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2026-06-30 - 12:24
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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 Tue Jun 30, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
902221350,4sleep0483299cyclictest20:25:270
2544321340,6sleep2483499cyclictest23:20:242
134491690,29ptp4l25-21ksoftirqd/119:55:121
201862630,5sleep20-21swapper/200:20:172
134491630,4ptp4l0-21swapper/100:20:211
134491610,3ptp4l18413-21ls00:15:173
134491610,3ptp4l18413-21ls00:15:173
134491600,5ptp4l0-21swapper/219:50:032
134491600,4ptp4l0-21swapper/220:55:142
134491590,3ptp4l0-21swapper/320:55:233
134491570,4ptp4l0-21swapper/320:20:183
134491570,3ptp4l0-21swapper/300:13:013
134491570,3ptp4l0-21swapper/120:25:141
4835995610,5cyclictest41-21ksoftirqd/320:10:273
134491560,3ptp4l0-21swapper/020:05:350
134491550,7ptp4l4363-21taskset19:07:412
134491550,4ptp4l8118-21irqrtprio21:35:180
134491550,4ptp4l0-21swapper/323:01:123
134491550,13ptp4l0-21swapper/119:30:291
134491540,5ptp4l0-21swapper/221:05:162
4835995314,9cyclictest41-21ksoftirqd/320:42:593
134491530,4ptp4l0-21swapper/321:25:043
134491530,4ptp4l0-21swapper/123:16:281
134491530,3ptp4l0-21swapper/323:32:303
134491530,3ptp4l0-21swapper/121:04:391
134491530,3ptp4l0-21swapper/121:04:391
134491530,3ptp4l0-21swapper/020:30:160
134491520,4ptp4l0-21swapper/123:41:451
134491520,4ptp4l0-21swapper/023:31:110
134491520,3ptp4l0-21swapper/122:41:421
134491520,11ptp4l4064-21ls19:05:261
4835995119,4cyclictest41-21ksoftirqd/322:01:193
134491510,4ptp4l0-21swapper/123:11:221
134491510,4ptp4l0-21swapper/121:46:161
134491500,4ptp4l0-21swapper/322:27:333
134491500,4ptp4l0-21swapper/122:22:181
134491500,4ptp4l0-21swapper/122:22:181
134491500,4ptp4l0-21swapper/119:44:561
134491500,4ptp4l0-21swapper/119:44:561
134491500,4ptp4l0-21swapper/000:12:400
134491500,3ptp4l0-21swapper/221:25:002
134491500,3ptp4l0-21swapper/219:42:262
134491500,3ptp4l0-21swapper/219:42:262
134491500,3ptp4l0-21swapper/121:40:041
134491500,3ptp4l0-21swapper/120:30:401
134491500,3ptp4l0-21swapper/100:16:301
134491500,3ptp4l0-21swapper/100:16:301
134491490,4ptp4l0-21swapper/223:17:452
134491490,4ptp4l0-21swapper/222:16:032
134491490,4ptp4l0-21swapper/222:05:512
134491490,4ptp4l0-21swapper/220:49:342
134491490,4ptp4l0-21swapper/122:58:451
134491490,4ptp4l0-21swapper/100:32:361
134491490,4ptp4l0-21swapper/021:32:540
134491490,3ptp4l1301-21snmpd23:10:063
134491480,4ptp4l0-21swapper/323:08:543
134491480,4ptp4l0-21swapper/119:17:131
134491480,3ptp4l0-21swapper/219:22:122
134491480,3ptp4l0-21swapper/122:31:231
134491480,3ptp4l0-21swapper/122:03:151
483599473,3cyclictest0-21swapper/320:46:443
134491470,4ptp4l0-21swapper/223:55:252
134491470,4ptp4l0-21swapper/223:12:402
134491470,4ptp4l0-21swapper/120:10:581
134491470,4ptp4l0-21swapper/119:27:231
134491470,3ptp4l0-21swapper/322:30:133
134491470,3ptp4l0-21swapper/300:35:173
134491470,3ptp4l0-21swapper/121:55:181
4835994614,4cyclictest41-21ksoftirqd/319:31:383
