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2026-03-29 - 04:47
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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 Mar 29, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1605321480,7sleep2701199cyclictest22:55:222
3079121330,4sleep2701199cyclictest00:35:272
701199772,33cyclictest0-21swapper/200:25:272
104202770,6sleep0700999cyclictest19:15:230
701199752,31cyclictest0-21swapper/223:15:282
701199712,32cyclictest0-21swapper/219:35:142
134491650,31ptp4l25-21ksoftirqd/100:12:311
134491640,5ptp4l0-21swapper/023:35:200
134491640,5ptp4l0-21swapper/023:35:200
7011996331,4cyclictest33-21ksoftirqd/223:15:002
7011996232,5cyclictest33-21ksoftirqd/219:15:242
7011996230,6cyclictest33-21ksoftirqd/200:05:142
7011996124,6cyclictest33-21ksoftirqd/221:21:502
7011996124,5cyclictest33-21ksoftirqd/219:50:272
170842600,4sleep00-21swapper/000:05:280
134491600,5ptp4l0-21swapper/020:30:210
7011995933,4cyclictest33-21ksoftirqd/221:25:002
7011995922,5cyclictest33-21ksoftirqd/200:15:012
134491590,5ptp4l0-21swapper/322:45:113
134491590,3ptp4l0-21swapper/121:34:281
134491590,3ptp4l0-21swapper/121:25:281
92532580,5sleep3391rcuc/323:50:193
7011995830,4cyclictest33-21ksoftirqd/220:50:012
701199580,13cyclictest33-21ksoftirqd/220:30:232
134491580,3ptp4l0-21swapper/123:40:291
7011995727,5cyclictest33-21ksoftirqd/223:35:212
7011995727,5cyclictest33-21ksoftirqd/223:35:212
701199572,32cyclictest0-21swapper/223:56:272
701199570,12cyclictest33-21ksoftirqd/200:30:162
701199562,34cyclictest0-21swapper/220:01:202
7011995520,3cyclictest33-21ksoftirqd/200:15:252
134491550,4ptp4l0-21swapper/120:05:461
134491550,3ptp4l1289-21chrt23:35:031
134491550,3ptp4l1289-21chrt23:35:031
134491550,3ptp4l0-21swapper/120:50:121
134491550,3ptp4l0-21swapper/119:10:111
134491550,3ptp4l0-21swapper/023:53:090
701199547,5cyclictest388-21gmain20:10:002
701199545,8cyclictest33-21ksoftirqd/222:10:212
701199545,5cyclictest33-21ksoftirqd/222:25:012
701199544,5cyclictest10370-21perf23:55:002
701199542,6cyclictest33-21ksoftirqd/221:39:592
701199542,33cyclictest0-21swapper/223:24:302
701199540,6cyclictest321ktimersoftd/222:20:012
134491540,13ptp4l27576-21ntp_states22:10:231
701199533,8cyclictest33-21ksoftirqd/223:45:152
701199532,8cyclictest0-21swapper/221:55:242
701199532,32cyclictest0-21swapper/200:23:442
701199532,31cyclictest0-21swapper/223:34:242
701199531,5cyclictest33-21ksoftirqd/221:45:142
134491530,4ptp4l0-21swapper/123:20:001
134491530,4ptp4l0-21swapper/120:40:331
134491530,3ptp4l0-21swapper/023:48:060
701199525,8cyclictest33-21ksoftirqd/219:45:272
701199523,7cyclictest0-21swapper/223:26:592
701199522,6cyclictest33-21ksoftirqd/221:34:592
701199522,6cyclictest33-21ksoftirqd/220:35:242
701199522,31cyclictest0-21swapper/220:18:322
134491520,5ptp4l0-21swapper/022:50:230
134491520,4ptp4l0-21swapper/020:57:540
134491520,3ptp4l19495-21/usr/sbin/munin21:55:110
701199514,8cyclictest4101-21fschecks_time23:40:152
