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2025-11-27 - 07:32
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Thu Nov 27, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2372821610,5sleep32053199cyclictest20:30:003
2847191620,5ptp4l0-21swapper/319:06:593
2847191610,4ptp4l0-21swapper/223:47:472
2847191600,5ptp4l0-21swapper/219:08:112
2847191600,3ptp4l19192-21iostat_ios23:50:210
2847191590,4ptp4l0-21swapper/019:34:240
2847191590,4ptp4l0-21swapper/019:26:240
2847191590,4ptp4l0-21swapper/019:20:230
2847191580,3ptp4l0-21swapper/023:35:210
2847191570,3ptp4l0-21swapper/220:29:522
2847191570,3ptp4l0-21swapper/021:05:220
2847191570,3ptp4l0-21swapper/019:55:180
2847191560,3ptp4l0-21swapper/323:31:383
2847191550,4ptp4l0-21swapper/023:42:000
2847191550,3ptp4l0-21swapper/021:39:140
2847191540,4ptp4l0-21swapper/322:45:113
2847191540,4ptp4l0-21swapper/119:18:521
2847191540,3ptp4l0-21swapper/123:00:131
2847191540,3ptp4l0-21swapper/023:10:190
2847191540,3ptp4l0-21swapper/020:50:440
2847191530,4ptp4l0-21swapper/322:08:213
2847191530,4ptp4l0-21swapper/223:54:052
2847191530,4ptp4l0-21swapper/100:17:351
2847191530,4ptp4l0-21swapper/019:54:120
2847191530,4ptp4l0-21swapper/019:54:120
2847191530,4ptp4l0-21swapper/019:37:060
2847191530,3ptp4l0-21swapper/020:30:100
2847191520,4ptp4l0-21swapper/321:16:393
2847191520,4ptp4l0-21swapper/300:06:283
2847191520,4ptp4l0-21swapper/121:53:001
2847191520,4ptp4l0-21swapper/121:26:431
2847191520,4ptp4l0-21swapper/120:24:361
2847191520,4ptp4l0-21swapper/120:24:361
2847191520,4ptp4l0-21swapper/120:15:241
2847191520,4ptp4l0-21swapper/120:02:011
2847191520,4ptp4l0-21swapper/119:21:591
2847191520,3ptp4l0-21swapper/123:07:341
2847191520,3ptp4l0-21swapper/022:20:290
2847191520,3ptp4l0-21swapper/022:20:290
2847191510,8ptp4l101ktimersoftd/022:35:170
2847191510,4ptp4l0-21swapper/321:45:303
2847191510,4ptp4l0-21swapper/321:21:273
2847191510,4ptp4l0-21swapper/222:25:262
2847191510,4ptp4l0-21swapper/121:49:201
2847191510,4ptp4l0-21swapper/120:05:131
2847191510,4ptp4l0-21swapper/100:34:511
2847191510,4ptp4l0-21swapper/020:17:550
2847191510,3ptp4l0-21swapper/222:48:372
2847191510,3ptp4l0-21swapper/121:34:091
2847191510,3ptp4l0-21swapper/020:20:270
2847191510,3ptp4l0-21swapper/020:20:270
2847191500,8ptp4l0-21swapper/021:44:190
2847191500,4ptp4l0-21swapper/200:37:262
2847191500,4ptp4l0-21swapper/200:29:522
2847191500,4ptp4l0-21swapper/122:00:191
2847191500,4ptp4l0-21swapper/121:06:191
2847191500,4ptp4l0-21swapper/120:45:451
2847191500,4ptp4l0-21swapper/119:33:161
2847191500,4ptp4l0-21swapper/022:41:110
2847191500,4ptp4l0-21swapper/020:49:400
2847191500,3ptp4l0-21swapper/322:30:303
2847191500,3ptp4l0-21swapper/123:19:371
2847191490,4ptp4l0-21swapper/120:38:211
2847191490,4ptp4l0-21swapper/119:58:031
2847191490,4ptp4l0-21swapper/021:26:280
2847191490,4ptp4l0-21swapper/000:12:480
2847191490,3ptp4l0-21swapper/123:56:341
2847191490,3ptp4l0-21swapper/119:50:141
