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2025-12-03 - 15:45
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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 Dec 03, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
480321350,6sleep0841899cyclictest21:20:150
8419996130,4cyclictest25-21ksoftirqd/100:00:281
8419996030,10cyclictest25-21ksoftirqd/123:15:231
2847191600,4ptp4l0-21swapper/222:10:152
8419995930,10cyclictest25-21ksoftirqd/119:25:261
2847191590,4ptp4l0-21swapper/119:06:071
2847191590,4ptp4l0-21swapper/023:15:150
2847191580,3ptp4l30648-21apt-get23:25:112
2847191580,3ptp4l0-21swapper/320:01:483
8419995730,4cyclictest25-21ksoftirqd/122:00:151
8419995729,4cyclictest25-21ksoftirqd/122:50:001
8419995728,4cyclictest25-21ksoftirqd/121:25:161
8419995728,4cyclictest25-21ksoftirqd/100:00:011
8419995727,9cyclictest25-21ksoftirqd/100:35:001
8419995727,4cyclictest25-21ksoftirqd/119:45:181
8419995727,4cyclictest25-21ksoftirqd/119:35:011
2847191570,3ptp4l0-21swapper/119:23:201
8419995629,4cyclictest25-21ksoftirqd/100:20:151
8419995628,4cyclictest25-21ksoftirqd/121:10:151
8419995627,9cyclictest25-21ksoftirqd/123:35:201
8419995625,9cyclictest25-21ksoftirqd/123:00:221
8419995625,8cyclictest25-21ksoftirqd/120:55:001
8419995625,4cyclictest25-21ksoftirqd/120:05:201
8419995624,8cyclictest25-21ksoftirqd/123:25:181
8419995622,8cyclictest25-21ksoftirqd/119:50:181
2847191560,3ptp4l0-21swapper/122:39:451
8419995526,5cyclictest25-21ksoftirqd/120:35:301
8419995526,4cyclictest25-21ksoftirqd/120:40:191
8419995525,4cyclictest25-21ksoftirqd/119:15:191
8419995520,9cyclictest25-21ksoftirqd/121:45:131
2847191550,3ptp4l0-21swapper/021:30:170
8419995419,4cyclictest25-21ksoftirqd/121:30:251
2847191540,4ptp4l0-21swapper/322:41:353
2847191540,4ptp4l0-21swapper/219:55:082
122142540,4sleep00-21swapper/023:55:020
8419995327,4cyclictest25-21ksoftirqd/123:30:261
8419995327,4cyclictest25-21ksoftirqd/123:30:251
8419995321,4cyclictest25-21ksoftirqd/122:55:261
2847191530,4ptp4l0-21swapper/319:57:563
2847191530,4ptp4l0-21swapper/222:19:272
8419995226,6cyclictest25-21ksoftirqd/123:40:131
8419995217,9cyclictest25-21ksoftirqd/120:05:001
8419995215,3cyclictest25-21ksoftirqd/122:16:131
841899527,12cyclictest0-21swapper/022:35:280
841899520,6cyclictest31398-21fschecks_time00:35:160
2847191520,5ptp4l841899cyclictest20:10:270
2847191520,5ptp4l841899cyclictest20:10:270
2847191520,4ptp4l0-21swapper/320:25:533
2847191520,3ptp4l0-21swapper/220:07:182
8419995136,3cyclictest25-21ksoftirqd/123:20:251
8419995125,4cyclictest25-21ksoftirqd/121:35:181
8419995125,4cyclictest25-21ksoftirqd/120:10:281
8419995125,4cyclictest25-21ksoftirqd/120:10:281
8419995122,8cyclictest25-21ksoftirqd/100:10:211
8419995120,3cyclictest25-21ksoftirqd/119:55:141
8419995119,8cyclictest25-21ksoftirqd/100:35:141
8419995118,5cyclictest25-21ksoftirqd/121:50:151
841899516,5cyclictest32748-21awk23:30:000
2847191510,4ptp4l0-21swapper/319:46:253
8419995022,4cyclictest25-21ksoftirqd/120:25:301
841899504,7cyclictest24342-21sed23:10:200
2847191500,4ptp4l841899cyclictest00:11:320
2847191500,4ptp4l0-21swapper/323:20:183
2847191500,4ptp4l0-21swapper/323:08:413
