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2025-12-24 - 17:30
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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 Dec 24, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2906921370,7sleep3322299cyclictest08:05:003
322099622,24cyclictest0-21swapper/109:22:561
231082600,4sleep223111-21df_abs10:10:152
134491590,4ptp4l0-21swapper/207:40:172
322099585,11cyclictest0-21swapper/107:20:161
134491570,4ptp4l0-21swapper/307:38:583
134491570,4ptp4l0-21swapper/011:37:570
134491570,4ptp4l0-21swapper/011:34:070
134491570,3ptp4l0-21swapper/309:05:353
134491560,4ptp4l0-21swapper/110:47:301
134491560,4ptp4l0-21swapper/011:19:490
134491560,4ptp4l0-21swapper/007:14:390
134491560,3ptp4l0-21swapper/207:32:352
134491560,3ptp4l0-21swapper/010:06:250
134491560,3ptp4l0-21swapper/010:06:250
322099552,51cyclictest0-21swapper/109:10:191
322099550,12cyclictest17578-21chrt08:49:031
322099550,12cyclictest1317-21runrttasks12:26:091
322099550,11cyclictest24829-21taskset10:13:431
322099550,11cyclictest22234-21chrt08:59:461
322099550,11cyclictest12788-21chrt08:36:431
134491550,4ptp4l0-21swapper/310:06:193
134491550,4ptp4l0-21swapper/310:06:193
134491550,4ptp4l0-21swapper/009:57:060
134491550,3ptp4l0-21swapper/307:30:473
134491550,3ptp4l0-21swapper/011:21:390
322099540,12cyclictest8728-21taskset11:57:371
322099540,12cyclictest19468-21chrt07:43:241
322099540,11cyclictest6509-21taskset09:34:521
322099540,11cyclictest1732-21taskset11:42:491
322099540,11cyclictest15363-21taskset08:44:581
322099540,11cyclictest1317-21runrttasks09:07:351
134491540,5ptp4l321999cyclictest09:07:190
134491540,4ptp4l0-21swapper/308:31:253
134491540,4ptp4l0-21swapper/007:53:080
322099530,12cyclictest31622-21chrt10:27:111
322099530,12cyclictest17901-21chrt11:06:231
322099530,11cyclictest28745-21chrt08:01:331
322099530,11cyclictest26634-21chrt07:59:161
322099530,11cyclictest24742-21chrt09:04:311
322099530,11cyclictest17847-21taskset09:57:491
322099530,11cyclictest11047-21chrt10:54:511
134491530,4ptp4l0-21swapper/311:21:053
134491530,4ptp4l0-21swapper/307:51:543
134491530,4ptp4l0-21swapper/009:47:510
134491530,3ptp4l0-21swapper/312:35:253
134491530,3ptp4l0-21swapper/208:44:032
134491530,3ptp4l0-21swapper/111:20:151
134491530,3ptp4l0-21swapper/007:40:170
134491530,12ptp4l0-21swapper/009:15:250
322099525,10cyclictest0-21swapper/112:16:261
322099520,7cyclictest134491ptp4l10:35:281
322099520,13cyclictest24790-21chrt12:31:591
322099520,13cyclictest24790-21chrt12:31:591
322099520,12cyclictest8369-21taskset08:28:571
322099520,12cyclictest27310-21chrt12:39:541
322099520,12cyclictest20302-21chrt11:12:441
322099520,12cyclictest14700-21chrt07:34:091
322099520,11cyclictest6587-21seq11:54:401
322099520,11cyclictest20089-21taskset10:01:481
322099520,11cyclictest15538-21chrt11:00:331
134491520,4ptp4l0-21swapper/308:44:253
134491520,4ptp4l0-21swapper/207:27:302
134491520,4ptp4l0-21swapper/207:10:122