2847191490,3ptp4l0-21swapper/119:50:141
2847191490,3ptp4l0-21swapper/119:42:091
2847191490,3ptp4l0-21swapper/020:57:170
2847191490,3ptp4l0-21swapper/000:25:150
2847191490,3ptp4l0-21swapper/000:05:150
2847191480,3ptp4l0-21swapper/323:55:133
2847191480,3ptp4l0-21swapper/321:42:423
2847191470,4ptp4l0-21swapper/020:43:120
2847191470,3ptp4l0-21swapper/300:00:173
2847191470,3ptp4l0-21swapper/023:33:450
2847191470,3ptp4l0-21swapper/023:23:200
2847191470,11ptp4l0-21swapper/022:46:350
2847191460,4ptp4l0-21swapper/300:15:053
2847191460,4ptp4l0-21swapper/221:24:002
2847191460,4ptp4l0-21swapper/122:56:071
2847191450,9ptp4l0-21swapper/222:11:342
2847191450,9ptp4l0-21swapper/219:28:372
2847191450,5ptp4l0-21swapper/021:49:360
2847191450,4ptp4l20204-21apt-get21:35:122
2847191450,4ptp4l0-21swapper/122:09:161
2847191450,4ptp4l0-21swapper/119:14:191
2053199451,43cyclictest0-21swapper/322:43:203
2847191440,9ptp4l0-21swapper/020:10:390
2847191440,4ptp4l6451-21apt-get22:15:113
2847191440,4ptp4l18914-21df_inode20:15:162
2847191440,3ptp4l0-21swapper/121:14:021
2847191430,9ptp4l0-21swapper/320:30:433
2847191430,9ptp4l0-21swapper/223:31:152
2847191430,9ptp4l0-21swapper/223:16:292
2847191430,9ptp4l0-21swapper/222:04:522
2847191430,9ptp4l0-21swapper/221:12:442
2847191430,9ptp4l0-21swapper/220:06:552
2847191430,9ptp4l0-21swapper/219:42:552
2847191430,5ptp4l0-21swapper/123:10:181
2847191430,4ptp4l4707-21apt-get19:45:111
2847191430,4ptp4l26121-21ntp_states22:55:230
2847191430,3ptp4l0-21swapper/221:25:112
2847191430,3ptp4l0-21swapper/022:05:140
2847191430,3ptp4l0-21swapper/020:08:370
2847191430,10ptp4l0-21swapper/221:05:072
2847191430,10ptp4l0-21swapper/122:26:251
2052999431,2cyclictest2849691phc2sys20:30:111
2847191420,9ptp4l0-21swapper/223:24:292
2847191420,9ptp4l0-21swapper/000:16:260
2847191420,6ptp4l0-21swapper/021:03:560
2847191420,5ptp4l0-21swapper/222:15:112
2847191420,5ptp4l0-21swapper/121:35:011
2847191420,5ptp4l0-21swapper/121:20:151
2847191420,5ptp4l0-21swapper/022:00:290
2847191420,4ptp4l29915-21hddtemp_smartct21:55:160
2847191420,4ptp4l29201-21users19:25:271
2847191420,4ptp4l20920-21apt-get23:55:122
2847191420,4ptp4l13721-21df_inode22:30:170
2847191420,4ptp4l11436-21df23:35:132
2847191420,4ptp4l0-21swapper/322:10:293
2847191420,4ptp4l0-21swapper/222:51:472
2847191420,4ptp4l0-21swapper/200:21:062
2847191420,4ptp4l0-21swapper/021:15:390
2847191420,4ptp4l0-21swapper/000:00:120
2847191420,3ptp4l17679-21apt-get21:30:113
2847191420,3ptp4l15373-21apt-get21:25:123
2847191420,3ptp4l0-21swapper/300:33:243
2847191420,3ptp4l0-21swapper/123:41:281
2847191410,6ptp4l6895-21/usr/sbin/munin22:15:151
2847191410,6ptp4l0-21swapper/300:20:123
2847191410,5ptp4l13063-21apt-get21:20:110
2847191410,5ptp4l0-21swapper/323:35:143
2847191410,5ptp4l0-21swapper/322:35:413
2847191410,5ptp4l0-21swapper/222:35:232
2847191410,4ptp4l8147-21ntp_states19:50:232
2847191410,4ptp4l8147-21ntp_states19:50:232
