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2025-12-30 - 06:21
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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 Dec 30, 2025 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
847921450,7sleep23078399cyclictest21:50:162
253882600,5sleep33078499cyclictest21:15:273
134491600,5ptp4l0-21swapper/121:30:151
134491590,4ptp4l7483-21grep00:05:280
134491590,3ptp4l0-21swapper/122:25:241
134491570,4ptp4l0-21swapper/123:17:171
134491570,3ptp4l26896-21ps21:20:181
134491570,3ptp4l0-21swapper/100:05:251
134491560,5ptp4l0-21swapper/323:35:273
134491550,4ptp4l0-21swapper/123:40:231
134491550,3ptp4l0-21swapper/122:50:211
134491550,3ptp4l0-21swapper/122:50:201
134491540,5ptp4l0-21swapper/022:42:360
134491540,4ptp4l0-21swapper/122:01:321
134491540,4ptp4l0-21swapper/021:45:000
134491530,5ptp4l0-21swapper/219:15:212
134491530,3ptp4l7956-21latency_hist21:50:000
134491530,13ptp4l0-21swapper/020:25:220
134491520,5ptp4l0-21swapper/321:13:513
134491520,4ptp4l0-21swapper/122:21:371
134491520,4ptp4l0-21swapper/122:21:371
134491520,4ptp4l0-21swapper/022:37:130
134491520,11ptp4l0-21swapper/022:09:480
134491510,4ptp4l0-21swapper/120:41:051
134491510,11ptp4l28448-21apt-get19:05:131
134491510,10ptp4l29567-21ntp_states19:05:240
30781995033,5cyclictest9-21ksoftirqd/021:05:210
134491500,6ptp4l0-21swapper/320:10:143
134491500,4ptp4l0-21swapper/323:47:523
134491500,4ptp4l0-21swapper/319:54:313
134491500,4ptp4l0-21swapper/122:45:211
134491500,4ptp4l0-21swapper/121:51:101
134491500,4ptp4l0-21swapper/121:41:081
134491500,4ptp4l0-21swapper/023:10:140
134491500,3ptp4l0-21swapper/119:35:181
30784994944,3cyclictest12388-21idleruntime-cro23:10:003
30783994912,9cyclictest33-21ksoftirqd/220:24:592
30781994934,4cyclictest9-21ksoftirqd/021:35:150
134491490,5ptp4l0-21swapper/322:19:193
134491490,4ptp4l0-21swapper/123:25:111
134491490,4ptp4l0-21swapper/122:18:071
134491490,4ptp4l0-21swapper/120:48:181
134491490,4ptp4l0-21swapper/119:46:311
134491490,4ptp4l0-21swapper/119:28:021
134491490,4ptp4l0-21swapper/119:28:021
134491490,4ptp4l0-21swapper/022:45:560
134491490,4ptp4l0-21swapper/022:10:440
134491490,4ptp4l0-21swapper/021:01:590
134491490,4ptp4l0-21swapper/019:36:110
134491490,3ptp4l0-21swapper/121:25:261
134491490,13ptp4l0-21swapper/000:30:530
134491480,5ptp4l0-21swapper/219:08:072
134491480,4ptp4l0-21swapper/123:04:221
134491480,4ptp4l0-21swapper/021:57:240
134491480,4ptp4l0-21swapper/019:30:280
134491480,4ptp4l0-21swapper/000:25:140
134491480,3ptp4l0-21swapper/122:40:561
134491480,3ptp4l0-21swapper/119:59:271
134491470,4ptp4l0-21swapper/122:12:021
134491470,4ptp4l0-21swapper/120:55:441
134491470,4ptp4l0-21swapper/120:17:341
134491470,4ptp4l0-21swapper/100:26:551
134491470,4ptp4l0-21swapper/023:42:220
134491470,4ptp4l0-21swapper/021:54:550
134491470,4ptp4l0-21swapper/020:44:380
134491470,3ptp4l0-21swapper/221:15:212
134491470,3ptp4l0-21swapper/121:15:241
134491470,3ptp4l0-21swapper/120:38:351
