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2025-10-25 - 12:27
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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 Oct 25, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191730,3ptp4l0-21swapper/220:05:262
17445996727,5cyclictest41-21ksoftirqd/300:30:293
2847191640,20ptp4l0-21swapper/121:45:231
2847191630,5ptp4l0-21swapper/019:05:250
269022620,2sleep126907-21irqrtprio22:55:191
269022620,2sleep126907-21irqrtprio22:55:191
2847191610,3ptp4l3350-21apt-get00:23:422
2847191600,5ptp4l0-21swapper/023:35:220
2847191590,4ptp4l28646-21ntp_states21:50:242
2847191590,4ptp4l0-21swapper/120:18:231
2847191580,4ptp4l0-21swapper/322:00:283
2847191580,3ptp4l0-21swapper/223:25:122
17445995826,7cyclictest41-21ksoftirqd/321:44:593
17445995726,3cyclictest41-21ksoftirqd/323:22:083
17445995617,3cyclictest41-21ksoftirqd/300:15:273
2847191550,4ptp4l0-21swapper/121:25:181
2847191550,3ptp4l0-21swapper/222:20:202
17445995522,7cyclictest41-21ksoftirqd/319:18:003
17445995522,4cyclictest41-21ksoftirqd/320:26:113
2847191540,4ptp4l0-21swapper/100:05:081
2847191540,3ptp4l0-21swapper/222:08:392
17445995426,4cyclictest41-21ksoftirqd/322:40:513
2847191530,4ptp4l0-21swapper/320:49:063
2847191530,4ptp4l0-21swapper/200:25:012
2847191530,4ptp4l0-21swapper/200:14:052
2847191530,3ptp4l0-21swapper/219:50:172
2847191530,14ptp4l24477-21kworker/u8:222:45:002
2847191530,11ptp4l15094-21apt-get19:05:121
17445995325,3cyclictest41-21ksoftirqd/323:34:073
17445995323,4cyclictest41-21ksoftirqd/319:33:223
17445995323,3cyclictest41-21ksoftirqd/300:22:333
17445995321,7cyclictest41-21ksoftirqd/321:37:573
17445995320,8cyclictest41-21ksoftirqd/321:24:213
106992530,5sleep00-21swapper/022:20:270
2847191520,4ptp4l0-21swapper/222:37:572
2847191520,4ptp4l0-21swapper/220:51:212
2847191520,4ptp4l0-21swapper/220:30:512
2847191520,4ptp4l0-21swapper/220:04:042
2847191520,4ptp4l0-21swapper/019:39:060
17445995225,3cyclictest41-21ksoftirqd/321:12:293
17445995225,3cyclictest41-21ksoftirqd/321:12:293
17445995224,3cyclictest41-21ksoftirqd/321:15:183
17445995223,4cyclictest41-21ksoftirqd/300:26:193
17445995218,7cyclictest41-21ksoftirqd/323:45:283
2847191510,4ptp4l0-21swapper/319:23:453
2847191510,4ptp4l0-21swapper/223:42:522
2847191510,4ptp4l0-21swapper/221:35:402
2847191510,4ptp4l0-21swapper/121:50:571
17445995121,4cyclictest41-21ksoftirqd/322:11:233
17445995120,8cyclictest41-21ksoftirqd/323:08:033
17445995120,3cyclictest41-21ksoftirqd/322:45:573
17445995119,4cyclictest41-21ksoftirqd/322:35:013
2847191500,4ptp4l0-21swapper/223:59:342
2847191500,4ptp4l0-21swapper/222:11:272
2847191500,3ptp4l0-21swapper/322:52:523
2847191500,3ptp4l0-21swapper/220:38:582
2847191500,3ptp4l0-21swapper/220:24:002
17445995023,3cyclictest41-21ksoftirqd/319:45:033
17445995022,4cyclictest41-21ksoftirqd/322:27:553
17445995022,3cyclictest41-21ksoftirqd/323:12:013
2847191490,4ptp4l0-21swapper/223:45:292
2847191490,4ptp4l0-21swapper/221:13:482
2847191490,4ptp4l0-21swapper/221:13:482
2847191490,4ptp4l0-21swapper/221:03:312