2847191410,4ptp4l30275-21ntp_states20:45:242
2847191410,4ptp4l25564-21iostat22:55:172
2847191410,4ptp4l2545-21iostat_ios23:15:170
2847191410,4ptp4l16934-21irqstats23:45:180
2847191410,4ptp4l0-21swapper/223:06:092
2847191410,4ptp4l0-21swapper/222:40:152
2847191410,4ptp4l0-21swapper/222:31:352
2847191410,4ptp4l0-21swapper/222:21:412
2847191410,4ptp4l0-21swapper/222:21:412
2847191410,4ptp4l0-21swapper/221:41:292
2847191410,4ptp4l0-21swapper/219:30:032
2847191410,4ptp4l0-21swapper/200:30:412
2847191410,4ptp4l0-21swapper/123:35:201
2847191410,4ptp4l0-21swapper/122:39:011
2847191410,4ptp4l0-21swapper/023:58:100
2847191410,4ptp4l0-21swapper/022:27:160
2847191410,4ptp4l0-21swapper/021:30:350
2847191410,3ptp4l8785-21apt-get22:20:123
2847191410,3ptp4l8785-21apt-get22:20:123
2847191410,3ptp4l8046-21ls23:25:280
2847191410,3ptp4l3796-21apt-get21:00:131
2847191410,3ptp4l29637-21apt-get23:05:100
2847191410,3ptp4l29605-21apt-get19:30:033
2847191410,3ptp4l28123-21meminfo21:50:190
2847191410,3ptp4l27894-21iostat23:00:170
2847191410,3ptp4l2398-21apt-get19:40:110
2847191410,3ptp4l0-21swapper/320:07:273
2052999419,7cyclictest25-21ksoftirqd/121:20:001
2052999416,3cyclictest25-21ksoftirqd/119:35:141
20529994135,2cyclictest25-21ksoftirqd/122:45:001
20529994112,5cyclictest25-21ksoftirqd/123:33:471
2847191400,5ptp4l20438-21df_abs21:35:133
2847191400,5ptp4l11691-21ps22:25:193
2847191400,5ptp4l0-21swapper/221:55:132
2847191400,5ptp4l0-21swapper/100:35:141
2847191400,5ptp4l0-21swapper/019:45:140
2847191400,4ptp4l14099-21forks23:40:133
2847191400,4ptp4l0-21swapper/323:52:213
2847191400,4ptp4l0-21swapper/323:09:443
2847191400,4ptp4l0-21swapper/322:55:293
2847191400,4ptp4l0-21swapper/320:54:123
2847191400,4ptp4l0-21swapper/320:15:183
2847191400,4ptp4l0-21swapper/319:17:033
2847191400,4ptp4l0-21swapper/300:25:213
2847191400,4ptp4l0-21swapper/223:44:342
2847191400,4ptp4l0-21swapper/223:25:252
2847191400,4ptp4l0-21swapper/223:10:122
2847191400,4ptp4l0-21swapper/223:04:552
2847191400,4ptp4l0-21swapper/222:05:472
2847191400,4ptp4l0-21swapper/221:45:142
2847191400,4ptp4l0-21swapper/221:30:212
2847191400,4ptp4l0-21swapper/221:15:142
2847191400,4ptp4l0-21swapper/220:43:232
2847191400,4ptp4l0-21swapper/220:32:212
2847191400,4ptp4l0-21swapper/220:22:132
2847191400,4ptp4l0-21swapper/220:22:132
2847191400,4ptp4l0-21swapper/220:14:332
2847191400,4ptp4l0-21swapper/220:00:542
2847191400,4ptp4l0-21swapper/219:55:292
2847191400,4ptp4l0-21swapper/219:47:192
2847191400,4ptp4l0-21swapper/219:35:072
2847191400,4ptp4l0-21swapper/219:23:532
2847191400,4ptp4l0-21swapper/219:10:072
2847191400,4ptp4l0-21swapper/200:10:572
2847191400,4ptp4l0-21swapper/123:50:231
2847191400,4ptp4l0-21swapper/123:48:281
2847191400,4ptp4l0-21swapper/123:25:141
2847191400,4ptp4l0-21swapper/123:23:421
2847191400,4ptp4l0-21swapper/122:20:191
2847191400,4ptp4l0-21swapper/122:20:191
2847191400,4ptp4l0-21swapper/122:10:151