2847191500,4ptp4l0-21swapper/322:29:213
2847191500,4ptp4l0-21swapper/319:52:243
2847191500,4ptp4l0-21swapper/319:38:553
8419994922,8cyclictest25-21ksoftirqd/121:55:251
8419994922,4cyclictest25-21ksoftirqd/121:40:211
8419994918,7cyclictest25-21ksoftirqd/120:25:011
8419994918,4cyclictest25-21ksoftirqd/100:05:151
841999490,7cyclictest22213-21sendmail-msp19:40:011
841899496,7cyclictest13124-21grep21:35:290
841899494,8cyclictest14666-21cpuspeed00:00:130
2847191490,4ptp4l0-21swapper/323:33:183
2847191490,4ptp4l0-21swapper/323:33:183
2847191490,4ptp4l0-21swapper/321:39:553
2847191490,4ptp4l0-21swapper/123:11:111
2847191490,3ptp4l0-21swapper/222:27:242
2847191490,3ptp4l0-21swapper/119:41:131
2847191490,13ptp4l9-21ksoftirqd/021:46:010
130162490,3sleep00-21swapper/022:45:250
8419994825,3cyclictest25-21ksoftirqd/120:55:091
8419994822,9cyclictest25-21ksoftirqd/100:25:261
8419994820,4cyclictest25-21ksoftirqd/100:20:001
841899486,7cyclictest0-21swapper/021:25:180
841899485,7cyclictest0-21swapper/022:42:580
841899485,6cyclictest22768-21tail23:05:280
841899484,5cyclictest9-21ksoftirqd/022:30:150
841899483,6cyclictest9-21ksoftirqd/021:00:150
841899482,11cyclictest20408-21taskset21:53:200
2847191480,6ptp4l9-21ksoftirqd/019:05:210
2847191480,4ptp4l0-21swapper/321:14:563
2847191480,4ptp4l0-21swapper/300:10:023
2847191480,4ptp4l0-21swapper/220:18:352
2847191480,3ptp4l0-21swapper/021:15:230
8419994728,7cyclictest25-21ksoftirqd/122:10:281
8419994719,3cyclictest25-21ksoftirqd/122:30:241
841899475,10cyclictest24410-21taskset19:44:140
841899473,7cyclictest15270-21gzip22:50:260
841899473,6cyclictest9-21ksoftirqd/019:10:140
841899471,6cyclictest18761-21savelog00:07:150
841899470,8cyclictest9-21ksoftirqd/019:50:300
2847191470,4ptp4l0-21swapper/020:08:380
2847191470,2ptp4l1299-21runrttasks21:17:412
2847191470,10ptp4l1293-21snmpd19:05:143
841999467,7cyclictest25-21ksoftirqd/122:05:141
841999465,3cyclictest25-21ksoftirqd/122:40:161
841999463,5cyclictest25-21ksoftirqd/120:45:191
841999463,3cyclictest25-21ksoftirqd/121:00:161
8419994630,3cyclictest25-21ksoftirqd/122:20:151
8419994619,9cyclictest25-21ksoftirqd/121:05:151
8419994619,9cyclictest25-21ksoftirqd/121:05:141
841999461,3cyclictest25-21ksoftirqd/119:14:591
841899464,6cyclictest30045-21cpuspeed_turbos21:05:140
841899464,6cyclictest30045-21cpuspeed_turbos21:05:140
841899464,10cyclictest27426-21taskset22:09:090
841899463,8cyclictest32228-21/usr/sbin/munin21:10:280
841899463,10cyclictest0-21swapper/020:20:210
841899462,11cyclictest31891-21seq22:17:080
841899462,11cyclictest29740-21seq22:14:070
841899461,7cyclictest18264-21cpuspeed_turbos20:40:130
2847191460,4ptp4l0-21swapper/222:21:582
2847191460,3ptp4l0-21swapper/200:01:052
2847191460,3ptp4l0-21swapper/120:33:351
2847191460,10ptp4l0-21swapper/223:46:242
841999454,3cyclictest25-21ksoftirqd/122:50:281
841999452,5cyclictest25-21ksoftirqd/120:15:221
841899456,7cyclictest3010-21sort23:35:150
841899455,7cyclictest0-21swapper/019:55:160
841899455,6cyclictest0-21swapper/023:40:180
841899455,5cyclictest26818-21grep00:25:180
841899455,10cyclictest21996-21taskset19:38:120
841899454,7cyclictest3872-21ls22:25:270
