictest121rcu_preempt19:40:261
2854299431,3cyclictest25-21ksoftirqd/120:30:261
2854299431,3cyclictest121rcu_preempt22:00:171
2854299431,3cyclictest121rcu_preempt00:10:241
2854299430,7cyclictest223-21systemd-journal22:34:591
2854199438,7cyclictest9-21ksoftirqd/019:55:230
28541994330,4cyclictest9-21ksoftirqd/019:15:120
28541994327,7cyclictest9-21ksoftirqd/023:10:010
28541994327,7cyclictest9-21ksoftirqd/020:25:190
28541994325,8cyclictest9-21ksoftirqd/022:15:260
28541994324,8cyclictest9-21ksoftirqd/020:50:250
28541994312,8cyclictest9-21ksoftirqd/023:45:190
28541994312,4cyclictest9-21ksoftirqd/023:10:270
28541994310,9cyclictest9-21ksoftirqd/022:10:000
138491430,0ptp4l401ktimersoftd/322:35:243
28544994223,9cyclictest41-21ksoftirqd/300:20:143
28543994226,4cyclictest16726-21cron00:09:592
2854399421,4cyclictest33-21ksoftirqd/219:25:172
2854299426,9cyclictest25-21ksoftirqd/100:35:171
2854299424,3cyclictest121rcu_preempt20:10:171
28542994237,3cyclictest25-21ksoftirqd/120:25:001
2854299423,3cyclictest121rcu_preempt19:30:121
2854299422,3cyclictest121rcu_preempt21:05:271
2854299422,3cyclictest121rcu_preempt20:00:281
2854299422,3cyclictest121rcu_preempt19:50:271
2854299422,3cyclictest121rcu_preempt00:00:141
2854299421,2cyclictest121rcu_preempt00:30:181
2854299420,3cyclictest25-21ksoftirqd/123:15:211
2854299420,3cyclictest25-21ksoftirqd/123:00:121
2854299420,2cyclictest121rcu_preempt19:20:221
2854199428,7cyclictest9-21ksoftirqd/021:35:140
28541994228,4cyclictest9-21ksoftirqd/021:55:550
28541994227,7cyclictest9-21ksoftirqd/019:25:220
28541994227,5cyclictest9-21ksoftirqd/021:10:240
28541994225,5cyclictest9-21ksoftirqd/019:10:130
28541994225,4cyclictest9-21ksoftirqd/020:35:250
28541994214,3cyclictest9-21ksoftirqd/020:40:130
28541994210,7cyclictest9-21ksoftirqd/022:10:190
138491420,0ptp4l401ktimersoftd/323:40:203
138491420,0ptp4l401ktimersoftd/300:06:153
28544994123,8cyclictest41-21ksoftirqd/300:25:133
2854499410,3cyclictest121rcu_preempt21:55:173
28543994130,9cyclictest33-21ksoftirqd/219:15:252
28543994126,6cyclictest33-21ksoftirqd/219:35:152
28543994121,10cyclictest33-21ksoftirqd/221:20:222
2854399410,3cyclictest121rcu_preempt20:50:142
28542994137,2cyclictest231rcuc/100:20:181
2854299413,3cyclictest121rcu_preempt23:20:191
2854299413,3cyclictest121rcu_preempt23:05:171
28542994131,8cyclictest25-21ksoftirqd/120:45:081
28542994131,8cyclictest25-21ksoftirqd/120:45:081
2854299411,3cyclictest121rcu_preempt20:35:261
28541994127,4cyclictest9-21ksoftirqd/021:45:170
28541994127,4cyclictest9-21ksoftirqd/021:45:170
28541994124,8cyclictest9-21ksoftirqd/022:35:130
2854199412,3cyclictest121rcu_preempt21:00:170
28541994113,8cyclictest9-21ksoftirqd/020:05:140
28541994113,7cyclictest9-21ksoftirqd/021:05:180
28541994113,3cyclictest9-21ksoftirqd/023:30:020
28541994110,3cyclictest9-21ksoftirqd/022:45:190
28541994110,3cyclictest9-21ksoftirqd/022:45:180