701199514,8cyclictest33-21ksoftirqd/220:50:262
701199514,6cyclictest33-21ksoftirqd/222:40:152
701199513,6cyclictest33-21ksoftirqd/219:10:262
701199512,7cyclictest0-21swapper/221:00:232
701199512,6cyclictest0-21swapper/221:50:222
701199512,6cyclictest0-21swapper/220:20:212
701199512,30cyclictest0-21swapper/220:27:292
701199511,7cyclictest33-21ksoftirqd/222:00:222
134491510,4ptp4l0-21swapper/120:55:161
134491510,4ptp4l0-21swapper/120:27:421
134491510,4ptp4l0-21swapper/100:21:491
134491510,4ptp4l0-21swapper/100:19:121
134491510,4ptp4l0-21swapper/023:40:220
134491510,4ptp4l0-21swapper/021:32:110
134491510,3ptp4l0-21swapper/121:06:321
701199505,8cyclictest33-21ksoftirqd/221:40:142
701199502,7cyclictest0-21swapper/223:05:212
701199502,7cyclictest0-21swapper/221:15:152
701199500,6cyclictest13297-21tr00:00:152
134491500,4ptp4l0-21swapper/321:57:463
134491500,4ptp4l0-21swapper/122:55:321
134491500,4ptp4l0-21swapper/119:30:191
134491500,4ptp4l0-21swapper/119:05:171
134491500,4ptp4l0-21swapper/119:05:161
134491500,4ptp4l0-21swapper/021:53:170
134491500,4ptp4l0-21swapper/021:25:410
134491500,4ptp4l0-21swapper/020:12:170
134491500,4ptp4l0-21swapper/019:27:310
134491500,4ptp4l0-21swapper/000:16:210
134491500,3ptp4l0-21swapper/122:32:501
701199495,5cyclictest33-21ksoftirqd/222:50:162
701199495,5cyclictest33-21ksoftirqd/220:40:202
701199495,3cyclictest121rcu_preempt19:55:052
701199494,8cyclictest33-21ksoftirqd/220:10:292
701199494,4cyclictest33-21ksoftirqd/219:25:282
701199494,10cyclictest33-21ksoftirqd/222:45:142
701199493,7cyclictest0-21swapper/219:20:132
701199493,5cyclictest33-21ksoftirqd/220:55:252
701199492,7cyclictest0-21swapper/222:35:142
701199492,6cyclictest33-21ksoftirqd/219:40:272
701199492,6cyclictest0-21swapper/223:00:152
701199491,6cyclictest33-21ksoftirqd/219:30:152
7011994914,3cyclictest33-21ksoftirqd/221:10:142
134491490,5ptp4l0-21swapper/219:05:302
134491490,5ptp4l0-21swapper/219:05:302
134491490,4ptp4l0-21swapper/323:05:503
134491490,4ptp4l0-21swapper/322:37:443
134491490,4ptp4l0-21swapper/122:22:001
134491490,4ptp4l0-21swapper/121:55:541
134491490,4ptp4l0-21swapper/121:36:071
134491490,4ptp4l0-21swapper/121:04:411
134491490,4ptp4l0-21swapper/120:17:261
134491490,4ptp4l0-21swapper/100:38:191
134491490,4ptp4l0-21swapper/100:04:581
134491490,4ptp4l0-21swapper/022:49:040
134491490,3ptp4l23471-21mailstats23:10:240
134491490,3ptp4l0-21swapper/122:00:261
701199483,7cyclictest0-21swapper/222:05:242
701199481,5cyclictest33-21ksoftirqd/222:30:122
134491480,8ptp4l0-21swapper/123:48:361
134491480,4ptp4l0-21swapper/319:22:163
134491480,4ptp4l0-21swapper/123:53:211
134491480,4ptp4l0-21swapper/123:31:241
134491480,4ptp4l0-21swapper/123:25:041
134491480,4ptp4l0-21swapper/121:21:491
134491480,4ptp4l0-21swapper/120:47:181
134491480,4ptp4l0-21swapper/100:33:311
134491480,4ptp4l0-21swapper/100:08:461
134491480,3ptp4l0-21swapper/023:07:530
134491480,3ptp4l0-21swapper/020:45:280
701199474,5cyclictest1962-21missed_timers22:25:212