134491520,4ptp4l0-21swapper/009:35:590
134491520,4ptp4l0-21swapper/008:28:190
134491520,3ptp4l0-21swapper/311:26:103
322099510,12cyclictest8609-21chrt09:37:211
322099510,11cyclictest13349-21chrt10:59:571
322099510,11cyclictest1125-21taskset08:14:171
134491510,8ptp4l0-21swapper/008:52:080
134491510,4ptp4l0-21swapper/311:39:293
134491510,4ptp4l0-21swapper/307:22:193
134491510,4ptp4l0-21swapper/207:54:302
134491510,4ptp4l0-21swapper/012:05:230
134491510,4ptp4l0-21swapper/010:36:140
134491510,4ptp4l0-21swapper/007:16:530
134491510,3ptp4l0-21swapper/012:18:300
134491510,3ptp4l0-21swapper/010:01:050
322099500,11cyclictest29475-21chrt11:32:181
322099500,11cyclictest21568-21taskset07:45:521
322099500,11cyclictest15719-21chrt12:13:421
322099500,11cyclictest15719-21chrt12:13:421
322099500,10cyclictest31869-21seq11:38:311
134491500,4ptp4l0-21swapper/207:56:592
134491500,4ptp4l0-21swapper/010:58:360
134491500,4ptp4l0-21swapper/008:24:440
134491500,4ptp4l0-21swapper/008:02:090
134491500,4ptp4l0-21swapper/007:24:590
134491500,3ptp4l0-21swapper/008:17:330
134491500,3ptp4l0-21swapper/007:25:150
134491500,11ptp4l0-21swapper/008:41:400
134491500,11ptp4l0-21swapper/007:45:250
322099490,12cyclictest4277-21chrt11:49:271
322099490,12cyclictest4126-21taskset09:28:461
322099490,12cyclictest15429-21chrt09:51:131
322099490,11cyclictest3654-21chrt08:18:221
322099490,11cyclictest20421-21chrt12:24:491
322099490,11cyclictest10421-21chrt07:25:101
134491490,4ptp4l0-21swapper/311:49:493
134491490,4ptp4l0-21swapper/009:43:580
322099483,42cyclictest0-21swapper/109:40:161
322099481,11cyclictest31089-21chrt08:07:111
322099480,12cyclictest27113-21chrt11:26:241
322099480,12cyclictest22621-21chrt10:09:541
322099480,12cyclictest22621-21chrt10:09:541
322099480,12cyclictest13124-21seq09:46:061
322099480,10cyclictest24372-21seq07:54:341
322099480,10cyclictest20707-21chrt11:15:051
134491480,5ptp4l0-21swapper/107:06:201
134491480,4ptp4l0-21swapper/212:35:262
134491480,4ptp4l0-21swapper/211:11:532
134491480,4ptp4l0-21swapper/210:19:112
134491480,4ptp4l0-21swapper/011:56:180
134491480,3ptp4l0-21swapper/211:58:292
322099470,11cyclictest7344-21chrt07:16:121
322099470,11cyclictest10573-21chrt08:32:461
322099470,10cyclictest1317-21runrttasks10:19:521
134491470,3ptp4l0-21swapper/209:54:322
134491470,3ptp4l0-21swapper/010:46:540
322099465,10cyclictest0-21swapper/112:06:071
322099460,12cyclictest19850-21chrt08:53:441
322099460,11cyclictest29359-21taskset10:22:381
134491460,6ptp4l1956-21ntp_states07:05:230
134491460,4ptp4l0-21swapper/009:01:240
134491460,3ptp4l0-21swapper/311:40:423
134491460,3ptp4l0-21swapper/311:15:493
134491460,2ptp4l0-21swapper/011:08:020
134491450,3ptp4l0-21swapper/310:20:203
134491450,3ptp4l0-21swapper/012:14:350
134491450,3ptp4l0-21swapper/012:14:350
134491450,3ptp4l0-21swapper/009:29:470
322099442,9cyclictest0-21swapper/110:44:331
134491440,9ptp4l0-21swapper/209:56:522
322099430,10cyclictest17065-21chrt07:37:181