134491470,3ptp4l0-21swapper/020:00:290
30784994614,5cyclictest41-21ksoftirqd/322:00:263
134491460,4ptp4l0-21swapper/121:38:451
134491460,4ptp4l0-21swapper/019:14:080
134491460,3ptp4l0-21swapper/222:15:182
134491460,3ptp4l0-21swapper/120:05:271
134491460,3ptp4l0-21swapper/119:31:411
134491460,3ptp4l0-21swapper/023:31:240
134491460,3ptp4l0-21swapper/022:20:230
134491460,3ptp4l0-21swapper/022:20:230
134491460,3ptp4l0-21swapper/000:24:120
134491460,12ptp4l0-21swapper/019:49:370
134491450,4ptp4l0-21swapper/020:37:280
134491450,3ptp4l0-21swapper/223:41:252
134491450,3ptp4l0-21swapper/220:48:242
134491450,3ptp4l0-21swapper/120:05:001
134491450,3ptp4l0-21swapper/022:34:080
134491450,15ptp4l1301-21snmpd23:55:542
134491450,12ptp4l33-21ksoftirqd/220:28:102
134491450,11ptp4l0-21swapper/020:30:090
30783994431,3cyclictest33-21ksoftirqd/221:25:222
134491440,5ptp4l0-21swapper/322:30:133
134491440,4ptp4l8010-21apt-get23:00:133
134491440,4ptp4l0-21swapper/023:09:210
134491440,4ptp4l0-21swapper/000:00:020
134491440,3ptp4l0-21swapper/000:18:070
3078499434,7cyclictest134491ptp4l23:50:263
3078199430,2cyclictest121rcu_preempt19:42:390
134491430,6ptp4l0-21swapper/020:10:200
134491430,5ptp4l14970-21apt-get22:05:152
134491430,5ptp4l0-21swapper/320:50:193
134491430,4ptp4l0-21swapper/123:57:161
134491430,3ptp4l0-21swapper/200:33:102
30783994224,16cyclictest33-21ksoftirqd/222:05:012
30782994227,3cyclictest25-21ksoftirqd/120:30:231
30781994228,4cyclictest9-21ksoftirqd/019:15:280
134491420,5ptp4l0-21swapper/320:20:283
134491420,4ptp4l21707-21apt-get21:10:110
134491420,4ptp4l11603-21meminfo00:15:231
134491420,4ptp4l10352-21apt-get21:55:141
134491420,4ptp4l0-21swapper/322:28:413
134491420,4ptp4l0-21swapper/123:52:031
134491420,4ptp4l0-21swapper/121:00:431
134491420,3ptp4l0-21swapper/020:15:120
134491420,15ptp4l0-21swapper/122:37:101
30782994136,3cyclictest25-21ksoftirqd/120:30:001
3078299413,3cyclictest25-21ksoftirqd/100:38:521
30782994126,4cyclictest25-21ksoftirqd/123:05:251
134491410,5ptp4l5364-21/usr/sbin/munin20:35:313
134491410,5ptp4l20853-21python23:25:230
134491410,5ptp4l14088-21ntp_states00:20:261
134491410,5ptp4l0-21swapper/319:30:173
134491410,5ptp4l0-21swapper/223:20:142
134491410,5ptp4l0-21swapper/223:20:142
134491410,5ptp4l0-21swapper/122:05:171
134491410,5ptp4l0-21swapper/119:20:171
134491410,5ptp4l0-21swapper/023:45:140
134491410,5ptp4l0-21swapper/020:50:120
134491410,5ptp4l0-21swapper/020:45:140
134491410,4ptp4l4512-21meminfo00:00:221
134491410,4ptp4l30769-21apt-get20:20:131
134491410,4ptp4l26421-21apt-get23:40:113
134491410,4ptp4l0-21swapper/123:24:111
134491410,4ptp4l0-21swapper/123:24:111
134491410,4ptp4l0-21swapper/119:50:191
134491410,4ptp4l0-21swapper/022:53:320
134491410,4ptp4l0-21swapper/022:53:320
134491410,4ptp4l0-21swapper/021:30:190
134491410,4ptp4l0-21swapper/000:10:580
134491410,11ptp4l9-21ksoftirqd/019:25:590
134491410,11ptp4l9-21ksoftirqd/019:25:590
30783994035,3cyclictest33-21ksoftirqd/223:20:002
