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2026-08-12 - 18:02
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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 Aug 12, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1356521400,5sleep3380999cyclictest07:30:183
134491820,4ptp4l0-21swapper/012:20:170
134491590,4ptp4l0-21swapper/312:39:553
134491590,4ptp4l0-21swapper/208:40:072
134491580,4ptp4l0-21swapper/311:44:213
134491580,3ptp4l8602-21apt-get08:30:122
134491580,3ptp4l0-21swapper/207:35:162
134491570,4ptp4l0-21swapper/311:05:263
134491570,4ptp4l0-21swapper/310:00:133
134491550,4ptp4l0-21swapper/210:30:172
134491550,4ptp4l0-21swapper/011:00:120
134491540,4ptp4l0-21swapper/010:07:590
134491540,4ptp4l0-21swapper/008:39:130
134491540,4ptp4l0-21swapper/008:39:130
134491530,5ptp4l0-21swapper/009:14:560
134491530,4ptp4l0-21swapper/009:04:140
146572520,5sleep20-21swapper/209:50:222
134491520,3ptp4l0-21swapper/208:35:172
134491520,3ptp4l0-21swapper/208:35:172
134491520,3ptp4l0-21swapper/007:28:020
134491510,5ptp4l0-21swapper/012:26:470
134491510,5ptp4l0-21swapper/009:07:340
134491510,5ptp4l0-21swapper/009:07:340
134491510,4ptp4l0-21swapper/209:26:122
134491510,4ptp4l0-21swapper/012:32:190
134491510,4ptp4l0-21swapper/012:07:060
134491510,4ptp4l0-21swapper/007:05:100
134491510,3ptp4l0-21swapper/212:05:332
134491510,3ptp4l0-21swapper/209:08:472
134491510,3ptp4l0-21swapper/209:08:472
134491510,3ptp4l0-21swapper/208:45:332
134491510,3ptp4l0-21swapper/112:12:101
134491510,3ptp4l0-21swapper/011:50:590
134491510,10ptp4l2660-21/usr/sbin/munin07:05:231
134491500,4ptp4l0-21swapper/312:33:453
134491500,4ptp4l0-21swapper/212:31:162
134491500,4ptp4l0-21swapper/207:51:192
134491500,4ptp4l0-21swapper/010:57:390
134491500,4ptp4l0-21swapper/010:21:540
134491500,4ptp4l0-21swapper/008:55:300
134491500,4ptp4l0-21swapper/008:00:590
134491490,4ptp4l0-21swapper/208:57:562
134491490,4ptp4l0-21swapper/011:37:350
134491490,4ptp4l0-21swapper/008:26:140
380999482,44cyclictest0-21swapper/312:16:583
134491480,4ptp4l0-21swapper/308:14:173
134491480,4ptp4l0-21swapper/111:40:251
134491480,4ptp4l0-21swapper/011:31:030
134491480,4ptp4l0-21swapper/010:42:000
134491480,4ptp4l0-21swapper/010:36:520
134491480,4ptp4l0-21swapper/010:31:370
134491480,4ptp4l0-21swapper/010:26:080
134491480,4ptp4l0-21swapper/009:39:260
134491480,4ptp4l0-21swapper/008:48:030
134491480,4ptp4l0-21swapper/007:31:590
134491480,3ptp4l0-21swapper/311:16:413
134491470,4ptp4l0-21swapper/211:12:592
134491470,4ptp4l0-21swapper/009:46:370
134491470,4ptp4l0-21swapper/007:21:590
134491470,3ptp4l0-21swapper/312:01:363
134491470,3ptp4l0-21swapper/209:17:542
134491470,1ptp4l0-21swapper/310:59:023
134491460,9ptp4l0-21swapper/207:43:572
134491460,5ptp4l11277-21apt-get09:45:132
134491460,4ptp4l380999cyclictest12:26:253
134491460,4ptp4l0-21swapper/309:07:593