483599461,1cyclictest0-21swapper/321:37:383
134491460,6ptp4l0-21swapper/319:08:293
134491460,4ptp4l0-21swapper/321:09:593
134491460,4ptp4l0-21swapper/100:08:501
134491460,4ptp4l0-21swapper/020:01:100
134491460,3ptp4l0-21swapper/322:36:413
134491460,3ptp4l0-21swapper/123:20:461
134491460,3ptp4l0-21swapper/022:20:590
134491460,3ptp4l0-21swapper/022:20:590
134491450,3ptp4l0-21swapper/321:56:393
134491450,3ptp4l0-21swapper/023:20:180
483499442,7cyclictest0-21swapper/221:00:262
483499442,7cyclictest0-21swapper/221:00:262
134491440,4ptp4l24083-21apt-get22:10:123
134491440,4ptp4l0-21swapper/122:48:171
134491440,2ptp4l0-21swapper/000:00:450
134491440,11ptp4l0-21swapper/323:22:533
4835994337,3cyclictest41-21ksoftirqd/323:59:593
4835994337,3cyclictest41-21ksoftirqd/320:00:003
4835994313,3cyclictest41-21ksoftirqd/320:33:353
4835994312,3cyclictest41-21ksoftirqd/300:06:333
4835994310,4cyclictest41-21ksoftirqd/323:51:173
4832994339,2cyclictest28763-21latency_hist00:40:000
134491430,9ptp4l0-21swapper/019:54:400
134491430,5ptp4l33-21ksoftirqd/221:40:192
134491430,5ptp4l19157-21vmstat00:15:272
134491430,5ptp4l19157-21vmstat00:15:272
134491430,5ptp4l0-21swapper/019:20:210
134491430,4ptp4l25-21ksoftirqd/123:25:201
134491430,4ptp4l1038-21apt-get23:40:112
134491430,4ptp4l0-21swapper/321:20:053
134491430,4ptp4l0-21swapper/122:28:531
134491430,4ptp4l0-21swapper/121:54:071
134491430,4ptp4l0-21swapper/000:15:200
134491430,4ptp4l0-21swapper/000:15:200
134491430,3ptp4l0-21swapper/223:06:102
134491430,3ptp4l0-21swapper/122:36:201
483599428,8cyclictest41-21ksoftirqd/321:45:153
483599428,4cyclictest41-21ksoftirqd/320:02:323
483599424,3cyclictest121rcu_preempt00:03:363
4835994237,3cyclictest41-21ksoftirqd/323:00:013
4835994236,3cyclictest41-21ksoftirqd/322:25:003
4835994236,3cyclictest41-21ksoftirqd/322:25:003
4835994235,3cyclictest41-21ksoftirqd/319:30:003
483599421,1cyclictest0-21swapper/319:24:453
4835994211,3cyclictest41-21ksoftirqd/319:45:123
483599421,12cyclictest41-21ksoftirqd/323:40:583
483599421,11cyclictest41-21ksoftirqd/323:19:023
4835994210,3cyclictest41-21ksoftirqd/321:41:193
4832994237,3cyclictest9-21ksoftirqd/020:49:590
134491420,9ptp4l0-21swapper/220:04:482
134491420,8ptp4l0-21swapper/219:45:422
134491420,7ptp4l0-21swapper/222:40:272
134491420,6ptp4l0-21swapper/019:05:260
134491420,5ptp4l15136-21df_inode23:00:140
134491420,5ptp4l0-21swapper/023:40:240
134491420,5ptp4l0-21swapper/020:40:260
134491420,5ptp4l0-21swapper/000:20:160
134491420,4ptp4l9289-21apt-get19:20:041
134491420,4ptp4l22526-21hddtemp_smartct00:25:161
134491420,4ptp4l0-21swapper/222:39:102
134491420,4ptp4l0-21swapper/219:35:222
134491420,4ptp4l0-21swapper/122:08:221
134491420,3ptp4l28846-21apt-get23:30:102
134491420,3ptp4l0-21swapper/121:20:011
134491420,10ptp4l0-21swapper/200:08:452
483599419,8cyclictest41-21ksoftirqd/322:05:223
483599418,4cyclictest41-21ksoftirqd/319:10:153
4835994135,3cyclictest41-21ksoftirqd/320:29:583