30783994035,3cyclictest33-21ksoftirqd/220:02:152
3078399400,11cyclictest6628-21tail19:25:262
3078399400,11cyclictest6628-21tail19:25:262
30781994035,3cyclictest9-21ksoftirqd/020:24:590
30781994025,4cyclictest9-21ksoftirqd/021:20:240
134491400,6ptp4l0-21swapper/319:06:423
134491400,5ptp4l0-21swapper/322:55:143
134491400,5ptp4l0-21swapper/321:00:203
134491400,5ptp4l0-21swapper/221:58:552
134491400,5ptp4l0-21swapper/200:15:222
134491400,5ptp4l0-21swapper/122:55:271
134491400,5ptp4l0-21swapper/121:10:191
134491400,4ptp4l9171-21ntp_states21:50:223
134491400,4ptp4l28472-21apt-get23:45:001
134491400,4ptp4l27102-21memory20:10:221
134491400,4ptp4l25054-21meminfo23:35:201
134491400,4ptp4l24698-21irqstats20:05:180
134491400,4ptp4l15110-21df23:15:160
134491400,4ptp4l0-21swapper/320:01:463
134491400,4ptp4l0-21swapper/221:23:282
134491400,4ptp4l0-21swapper/120:50:201
134491400,4ptp4l0-21swapper/022:15:050
134491400,4ptp4l0-21swapper/021:15:260
134491400,3ptp4l6264-21iostat_ios22:55:200
134491400,3ptp4l3509-21apt-get00:00:143
134491400,3ptp4l1301-21snmpd22:45:223
134491400,2ptp4l4029-21ls19:20:220
30784993934,3cyclictest41-21ksoftirqd/300:30:013
30783993934,3cyclictest33-21ksoftirqd/220:55:012
30783993934,3cyclictest33-21ksoftirqd/219:45:182
30783993932,4cyclictest33-21ksoftirqd/200:10:002
30783993919,9cyclictest33-21ksoftirqd/219:45:002
30781993934,3cyclictest9-21ksoftirqd/000:40:010
30781993924,3cyclictest9-21ksoftirqd/023:20:260
30781993924,3cyclictest9-21ksoftirqd/023:20:260
134491390,7ptp4l0-21swapper/219:52:482
134491390,5ptp4l0-21swapper/322:53:153
134491390,5ptp4l0-21swapper/322:53:143
134491390,5ptp4l0-21swapper/319:16:033
134491390,5ptp4l0-21swapper/122:30:061
134491390,5ptp4l0-21swapper/121:10:001
134491390,5ptp4l0-21swapper/021:25:150
134491390,4ptp4l0-21swapper/322:40:123
134491390,4ptp4l0-21swapper/321:55:283
134491390,4ptp4l0-21swapper/321:25:183
134491390,4ptp4l0-21swapper/321:05:563
134491390,4ptp4l0-21swapper/320:40:153
134491390,4ptp4l0-21swapper/319:45:193
134491390,4ptp4l0-21swapper/319:10:013
134491390,4ptp4l0-21swapper/300:30:173
134491390,4ptp4l0-21swapper/300:23:543
134491390,4ptp4l0-21swapper/222:35:192
134491390,4ptp4l0-21swapper/220:13:092
134491390,4ptp4l0-21swapper/219:20:232
134491390,4ptp4l0-21swapper/121:45:101
134491390,4ptp4l0-21swapper/119:40:271
134491390,4ptp4l0-21swapper/023:35:250
134491390,4ptp4l0-21swapper/023:00:160
134491390,4ptp4l0-21swapper/019:55:270
134491390,4ptp4l0-21swapper/019:50:160
134491390,3ptp4l24606-21hddtemp_smartct22:25:170
134491390,3ptp4l13553-21meminfo23:10:211
30783993833,3cyclictest33-21ksoftirqd/221:11:162
3078399381,3cyclictest121rcu_preempt20:40:162
3078399380,2cyclictest121rcu_preempt00:20:262
3078199381,3cyclictest121rcu_preempt23:50:290
134491380,4ptp4l41-21ksoftirqd/323:15:193
134491380,4ptp4l33-21ksoftirqd/221:47:312
134491380,4ptp4l11780-21kworker/3:019:25:283
134491380,4ptp4l11780-21kworker/3:019:25:283
134491380,4ptp4l0-21swapper/323:55:453