134491460,4ptp4l0-21swapper/309:07:593
134491460,4ptp4l0-21swapper/210:40:162
134491460,4ptp4l0-21swapper/208:18:202
134491460,4ptp4l0-21swapper/207:58:432
134491450,4ptp4l0-21swapper/009:55:400
134491440,7ptp4l0-21swapper/208:14:212
134491440,5ptp4l2358-21apt-get11:45:133
134491440,4ptp4l13216-21apt-get08:40:131
134491440,4ptp4l10899-21apt-get08:35:123
134491440,4ptp4l10899-21apt-get08:35:123
134491440,4ptp4l0-21swapper/108:12:541
134491440,3ptp4l0-21swapper/207:46:082
134491440,2ptp4l0-21swapper/212:26:032
134491440,10ptp4l0-21swapper/211:00:172
134491440,10ptp4l0-21swapper/011:28:330
134491430,7ptp4l0-21swapper/208:00:552
134491430,5ptp4l32415-21apt-get11:40:132
134491430,4ptp4l23087-21iostat07:50:180
134491430,4ptp4l0-21swapper/208:51:382
134491430,4ptp4l0-21swapper/208:23:252
134491430,3ptp4l0-21swapper/210:24:452
134491430,3ptp4l0-21swapper/209:36:382
134491430,10ptp4l0-21swapper/310:24:283
134491430,10ptp4l0-21swapper/308:22:303
3807994237,3cyclictest25-21ksoftirqd/109:59:591
3807994236,4cyclictest18311-21wc11:10:011
134491420,9ptp4l0-21swapper/307:44:433
134491420,9ptp4l0-21swapper/011:11:530
134491420,5ptp4l9401-21meminfo07:20:202
134491420,5ptp4l32674-21meminfo08:10:200
134491420,5ptp4l30171-21apt-get10:25:143
134491420,5ptp4l0-21swapper/307:15:143
134491420,5ptp4l0-21swapper/008:00:000
134491420,4ptp4l22686-21apt-get09:00:113
134491420,4ptp4l0-21swapper/310:10:223
134491420,3ptp4l0-21swapper/308:46:303
134491420,11ptp4l0-21swapper/311:39:543
134491420,10ptp4l0-21swapper/309:49:083
3806994136,3cyclictest9-21ksoftirqd/012:40:010
134491410,6ptp4l0-21swapper/311:00:293
134491410,5ptp4l0-21swapper/211:45:222
134491410,5ptp4l0-21swapper/108:30:131
134491410,5ptp4l0-21swapper/012:15:460
134491410,5ptp4l0-21swapper/007:10:130
134491410,4ptp4l8453-21apt-get07:20:133
134491410,4ptp4l3436-21ls10:35:213
134491410,4ptp4l3185-21ntp_states09:25:233
134491410,4ptp4l25511-21apt-get11:25:132
134491410,4ptp4l17940-21apt-get10:00:022
134491410,4ptp4l15238-21users09:50:280
134491410,4ptp4l11703-21hddtemp_smartct09:45:161
134491410,4ptp4l0-21swapper/207:17:242
134491410,4ptp4l0-21swapper/108:50:191
134491410,4ptp4l0-21swapper/107:35:111
134491410,4ptp4l0-21swapper/011:43:130
134491410,4ptp4l0-21swapper/010:04:110
134491410,4ptp4l0-21swapper/008:53:540
134491410,4ptp4l0-21swapper/008:40:210
134491410,4ptp4l0-21swapper/007:35:150
134491410,3ptp4l32466-21apt-get10:30:113
134491410,3ptp4l29715-21apt-get10:25:042
134491410,3ptp4l12012-21ntp_states08:35:221
134491410,3ptp4l12012-21ntp_states08:35:221
134491410,3ptp4l10750-21apt-get07:25:132
134491410,3ptp4l0-21swapper/210:47:432
3809994033,4cyclictest9665-21fschecks_count10:50:173
3807994035,3cyclictest25-21ksoftirqd/111:50:001
3807994026,5cyclictest25-21ksoftirqd/109:43:141
134491400,6ptp4l0-21swapper/311:30:253
134491400,5ptp4l16334-21/usr/sbin/munin11:05:122
