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2026-06-09 - 06:34
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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 09, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48072690,5sleep30-21swapper/319:05:283
134491600,6ptp4l33-21ksoftirqd/223:10:252
134491600,5ptp4l25115-21ps21:00:173
134491600,4ptp4l0-21swapper/221:20:592
134491600,19ptp4l11300-21sed20:30:181
134491600,16ptp4l0-21swapper/221:50:272
134491580,4ptp4l0-21swapper/222:25:072
134491580,19ptp4l25-21ksoftirqd/119:49:141
134491570,9ptp4l0-21swapper/221:15:422
134491570,5ptp4l0-21swapper/200:10:182
134491570,5ptp4l0-21swapper/122:40:221
134491570,3ptp4l474-21ls20:05:283
134491560,13ptp4l0-21swapper/123:50:241
134491550,4ptp4l0-21swapper/222:40:372
134491550,4ptp4l0-21swapper/222:09:032
134491550,4ptp4l0-21swapper/100:17:001
134491550,3ptp4l0-21swapper/020:10:190
134491540,4ptp4l0-21swapper/220:37:012
134491540,4ptp4l0-21swapper/220:11:032
134491540,13ptp4l0-21swapper/121:03:441
134491530,3ptp4l0-21swapper/223:35:162
134491530,3ptp4l0-21swapper/123:13:101
134491530,3ptp4l0-21swapper/119:40:131
134491530,3ptp4l0-21swapper/021:27:150
134491530,12ptp4l0-21swapper/221:40:132
134491520,9ptp4l2867-21apt-get19:05:022
134491520,4ptp4l0-21swapper/219:28:312
134491510,4ptp4l0-21swapper/221:38:452
134491510,4ptp4l0-21swapper/219:32:462
134491510,4ptp4l0-21swapper/123:40:131
134491510,2ptp4l0-21swapper/021:10:230
134491510,2ptp4l0-21swapper/000:35:280
134491510,12ptp4l0-21swapper/222:30:132
134491500,4ptp4l0-21swapper/323:49:283
134491500,4ptp4l0-21swapper/221:33:202
134491500,4ptp4l0-21swapper/122:38:011
134491500,4ptp4l0-21swapper/121:40:551
134491500,4ptp4l0-21swapper/120:41:531
134491500,4ptp4l0-21swapper/119:21:471
134491500,3ptp4l0-21swapper/223:51:372
134491500,3ptp4l0-21swapper/100:00:551
134491500,2ptp4l13313-21if_enp4s019:25:171
134491490,4ptp4l0-21swapper/223:17:182
134491490,4ptp4l0-21swapper/222:51:282
134491490,4ptp4l0-21swapper/222:00:082
134491490,4ptp4l0-21swapper/221:55:492
134491490,4ptp4l0-21swapper/200:02:142
134491490,4ptp4l0-21swapper/123:03:391
134491490,3ptp4l0-21swapper/121:27:221
134491490,10ptp4l0-21swapper/120:45:141
134491480,4ptp4l0-21swapper/321:11:443
134491480,4ptp4l0-21swapper/223:32:172
134491480,4ptp4l0-21swapper/223:22:472
134491480,4ptp4l0-21swapper/223:05:122
134491480,4ptp4l0-21swapper/119:10:271
134491480,3ptp4l0-21swapper/123:29:371
134491480,3ptp4l0-21swapper/121:13:351
134491470,4ptp4l0-21swapper/119:06:241
134491470,3ptp4l0-21swapper/122:47:141
134491470,10ptp4l0-21swapper/022:21:100
580599461,2cyclictest0-21swapper/219:55:392
580599452,3cyclictest0-21swapper/220:20:182
134491450,4ptp4l101ktimersoftd/021:30:140
134491450,4ptp4l0-21swapper/121:15:231
134491450,4ptp4l0-21swapper/120:15:291
