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2026-06-02 - 15:55
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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 Jun 02, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222792780,7sleep12351999cyclictest09:25:191
134491720,5ptp4l33-21ksoftirqd/210:25:232
134491690,4ptp4l15908-21meminfo11:30:202
134491660,5ptp4l12191-21/usr/sbin/munin12:30:300
23519996428,8cyclictest25-21ksoftirqd/110:05:011
23519996333,8cyclictest25-21ksoftirqd/110:20:281
23519996331,3cyclictest25-21ksoftirqd/109:45:001
134491630,4ptp4l0-21swapper/207:05:042
23519996232,8cyclictest25-21ksoftirqd/112:00:011
23519996231,6cyclictest25-21ksoftirqd/107:50:151
134491620,11ptp4l0-21swapper/211:19:582
23519996130,3cyclictest25-21ksoftirqd/112:25:241
23519996129,3cyclictest25-21ksoftirqd/108:45:211
23519996128,7cyclictest25-21ksoftirqd/111:20:001
134491610,5ptp4l0-21swapper/012:00:480
23519996033,3cyclictest25-21ksoftirqd/110:40:271
23519996027,4cyclictest25-21ksoftirqd/109:10:231
286642590,5sleep20-21swapper/208:30:152
23519995932,6cyclictest25-21ksoftirqd/112:10:131
23519995931,8cyclictest25-21ksoftirqd/107:28:271
23519995931,6cyclictest25-21ksoftirqd/109:35:021
23519995926,3cyclictest25-21ksoftirqd/110:30:001
23519995923,8cyclictest25-21ksoftirqd/111:10:181
134491590,3ptp4l0-21swapper/111:53:011
23519995828,6cyclictest25-21ksoftirqd/109:00:001
23519995827,6cyclictest25-21ksoftirqd/111:00:141
23519995827,3cyclictest25-21ksoftirqd/112:15:261
23519995826,3cyclictest25-21ksoftirqd/112:40:011
23519995824,6cyclictest25-21ksoftirqd/109:00:241
23519995824,6cyclictest25-21ksoftirqd/109:00:241
23519995821,7cyclictest25-21ksoftirqd/109:45:161
23519995730,3cyclictest25-21ksoftirqd/111:05:211
134491570,4ptp4l0-21swapper/211:00:212
23519995631,7cyclictest25-21ksoftirqd/111:45:271
23519995631,4cyclictest25-21ksoftirqd/109:20:111
23519995629,3cyclictest25-21ksoftirqd/110:18:491
23519995628,6cyclictest25-21ksoftirqd/110:55:001
23519995628,6cyclictest25-21ksoftirqd/110:55:001
23519995624,8cyclictest25-21ksoftirqd/108:35:251
23519995617,3cyclictest25-21ksoftirqd/109:50:201
23519995529,6cyclictest25-21ksoftirqd/110:05:141
23519995528,7cyclictest25-21ksoftirqd/108:30:281
23519995528,3cyclictest25-21ksoftirqd/112:20:261
23519995526,7cyclictest25-21ksoftirqd/112:00:151
23519995524,7cyclictest25-21ksoftirqd/107:40:281
23519995522,7cyclictest25-21ksoftirqd/108:15:161
134491550,4ptp4l0-21swapper/308:23:583
23519995434,2cyclictest25-21ksoftirqd/112:05:281
23519995429,6cyclictest25-21ksoftirqd/111:20:271
23519995429,6cyclictest25-21ksoftirqd/111:20:271
23519995423,8cyclictest25-21ksoftirqd/107:35:271
23519995423,3cyclictest25-21ksoftirqd/107:35:011
23519995420,4cyclictest25-21ksoftirqd/108:40:171
134491540,4ptp4l0-21swapper/209:35:002
23519995328,2cyclictest25-21ksoftirqd/108:23:241
23519995326,7cyclictest25-21ksoftirqd/110:10:141
23519995326,4cyclictest25-21ksoftirqd/110:45:271
23519995324,3cyclictest25-21ksoftirqd/111:40:191
23519995322,4cyclictest25-21ksoftirqd/110:55:541
