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2026-06-20 - 04:17
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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 Sat Jun 20, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491690,4ptp4l18255-21apt-get23:15:112
134491680,4ptp4l0-21swapper/200:00:012
165572620,3sleep116562-21irqrtprio22:00:171
134491590,9ptp4l0-21swapper/221:41:412
1731995827,9cyclictest9-21ksoftirqd/020:55:200
134491580,7ptp4l0-21swapper/219:05:092
134491580,4ptp4l0-21swapper/223:02:142
134491570,3ptp4l0-21swapper/222:14:482
134491560,4ptp4l0-21swapper/319:05:193
134491560,4ptp4l0-21swapper/219:57:412
134491560,4ptp4l0-21swapper/022:40:220
134491560,3ptp4l0-21swapper/219:20:182
134491560,12ptp4l0-21swapper/123:40:211
173199550,13cyclictest9-21ksoftirqd/019:50:120
134491550,4ptp4l0-21swapper/200:39:142
134491550,3ptp4l0-21swapper/120:45:251
134491550,3ptp4l0-21swapper/120:25:171
173199542,7cyclictest9-21ksoftirqd/021:10:210
134491540,5ptp4l0-21swapper/119:36:451
134491540,4ptp4l0-21swapper/223:34:472
134491540,4ptp4l0-21swapper/222:16:142
134491540,4ptp4l0-21swapper/219:49:382
134491540,4ptp4l0-21swapper/200:05:232
134491540,3ptp4l0-21swapper/219:40:172
1731995327,2cyclictest9-21ksoftirqd/022:07:190
134491530,4ptp4l0-21swapper/319:34:133
134491530,4ptp4l0-21swapper/319:15:143
134491530,4ptp4l0-21swapper/220:32:282
134491530,4ptp4l0-21swapper/220:04:282
134491530,4ptp4l0-21swapper/123:34:551
134491530,3ptp4l0-21swapper/021:20:580
173199525,9cyclictest9-21ksoftirqd/023:50:150
173199524,5cyclictest9-21ksoftirqd/020:30:000
173199523,6cyclictest9-21ksoftirqd/022:55:010
134491520,4ptp4l0-21swapper/222:24:322
134491520,4ptp4l0-21swapper/221:37:332
173199516,8cyclictest9-21ksoftirqd/021:45:190
173199516,8cyclictest9-21ksoftirqd/021:45:190
173199516,6cyclictest9-21ksoftirqd/021:50:150
173199510,7cyclictest101ktimersoftd/023:05:260
134491510,4ptp4l0-21swapper/222:35:322
134491510,4ptp4l0-21swapper/200:16:292
134491510,4ptp4l0-21swapper/023:19:240
173199505,8cyclictest9-21ksoftirqd/019:35:240
173199505,8cyclictest9-21ksoftirqd/000:10:250
173199502,7cyclictest14514-21grep00:15:180
134491500,4ptp4l0-21swapper/223:48:092
134491500,4ptp4l0-21swapper/222:49:452
134491500,4ptp4l0-21swapper/200:26:242
134491500,3ptp4l0-21swapper/021:15:270
173499492,44cyclictest23341-21cut21:05:203
173199496,5cyclictest9-21ksoftirqd/022:20:000
173199495,7cyclictest9-21ksoftirqd/020:00:120
173199495,5cyclictest9-21ksoftirqd/020:05:130
173199495,5cyclictest9-21ksoftirqd/019:14:590
173199494,7cyclictest9-21ksoftirqd/022:45:250
173199493,5cyclictest9-21ksoftirqd/023:25:270
173199492,6cyclictest0-21swapper/019:55:210
1731994921,7cyclictest9-21ksoftirqd/023:45:130
173199491,5cyclictest9-21ksoftirqd/019:45:260
134491490,4ptp4l0-21swapper/222:41:162
134491490,4ptp4l0-21swapper/000:21:100
173199485,7cyclictest9-21ksoftirqd/021:35:240
173199485,6cyclictest9-21ksoftirqd/000:40:010