134491430,9ptp4l0-21swapper/211:52:502
134491430,9ptp4l0-21swapper/210:57:172
134491430,9ptp4l0-21swapper/209:47:492
134491430,8ptp4l0-21swapper/211:20:502
134491430,4ptp4l2074-21apt-get09:25:132
134491430,4ptp4l11008-21apt-get08:35:122
134491430,3ptp4l0-21swapper/209:22:592
134491430,3ptp4l0-21swapper/012:39:200
134491430,2ptp4l121rcu_preempt10:20:212
322099420,39cyclictest4700-21ps08:20:171
134491420,9ptp4l41-21ksoftirqd/309:16:363
134491420,9ptp4l0-21swapper/211:02:312
134491420,5ptp4l19563-21ntp_states11:10:233
134491420,5ptp4l0-21swapper/308:50:163
134491420,5ptp4l0-21swapper/208:25:232
134491420,5ptp4l0-21swapper/107:10:101
134491420,5ptp4l0-21swapper/010:53:070
134491420,4ptp4l30374-21iostat_ios10:25:173
134491420,4ptp4l2318-21gnome-shell11:32:583
134491420,4ptp4l14403-21users07:30:290
134491420,4ptp4l0-21swapper/010:16:290
134491420,3ptp4l0-21swapper/208:14:012
134491420,3ptp4l0-21swapper/011:43:270
134491420,3ptp4l0-21swapper/010:25:370
134491420,10ptp4l9-21ksoftirqd/010:33:340
134491410,6ptp4l21080-21fschecks_time12:25:173
134491410,5ptp4l0-21swapper/307:55:133
134491410,5ptp4l0-21swapper/307:25:233
134491410,5ptp4l0-21swapper/210:45:122
134491410,4ptp4l7534-21ntp_states08:25:233
134491410,4ptp4l6728-21apt-get10:45:113
134491410,4ptp4l3346-21ntp_states11:45:240
134491410,4ptp4l22715-21apt-get09:00:042
134491410,4ptp4l16740-21ntp_states08:45:230
134491410,4ptp4l14966-21ntp_states11:00:250
134491410,4ptp4l12575-21ls08:35:270
134491410,4ptp4l0-21swapper/007:35:160
134491410,3ptp4l29119-21ls09:10:273
134491410,3ptp4l18442-21apt-get11:10:120
134491410,3ptp4l0-21swapper/209:19:202
134491400,8ptp4l0-21swapper/210:42:512
134491400,5ptp4l9426-21df_abs12:00:150
134491400,5ptp4l30942-21/usr/sbin/munin08:05:280
134491400,5ptp4l0-21swapper/010:40:140
134491400,5ptp4l0-21swapper/009:20:130
134491400,4ptp4l9186-21hddtemp_smartct08:30:510
134491400,4ptp4l27090-21apt-get09:10:010
134491400,4ptp4l27026-21/usr/sbin/munin11:25:280
134491400,4ptp4l10144-21meminfo12:00:211
134491400,4ptp4l0-21swapper/312:10:393
134491400,4ptp4l0-21swapper/312:10:393
134491400,4ptp4l0-21swapper/309:25:223
134491400,4ptp4l0-21swapper/307:17:113
134491400,4ptp4l0-21swapper/209:08:582
134491400,4ptp4l0-21swapper/207:47:262
134491400,4ptp4l0-21swapper/207:36:372
134491400,4ptp4l0-21swapper/207:24:362
134491400,4ptp4l0-21swapper/010:22:030
134491400,4ptp4l0-21swapper/009:30:140
134491400,4ptp4l0-21swapper/008:10:200
134491400,3ptp4l19853-21apt-get07:45:123
134491400,3ptp4l16559-21ls08:45:203
134491400,3ptp4l13060-21ls12:05:292
134491400,3ptp4l0-21swapper/007:55:340
3221993932,5cyclictest33-21ksoftirqd/210:35:032
134491390,6ptp4l0-21swapper/211:36:132
134491390,5ptp4l18818-21smartctl12:20:172
134491390,5ptp4l0-21swapper/211:45:582
134491390,5ptp4l0-21swapper/211:30:262
134491390,5ptp4l0-21swapper/210:25:192
134491390,5ptp4l0-21swapper/208:52:132
134491390,5ptp4l0-21swapper/009:50:240
134491390,4ptp4l0-21swapper/312:20:163