134491530,4ptp4l0-21swapper/009:13:200
128572530,1sleep112860-21sort07:55:201
23519995228,3cyclictest25-21ksoftirqd/107:14:081
23519995221,4cyclictest25-21ksoftirqd/108:25:211
23519995218,8cyclictest25-21ksoftirqd/109:15:141
23519995214,7cyclictest25-21ksoftirqd/108:05:171
134491520,3ptp4l0-21swapper/009:00:230
134491520,3ptp4l0-21swapper/009:00:230
2351999516,6cyclictest25-21ksoftirqd/109:55:191
23519995119,6cyclictest25-21ksoftirqd/109:35:191
23519995117,7cyclictest25-21ksoftirqd/111:25:201
134491510,4ptp4l0-21swapper/310:59:193
134491510,3ptp4l0-21swapper/011:43:320
134491510,10ptp4l0-21swapper/211:25:252
2351999503,9cyclictest25-21ksoftirqd/110:30:251
23519995036,3cyclictest25-21ksoftirqd/110:40:011
23519995025,2cyclictest25-21ksoftirqd/108:54:491
134491500,4ptp4l0-21swapper/311:50:023
134491500,4ptp4l0-21swapper/010:53:530
134491500,4ptp4l0-21swapper/010:53:530
134491500,14ptp4l22125-21load07:05:180
2351999496,5cyclictest25-21ksoftirqd/107:45:241
2351999493,2cyclictest25-21ksoftirqd/109:05:151
134491490,4ptp4l0-21swapper/307:48:223
134491490,4ptp4l0-21swapper/008:52:380
134491490,4ptp4l0-21swapper/008:49:260
23519994813,8cyclictest25-21ksoftirqd/108:10:241
2351999481,2cyclictest121rcu_preempt11:30:191
134491480,4ptp4l0-21swapper/312:20:073
134491480,4ptp4l0-21swapper/309:17:183
134491480,4ptp4l0-21swapper/211:44:152
134491480,4ptp4l0-21swapper/010:56:290
134491480,4ptp4l0-21swapper/009:06:440
134491480,4ptp4l0-21swapper/007:32:080
2351999475,6cyclictest25-21ksoftirqd/107:20:251
2351999475,6cyclictest25-21ksoftirqd/107:20:251
134491470,4ptp4l2352199cyclictest08:27:463
134491470,4ptp4l0-21swapper/311:12:393
134491470,4ptp4l0-21swapper/310:45:533
134491470,4ptp4l0-21swapper/310:41:353
134491470,4ptp4l0-21swapper/309:08:163
134491470,4ptp4l0-21swapper/308:37:173
134491470,4ptp4l0-21swapper/210:52:312
134491470,4ptp4l0-21swapper/210:52:312
134491470,4ptp4l0-21swapper/207:42:262
134491470,4ptp4l0-21swapper/008:00:400
134491470,4ptp4l0-21swapper/007:45:390
2351999464,39cyclictest77850irq/145-enp4s0-12:30:181
134491460,4ptp4l0-21swapper/311:38:493
134491460,4ptp4l0-21swapper/308:11:023
134491460,4ptp4l0-21swapper/010:28:090
134491460,3ptp4l0-21swapper/312:08:373
134491460,3ptp4l0-21swapper/212:18:332
134491460,3ptp4l0-21swapper/108:04:461
2351999450,2cyclictest121rcu_preempt07:20:001
134491450,8ptp4l22614-21ssh07:05:251
134491450,5ptp4l0-21swapper/311:25:133
134491450,4ptp4l0-21swapper/308:43:423
134491450,4ptp4l0-21swapper/211:55:162
134491450,4ptp4l0-21swapper/207:52:272
134491450,4ptp4l0-21swapper/207:36:052
134491450,4ptp4l0-21swapper/008:34:170
134491450,3ptp4l0-21swapper/207:22:202
134491450,3ptp4l0-21swapper/207:22:202
134491450,10ptp4l0-21swapper/210:20:242
134491440,9ptp4l0-21swapper/011:52:240
134491440,4ptp4l0-21swapper/211:20:152
134491440,4ptp4l0-21swapper/211:20:152
134491440,3ptp4l0-21swapper/309:10:353
134491440,3ptp4l0-21swapper/209:20:262
134491440,3ptp4l0-21swapper/208:20:502
134491440,3ptp4l0-21swapper/207:46:022
134491440,3ptp4l0-21swapper/010:20:430
23518994338,3cyclictest9-21ksoftirqd/010:39:590