28541994110,3cyclictest9-21ksoftirqd/019:45:140
138491410,0ptp4l401ktimersoftd/323:10:003
28544994035,2cyclictest41-21ksoftirqd/300:00:003
28544994022,4cyclictest41-21ksoftirqd/323:50:243
28544994022,4cyclictest41-21ksoftirqd/323:50:233
28544994020,10cyclictest41-21ksoftirqd/319:15:133
2854399405,6cyclictest33-21ksoftirqd/220:35:132
28543994035,3cyclictest33-21ksoftirqd/223:40:002
2854399402,4cyclictest33-21ksoftirqd/222:35:192
28543994024,5cyclictest33-21ksoftirqd/223:50:242
28543994024,5cyclictest33-21ksoftirqd/223:50:242
28543994023,8cyclictest33-21ksoftirqd/222:25:222
28543994021,8cyclictest33-21ksoftirqd/222:05:162
28543994019,5cyclictest33-21ksoftirqd/223:40:202
2854299404,2cyclictest8811-21turbostat21:45:011
28542994035,3cyclictest25-21ksoftirqd/121:34:591
28542994035,3cyclictest25-21ksoftirqd/119:50:001
2854299403,2cyclictest121rcu_preempt22:15:131
2854299400,3cyclictest121rcu_preempt22:50:121
28541994035,3cyclictest9-21ksoftirqd/023:25:010
138491400,0ptp4l401ktimersoftd/319:25:163
28544993933,3cyclictest41-21ksoftirqd/322:50:003
28544993927,10cyclictest41-21ksoftirqd/320:45:153
28544993927,10cyclictest41-21ksoftirqd/320:45:143
28544993926,4cyclictest41-21ksoftirqd/323:00:133
28543993924,7cyclictest33-21ksoftirqd/222:40:182
2854399392,3cyclictest33-21ksoftirqd/200:15:182
28543993923,5cyclictest33-21ksoftirqd/200:00:232
28543993920,11cyclictest33-21ksoftirqd/219:45:212
28543993920,10cyclictest33-21ksoftirqd/221:10:132
28543993919,11cyclictest33-21ksoftirqd/223:15:142
2854299390,2cyclictest121rcu_preempt20:55:141
2854199399,3cyclictest9-21ksoftirqd/023:50:240
2854199399,3cyclictest9-21ksoftirqd/023:50:240
2854199394,3cyclictest9-21ksoftirqd/019:50:170
28541993924,7cyclictest9-21ksoftirqd/023:30:260
28541993924,7cyclictest9-21ksoftirqd/023:15:190
28541993912,7cyclictest9-21ksoftirqd/023:40:010
138491390,0ptp4l401ktimersoftd/322:03:123
28544993833,3cyclictest1319-21snmpd21:29:223
28544993826,3cyclictest41-21ksoftirqd/323:05:243
28544993822,8cyclictest41-21ksoftirqd/300:15:163
28544993820,9cyclictest41-21ksoftirqd/321:15:153
28544993820,9cyclictest41-21ksoftirqd/321:15:143
28544993820,8cyclictest41-21ksoftirqd/319:55:143
28544993820,5cyclictest41-21ksoftirqd/323:35:193
28544993819,6cyclictest41-21ksoftirqd/320:25:003
2854499381,3cyclictest121rcu_preempt23:15:183
28543993833,3cyclictest33-21ksoftirqd/220:30:142
28543993832,3cyclictest33-21ksoftirqd/221:35:122
28543993823,6cyclictest33-21ksoftirqd/219:50:112
28543993822,5cyclictest33-21ksoftirqd/222:20:132
28543993822,5cyclictest33-21ksoftirqd/220:20:192
28543993821,8cyclictest33-21ksoftirqd/223:10:212
28543993818,7cyclictest33-21ksoftirqd/221:55:142
28543993818,10cyclictest33-21ksoftirqd/222:15:142
2854199389,3cyclictest9-21ksoftirqd/019:35:130
2854199387,8cyclictest9-21ksoftirqd/022:25:280
2854199385,3cyclictest9-21ksoftirqd/022:55:130
28541993834,2cyclictest9-21ksoftirqd/000:20:160