2847191490,4ptp4l0-21swapper/120:45:531
2847191490,3ptp4l0-21swapper/222:32:352
2847191490,2ptp4l0-21swapper/220:58:082
2847191490,11ptp4l0-21swapper/222:00:202
17445994923,3cyclictest41-21ksoftirqd/323:17:063
17445994922,4cyclictest41-21ksoftirqd/323:40:213
17445994919,7cyclictest41-21ksoftirqd/319:40:193
17445994918,4cyclictest41-21ksoftirqd/300:35:243
17445994917,3cyclictest41-21ksoftirqd/322:55:283
17445994917,3cyclictest41-21ksoftirqd/322:55:283
2847191480,3ptp4l0-21swapper/223:10:282
2847191480,3ptp4l0-21swapper/121:57:531
17445994818,7cyclictest41-21ksoftirqd/320:10:153
17445994818,7cyclictest41-21ksoftirqd/320:10:153
17445994817,4cyclictest41-21ksoftirqd/320:35:003
2847191470,4ptp4l0-21swapper/219:23:582
2847191470,4ptp4l0-21swapper/200:30:082
2847191470,3ptp4l0-21swapper/223:30:292
2847191470,10ptp4l0-21swapper/120:40:311
17445994724,6cyclictest41-21ksoftirqd/300:10:003
17445994721,3cyclictest41-21ksoftirqd/321:08:083
17445994720,7cyclictest41-21ksoftirqd/322:20:233
17445994720,3cyclictest41-21ksoftirqd/322:35:283
17445994717,4cyclictest41-21ksoftirqd/321:45:233
1744299472,44cyclictest0-21swapper/119:51:591
2847191460,9ptp4l0-21swapper/019:45:450
2847191460,7ptp4l0-21swapper/223:09:102
2847191460,5ptp4l22313-21apt-get20:30:121
2847191460,4ptp4l0-21swapper/223:21:012
2847191460,3ptp4l0-21swapper/000:32:310
2847191460,11ptp4l0-21swapper/221:45:202
1744599462,7cyclictest0-21swapper/320:20:183
17445994618,6cyclictest41-21ksoftirqd/319:27:223
17445994618,4cyclictest41-21ksoftirqd/323:55:243
17445994615,3cyclictest41-21ksoftirqd/319:10:303
17445994612,4cyclictest41-21ksoftirqd/320:05:233
2847191450,5ptp4l2782-21ls20:55:200
2847191450,5ptp4l0-21swapper/321:04:123
2847191450,4ptp4l0-21swapper/200:39:212
2847191450,3ptp4l0-21swapper/320:40:333
2847191450,3ptp4l0-21swapper/223:54:452
17445994517,7cyclictest41-21ksoftirqd/320:40:003
17445994516,3cyclictest41-21ksoftirqd/321:30:013
17445994516,3cyclictest41-21ksoftirqd/320:50:163
17445994515,7cyclictest41-21ksoftirqd/323:50:193
1744299452,41cyclictest0-21swapper/123:20:501
2847191440,9ptp4l0-21swapper/023:40:400
2847191440,4ptp4l0-21swapper/300:04:303
2847191440,4ptp4l0-21swapper/221:40:082
2847191440,3ptp4l1342-21apt-get19:45:122
2847191440,12ptp4l0-21swapper/023:20:340
2847191440,10ptp4l0-21swapper/223:02:482
17445994417,3cyclictest41-21ksoftirqd/321:30:273
17445994416,7cyclictest41-21ksoftirqd/323:35:233
17445994415,7cyclictest41-21ksoftirqd/321:00:003
41798430,4rtkit-daemon0-21swapper/323:29:423
2847191430,5ptp4l4995-21users23:15:290
2847191430,5ptp4l11629-21memory20:05:200
2847191430,5ptp4l0-21swapper/322:15:143
2847191430,5ptp4l0-21swapper/120:55:021
2847191430,5ptp4l0-21swapper/020:25:120
2847191430,4ptp4l6341-21df_inode19:55:120
2847191430,4ptp4l4088-21apt-get21:00:121
2847191430,4ptp4l15081-21memory22:30:221
2847191430,10ptp4l0-21swapper/220:26:082
2847191430,10ptp4l0-21swapper/219:37:522
17445994317,9cyclictest41-21ksoftirqd/322:05:233
2847191420,8ptp4l0-21swapper/020:03:480
2847191420,6ptp4l9-21ksoftirqd/021:10:330