23518994337,3cyclictest9-21ksoftirqd/009:20:000
134491430,9ptp4l0-21swapper/210:36:392
134491430,9ptp4l0-21swapper/210:08:222
134491430,9ptp4l0-21swapper/209:56:142
134491430,5ptp4l2039-21irqstats12:10:190
134491430,4ptp4l0-21swapper/210:30:532
134491430,4ptp4l0-21swapper/007:29:300
134491430,3ptp4l212162chrt10:32:010
134491430,3ptp4l0-21swapper/208:42:202
134491430,2ptp4l0-21swapper/207:16:232
2351999423,6cyclictest25-21ksoftirqd/111:35:141
134491420,9ptp4l0-21swapper/211:54:582
134491420,5ptp4l30609-21apt-get08:35:132
134491420,5ptp4l0-21swapper/308:45:123
134491420,5ptp4l0-21swapper/207:25:182
134491420,4ptp4l13971-21memory12:35:210
134491420,4ptp4l0-21swapper/211:47:092
134491420,4ptp4l0-21swapper/210:58:582
134491420,4ptp4l0-21swapper/207:55:082
134491420,3ptp4l0-21swapper/308:34:233
134491410,9ptp4l0-21swapper/009:26:030
134491410,5ptp4l0-21swapper/307:55:283
134491410,5ptp4l0-21swapper/208:05:132
134491410,4ptp4l31596-21df_inode12:05:150
134491410,4ptp4l2318-21gnome-shell11:21:580
134491410,4ptp4l2318-21gnome-shell11:21:580
134491410,4ptp4l1829-21meminfo09:50:190
134491410,4ptp4l0-21swapper/308:58:493
134491410,4ptp4l0-21swapper/212:01:432
134491410,4ptp4l0-21swapper/208:00:272
134491410,4ptp4l0-21swapper/011:08:110
134491410,4ptp4l0-21swapper/009:57:540
134491410,4ptp4l0-21swapper/008:40:200
134491410,3ptp4l101ktimersoftd/008:24:510
134491410,3ptp4l0-21swapper/010:00:130
23518994035,3cyclictest9-21ksoftirqd/009:39:590
23518994035,3cyclictest9-21ksoftirqd/008:40:000
23518994035,3cyclictest9-21ksoftirqd/007:44:590
134491400,9ptp4l0-21swapper/210:01:432
134491400,8ptp4l0-21swapper/307:05:123
134491400,6ptp4l6194-21sed12:20:140
134491400,5ptp4l22465-21ntp_states09:25:233
134491400,5ptp4l0-21swapper/309:30:163
134491400,5ptp4l0-21swapper/309:20:113
134491400,5ptp4l0-21swapper/212:30:022
134491400,5ptp4l0-21swapper/210:15:212
134491400,5ptp4l0-21swapper/008:08:290
134491400,4ptp4l6182-21memory08:50:222
134491400,4ptp4l28157-21/usr/sbin/munin07:20:263
134491400,4ptp4l28157-21/usr/sbin/munin07:20:263
134491400,4ptp4l27889-21python10:45:270
134491400,4ptp4l0-21swapper/312:00:183
134491400,4ptp4l0-21swapper/311:00:193
134491400,4ptp4l0-21swapper/310:30:273
134491400,4ptp4l0-21swapper/308:05:203
134491400,4ptp4l0-21swapper/307:50:183
134491400,4ptp4l0-21swapper/012:27:080
134491400,4ptp4l0-21swapper/012:17:220
134491400,4ptp4l0-21swapper/011:37:530
134491400,4ptp4l0-21swapper/007:10:110
134491400,3ptp4l8091-21iostat08:55:200
134491400,3ptp4l30533-21apt-get09:45:020
134491400,3ptp4l1783-21ls07:30:252
134491390,5ptp4l0-21swapper/312:30:043
134491390,5ptp4l0-21swapper/310:50:123
134491390,5ptp4l0-21swapper/310:50:123
134491390,5ptp4l0-21swapper/308:00:233
134491390,5ptp4l0-21swapper/212:35:362
134491390,4ptp4l24445-21df10:40:130
134491390,4ptp4l0-21swapper/312:15:173
134491390,4ptp4l0-21swapper/311:57:453
134491390,4ptp4l0-21swapper/310:35:233
134491390,4ptp4l0-21swapper/308:54:403
134491390,4ptp4l0-21swapper/307:35:513
134491390,4ptp4l0-21swapper/307:30:293
134491390,4ptp4l0-21swapper/307:25:203