483599411,8cyclictest41-21ksoftirqd/320:39:573
483599410,2cyclictest121rcu_preempt22:45:263
4832994135,3cyclictest9-21ksoftirqd/022:20:010
4832994135,3cyclictest9-21ksoftirqd/000:35:000
134491410,5ptp4l0-21swapper/319:35:203
134491410,5ptp4l0-21swapper/121:15:131
134491410,5ptp4l0-21swapper/022:30:210
134491410,5ptp4l0-21swapper/019:55:190
134491410,4ptp4l31173-21iostat21:15:182
134491410,4ptp4l23303-21apt-get19:50:013
134491410,4ptp4l23044-21meminfo00:25:203
134491410,4ptp4l14964-21df_inode21:50:152
134491410,4ptp4l0-21swapper/223:25:162
134491410,4ptp4l0-21swapper/120:48:121
134491410,4ptp4l0-21swapper/120:36:441
134491410,4ptp4l0-21swapper/120:24:571
134491410,4ptp4l0-21swapper/023:14:380
134491410,4ptp4l0-21swapper/022:52:050
134491410,4ptp4l0-21swapper/020:20:280
134491410,3ptp4l4579-21ls19:10:000
134491410,3ptp4l26555-21apt-get23:25:130
134491410,3ptp4l23113-21ls00:25:212
134491410,3ptp4l12048-21apt-get19:25:120
134491410,3ptp4l0-21swapper/019:45:240
483599409,8cyclictest41-21ksoftirqd/323:27:073
4835994034,3cyclictest41-21ksoftirqd/320:15:583
4835994034,3cyclictest41-21ksoftirqd/300:34:583
483599401,3cyclictest121rcu_preempt21:00:373
483599401,3cyclictest121rcu_preempt21:00:373
134491400,5ptp4l0-21swapper/123:35:151
134491400,5ptp4l0-21swapper/119:55:001
134491400,4ptp4l3223-21df_inode20:15:121
134491400,4ptp4l20441-21memory22:00:220
134491400,4ptp4l16740-21latency_hist21:54:593
134491400,4ptp4l13356-21sort21:45:220
134491400,4ptp4l0-21swapper/223:50:192
134491400,4ptp4l0-21swapper/223:39:112
134491400,4ptp4l0-21swapper/222:45:262
134491400,4ptp4l0-21swapper/222:25:202
134491400,4ptp4l0-21swapper/222:22:362
134491400,4ptp4l0-21swapper/222:22:352
134491400,4ptp4l0-21swapper/222:00:282
134491400,4ptp4l0-21swapper/220:50:122
134491400,4ptp4l0-21swapper/219:57:042
134491400,4ptp4l0-21swapper/200:10:202
134491400,4ptp4l0-21swapper/123:50:111
134491400,4ptp4l0-21swapper/123:30:141
134491400,4ptp4l0-21swapper/122:15:171
134491400,4ptp4l0-21swapper/121:36:321
134491400,4ptp4l0-21swapper/120:05:141
134491400,4ptp4l0-21swapper/119:35:191
134491400,4ptp4l0-21swapper/023:58:390
134491400,4ptp4l0-21swapper/023:19:460
134491400,4ptp4l0-21swapper/022:40:170
134491400,4ptp4l0-21swapper/022:14:470
134491400,4ptp4l0-21swapper/021:25:140
134491400,4ptp4l0-21swapper/020:16:400
134491400,4ptp4l0-21swapper/019:42:320
134491400,4ptp4l0-21swapper/019:42:320
134491400,4ptp4l0-21swapper/019:38:380
134491400,4ptp4l0-21swapper/019:15:280
134491400,3ptp4l9084-21ls23:55:191
134491400,3ptp4l4453-21ls21:25:282
134491400,3ptp4l27495-21ntp_states22:15:223
134491400,3ptp4l1845-21meminfo22:30:192
134491400,3ptp4l15182-21apt-get00:10:141
134491400,3ptp4l13641-21memory00:05:270
134491400,3ptp4l0-21swapper/121:28:331
134491400,3ptp4l0-21swapper/022:27:080
483599397,7cyclictest41-21ksoftirqd/319:45:003
483599397,7cyclictest41-21ksoftirqd/319:45:003
4835993934,3cyclictest41-21ksoftirqd/321:30:133
4835993910,3cyclictest41-21ksoftirqd/319:18:223