134491380,4ptp4l0-21swapper/323:30:253
134491380,4ptp4l0-21swapper/323:27:593
134491380,4ptp4l0-21swapper/323:21:143
134491380,4ptp4l0-21swapper/323:21:143
134491380,4ptp4l0-21swapper/323:10:273
134491380,4ptp4l0-21swapper/322:37:113
134491380,4ptp4l0-21swapper/322:22:593
134491380,4ptp4l0-21swapper/322:22:583
134491380,4ptp4l0-21swapper/322:12:193
134491380,4ptp4l0-21swapper/322:06:183
134491380,4ptp4l0-21swapper/321:45:163
134491380,4ptp4l0-21swapper/321:35:253
134491380,4ptp4l0-21swapper/321:30:063
134491380,4ptp4l0-21swapper/320:55:453
134491380,4ptp4l0-21swapper/320:45:143
134491380,4ptp4l0-21swapper/320:31:073
134491380,4ptp4l0-21swapper/320:17:143
134491380,4ptp4l0-21swapper/320:06:493
134491380,4ptp4l0-21swapper/319:42:183
134491380,4ptp4l0-21swapper/319:35:033
134491380,4ptp4l0-21swapper/319:20:383
134491380,4ptp4l0-21swapper/300:37:423
134491380,4ptp4l0-21swapper/300:05:273
134491380,4ptp4l0-21swapper/223:31:212
134491380,4ptp4l0-21swapper/223:05:292
134491380,4ptp4l0-21swapper/223:01:182
134491380,4ptp4l0-21swapper/222:54:412
134491380,4ptp4l0-21swapper/222:54:412
134491380,4ptp4l0-21swapper/222:30:252
134491380,4ptp4l0-21swapper/222:12:332
134491380,4ptp4l0-21swapper/220:06:432
134491380,4ptp4l0-21swapper/219:55:172
134491380,4ptp4l0-21swapper/219:37:022
134491380,4ptp4l0-21swapper/219:13:542
134491380,4ptp4l0-21swapper/200:27:262
134491380,4ptp4l0-21swapper/200:13:322
134491380,4ptp4l0-21swapper/123:31:111
134491380,4ptp4l0-21swapper/119:15:181
134491380,4ptp4l0-21swapper/119:10:151
134491380,4ptp4l0-21swapper/100:30:021
134491380,4ptp4l0-21swapper/100:10:181
134491380,4ptp4l0-21swapper/022:04:590
134491380,4ptp4l0-21swapper/020:56:040
134491380,3ptp4l8468-21cpuspeed_turbos00:10:153
134491380,3ptp4l1690-21ls20:25:233
30783993732,3cyclictest33-21ksoftirqd/223:50:342
134491370,4ptp4l3593-21ls00:00:142
134491370,4ptp4l0-21swapper/321:41:003
134491370,4ptp4l0-21swapper/321:20:133
134491370,4ptp4l0-21swapper/300:16:203
134491370,4ptp4l0-21swapper/223:45:422
134491370,4ptp4l0-21swapper/223:38:202
134491370,4ptp4l0-21swapper/223:14:202
134491370,4ptp4l0-21swapper/222:58:242
134491370,4ptp4l0-21swapper/222:48:012
134491370,4ptp4l0-21swapper/222:41:152
134491370,4ptp4l0-21swapper/222:26:352
134491370,4ptp4l0-21swapper/222:23:322
134491370,4ptp4l0-21swapper/222:23:322
134491370,4ptp4l0-21swapper/221:40:372
134491370,4ptp4l0-21swapper/221:03:062
134491370,4ptp4l0-21swapper/220:55:262
134491370,4ptp4l0-21swapper/220:35:172
134491370,4ptp4l0-21swapper/219:33:262
134491370,4ptp4l0-21swapper/200:35:222
134491370,4ptp4l0-21swapper/023:55:160
134491370,3ptp4l0-21swapper/223:26:312
134491370,3ptp4l0-21swapper/221:30:472
134491370,3ptp4l0-21swapper/220:31:042
30784993631,3cyclictest41-21ksoftirqd/320:00:003
134491360,3ptp4l0-21swapper/221:36:342
134491360,3ptp4l0-21swapper/220:15:162
134491340,3ptp4l0-21swapper/221:06:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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