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2026-05-27 - 19:16
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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 May 27, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311552680,6sleep1185899cyclictest09:20:221
134491650,4ptp4l24205-21irqrtprio11:25:202
134491650,4ptp4l24205-21irqrtprio11:25:202
134491640,3ptp4l4240-21apt-get07:15:132
13182600,7sleep2185999cyclictest11:45:222
134491590,4ptp4l0-21swapper/111:10:201
134491590,4ptp4l0-21swapper/007:59:560
134491590,3ptp4l0-21swapper/108:00:211
134491580,4ptp4l0-21swapper/107:45:261
134491580,4ptp4l0-21swapper/011:15:240
134491580,3ptp4l0-21swapper/210:58:342
134491580,15ptp4l22928-21apt-get07:55:152
134491570,5ptp4l0-21swapper/011:00:100
134491570,10ptp4l0-21swapper/207:35:242
134491560,12ptp4l31921-21apt-get07:05:122
134491550,3ptp4l0-21swapper/307:40:273
134491550,3ptp4l0-21swapper/110:09:261
134491540,4ptp4l0-21swapper/110:03:531
134491540,4ptp4l0-21swapper/010:24:350
134491540,3ptp4l0-21swapper/012:37:520
134491540,3ptp4l0-21swapper/011:30:160
134491530,4ptp4l0-21swapper/211:05:202
134491530,3ptp4l5256-21/usr/sbin/munin10:45:161
134491530,3ptp4l15821-21apt-get07:40:131
134491530,3ptp4l0-21swapper/110:10:201
134491520,4ptp4l0-21swapper/008:57:290
134491520,3ptp4l0-21swapper/211:35:172
134491520,3ptp4l0-21swapper/111:30:161
134491510,4ptp4l0-21swapper/109:49:361
134491510,4ptp4l0-21swapper/108:24:271
134491500,3ptp4l0-21swapper/211:33:592
134491500,3ptp4l0-21swapper/207:45:272
134491500,3ptp4l0-21swapper/108:25:181
134491500,18ptp4l25-21ksoftirqd/109:30:191
134491490,4ptp4l0-21swapper/312:24:423
134491490,4ptp4l0-21swapper/311:57:143
134491490,4ptp4l0-21swapper/112:01:001
134491490,4ptp4l0-21swapper/110:20:291
134491490,4ptp4l0-21swapper/109:28:581
134491490,4ptp4l0-21swapper/009:20:150
134491490,3ptp4l0-21swapper/209:08:322
134491490,3ptp4l0-21swapper/112:30:231
134491480,4ptp4l0-21swapper/312:03:483
134491480,4ptp4l0-21swapper/311:32:543
134491480,4ptp4l0-21swapper/309:54:443
134491480,4ptp4l0-21swapper/309:54:443
134491480,4ptp4l0-21swapper/210:34:032
134491480,4ptp4l0-21swapper/108:47:161
134491480,4ptp4l0-21swapper/108:37:001
134491480,4ptp4l0-21swapper/012:27:300
134491480,4ptp4l0-21swapper/010:06:390
134491480,3ptp4l0-21swapper/108:32:011
134491470,9ptp4l0-21swapper/307:05:123
134491470,4ptp4l0-21swapper/309:49:533
134491470,3ptp4l15179-21/usr/sbin/munin09:55:260
134491470,3ptp4l0-21swapper/211:23:362
134491470,3ptp4l0-21swapper/210:17:402
134491470,3ptp4l0-21swapper/109:39:101
186099461,10cyclictest121rcu_preempt08:05:263
134491460,4ptp4l0-21swapper/310:15:323
134491460,4ptp4l0-21swapper/109:01:191
134491460,3ptp4l0-21swapper/311:22:443
134491460,3ptp4l0-21swapper/211:58:292
134491460,3ptp4l0-21swapper/009:42:550
186099451,2cyclictest121rcu_preempt10:06:533