4834993934,3cyclictest33-21ksoftirqd/221:45:202
4834993933,4cyclictest33-21ksoftirqd/220:15:232
4834993931,5cyclictest33-21ksoftirqd/220:20:322
134691390,9getstats0-21swapper/221:56:302
134491390,5ptp4l0-21swapper/121:11:231
134491390,4ptp4l32333-21/usr/sbin/munin23:35:230
134491390,4ptp4l0-21swapper/323:35:153
134491390,4ptp4l0-21swapper/322:52:123
134491390,4ptp4l0-21swapper/322:40:353
134491390,4ptp4l0-21swapper/321:16:313
134491390,4ptp4l0-21swapper/321:10:223
134491390,4ptp4l0-21swapper/300:20:133
134491390,4ptp4l0-21swapper/222:10:232
134491390,4ptp4l0-21swapper/221:35:052
134491390,4ptp4l0-21swapper/221:12:232
134491390,4ptp4l0-21swapper/220:27:062
134491390,4ptp4l0-21swapper/220:10:452
134491390,4ptp4l0-21swapper/220:05:112
134491390,4ptp4l0-21swapper/219:33:542
134491390,4ptp4l0-21swapper/219:16:072
134491390,4ptp4l0-21swapper/219:10:352
134491390,4ptp4l0-21swapper/123:48:241
134491390,4ptp4l0-21swapper/123:07:341
134491390,4ptp4l0-21swapper/122:13:311
134491390,4ptp4l0-21swapper/120:00:121
134491390,4ptp4l0-21swapper/119:11:411
134491390,4ptp4l0-21swapper/023:50:310
134491390,4ptp4l0-21swapper/023:08:560
134491390,4ptp4l0-21swapper/022:47:360
134491390,4ptp4l0-21swapper/021:55:310
134491390,4ptp4l0-21swapper/021:50:120
134491390,4ptp4l0-21swapper/021:41:370
134491390,4ptp4l0-21swapper/021:15:090
134491390,4ptp4l0-21swapper/021:06:500
134491390,4ptp4l0-21swapper/021:00:440
134491390,4ptp4l0-21swapper/021:00:440
134491390,4ptp4l0-21swapper/020:56:400
134491390,4ptp4l0-21swapper/020:10:110
134491390,4ptp4l0-21swapper/000:25:230
134491390,3ptp4l5487-21df_inode21:30:132
134491390,3ptp4l22736-21meminfo22:05:210
134491390,3ptp4l0-21swapper/320:50:213
134491390,3ptp4l0-21swapper/023:48:380
134491390,3ptp4l0-21swapper/021:11:320
134491390,3ptp4l0-21swapper/019:30:240
134491380,4ptp4l1309-21lldpd00:00:372
134491380,4ptp4l0-21swapper/223:01:052
134491380,4ptp4l0-21swapper/222:50:352
134491380,4ptp4l0-21swapper/220:37:332
134491380,4ptp4l0-21swapper/220:32:282
134491380,4ptp4l0-21swapper/219:25:152
134491380,4ptp4l0-21swapper/200:35:182
134491380,4ptp4l0-21swapper/200:33:542
134491380,4ptp4l0-21swapper/121:30:171
134491380,4ptp4l0-21swapper/121:07:451
134491380,4ptp4l0-21swapper/120:52:491
134491380,4ptp4l0-21swapper/119:45:171
134491380,4ptp4l0-21swapper/100:00:431
134491380,4ptp4l0-21swapper/022:38:130
134491380,4ptp4l0-21swapper/021:22:470
134491380,4ptp4l0-21swapper/020:50:320
134491380,3ptp4l13207-21ls20:35:200
134491380,3ptp4l0-21swapper/323:45:153
134491380,3ptp4l0-21swapper/320:05:283
134491380,3ptp4l0-21swapper/223:45:162
134491380,3ptp4l0-21swapper/121:00:011
134491380,3ptp4l0-21swapper/120:40:241
134491380,3ptp4l0-21swapper/100:37:131
134491370,4ptp4l0-21swapper/220:40:042
134491370,3ptp4l0-21swapper/222:55:432
134491370,3ptp4l0-21swapper/123:00:161
134491370,3ptp4l0-21swapper/122:50:231
134491370,3ptp4l0-21swapper/022:55:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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