134491390,4ptp4l0-21swapper/212:10:252
134491390,4ptp4l0-21swapper/210:44:592
134491390,4ptp4l0-21swapper/209:47:202
134491390,4ptp4l0-21swapper/209:15:252
134491390,4ptp4l0-21swapper/209:10:532
134491390,4ptp4l0-21swapper/209:06:342
134491390,4ptp4l0-21swapper/208:25:442
134491390,4ptp4l0-21swapper/208:15:012
134491390,4ptp4l0-21swapper/011:57:260
134491390,4ptp4l0-21swapper/011:48:440
134491390,4ptp4l0-21swapper/011:30:570
134491390,4ptp4l0-21swapper/011:15:030
134491390,4ptp4l0-21swapper/011:11:330
134491390,4ptp4l0-21swapper/011:00:390
134491390,4ptp4l0-21swapper/010:19:220
134491390,4ptp4l0-21swapper/009:30:330
134491390,4ptp4l0-21swapper/009:21:200
134491390,4ptp4l0-21swapper/008:25:160
134491390,4ptp4l0-21swapper/007:55:200
134491390,4ptp4l0-21swapper/007:50:220
134491390,4ptp4l0-21swapper/007:17:210
134491390,3ptp4l8751-21irqstats10:05:180
134491390,3ptp4l28478-21diskstats07:20:150
134491390,3ptp4l28478-21diskstats07:20:150
134491390,3ptp4l11876-21users10:10:270
134491390,3ptp4l0-21swapper/211:35:402
134491390,3ptp4l0-21swapper/208:17:092
134491390,2ptp4l2883-21apt-get08:45:132
134491380,5ptp4l0-21swapper/311:40:213
134491380,5ptp4l0-21swapper/212:05:232
134491380,4ptp4l0-21swapper/312:39:023
134491380,4ptp4l0-21swapper/312:10:273
134491380,4ptp4l0-21swapper/311:47:193
134491380,4ptp4l0-21swapper/311:09:573
134491380,4ptp4l0-21swapper/310:25:243
134491380,4ptp4l0-21swapper/310:15:233
134491380,4ptp4l0-21swapper/309:55:233
134491380,4ptp4l0-21swapper/309:35:133
134491380,4ptp4l0-21swapper/308:15:193
134491380,4ptp4l0-21swapper/307:15:243
134491380,4ptp4l0-21swapper/307:10:183
134491380,4ptp4l0-21swapper/212:25:092
134491380,4ptp4l0-21swapper/212:20:282
134491380,4ptp4l0-21swapper/211:10:212
134491380,4ptp4l0-21swapper/211:09:562
134491380,4ptp4l0-21swapper/210:13:562
134491380,4ptp4l0-21swapper/209:52:212
134491380,4ptp4l0-21swapper/209:41:122
134491380,4ptp4l0-21swapper/209:35:142
134491380,4ptp4l0-21swapper/209:00:052
134491380,4ptp4l0-21swapper/209:00:052
134491380,4ptp4l0-21swapper/011:25:290
134491380,4ptp4l0-21swapper/008:15:240
134491380,4ptp4l0-21swapper/008:10:230
134491380,4ptp4l0-21swapper/007:37:170
134491380,3ptp4l8357-21diskstats11:15:153
134491380,3ptp4l0-21swapper/309:00:243
134491380,3ptp4l0-21swapper/309:00:243
134491380,3ptp4l0-21swapper/307:40:433
134491380,3ptp4l0-21swapper/207:10:192
134491380,3ptp4l0-21swapper/009:40:020
134491370,4ptp4l0-21swapper/312:25:113
134491370,4ptp4l0-21swapper/311:20:273
134491370,4ptp4l0-21swapper/311:20:273
134491370,4ptp4l0-21swapper/310:24:123
134491370,4ptp4l0-21swapper/310:10:543
134491370,4ptp4l0-21swapper/310:02:013
134491370,4ptp4l0-21swapper/209:25:182
134491370,4ptp4l0-21swapper/208:56:272
134491370,3ptp4l28113-21ls10:45:282
134491370,3ptp4l0-21swapper/311:30:153
134491370,3ptp4l0-21swapper/309:53:163
134491370,2ptp4l1301-21snmpd09:48:103
134491360,3ptp4l0-21swapper/310:05:573
134491360,3ptp4l0-21swapper/309:44:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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