134491390,4ptp4l0-21swapper/310:40:273
134491390,4ptp4l0-21swapper/310:10:243
134491390,4ptp4l0-21swapper/309:45:463
134491390,4ptp4l0-21swapper/309:00:033
134491390,4ptp4l0-21swapper/308:37:463
134491390,4ptp4l0-21swapper/308:15:273
134491390,4ptp4l0-21swapper/307:40:273
134491390,4ptp4l0-21swapper/212:14:422
134491390,4ptp4l0-21swapper/212:14:422
134491390,4ptp4l0-21swapper/212:00:122
134491390,4ptp4l0-21swapper/211:25:272
134491390,4ptp4l0-21swapper/210:54:162
134491390,4ptp4l0-21swapper/210:34:052
134491390,4ptp4l0-21swapper/210:09:512
134491390,4ptp4l0-21swapper/210:09:512
134491390,4ptp4l0-21swapper/209:12:272
134491390,4ptp4l0-21swapper/208:45:122
134491390,4ptp4l0-21swapper/208:04:462
134491390,4ptp4l0-21swapper/110:30:131
134491390,4ptp4l0-21swapper/012:30:100
134491390,4ptp4l0-21swapper/012:30:100
134491390,4ptp4l0-21swapper/012:28:280
134491390,4ptp4l0-21swapper/011:53:440
134491390,4ptp4l0-21swapper/008:56:060
134491390,3ptp4l7801-21ls09:35:253
134491390,3ptp4l20071-21users12:20:290
134491390,3ptp4l0-21swapper/310:16:033
134491390,3ptp4l0-21swapper/211:42:072
134491380,4ptp4l0-21swapper/312:18:413
134491380,4ptp4l0-21swapper/312:06:153
134491380,4ptp4l0-21swapper/311:08:173
134491380,4ptp4l0-21swapper/311:02:193
134491380,4ptp4l0-21swapper/309:50:193
134491380,4ptp4l0-21swapper/309:40:213
134491380,4ptp4l0-21swapper/309:33:573
134491380,4ptp4l0-21swapper/307:10:163
134491380,4ptp4l0-21swapper/211:08:582
134491380,4ptp4l0-21swapper/210:00:272
134491380,4ptp4l0-21swapper/209:40:062
134491380,4ptp4l0-21swapper/209:35:112
134491380,4ptp4l0-21swapper/209:33:282
134491380,4ptp4l0-21swapper/208:56:152
134491380,4ptp4l0-21swapper/208:30:052
134491380,3ptp4l0-21swapper/311:51:023
134491380,3ptp4l0-21swapper/309:23:323
134491380,3ptp4l0-21swapper/211:15:262
134491380,3ptp4l0-21swapper/208:16:292
134491380,3ptp4l0-21swapper/207:15:202
134491370,4ptp4l0-21swapper/310:59:513
134491370,4ptp4l0-21swapper/310:51:243
134491370,4ptp4l0-21swapper/310:36:403
134491370,4ptp4l0-21swapper/310:02:553
134491370,4ptp4l0-21swapper/309:55:143
134491370,4ptp4l0-21swapper/308:55:083
134491370,4ptp4l0-21swapper/212:30:552
134491370,4ptp4l0-21swapper/212:30:552
134491370,4ptp4l0-21swapper/212:17:442
134491370,4ptp4l0-21swapper/208:21:132
134491370,4ptp4l0-21swapper/010:10:220
134491370,3ptp4l0-21swapper/308:06:383
134491370,3ptp4l0-21swapper/212:25:472
134491370,3ptp4l0-21swapper/208:06:392
134491370,3ptp4l0-21swapper/109:15:231
134691360,4getstats0-21swapper/308:20:153
134491360,4ptp4l0-21swapper/311:56:073
134491360,4ptp4l0-21swapper/308:11:233
134491360,3ptp4l0-21swapper/312:00:493
134491350,3ptp4l0-21swapper/310:31:063
137891296,14phc2sys798-21apt-get07:05:132
134491250,3ptp4l0-21swapper/312:31:303
134491250,3ptp4l0-21swapper/312:31:303
16712225,10sleep30-21swapper/307:05:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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