173199485,5cyclictest9-21ksoftirqd/022:25:010
173199485,5cyclictest9-21ksoftirqd/019:44:590
173199485,4cyclictest9-21ksoftirqd/020:45:180
173199484,5cyclictest9-21ksoftirqd/020:50:260
173199484,2cyclictest0-21swapper/021:55:190
173199483,5cyclictest9-21ksoftirqd/020:40:190
1731994810,3cyclictest9-21ksoftirqd/022:28:030
173199480,11cyclictest9-21ksoftirqd/021:08:110
134491480,4ptp4l0-21swapper/320:37:173
134491480,4ptp4l0-21swapper/200:31:412
134491480,3ptp4l0-21swapper/022:10:270
134491480,12ptp4l0-21swapper/122:25:581
134491480,10ptp4l0-21swapper/220:15:232
173199474,9cyclictest9-21ksoftirqd/000:25:190
173199474,5cyclictest9-21ksoftirqd/023:35:150
173199473,6cyclictest9-21ksoftirqd/000:00:010
173199473,5cyclictest9-21ksoftirqd/022:30:020
173199472,5cyclictest11226-21cut19:30:130
173199470,5cyclictest2022-21sed20:20:140
134491470,4ptp4l0-21swapper/320:34:353
134491470,4ptp4l0-21swapper/219:17:472
173199465,8cyclictest9-21ksoftirqd/023:00:290
173199464,5cyclictest9-21ksoftirqd/022:00:190
173199464,5cyclictest9-21ksoftirqd/000:00:120
173199464,4cyclictest9-21ksoftirqd/022:55:290
173199464,3cyclictest9-21ksoftirqd/019:20:180
173199463,5cyclictest9-21ksoftirqd/000:05:260
173199462,5cyclictest9-21ksoftirqd/023:30:140
1731994618,7cyclictest9-21ksoftirqd/019:29:050
1731994616,5cyclictest9-21ksoftirqd/020:15:250
134491460,4ptp4l0-21swapper/319:54:553
134491460,4ptp4l0-21swapper/319:38:573
134491460,4ptp4l0-21swapper/219:10:012
134491460,4ptp4l0-21swapper/000:30:510
134491460,3ptp4l0-21swapper/021:29:150
173299453,40cyclictest0-21swapper/119:22:391
173199454,8cyclictest9-21ksoftirqd/020:35:200
173199453,7cyclictest9-21ksoftirqd/020:30:230
173199453,6cyclictest9-21ksoftirqd/019:15:120
173199453,5cyclictest9-21ksoftirqd/023:10:130
173199452,6cyclictest9-21ksoftirqd/021:30:160
173199452,6cyclictest0-21swapper/021:41:390
173199452,3cyclictest9-21ksoftirqd/023:40:130
134491450,9ptp4l0-21swapper/223:54:522
134491450,5ptp4l0-21swapper/323:15:093
173199442,2cyclictest0-21swapper/021:00:180
134491440,8ptp4l0-21swapper/121:40:181
134491440,3ptp4l0-21swapper/119:14:451
134491440,2ptp4l0-21swapper/123:53:121
173499430,2cyclictest137891phc2sys00:15:113
173199436,7cyclictest30752-21ps20:10:230
173199434,4cyclictest32414-21df_abs22:35:130
173199430,6cyclictest9-21ksoftirqd/023:24:410
134491430,9ptp4l0-21swapper/220:50:032
134491430,5ptp4l0-21swapper/321:55:203
134491430,5ptp4l0-21swapper/223:25:132
134491430,4ptp4l4291-21apt-get20:25:122
1734994237,3cyclictest41-21ksoftirqd/323:00:003
173299422,38cyclictest0-21swapper/121:11:191
134491420,9ptp4l0-21swapper/220:09:502
134491420,8ptp4l0-21swapper/219:51:282
134491420,6ptp4l22476-21ls00:30:263
134491420,6ptp4l0-21swapper/320:55:203
134491420,5ptp4l28674-21meminfo23:35:191
134491420,5ptp4l173299cyclictest21:35:121
134491420,4ptp4l3347-21ls21:30:251
134491420,4ptp4l31164-21users20:10:281
134491420,4ptp4l13973-21diskstats23:05:131