134491450,3ptp4l0-21swapper/200:34:532
134491450,3ptp4l0-21swapper/120:55:071
134491440,4ptp4l6069-21apt-get20:20:090
134491440,4ptp4l0-21swapper/219:16:452
134491440,3ptp4l0-21swapper/220:01:242
134491440,3ptp4l0-21swapper/123:06:221
134491440,3ptp4l0-21swapper/022:19:450
134491440,3ptp4l0-21swapper/021:56:030
134491430,9ptp4l0-21swapper/220:52:372
134491430,9ptp4l0-21swapper/022:07:500
134491430,8ptp4l0-21swapper/019:38:080
134491430,7ptp4l0-21swapper/122:59:241
134491430,6ptp4l21871-21irqstats00:20:180
134491430,5ptp4l0-21swapper/020:50:270
134491430,4ptp4l26830-21apt-get21:05:113
134491430,4ptp4l2318-21gnome-shell22:18:581
134491430,4ptp4l12808-21apt-get19:25:120
134491430,4ptp4l0-21swapper/219:40:552
134491430,3ptp4l0-21swapper/300:23:593
134491430,3ptp4l0-21swapper/121:46:281
134491430,10ptp4l0-21swapper/220:32:412
134491430,10ptp4l0-21swapper/022:10:070
5807994237,3cyclictest41-21ksoftirqd/322:35:003
46198420,15rtkit-daemon1301-21snmpd23:18:113
134491420,5ptp4l33-21ksoftirqd/200:15:202
134491420,5ptp4l0-21swapper/221:25:222
134491420,5ptp4l0-21swapper/100:20:141
134491420,4ptp4l8192-21apt-get19:15:121
134491420,4ptp4l22796-21iostat19:45:190
134491420,4ptp4l19934-21apt-get19:40:130
134491420,4ptp4l10184-21users21:35:280
134491420,4ptp4l0-21swapper/123:21:241
134491420,4ptp4l0-21swapper/023:40:120
134491420,3ptp4l15104-21apt-get19:30:120
134491420,2ptp4l121rcu_preempt00:32:123
5807994135,3cyclictest41-21ksoftirqd/320:00:003
5807994127,4cyclictest41-21ksoftirqd/323:10:243
134491410,5ptp4l0-21swapper/020:30:180
134491410,4ptp4l32451-21memory20:05:240
134491410,4ptp4l32369-21diskstats22:25:131
134491410,4ptp4l32267-21irqstats21:15:180
134491410,4ptp4l30146-21memory20:00:200
134491410,4ptp4l24581-21apt-get19:50:113
134491410,4ptp4l24581-21apt-get19:50:113
134491410,4ptp4l24443-21ntp_states00:25:230
134491410,4ptp4l17715-21apt-get21:55:103
134491410,4ptp4l13390-21hddtemp_smartct20:35:171
134491410,4ptp4l0-21swapper/220:42:572
134491410,4ptp4l0-21swapper/020:15:120
134491410,3ptp4l559-21ls20:05:302
134491410,3ptp4l21644-21ls22:00:270
134491410,3ptp4l1601-21df20:10:141
134491410,3ptp4l11403-21iostat_ios21:40:180
134491400,6ptp4l9-21ksoftirqd/023:45:130
134491400,5ptp4l3212-21/usr/sbin/munin22:30:240
134491400,5ptp4l15849-21ps20:40:183
134491400,5ptp4l1301-21snmpd19:29:353
134491400,5ptp4l0-21swapper/323:20:113
134491400,5ptp4l0-21swapper/320:28:303
134491400,5ptp4l0-21swapper/320:00:173
134491400,5ptp4l0-21swapper/200:25:122
134491400,5ptp4l0-21swapper/200:20:222
134491400,5ptp4l0-21swapper/023:20:160
134491400,5ptp4l0-21swapper/019:50:260
134491400,5ptp4l0-21swapper/019:50:260
134491400,5ptp4l0-21swapper/000:30:270
134491400,4ptp4l7008-21ls20:20:183
134491400,4ptp4l4521-21df22:35:120
134491400,4ptp4l3689-21users22:30:271