2847191420,6ptp4l9-21ksoftirqd/021:10:330
2847191420,5ptp4l4371-21fw_packets00:25:201
2847191420,5ptp4l13931-21iostat_ios21:20:200
2847191420,5ptp4l0-21swapper/122:20:141
2847191420,5ptp4l0-21swapper/119:25:161
2847191420,5ptp4l0-21swapper/023:00:210
2847191420,5ptp4l0-21swapper/021:00:120
2847191420,5ptp4l0-21swapper/020:45:160
2847191420,5ptp4l0-21swapper/020:30:140
2847191420,5ptp4l0-21swapper/019:20:180
2847191420,5ptp4l0-21swapper/000:21:100
2847191420,4ptp4l9840-21ntp_states21:10:251
2847191420,4ptp4l9840-21ntp_states21:10:251
2847191420,4ptp4l29640-21ntp_states23:00:243
2847191420,4ptp4l21904-21apt-get23:55:131
2847191420,4ptp4l16193-21apt-get22:35:020
2847191420,4ptp4l0-21swapper/020:20:080
2847191420,3ptp4l2873-21ls00:20:261
2847191420,2ptp4l0-21swapper/219:27:122
1744599428,8cyclictest41-21ksoftirqd/320:03:203
17445994214,8cyclictest41-21ksoftirqd/319:50:153
17445994212,7cyclictest41-21ksoftirqd/300:10:173
1744299422,39cyclictest0-21swapper/123:36:001
1744299421,2cyclictest0-21swapper/123:27:001
1744299420,3cyclictest19391-21kworker/1:023:51:091
2847191410,6ptp4l19195-21df_abs22:40:160
2847191410,5ptp4l0-21swapper/121:35:131
2847191410,5ptp4l0-21swapper/022:19:500
2847191410,5ptp4l0-21swapper/020:10:560
2847191410,5ptp4l0-21swapper/020:10:560
2847191410,5ptp4l0-21swapper/019:40:260
2847191410,5ptp4l0-21swapper/000:15:230
2847191410,4ptp4l7149-21ntp_states19:55:202
2847191410,4ptp4l27816-21irqstats20:40:220
2847191410,4ptp4l21658-21df_inode22:45:140
2847191410,4ptp4l20967-21ntp_states19:15:262
2847191410,4ptp4l17687-21df19:10:150
2847191410,4ptp4l12626-21grep21:15:302
2847191410,4ptp4l0-21swapper/223:15:132
2847191410,4ptp4l0-21swapper/120:11:381
2847191410,4ptp4l0-21swapper/120:11:381
2847191410,4ptp4l0-21swapper/100:15:211
2847191410,4ptp4l0-21swapper/023:56:520
2847191410,4ptp4l0-21swapper/023:31:160
2847191410,4ptp4l0-21swapper/021:55:290
2847191410,4ptp4l0-21swapper/021:54:130
2847191410,4ptp4l0-21swapper/021:33:500
2847191410,4ptp4l0-21swapper/020:52:330
2847191410,4ptp4l0-21swapper/020:35:180
2847191410,4ptp4l0-21swapper/019:33:340
2847191410,4ptp4l0-21swapper/019:28:280
2847191410,4ptp4l0-21swapper/000:03:020
2847191410,3ptp4l6028-21apt-get19:55:103
2847191410,3ptp4l29478-21memory23:00:221
2847191400,5ptp4l0-21swapper/223:35:122
2847191400,5ptp4l0-21swapper/222:45:152
2847191400,5ptp4l0-21swapper/200:00:242
2847191400,5ptp4l0-21swapper/020:15:180
2847191400,5ptp4l0-21swapper/019:50:220
2847191400,5ptp4l0-21swapper/000:25:210
2847191400,5ptp4l0-21swapper/000:06:360
2847191400,4ptp4l22441-21sed19:20:141
2847191400,4ptp4l0-21swapper/321:50:273
2847191400,4ptp4l0-21swapper/320:18:023
2847191400,4ptp4l0-21swapper/222:56:182
2847191400,4ptp4l0-21swapper/222:56:182
2847191400,4ptp4l0-21swapper/221:20:222
2847191400,4ptp4l0-21swapper/221:08:362
2847191400,4ptp4l0-21swapper/220:11:392
2847191400,4ptp4l0-21swapper/220:11:392
2847191400,4ptp4l0-21swapper/200:17:342
2847191400,4ptp4l0-21swapper/122:45:171
2847191400,4ptp4l0-21swapper/122:25:221
2847191400,4ptp4l0-21swapper/121:44:421