134491420,4ptp4l0-21swapper/120:57:591
134491420,4ptp4l0-21swapper/100:10:141
134491410,9ptp4l0-21swapper/221:03:122
134491410,6ptp4l7759-21ntpq20:30:231
134491410,5ptp4l32543-21hddtemp_smartct22:35:141
134491410,5ptp4l2941-21irqstats22:40:171
134491410,5ptp4l16414-21iostat20:50:161
134491410,5ptp4l0-21swapper/122:20:251
134491410,4ptp4l4116-21apt-get19:15:111
134491410,4ptp4l20880-21df_inode23:20:131
134491410,4ptp4l20705-21df_inode22:10:141
134491410,4ptp4l18406-21df_inode22:05:141
134491410,4ptp4l16811-21hddtemp_smartct00:20:161
134491410,4ptp4l16531-21iostat_ios23:10:161
134491410,4ptp4l0-21swapper/323:10:093
134491410,4ptp4l0-21swapper/322:20:203
134491410,4ptp4l0-21swapper/122:59:241
134491410,4ptp4l0-21swapper/121:53:051
134491410,3ptp4l7919-21memory00:00:211
134491410,3ptp4l5518-21ntp_states22:45:221
134491410,3ptp4l3600-21ls22:40:253
134491410,3ptp4l24903-21apt-get20:00:123
134491410,3ptp4l20975-21apt-get00:30:111
134491410,3ptp4l14060-21apt-get00:15:111
134491410,10ptp4l0-21swapper/219:26:482
1733994030,9cyclictest33-21ksoftirqd/223:10:182
134491400,9ptp4l0-21swapper/220:39:372
134491400,5ptp4l18322-21fschecks_count19:45:153
134491400,5ptp4l0-21swapper/322:00:233
134491400,5ptp4l0-21swapper/319:10:133
134491400,5ptp4l0-21swapper/120:40:261
134491400,5ptp4l0-21swapper/120:35:221
134491400,5ptp4l0-21swapper/120:05:191
134491400,4ptp4l24057-21iostat_ios00:35:171
134491400,4ptp4l2333-21iostat_ios20:20:191
134491400,4ptp4l13042-21users23:00:311
134491400,4ptp4l0-21swapper/319:29:323
134491400,4ptp4l0-21swapper/300:00:143
134491400,4ptp4l0-21swapper/223:35:132
134491400,4ptp4l0-21swapper/222:00:212
134491400,4ptp4l0-21swapper/221:57:472
134491400,4ptp4l0-21swapper/200:13:512
134491400,4ptp4l0-21swapper/123:45:171
134491400,4ptp4l0-21swapper/123:15:191
134491400,4ptp4l0-21swapper/122:50:091
134491400,4ptp4l0-21swapper/121:45:141
134491400,4ptp4l0-21swapper/121:45:141
134491400,3ptp4l27354-21apt-get21:15:131
134491400,3ptp4l23352-21hddtemp_smartct23:25:161
134491400,3ptp4l18894-21df00:25:141
134491400,3ptp4l0-21swapper/121:56:311
1733993933,4cyclictest33-21ksoftirqd/221:14:172
1733993931,6cyclictest33-21ksoftirqd/220:20:442
1733993926,11cyclictest33-21ksoftirqd/200:01:002
134491390,6ptp4l0-21swapper/300:35:113
134491390,4ptp4l15744-21/usr/sbin/munin19:40:133
134491390,4ptp4l0-21swapper/323:55:263
134491390,4ptp4l0-21swapper/322:35:213
134491390,4ptp4l0-21swapper/320:42:123
134491390,4ptp4l0-21swapper/320:15:233
134491390,4ptp4l0-21swapper/300:28:323
134491390,4ptp4l0-21swapper/223:21:562
134491390,4ptp4l0-21swapper/222:30:502
134491390,4ptp4l0-21swapper/222:27:152
134491390,4ptp4l0-21swapper/221:52:152
134491390,4ptp4l0-21swapper/221:28:122
134491390,4ptp4l0-21swapper/221:22:462
134491390,4ptp4l0-21swapper/220:57:492
134491390,4ptp4l0-21swapper/220:48:132
134491390,4ptp4l0-21swapper/220:11:052
134491390,4ptp4l0-21swapper/219:37:372
134491390,4ptp4l0-21swapper/219:31:552