134491470,8ptp4l0-21swapper/319:05:183
134491470,8ptp4l0-21swapper/319:05:173
134491470,4ptp4l0-21swapper/319:29:583
134491470,4ptp4l0-21swapper/119:58:021
134491470,3ptp4l0-21swapper/021:49:310
701199460,6cyclictest0-21swapper/221:08:132
134491460,4ptp4l0-21swapper/120:04:331
134491460,4ptp4l0-21swapper/119:48:441
134491460,4ptp4l0-21swapper/119:20:451
134491460,4ptp4l0-21swapper/022:03:420
134491460,4ptp4l0-21swapper/000:28:180
134491460,3ptp4l0-21swapper/120:30:141
134491460,3ptp4l0-21swapper/100:29:331
134491460,3ptp4l0-21swapper/019:45:160
134491460,10ptp4l0-21swapper/123:10:251
134491450,4ptp4l0-21swapper/321:05:493
701299440,3cyclictest121rcu_preempt22:00:593
701299440,2cyclictest121rcu_preempt21:54:593
134491440,4ptp4l24470-21apt-get23:15:120
134491440,4ptp4l0-21swapper/322:52:493
134491440,4ptp4l0-21swapper/123:58:281
134491440,3ptp4l0-21swapper/023:02:310
134491430,9ptp4l0-21swapper/322:59:143
134491430,9ptp4l0-21swapper/321:11:463
134491430,4ptp4l0-21swapper/119:35:151
134491430,3ptp4l14904-21apt-get21:45:121
134491430,3ptp4l0-21swapper/319:53:393
7012994237,3cyclictest41-21ksoftirqd/320:25:003
701299422,2cyclictest121rcu_preempt00:33:203
701299420,2cyclictest121rcu_preempt00:39:593
134491420,9ptp4l0-21swapper/121:12:041
134491420,6ptp4l29183-21hddtemp_smartct22:15:161
134491420,5ptp4l0-21swapper/000:35:290
134491420,4ptp4l8159-21apt-get22:40:120
134491420,4ptp4l5230-21apt-get21:25:043
134491420,4ptp4l3180-21apt-get21:20:130
134491420,4ptp4l18890-21meminfo00:10:210
134491420,4ptp4l0-21swapper/119:15:121
134491420,4ptp4l0-21swapper/020:23:560
134491420,4ptp4l0-21swapper/019:14:070
134491420,3ptp4l15053-21apt-get22:55:130
7012994136,3cyclictest41-21ksoftirqd/321:45:163
7012994135,3cyclictest41-21ksoftirqd/300:20:013
7012994130,9cyclictest41-21ksoftirqd/321:40:273
7012994121,6cyclictest41-21ksoftirqd/300:30:003
134491410,5ptp4l700999cyclictest22:35:220
134491410,5ptp4l24414-21df_inode22:05:150
134491410,5ptp4l18537-21memory23:00:203
134491410,5ptp4l0-21swapper/122:50:131
134491410,5ptp4l0-21swapper/121:50:181
134491410,5ptp4l0-21swapper/121:40:161
134491410,4ptp4l4127-21ntp_states20:10:243
134491410,4ptp4l28821-21df21:05:140
134491410,4ptp4l26236-21df_inode19:50:150
134491410,4ptp4l24535-21hddtemp_smartct22:05:161
134491410,4ptp4l19112-21iostat_ios19:35:180
134491410,4ptp4l17890-21diskstats23:00:141
134491410,4ptp4l11960-21df_inode19:20:140
134491410,4ptp4l0-21swapper/020:25:100
134491410,4ptp4l0-21swapper/019:30:220
134491410,3ptp4l31438-21apt-get23:30:113
134491410,3ptp4l20596-21apt-get19:40:031
7012994025,7cyclictest41-21ksoftirqd/320:15:233
134491400,6ptp4l0-21swapper/019:09:240
134491400,6ptp4l0-21swapper/019:09:240
134491400,5ptp4l0-21swapper/123:15:131
134491400,4ptp4l834-21/usr/sbin/munin20:05:140
134491400,4ptp4l3846-21diskstats22:30:140
134491400,4ptp4l31746-21diskstats23:30:150
134491400,4ptp4l20090-21df23:05:131
134491400,4ptp4l13673-21/usr/sbin/munin00:00:183
134491400,4ptp4l10502-21df21:35:130