1857994539,3cyclictest9-21ksoftirqd/008:40:000
134491450,4ptp4l0-21swapper/310:53:213
134491450,4ptp4l0-21swapper/112:18:161
134491450,3ptp4l0-21swapper/111:00:121
1857994426,8cyclictest9-21ksoftirqd/009:10:170
134491440,4ptp4l25242-21apt-get08:00:133
134491440,4ptp4l0-21swapper/109:52:141
134491440,4ptp4l0-21swapper/109:52:141
134491440,3ptp4l0-21swapper/208:44:452
134491440,3ptp4l0-21swapper/110:30:111
134491440,3ptp4l0-21swapper/107:32:451
134491440,3ptp4l0-21swapper/008:54:160
134491440,10ptp4l0-21swapper/212:11:282
1860994338,3cyclictest41-21ksoftirqd/307:30:013
1860994337,4cyclictest41-21ksoftirqd/308:45:013
1860994332,9cyclictest41-21ksoftirqd/309:40:263
134691430,9getstats0-21swapper/212:07:582
134491430,9ptp4l0-21swapper/210:44:242
134491430,9ptp4l0-21swapper/210:03:082
134491430,5ptp4l8382-21users08:30:280
134491430,4ptp4l5576-21ls09:35:200
134491430,4ptp4l0-21swapper/311:38:103
134491430,3ptp4l13674-21apt-get08:45:112
134491430,3ptp4l0-21swapper/311:54:363
134491430,3ptp4l0-21swapper/112:38:181
134491430,3ptp4l0-21swapper/110:52:031
134491430,3ptp4l0-21swapper/109:18:481
134491430,3ptp4l0-21swapper/108:40:531
1859994237,3cyclictest33-21ksoftirqd/212:40:002
1857994237,3cyclictest9-21ksoftirqd/012:25:000
134491420,9ptp4l1317-21runrttasks09:22:202
134491420,9ptp4l0-21swapper/207:23:522
134491420,8ptp4l0-21swapper/007:30:410
134491420,4ptp4l7980-21memory10:50:190
134491420,4ptp4l5161-21hddtemp_smartct10:45:150
134491420,4ptp4l29834-21apt-get08:10:121
134491420,4ptp4l2470-21df09:30:130
134491420,4ptp4l0-21swapper/312:06:073
134491420,4ptp4l0-21swapper/310:41:383
134491420,4ptp4l0-21swapper/208:02:532
134491420,3ptp4l24050-21ls10:15:201
134491420,3ptp4l14207-21apt-get11:05:100
134491420,3ptp4l0-21swapper/311:40:083
134491420,3ptp4l0-21swapper/209:15:292
134491420,10ptp4l0-21swapper/209:38:222
1860994136,3cyclictest41-21ksoftirqd/311:20:003
1860994136,3cyclictest41-21ksoftirqd/307:40:013
1857994135,3cyclictest9-21ksoftirqd/010:35:000
134491410,8ptp4l0-21swapper/311:10:263
134491410,8ptp4l0-21swapper/211:19:532
134491410,5ptp4l0-21swapper/309:35:243
134491410,5ptp4l0-21swapper/308:30:243
134491410,5ptp4l0-21swapper/211:50:192
134491410,5ptp4l0-21swapper/209:00:132
134491410,5ptp4l0-21swapper/007:45:230
134491410,4ptp4l817-21ntp_states08:15:222
134491410,4ptp4l3135-21ls08:20:202
134491410,4ptp4l30404-21iostat_ios08:10:172
134491410,4ptp4l28992-21python10:25:251
134491410,4ptp4l28850-21irqstats11:35:180
134491410,4ptp4l27953-21df_inode10:25:140
134491410,4ptp4l27059-21users09:10:291
134491410,4ptp4l23874-21meminfo07:55:233
134491410,4ptp4l2357-21hddtemp_smartct07:10:150
134491410,4ptp4l20716-21df_inode07:50:151
134491410,4ptp4l14037-21df09:55:141
134491410,4ptp4l12742-21memory12:10:200
134491410,4ptp4l10295-21ntp_states09:45:220
134491410,4ptp4l0-21swapper/308:20:213
134491410,4ptp4l0-21swapper/207:29:352