134491400,4ptp4l28151-21sendmail_mailqu19:55:280
134491400,4ptp4l25-21ksoftirqd/121:35:291
134491400,4ptp4l23957-21memory23:15:191
134491400,4ptp4l18564-21meminfo19:35:212
134491400,4ptp4l14133-21df00:05:160
134491400,4ptp4l0-21swapper/320:48:493
134491400,4ptp4l0-21swapper/320:30:113
134491400,4ptp4l0-21swapper/319:47:273
134491400,4ptp4l0-21swapper/223:55:292
134491400,4ptp4l0-21swapper/221:05:262
134491400,4ptp4l0-21swapper/221:00:222
134491400,4ptp4l0-21swapper/220:45:302
134491400,4ptp4l0-21swapper/219:50:232
134491400,4ptp4l0-21swapper/219:50:232
134491400,4ptp4l0-21swapper/219:10:042
134491400,4ptp4l0-21swapper/200:09:052
134491400,4ptp4l0-21swapper/121:30:191
134491400,4ptp4l0-21swapper/119:31:581
134491400,4ptp4l0-21swapper/021:05:300
134491400,4ptp4l0-21swapper/021:02:560
134491400,4ptp4l0-21swapper/020:25:220
134491400,4ptp4l0-21swapper/019:20:190
134491400,3ptp4l9463-21meminfo21:35:213
134491400,3ptp4l8792-21hddtemp_smartct20:25:152
134491400,3ptp4l4257-21apt-get23:45:021
134491400,3ptp4l29918-21apt-get23:30:110
134491400,3ptp4l22464-21df_inode20:55:130
134491400,3ptp4l19555-21irqstats00:15:200
134491400,3ptp4l16840-21ls20:40:270
134491400,3ptp4l12742-21ntp_states00:00:240
134491400,3ptp4l11750-21df_inode22:50:121
134491400,3ptp4l1143-21ls22:25:260
134491400,3ptp4l10717-21df19:20:123
134491400,3ptp4l0-21swapper/319:10:183
134491400,3ptp4l0-21swapper/119:36:421
5807993933,3cyclictest41-21ksoftirqd/322:50:163
5807993932,4cyclictest41-21ksoftirqd/300:15:163
5804993934,3cyclictest25-21ksoftirqd/100:10:131
134491390,5ptp4l0-21swapper/321:40:133
134491390,5ptp4l0-21swapper/300:00:083
134491390,5ptp4l0-21swapper/023:35:280
134491390,5ptp4l0-21swapper/022:45:090
134491390,4ptp4l29394-21cstates20:00:121
134491390,4ptp4l2670-21/usr/sbin/munin21:20:241
134491390,4ptp4l23251-21df_inode23:15:130
134491390,4ptp4l0-21swapper/323:50:483
134491390,4ptp4l0-21swapper/323:30:223
134491390,4ptp4l0-21swapper/322:55:113
134491390,4ptp4l0-21swapper/321:34:053
134491390,4ptp4l0-21swapper/320:52:473
134491390,4ptp4l0-21swapper/320:39:493
134491390,4ptp4l0-21swapper/319:40:013
134491390,4ptp4l0-21swapper/223:45:242
134491390,4ptp4l0-21swapper/223:43:402
134491390,4ptp4l0-21swapper/223:27:522
134491390,4ptp4l0-21swapper/222:55:112
134491390,4ptp4l0-21swapper/222:45:062
134491390,4ptp4l0-21swapper/222:23:312
134491390,4ptp4l0-21swapper/222:16:422
134491390,4ptp4l0-21swapper/221:45:412
134491390,4ptp4l0-21swapper/221:11:332
134491390,4ptp4l0-21swapper/220:17:452
134491390,4ptp4l0-21swapper/219:45:342
134491390,4ptp4l0-21swapper/121:09:411
134491390,4ptp4l0-21swapper/120:25:331
134491390,4ptp4l0-21swapper/120:20:121
134491390,4ptp4l0-21swapper/119:55:141
134491390,4ptp4l0-21swapper/023:25:210
134491390,4ptp4l0-21swapper/022:55:150
134491390,4ptp4l0-21swapper/021:21:000