134491400,4ptp4l0-21swapper/320:05:123
134491400,4ptp4l0-21swapper/319:32:263
134491400,4ptp4l0-21swapper/122:47:571
134491400,4ptp4l0-21swapper/122:25:121
134491400,3ptp4l950-21apt-get22:25:130
134491400,3ptp4l9305-21users20:20:301
134491400,3ptp4l12659-21apt-get00:00:010
7012993934,3cyclictest41-21ksoftirqd/320:25:193
7012993934,3cyclictest41-21ksoftirqd/320:05:003
7012993933,3cyclictest41-21ksoftirqd/321:30:193
134491390,5ptp4l0-21swapper/020:00:190
134491390,5ptp4l0-21swapper/019:40:020
134491390,4ptp4l22417-21missed_timers20:50:200
134491390,4ptp4l0-21swapper/323:40:143
134491390,4ptp4l0-21swapper/323:25:243
134491390,4ptp4l0-21swapper/323:17:173
134491390,4ptp4l0-21swapper/322:20:273
134491390,4ptp4l0-21swapper/322:15:213
134491390,4ptp4l0-21swapper/320:30:543
134491390,4ptp4l0-21swapper/319:12:033
134491390,4ptp4l0-21swapper/120:35:241
134491390,4ptp4l0-21swapper/119:25:261
134491390,4ptp4l0-21swapper/022:23:150
134491390,4ptp4l0-21swapper/022:16:050
134491390,4ptp4l0-21swapper/021:15:030
134491390,4ptp4l0-21swapper/021:00:280
134491390,4ptp4l0-21swapper/020:40:040
134491390,4ptp4l0-21swapper/019:55:210
134491390,4ptp4l0-21swapper/000:20:120
134491390,3ptp4l6791-21memory22:35:201
134491390,3ptp4l27087-21phc2sys19:50:241
134491390,3ptp4l1649-21/usr/sbin/munin21:15:201
134491390,3ptp4l12912-21df_inode21:40:130
134491390,3ptp4l10911-21df_inode23:55:150
134491390,3ptp4l0-21swapper/022:10:160
134491390,3ptp4l0-21swapper/020:15:180
7012993834,2cyclictest41-21ksoftirqd/323:10:273
7012993833,3cyclictest41-21ksoftirqd/321:00:003
7012993833,3cyclictest41-21ksoftirqd/320:00:003
7012993832,3cyclictest41-21ksoftirqd/323:55:213
134491380,4ptp4l25804-21cat19:50:003
134491380,4ptp4l0-21swapper/323:48:463
134491380,4ptp4l0-21swapper/323:37:363
134491380,4ptp4l0-21swapper/323:37:353
134491380,4ptp4l0-21swapper/323:20:153
134491380,4ptp4l0-21swapper/322:40:383
134491380,4ptp4l0-21swapper/322:29:043
134491380,4ptp4l0-21swapper/322:10:343
134491380,4ptp4l0-21swapper/321:15:023
134491380,4ptp4l0-21swapper/320:46:373
134491380,4ptp4l0-21swapper/320:43:203
134491380,4ptp4l0-21swapper/320:36:463
134491380,4ptp4l0-21swapper/319:40:533
134491380,4ptp4l0-21swapper/319:38:133
134491380,4ptp4l0-21swapper/300:06:013
134491380,4ptp4l0-21swapper/120:10:141
134491380,4ptp4l0-21swapper/021:11:360
134491380,4ptp4l0-21swapper/020:35:150
134491380,3ptp4l0-21swapper/322:30:193
134491380,3ptp4l0-21swapper/321:21:403
134491380,3ptp4l0-21swapper/122:40:481
134491380,3ptp4l0-21swapper/000:30:150
7012993732,3cyclictest41-21ksoftirqd/322:05:193
7012993732,3cyclictest41-21ksoftirqd/320:55:203
7012993732,3cyclictest41-21ksoftirqd/300:22:203
134491370,4ptp4l0-21swapper/321:35:563
134491370,4ptp4l0-21swapper/319:18:463
134491370,4ptp4l0-21swapper/023:20:020
134491370,3ptp4l0-21swapper/320:54:273
134491370,3ptp4l0-21swapper/023:27:460
134491360,4ptp4l1301-21snmpd00:10:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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