134491410,4ptp4l0-21swapper/111:08:041
134491410,3ptp4l28488-21meminfo08:05:200
134491410,3ptp4l24531-21ntp_states11:25:241
134491410,3ptp4l24531-21ntp_states11:25:241
134491410,3ptp4l10547-21sshd07:25:320
134491410,3ptp4l10443-21meminfo12:05:200
134491410,3ptp4l0-21swapper/007:19:340
1860994035,3cyclictest41-21ksoftirqd/307:50:283
1860994035,3cyclictest41-21ksoftirqd/307:31:593
1857994035,3cyclictest9-21ksoftirqd/010:05:000
134491400,5ptp4l709-21grep08:15:200
134491400,5ptp4l26670-21/usr/sbin/munin08:00:270
134491400,5ptp4l0-21swapper/310:20:103
134491400,5ptp4l0-21swapper/308:46:153
134491400,5ptp4l0-21swapper/112:11:021
134491400,5ptp4l0-21swapper/110:35:021
134491400,5ptp4l0-21swapper/011:50:100
134491400,5ptp4l0-21swapper/009:50:160
134491400,5ptp4l0-21swapper/009:50:160
134491400,4ptp4l7620-21hddtemp_smartct12:00:140
134491400,4ptp4l1745-21sshd08:19:331
134491400,4ptp4l1301-21snmpd07:47:593
134491400,4ptp4l0-21swapper/312:35:123
134491400,4ptp4l0-21swapper/309:21:343
134491400,4ptp4l0-21swapper/308:19:233
134491400,4ptp4l0-21swapper/308:10:273
134491400,4ptp4l0-21swapper/212:33:162
134491400,4ptp4l0-21swapper/212:25:212
134491400,4ptp4l0-21swapper/211:41:242
134491400,4ptp4l0-21swapper/210:50:122
134491400,4ptp4l0-21swapper/210:35:382
134491400,4ptp4l0-21swapper/209:43:502
134491400,4ptp4l0-21swapper/207:41:382
134491400,4ptp4l0-21swapper/112:29:061
134491400,4ptp4l0-21swapper/112:20:191
134491400,4ptp4l0-21swapper/110:55:141
134491400,4ptp4l0-21swapper/110:40:381
134491400,4ptp4l0-21swapper/107:20:141
134491400,4ptp4l0-21swapper/011:26:360
134491400,4ptp4l0-21swapper/011:26:360
134491400,4ptp4l0-21swapper/011:10:190
134491400,4ptp4l0-21swapper/010:10:150
134491400,4ptp4l0-21swapper/009:05:210
134491400,4ptp4l0-21swapper/009:00:280
134491400,4ptp4l0-21swapper/008:48:310
134491400,4ptp4l0-21swapper/008:26:450
134491400,4ptp4l0-21swapper/008:20:210
134491400,4ptp4l0-21swapper/008:11:010
134491400,4ptp4l0-21swapper/007:42:560
134491400,4ptp4l0-21swapper/007:22:460
134491400,3ptp4l32611-21diskstats09:25:160
134491400,3ptp4l31997-21apt-get10:35:020
134491400,3ptp4l21551-21hddtemp_smartct11:20:160
134491400,3ptp4l18271-21apt-get08:55:131
134491400,3ptp4l16279-21diskstats08:50:151
1860993935,2cyclictest41-21ksoftirqd/308:40:013
1860993934,3cyclictest41-21ksoftirqd/309:20:013
1860993934,3cyclictest41-21ksoftirqd/308:50:183
134491390,5ptp4l6037-21tail11:55:211
134491390,5ptp4l0-21swapper/210:10:032
134491390,5ptp4l0-21swapper/208:25:122
134491390,4ptp4l0-21swapper/312:18:213
134491390,4ptp4l0-21swapper/312:10:573
134491390,4ptp4l0-21swapper/311:46:043
134491390,4ptp4l0-21swapper/311:25:133
134491390,4ptp4l0-21swapper/311:25:133
134491390,4ptp4l0-21swapper/310:55:223
134491390,4ptp4l0-21swapper/310:45:023
134491390,4ptp4l0-21swapper/309:25:103
134491390,4ptp4l0-21swapper/308:26:393
134491390,4ptp4l0-21swapper/307:10:013