2847191400,4ptp4l0-21swapper/121:55:031
2847191400,4ptp4l0-21swapper/121:40:431
2847191400,4ptp4l0-21swapper/120:40:131
2847191400,4ptp4l0-21swapper/120:26:051
2847191400,4ptp4l0-21swapper/022:51:390
2847191400,4ptp4l0-21swapper/022:17:140
2847191400,4ptp4l0-21swapper/020:00:170
2847191400,4ptp4l0-21swapper/000:21:090
2847191400,3ptp4l23730-21irqstats19:15:190
2847191400,3ptp4l16868-21iostat_ios20:10:191
2847191390,5ptp4l0-21swapper/320:35:553
2847191390,5ptp4l0-21swapper/000:30:120
2847191390,4ptp4l0-21swapper/323:47:453
2847191390,4ptp4l0-21swapper/323:20:183
2847191390,4ptp4l0-21swapper/323:16:043
2847191390,4ptp4l0-21swapper/323:10:143
2847191390,4ptp4l0-21swapper/322:50:163
2847191390,4ptp4l0-21swapper/321:12:133
2847191390,4ptp4l0-21swapper/321:05:113
2847191390,4ptp4l0-21swapper/321:03:173
2847191390,4ptp4l0-21swapper/320:55:263
2847191390,4ptp4l0-21swapper/320:46:533
2847191390,4ptp4l0-21swapper/320:40:193
2847191390,4ptp4l0-21swapper/320:13:453
2847191390,4ptp4l0-21swapper/320:00:553
2847191390,4ptp4l0-21swapper/319:50:213
2847191390,4ptp4l0-21swapper/319:50:213
2847191390,4ptp4l0-21swapper/300:37:173
2847191390,4ptp4l0-21swapper/221:50:182
2847191390,4ptp4l0-21swapper/221:00:212
2847191390,4ptp4l0-21swapper/220:56:552
2847191390,4ptp4l0-21swapper/220:37:422
2847191390,4ptp4l0-21swapper/219:15:102
2847191390,4ptp4l0-21swapper/122:51:441
2847191390,4ptp4l0-21swapper/122:47:311
2847191390,4ptp4l0-21swapper/122:34:431
2847191390,4ptp4l0-21swapper/120:55:161
2847191390,4ptp4l0-21swapper/100:25:061
2847191390,4ptp4l0-21swapper/100:20:201
2847191390,4ptp4l0-21swapper/100:04:061
2847191390,4ptp4l0-21swapper/022:10:130
2847191390,4ptp4l0-21swapper/021:10:140
2847191390,4ptp4l0-21swapper/020:27:030
2847191390,3ptp4l0-21swapper/321:58:313
2847191390,3ptp4l0-21swapper/120:50:051
2847191390,3ptp4l0-21swapper/020:35:430
2847191390,3ptp4l0-21swapper/019:10:160
2847191380,4ptp4l25876-21sed00:05:142
2847191380,4ptp4l0-21swapper/323:27:543
2847191380,4ptp4l0-21swapper/321:50:263
2847191380,4ptp4l0-21swapper/320:20:313
2847191380,4ptp4l0-21swapper/320:20:313
2847191380,4ptp4l0-21swapper/319:55:173
2847191380,4ptp4l0-21swapper/319:46:353
2847191380,4ptp4l0-21swapper/319:40:033
2847191380,4ptp4l0-21swapper/319:36:213
2847191380,4ptp4l0-21swapper/300:13:343
2847191380,4ptp4l0-21swapper/200:16:242
2847191380,4ptp4l0-21swapper/100:11:171
2847191380,3ptp4l0-21swapper/322:00:283
2847191380,3ptp4l0-21swapper/319:27:043
2847191380,3ptp4l0-21swapper/220:50:022
2847191380,3ptp4l0-21swapper/200:00:292
2847191380,3ptp4l0-21swapper/100:06:441
2847191370,4ptp4l0-21swapper/323:02:023
2847191370,4ptp4l0-21swapper/000:36:520
2847191370,3ptp4l0-21swapper/319:13:213
2847191360,3ptp4l0-21swapper/319:23:363
2849691253,14phc2sys19493-21mailstats19:05:231
196912253,13sleep019856-21/usr/sbin/munin19:05:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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