28541993824,4cyclictest9-21ksoftirqd/020:00:190
28541993823,6cyclictest9-21ksoftirqd/019:20:220
28541993822,7cyclictest9-21ksoftirqd/019:45:000
28541993812,3cyclictest9-21ksoftirqd/020:15:150
28544993734,2cyclictest41-21ksoftirqd/322:55:003
28544993733,2cyclictest41-21ksoftirqd/300:05:003
28544993732,3cyclictest41-21ksoftirqd/319:45:013
28544993731,3cyclictest41-21ksoftirqd/320:55:003
28544993723,3cyclictest41-21ksoftirqd/322:55:273
28544993717,18cyclictest41-21ksoftirqd/321:50:003
28544993717,18cyclictest41-21ksoftirqd/321:50:003
28543993722,7cyclictest33-21ksoftirqd/220:05:252
28543993722,5cyclictest33-21ksoftirqd/221:45:262
28543993722,5cyclictest33-21ksoftirqd/221:45:262
28543993721,7cyclictest33-21ksoftirqd/221:40:192
28543993721,5cyclictest33-21ksoftirqd/222:31:262
28543993721,5cyclictest33-21ksoftirqd/221:25:132
2854399371,9cyclictest33-21ksoftirqd/223:55:212
28543993717,10cyclictest33-21ksoftirqd/219:20:132
28541993721,7cyclictest9-21ksoftirqd/020:30:140
28544993629,5cyclictest41-21ksoftirqd/321:51:563
28544993621,6cyclictest41-21ksoftirqd/323:50:003
28544993619,9cyclictest41-21ksoftirqd/320:00:143
28544993619,8cyclictest41-21ksoftirqd/320:05:143
28544993618,9cyclictest41-21ksoftirqd/321:05:143
28544993618,8cyclictest41-21ksoftirqd/320:35:143
28544993618,8cyclictest41-21ksoftirqd/320:30:193
28543993631,3cyclictest33-21ksoftirqd/220:10:132
28543993630,4cyclictest33-21ksoftirqd/221:31:372
28543993621,5cyclictest33-21ksoftirqd/222:55:132
28543993620,8cyclictest33-21ksoftirqd/221:00:142
28543993620,5cyclictest33-21ksoftirqd/200:30:112
2854199369,4cyclictest9-21ksoftirqd/021:50:170
28541993630,3cyclictest9-21ksoftirqd/022:50:020
28541993621,4cyclictest9-21ksoftirqd/021:40:180
28541993620,7cyclictest9-21ksoftirqd/019:30:140
2854499357,11cyclictest41-21ksoftirqd/300:30:273
28544993531,3cyclictest41-21ksoftirqd/319:50:253
28544993531,2cyclictest41-21ksoftirqd/322:25:243
28544993529,4cyclictest41-21ksoftirqd/322:48:243
28544993529,4cyclictest41-21ksoftirqd/321:01:493
28544993521,4cyclictest41-21ksoftirqd/322:15:173
28543993531,2cyclictest33-21ksoftirqd/200:30:002
28544993430,2cyclictest41-21ksoftirqd/322:25:003
28544993429,3cyclictest41-21ksoftirqd/320:10:163
28544993422,9cyclictest41-21ksoftirqd/320:25:003
28543993419,5cyclictest33-21ksoftirqd/222:45:142
28543993419,5cyclictest33-21ksoftirqd/222:45:132
28541993429,3cyclictest9-21ksoftirqd/000:30:240
28544993329,2cyclictest41-21ksoftirqd/300:10:143
28544993328,3cyclictest41-21ksoftirqd/323:24:463
28544993328,3cyclictest41-21ksoftirqd/321:14:203
28544993319,4cyclictest41-21ksoftirqd/320:40:143
28544993214,9cyclictest41-21ksoftirqd/320:15:153
28544993126,3cyclictest41-21ksoftirqd/322:40:223
28544993115,7cyclictest41-21ksoftirqd/322:10:143
28544992924,3cyclictest41-21ksoftirqd/319:30:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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