134491390,4ptp4l0-21swapper/212:22:082
134491390,4ptp4l0-21swapper/212:17:242
134491390,4ptp4l0-21swapper/212:00:362
134491390,4ptp4l0-21swapper/211:10:372
134491390,4ptp4l0-21swapper/211:02:312
134491390,4ptp4l0-21swapper/210:49:512
134491390,4ptp4l0-21swapper/210:29:542
134491390,4ptp4l0-21swapper/210:20:092
134491390,4ptp4l0-21swapper/209:52:262
134491390,4ptp4l0-21swapper/209:52:262
134491390,4ptp4l0-21swapper/209:45:082
134491390,4ptp4l0-21swapper/209:11:232
134491390,4ptp4l0-21swapper/208:51:262
134491390,4ptp4l0-21swapper/208:35:282
134491390,4ptp4l0-21swapper/208:32:522
134491390,4ptp4l0-21swapper/208:05:232
134491390,4ptp4l0-21swapper/207:53:492
134491390,4ptp4l0-21swapper/207:32:402
134491390,4ptp4l0-21swapper/112:05:231
134491390,4ptp4l0-21swapper/111:53:201
134491390,4ptp4l0-21swapper/111:37:541
134491390,4ptp4l0-21swapper/111:15:271
134491390,4ptp4l0-21swapper/109:40:241
134491390,4ptp4l0-21swapper/108:05:291
134491390,4ptp4l0-21swapper/107:25:211
134491390,4ptp4l0-21swapper/012:15:250
134491390,4ptp4l0-21swapper/011:55:230
134491390,4ptp4l0-21swapper/011:46:100
134491390,4ptp4l0-21swapper/010:55:080
134491390,4ptp4l0-21swapper/010:40:240
134491390,4ptp4l0-21swapper/008:40:150
134491390,4ptp4l0-21swapper/007:51:130
134491390,3ptp4l3059-21ntp_states07:10:221
134491390,3ptp4l24702-21users10:15:270
134491390,3ptp4l15146-21ls11:05:183
134491390,3ptp4l0-21swapper/208:56:552
134491390,3ptp4l0-21swapper/012:30:180
46198380,4rtkit-daemon0-21swapper/107:15:201
1860993833,3cyclictest41-21ksoftirqd/311:00:273
186099382,3cyclictest121rcu_preempt10:30:163
134491380,5ptp4l0-21swapper/312:31:063
134491380,4ptp4l30319-21chrt11:40:100
134491380,4ptp4l0-21swapper/312:25:533
134491380,4ptp4l0-21swapper/310:38:023
134491380,4ptp4l0-21swapper/310:04:563
134491380,4ptp4l0-21swapper/309:55:183
134491380,4ptp4l0-21swapper/309:05:193
134491380,4ptp4l0-21swapper/309:01:403
134491380,4ptp4l0-21swapper/308:56:563
134491380,4ptp4l0-21swapper/210:07:382
134491380,4ptp4l0-21swapper/209:55:452
134491380,4ptp4l0-21swapper/209:26:082
134491380,4ptp4l0-21swapper/207:10:322
134491380,4ptp4l0-21swapper/111:46:561
134491380,3ptp4l0-21swapper/310:10:303
134491380,3ptp4l0-21swapper/307:15:183
134491380,3ptp4l0-21swapper/111:43:311
134491380,3ptp4l0-21swapper/107:59:511
134491370,5ptp4l2199migration/109:05:081
134491370,4ptp4l0-21swapper/209:31:292
134491370,4ptp4l0-21swapper/107:37:451
134491370,3ptp4l0-21swapper/309:14:403
134491370,3ptp4l0-21swapper/307:23:053
134491370,3ptp4l0-21swapper/111:23:081
134491370,3ptp4l0-21swapper/009:15:160
134491370,3ptp4l0-21swapper/007:35:130
134491360,3ptp4l0-21swapper/310:25:223
134491350,4ptp4l0-21swapper/309:32:083
46198260,5rtkit-daemon0-21swapper/007:05:340
323432113,4sleep10-21swapper/107:05:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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