134491390,4ptp4l0-21swapper/119:55:191
134491390,4ptp4l0-21swapper/119:32:001
134491390,4ptp4l0-21swapper/100:08:471
134491390,3ptp4l4897-21df_inode23:55:161
134491390,3ptp4l2772-21irqstats21:30:172
134491390,3ptp4l21413-21memory21:00:221
1734993834,3cyclictest41-21ksoftirqd/320:00:013
1734993832,4cyclictest41-21ksoftirqd/323:45:113
1733993833,3cyclictest33-21ksoftirqd/221:46:402
1733993833,3cyclictest33-21ksoftirqd/221:46:402
1733993833,3cyclictest33-21ksoftirqd/221:05:192
134491380,5ptp4l0-21swapper/121:20:141
134491380,4ptp4l0-21swapper/323:40:253
134491380,4ptp4l0-21swapper/323:34:473
134491380,4ptp4l0-21swapper/323:25:193
134491380,4ptp4l0-21swapper/321:46:123
134491380,4ptp4l0-21swapper/321:46:123
134491380,4ptp4l0-21swapper/321:28:473
134491380,4ptp4l0-21swapper/320:05:033
134491380,4ptp4l0-21swapper/319:21:303
134491380,4ptp4l0-21swapper/300:05:233
134491380,4ptp4l0-21swapper/223:40:072
134491380,4ptp4l0-21swapper/222:55:352
134491380,4ptp4l0-21swapper/222:53:032
134491380,4ptp4l0-21swapper/221:17:522
134491380,4ptp4l0-21swapper/200:22:182
134491380,4ptp4l0-21swapper/122:31:021
134491380,4ptp4l0-21swapper/122:17:251
134491380,4ptp4l0-21swapper/121:25:151
134491380,4ptp4l0-21swapper/121:08:131
134491380,4ptp4l0-21swapper/120:00:131
134491380,4ptp4l0-21swapper/119:51:191
134491380,4ptp4l0-21swapper/119:40:151
134491380,4ptp4l0-21swapper/119:26:591
134491380,3ptp4l0-21swapper/223:05:362
134491380,3ptp4l0-21swapper/222:05:512
134491380,3ptp4l0-21swapper/220:41:072
1734993732,3cyclictest41-21ksoftirqd/323:35:133
1734993732,3cyclictest41-21ksoftirqd/322:15:113
134491370,4ptp4l0-21swapper/321:19:093
134491370,4ptp4l0-21swapper/320:48:423
134491370,4ptp4l0-21swapper/320:27:493
134491370,4ptp4l0-21swapper/120:15:051
134491370,4ptp4l0-21swapper/119:45:191
134491370,3ptp4l0-21swapper/323:53:573
134491370,3ptp4l0-21swapper/323:09:113
134491370,3ptp4l0-21swapper/320:54:203
134491370,2ptp4l0-21swapper/322:09:573
46198360,4rtkit-daemon0-21swapper/320:13:313
1734993631,3cyclictest41-21ksoftirqd/300:10:263
134491360,4ptp4l0-21swapper/321:40:123
134491360,3ptp4l0-21swapper/323:22:473
134491360,3ptp4l0-21swapper/322:45:043
1734993530,3cyclictest41-21ksoftirqd/321:20:183
134491350,4ptp4l0-21swapper/322:30:513
134491350,4ptp4l0-21swapper/322:10:063
134491350,1ptp4l0-21swapper/321:30:123
1734993430,3cyclictest41-21ksoftirqd/321:10:183
1734993429,3cyclictest41-21ksoftirqd/322:29:423
1734993429,3cyclictest41-21ksoftirqd/321:55:003
134491340,3ptp4l0-21swapper/300:21:543
1734993328,3cyclictest41-21ksoftirqd/320:20:193
1734993227,3cyclictest41-21ksoftirqd/322:50:253
1734993126,3cyclictest41-21ksoftirqd/321:35:233
134491300,3ptp4l0-21swapper/323:03:323
1734992621,3cyclictest41-21ksoftirqd/321:05:013
4292245,12sleep10-21swapper/119:05:241
317802154,6sleep00-21swapper/019:05:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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