841899452,7cyclictest9-21ksoftirqd/019:20:000
841899450,8cyclictest9-21ksoftirqd/019:32:220
841899450,7cyclictest9-21ksoftirqd/023:30:160
841899450,7cyclictest9-21ksoftirqd/023:30:160
841899450,7cyclictest9-21ksoftirqd/021:55:190
841899450,5cyclictest101ktimersoftd/023:45:180
2847191450,9ptp4l0-21swapper/221:51:282
2847191450,3ptp4l0-21swapper/223:51:352
2847191450,12ptp4l0-21swapper/321:25:323
8421994416,4cyclictest41-21ksoftirqd/300:18:463
841999442,5cyclictest25-21ksoftirqd/122:25:271
841899447,7cyclictest0-21swapper/020:35:160
841899445,6cyclictest0-21swapper/020:25:430
841899442,5cyclictest15731-21date20:34:590
841899440,6cyclictest24047-21cpu00:20:130
841899440,10cyclictest1299-21runrttasks20:02:010
2847191440,9ptp4l0-21swapper/222:03:112
2847191440,9ptp4l0-21swapper/220:24:012
2847191440,4ptp4l20451-21apt-get20:45:143
2847191440,11ptp4l0-21swapper/221:25:132
2847191440,10ptp4l0-21swapper/221:02:592
8421994312,4cyclictest41-21ksoftirqd/319:32:513
842199430,3cyclictest121rcu_preempt22:20:323
8419994328,6cyclictest25-21ksoftirqd/123:45:151
841999432,7cyclictest25-21ksoftirqd/121:20:011
841899435,5cyclictest7394-21ntp_states20:15:250
841899434,15cyclictest23708-21seq00:19:160
841899432,6cyclictest101ktimersoftd/000:30:190
841899430,11cyclictest1299-21runrttasks23:02:060
2847191430,9ptp4l0-21swapper/223:10:392
2847191430,9ptp4l0-21swapper/221:43:512
2847191430,9ptp4l0-21swapper/221:11:392
2847191430,9ptp4l0-21swapper/220:25:412
2847191430,9ptp4l0-21swapper/200:39:212
2847191430,9ptp4l0-21swapper/023:24:550
2847191430,7ptp4l0-21swapper/320:12:073
2847191430,7ptp4l0-21swapper/320:12:073
2847191430,4ptp4l6078-21apt-get19:05:152
2847191430,4ptp4l25437-21apt-get22:05:112
2847191430,4ptp4l0-21swapper/322:05:263
2847191430,4ptp4l0-21swapper/321:20:583
2847191430,4ptp4l0-21swapper/223:16:022
2847191430,4ptp4l0-21swapper/221:30:212
2847191430,3ptp4l0-21swapper/321:57:273
2847191430,10ptp4l0-21swapper/219:31:182
8421994210,7cyclictest41-21ksoftirqd/320:54:593
8419994219,3cyclictest25-21ksoftirqd/123:05:021
841899428,6cyclictest0-21swapper/020:50:160
841899423,9cyclictest18250-21taskset22:58:320
841899420,7cyclictest9-21ksoftirqd/023:55:190
841899420,6cyclictest9-21ksoftirqd/019:45:160
2847191420,9ptp4l0-21swapper/323:10:333
2847191420,9ptp4l0-21swapper/223:43:082
2847191420,9ptp4l0-21swapper/221:06:052
2847191420,9ptp4l0-21swapper/221:06:052
2847191420,9ptp4l0-21swapper/220:52:482
2847191420,9ptp4l0-21swapper/220:41:162
2847191420,9ptp4l0-21swapper/220:31:192
2847191420,9ptp4l0-21swapper/200:18:192
2847191420,4ptp4l16891-21apt-get00:05:133
842199416,3cyclictest121rcu_preempt21:40:173
841999413,3cyclictest121rcu_preempt23:50:211
841899414,6cyclictest26348-21gunzip20:55:240
841899413,6cyclictest9-21ksoftirqd/019:20:240
841899413,11cyclictest15664-21taskset21:41:510
2847191410,9ptp4l0-21swapper/222:39:022
2847191410,8ptp4l0-21swapper/222:56:192
2847191410,8ptp4l0-21swapper/222:41:342
2847191410,8ptp4l0-21swapper/221:39:502
2847191410,8ptp4l0-21swapper/220:38:162
2847191410,5ptp4l0-21swapper/320:40:193
2847191410,5ptp4l0-21swapper/223:00:242
2847191410,4ptp4l26353-21apt-get00:25:153