134491400,5ptp4l0-21swapper/209:00:112
134491400,5ptp4l0-21swapper/108:19:431
134491400,5ptp4l0-21swapper/008:32:290
134491400,4ptp4l7609-21iostat_ios10:45:191
134491400,4ptp4l5793-21ntp_states11:50:242
134491400,4ptp4l30002-21iostat_ios08:05:183
134491400,4ptp4l28398-21ntp_states09:10:233
134491400,4ptp4l27646-21if_enp4s008:00:183
134491400,4ptp4l26360-21ls10:15:213
134491400,4ptp4l22007-21ntp_states11:15:212
134491400,4ptp4l20853-21/usr/sbin/munin08:55:173
134491400,4ptp4l18303-21hddtemp_smartct07:40:160
134491400,4ptp4l14334-21ntp_states08:40:253
134491400,4ptp4l0-21swapper/309:55:263
134491400,4ptp4l0-21swapper/307:13:093
134491400,4ptp4l0-21swapper/212:35:282
134491400,4ptp4l0-21swapper/211:23:122
134491400,4ptp4l0-21swapper/209:22:182
134491400,4ptp4l0-21swapper/207:06:172
134491400,4ptp4l0-21swapper/112:35:151
134491400,4ptp4l0-21swapper/110:55:191
134491400,4ptp4l0-21swapper/012:13:390
134491400,4ptp4l0-21swapper/012:04:540
134491400,4ptp4l0-21swapper/011:23:420
134491400,4ptp4l0-21swapper/010:12:590
134491400,4ptp4l0-21swapper/008:15:410
134491400,4ptp4l0-21swapper/008:05:090
134491400,4ptp4l0-21swapper/007:48:170
134491400,4ptp4l0-21swapper/007:17:300
134491400,3ptp4l625-21memory09:20:210
134491400,3ptp4l24780-21ls11:20:273
134491400,3ptp4l18019-21apt-get08:50:133
134491400,3ptp4l14517-21meminfo09:50:191
134491400,3ptp4l0-21swapper/209:43:132
134491390,5ptp4l12799-21phc2sys10:55:232
134491390,5ptp4l0-21swapper/311:51:103
134491390,5ptp4l0-21swapper/209:10:212
134491390,5ptp4l0-21swapper/011:15:190
134491390,5ptp4l0-21swapper/010:45:200
134491390,4ptp4l6037-21users09:30:290
134491390,4ptp4l18406-21sed10:00:001
134491390,4ptp4l15383-21ls12:10:283
134491390,4ptp4l0-21swapper/312:20:153
134491390,4ptp4l0-21swapper/312:05:353
134491390,4ptp4l0-21swapper/311:55:203
134491390,4ptp4l0-21swapper/310:45:223
134491390,4ptp4l0-21swapper/310:41:583
134491390,4ptp4l0-21swapper/310:05:183
134491390,4ptp4l0-21swapper/309:50:223
134491390,4ptp4l0-21swapper/309:40:103
134491390,4ptp4l0-21swapper/308:35:003
134491390,4ptp4l0-21swapper/308:25:243
134491390,4ptp4l0-21swapper/308:15:283
134491390,4ptp4l0-21swapper/307:55:153
134491390,4ptp4l0-21swapper/307:50:253
134491390,4ptp4l0-21swapper/307:29:423
134491390,4ptp4l0-21swapper/212:11:352
134491390,4ptp4l0-21swapper/211:37:402
134491390,4ptp4l0-21swapper/210:38:192
134491390,4ptp4l0-21swapper/210:15:172
134491390,4ptp4l0-21swapper/210:05:152
134491390,4ptp4l0-21swapper/207:10:282
134491390,4ptp4l0-21swapper/112:32:241
134491390,4ptp4l0-21swapper/110:35:001
134491390,4ptp4l0-21swapper/109:20:231
134491390,4ptp4l0-21swapper/108:45:071
134491390,4ptp4l0-21swapper/011:57:280
134491390,4ptp4l0-21swapper/011:48:480
134491390,4ptp4l0-21swapper/011:07:060
134491390,4ptp4l0-21swapper/010:15:050
134491390,4ptp4l0-21swapper/009:41:410
134491390,4ptp4l0-21swapper/009:25:240