134491390,4ptp4l0-21swapper/020:35:060
134491390,4ptp4l0-21swapper/019:15:110
134491390,4ptp4l0-21swapper/019:10:230
134491390,4ptp4l0-21swapper/019:05:340
134491390,3ptp4l30935-21ls23:30:201
134491390,3ptp4l22806-21hddtemp_smartct22:05:141
134491390,3ptp4l19003-21awk21:55:231
134491390,3ptp4l10817-21diskstats19:20:132
134491380,5ptp4l0-21swapper/222:35:002
134491380,5ptp4l0-21swapper/121:50:011
134491380,5ptp4l0-21swapper/000:10:160
134491380,4ptp4l12791-21python22:50:230
134491380,4ptp4l0-21swapper/323:55:303
134491380,4ptp4l0-21swapper/323:35:223
134491380,4ptp4l0-21swapper/323:28:313
134491380,4ptp4l0-21swapper/323:05:023
134491380,4ptp4l0-21swapper/323:01:003
134491380,4ptp4l0-21swapper/322:45:083
134491380,4ptp4l0-21swapper/322:21:033
134491380,4ptp4l0-21swapper/322:17:273
134491380,4ptp4l0-21swapper/322:07:253
134491380,4ptp4l0-21swapper/321:49:593
134491380,4ptp4l0-21swapper/320:17:173
134491380,4ptp4l0-21swapper/300:37:543
134491380,4ptp4l0-21swapper/300:25:063
134491380,4ptp4l0-21swapper/300:05:223
134491380,4ptp4l0-21swapper/222:12:072
134491380,4ptp4l0-21swapper/220:59:432
134491380,4ptp4l0-21swapper/200:37:142
134491380,4ptp4l0-21swapper/123:55:141
134491380,4ptp4l0-21swapper/122:15:001
134491380,4ptp4l0-21swapper/122:00:271
134491380,4ptp4l0-21swapper/120:05:251
134491380,4ptp4l0-21swapper/119:50:381
134491380,4ptp4l0-21swapper/119:50:381
134491380,4ptp4l0-21swapper/100:38:161
134491380,4ptp4l0-21swapper/100:31:361
134491380,4ptp4l0-21swapper/100:05:301
134491380,4ptp4l0-21swapper/023:12:090
134491380,4ptp4l0-21swapper/023:05:280
134491380,4ptp4l0-21swapper/023:00:270
134491380,4ptp4l0-21swapper/022:40:160
134491380,4ptp4l0-21swapper/021:53:170
134491380,3ptp4l30075-21df_inode22:20:151
134491380,3ptp4l14252-21ntpq21:45:230
134491380,3ptp4l0-21swapper/321:27:133
134491380,3ptp4l0-21swapper/321:23:433
134491380,3ptp4l0-21swapper/320:11:043
134491380,3ptp4l0-21swapper/319:30:063
134491380,3ptp4l0-21swapper/319:15:083
134491380,3ptp4l0-21swapper/300:10:203
134491380,3ptp4l0-21swapper/023:55:170
134491380,3ptp4l0-21swapper/020:45:210
134491380,2ptp4l7847-21irqstats23:50:180
134491370,4ptp4l0-21swapper/322:27:183
134491370,4ptp4l0-21swapper/322:00:133
134491370,4ptp4l0-21swapper/321:52:493
134491370,4ptp4l0-21swapper/320:56:513
134491370,4ptp4l0-21swapper/223:00:432
134491370,4ptp4l0-21swapper/100:28:241
134491370,3ptp4l0-21swapper/319:35:173
134491370,3ptp4l0-21swapper/123:36:401
5804993629,4cyclictest25-21ksoftirqd/120:54:051
134491360,4ptp4l0-21swapper/323:40:033
134491360,3ptp4l0-21swapper/322:40:373
134491350,4ptp4l0-21swapper/322:36:563
134491350,3ptp4l0-21swapper/321:16:353
134491340,3ptp4l0-21swapper/322:13:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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