2847191410,4ptp4l1587-21apt-get20:05:123
2847191410,4ptp4l0-21swapper/322:52:273
2847191410,3ptp4l4543-21apt-get21:20:141
2847191410,3ptp4l2924-21apt-get23:35:133
2847191410,3ptp4l20704-21apt-get23:05:032
842199409,3cyclictest41-21ksoftirqd/319:21:293
8421994036,2cyclictest41-21ksoftirqd/320:20:273
8421994015,4cyclictest41-21ksoftirqd/319:19:263
842199401,2cyclictest121rcu_preempt22:45:163
841899404,5cyclictest0-21swapper/022:00:240
841899401,7cyclictest101ktimersoftd/020:45:190
2847191400,8ptp4l0-21swapper/221:58:152
2847191400,5ptp4l30289-21unixbench_multi00:30:273
2847191400,5ptp4l21903-21grep20:45:302
2847191400,5ptp4l0-21swapper/322:30:193
2847191400,5ptp4l0-21swapper/321:15:283
2847191400,5ptp4l0-21swapper/300:00:153
2847191400,5ptp4l0-21swapper/223:35:132
2847191400,4ptp4l5253-21apt-get23:40:123
2847191400,4ptp4l17848-21meminfo00:05:212
2847191400,4ptp4l0-21swapper/322:10:153
2847191400,4ptp4l0-21swapper/222:51:422
2847191400,4ptp4l0-21swapper/221:24:452
2847191400,4ptp4l0-21swapper/219:35:232
2847191400,3ptp4l16318-21irqstats19:25:202
2847191390,5ptp4l0-21swapper/220:00:132
2847191390,4ptp4l0-21swapper/323:55:293
2847191390,4ptp4l0-21swapper/323:46:413
2847191390,4ptp4l0-21swapper/323:15:203
2847191390,4ptp4l0-21swapper/323:00:253
2847191390,4ptp4l0-21swapper/322:00:263
2847191390,4ptp4l0-21swapper/321:07:283
2847191390,4ptp4l0-21swapper/321:07:273
2847191390,4ptp4l0-21swapper/319:40:213
2847191390,4ptp4l0-21swapper/319:25:253
2847191390,4ptp4l0-21swapper/223:55:192
2847191390,4ptp4l0-21swapper/222:47:322
2847191390,4ptp4l0-21swapper/220:10:292
2847191390,4ptp4l0-21swapper/220:10:292
2847191390,4ptp4l0-21swapper/219:54:252
2847191390,4ptp4l0-21swapper/219:40:062
2847191390,4ptp4l0-21swapper/219:16:292
2847191390,4ptp4l0-21swapper/219:12:572
2847191390,4ptp4l0-21swapper/200:33:372
2847191390,4ptp4l0-21swapper/200:24:182
2847191390,4ptp4l0-21swapper/200:11:102
2847191390,4ptp4l0-21swapper/022:23:180
2847191390,3ptp4l27602-21/usr/sbin/munin21:00:243
2847191390,3ptp4l25167-21ntp_states00:20:243
2847191390,3ptp4l0-21swapper/320:18:593
2847191390,3ptp4l0-21swapper/223:32:522
2847191390,3ptp4l0-21swapper/223:32:522
2847191390,3ptp4l0-21swapper/222:34:262
2847191390,3ptp4l0-21swapper/200:27:532
8421993826,9cyclictest41-21ksoftirqd/323:25:263
2847191380,5ptp4l0-21swapper/322:15:153
2847191380,4ptp4l9811-21irqrtprio21:30:203
2847191380,4ptp4l842199cyclictest23:52:073
2847191380,4ptp4l15899-21cpuspeed_turbos20:35:163
2847191380,4ptp4l0-21swapper/322:55:153
2847191380,4ptp4l0-21swapper/321:50:173
2847191380,4ptp4l0-21swapper/321:49:123
2847191380,4ptp4l0-21swapper/320:55:263
2847191380,4ptp4l0-21swapper/320:30:553
2847191380,4ptp4l0-21swapper/319:10:283
2847191380,4ptp4l0-21swapper/223:20:152
2847191380,4ptp4l0-21swapper/221:46:402
2847191380,4ptp4l0-21swapper/219:48:062
2847191380,4ptp4l0-21swapper/219:20:102
2847191380,4ptp4l0-21swapper/019:29:270
2847191380,3ptp4l0-21swapper/220:55:402
2847191370,4ptp4l0-21swapper/322:39:033
2847191370,4ptp4l0-21swapper/300:37:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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