2847191400,4ptp4l0-21swapper/121:09:061
2847191400,4ptp4l0-21swapper/120:35:281
2847191400,4ptp4l0-21swapper/120:20:261
2847191400,4ptp4l0-21swapper/120:08:131
2847191400,4ptp4l0-21swapper/119:44:181
2847191400,4ptp4l0-21swapper/119:10:181
2847191400,4ptp4l0-21swapper/100:34:321
2847191400,4ptp4l0-21swapper/022:34:210
2847191400,4ptp4l0-21swapper/022:27:080
2847191400,4ptp4l0-21swapper/022:11:220
2847191400,4ptp4l0-21swapper/021:45:250
2847191400,4ptp4l0-21swapper/021:40:170
2847191400,4ptp4l0-21swapper/021:25:270
2847191400,4ptp4l0-21swapper/019:16:090
2847191400,3ptp4l9631-21users23:25:250
2847191400,3ptp4l0-21swapper/321:55:093
1744599409,7cyclictest41-21ksoftirqd/319:36:523
2847191390,5ptp4l0-21swapper/122:10:231
2847191390,5ptp4l0-21swapper/122:00:141
2847191390,4ptp4l25222-21sensors_temp22:50:262
2847191390,4ptp4l0-21swapper/222:25:262
2847191390,4ptp4l0-21swapper/222:18:202
2847191390,4ptp4l0-21swapper/221:55:172
2847191390,4ptp4l0-21swapper/221:27:062
2847191390,4ptp4l0-21swapper/220:40:282
2847191390,4ptp4l0-21swapper/219:42:282
2847191390,4ptp4l0-21swapper/219:32:062
2847191390,4ptp4l0-21swapper/200:05:152
2847191390,4ptp4l0-21swapper/123:40:441
2847191390,4ptp4l0-21swapper/123:15:141
2847191390,4ptp4l0-21swapper/122:53:151
2847191390,4ptp4l0-21swapper/122:35:261
2847191390,4ptp4l0-21swapper/122:05:101
2847191390,4ptp4l0-21swapper/121:30:461
2847191390,4ptp4l0-21swapper/121:23:341
2847191390,4ptp4l0-21swapper/121:16:521
2847191390,4ptp4l0-21swapper/120:53:081
2847191390,4ptp4l0-21swapper/120:25:301
2847191390,4ptp4l0-21swapper/119:55:151
2847191390,4ptp4l0-21swapper/119:45:181
2847191390,4ptp4l0-21swapper/119:35:121
2847191390,4ptp4l0-21swapper/119:15:421
2847191390,4ptp4l0-21swapper/100:11:361
2847191390,4ptp4l0-21swapper/100:00:481
2847191390,4ptp4l0-21swapper/023:50:240
2847191390,4ptp4l0-21swapper/023:47:260
2847191390,4ptp4l0-21swapper/023:10:140
2847191390,4ptp4l0-21swapper/023:05:160
2847191390,4ptp4l0-21swapper/022:55:240
2847191390,4ptp4l0-21swapper/022:55:240
2847191390,4ptp4l0-21swapper/022:05:200
2847191390,4ptp4l0-21swapper/022:00:540
2847191390,4ptp4l0-21swapper/021:05:160
2847191390,4ptp4l0-21swapper/000:35:280
2847191390,4ptp4l0-21swapper/000:13:030
2847191390,3ptp4l9683-21ntp_states00:35:221
2847191390,3ptp4l31895-21irqstats23:05:211
2847191390,3ptp4l18251-21ls23:45:221
2847191390,3ptp4l0-21swapper/221:30:262
2847191390,3ptp4l0-21swapper/123:32:271
2847191390,3ptp4l0-21swapper/123:10:111
2847191390,3ptp4l0-21swapper/122:18:461
2847191390,3ptp4l0-21swapper/119:30:101
2847191390,3ptp4l0-21swapper/022:50:280
2847191380,4ptp4l0-21swapper/220:15:042
2847191380,4ptp4l0-21swapper/120:01:151
2847191380,4ptp4l0-21swapper/021:36:250
2847191380,4ptp4l0-21swapper/021:15:550
2847191380,3ptp4l0-21swapper/220:49:142
2847191380,3ptp4l0-21swapper/219:10:262
2847191380,3ptp4l0-21swapper/122:40:281
2849691234,4phc2sys0-21swapper/319:06:333
168242124,4sleep20-21swapper/219:05:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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