134491390,4ptp4l0-21swapper/008:24:360
134491390,3ptp4l30381-21meminfo08:05:212
134491390,3ptp4l17682-21ls12:15:292
3807993833,3cyclictest25-21ksoftirqd/109:40:001
134491380,4ptp4l9410-21cat10:50:132
134491380,4ptp4l4205-21expr08:20:151
134491380,4ptp4l0-21swapper/311:26:513
134491380,4ptp4l0-21swapper/309:35:163
134491380,4ptp4l0-21swapper/309:30:233
134491380,4ptp4l0-21swapper/309:15:283
134491380,4ptp4l0-21swapper/307:35:133
134491380,4ptp4l0-21swapper/212:21:562
134491380,4ptp4l0-21swapper/212:00:402
134491380,4ptp4l0-21swapper/211:58:082
134491380,4ptp4l0-21swapper/211:30:232
134491380,4ptp4l0-21swapper/210:11:142
134491380,4ptp4l0-21swapper/209:55:282
134491380,4ptp4l0-21swapper/207:30:232
134491380,4ptp4l0-21swapper/112:24:271
134491380,4ptp4l0-21swapper/112:08:391
134491380,4ptp4l0-21swapper/112:03:341
134491380,4ptp4l0-21swapper/111:58:121
134491380,4ptp4l0-21swapper/111:20:221
134491380,4ptp4l0-21swapper/110:52:191
134491380,4ptp4l0-21swapper/110:10:241
134491380,4ptp4l0-21swapper/108:26:141
134491380,4ptp4l0-21swapper/108:09:301
134491380,4ptp4l0-21swapper/107:59:071
134491380,4ptp4l0-21swapper/010:51:570
134491380,4ptp4l0-21swapper/009:19:250
134491380,3ptp4l4677-21/usr/sbin/munin09:30:162
134491380,3ptp4l19439-21irqstats11:10:193
134491380,3ptp4l0-21swapper/309:22:263
134491380,3ptp4l0-21swapper/307:45:173
134491380,3ptp4l0-21swapper/208:25:242
3807993732,3cyclictest25-21ksoftirqd/109:05:131
3807993732,3cyclictest25-21ksoftirqd/109:05:131
3807993731,4cyclictest25-21ksoftirqd/109:10:291
134491370,4ptp4l0-21swapper/111:36:581
134491370,4ptp4l0-21swapper/108:00:301
134491370,3ptp4l4970-21df_abs10:40:141
134491370,3ptp4l0-21swapper/112:25:481
134491370,3ptp4l0-21swapper/112:16:451
134491370,3ptp4l0-21swapper/111:34:071
134491370,3ptp4l0-21swapper/111:26:321
134491370,3ptp4l0-21swapper/111:13:051
134491370,3ptp4l0-21swapper/109:15:131
134491370,3ptp4l0-21swapper/107:51:581
134491370,3ptp4l0-21swapper/107:41:341
134491370,3ptp4l0-21swapper/107:31:201
134491370,3ptp4l0-21swapper/107:27:571
134491370,3ptp4l0-21swapper/107:17:191
134491370,2ptp4l0-21swapper/111:51:191
134491360,3ptp4l0-21swapper/111:19:541
134491360,3ptp4l0-21swapper/111:00:151
134491360,3ptp4l0-21swapper/110:35:011
134491360,3ptp4l0-21swapper/110:15:141
134491360,3ptp4l0-21swapper/110:07:131
134491360,3ptp4l0-21swapper/109:25:251
134491360,3ptp4l0-21swapper/107:48:461
3807993530,3cyclictest25-21ksoftirqd/109:30:151
134491350,5ptp4l0-21swapper/307:06:193
134491350,3ptp4l0-21swapper/107:13:491
3807993429,3cyclictest25-21ksoftirqd/110:25:211
3807993328,3cyclictest25-21ksoftirqd/109:04:071
3807993024,4cyclictest25-21ksoftirqd/107:22:051
3807992722,3cyclictest25-21ksoftirqd/110:21:371
3807992722,3cyclictest25-21ksoftirqd/108:55:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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