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2026-03-30 - 21:31
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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 rackdslot2.osadl.org (updated Mon Mar 30, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293102233167,22sleep20-21swapper/207:08:072
139591226197,19phc2sys0-21swapper/307:05:583
291902213168,33sleep10-21swapper/107:06:341
291472205172,22sleep00-21swapper/007:06:000
1409021710,5sleep12976099cyclictest07:45:001
1409021710,5sleep12976099cyclictest07:45:001
1605421410,6sleep12976099cyclictest11:10:161
59642940,2sleep10-21swapper/109:40:221
1395918263,10phc2sys0-21swapper/307:10:003
149012610,5sleep12976099cyclictest12:15:191
41298580,18rtkit-daemon0-21swapper/109:55:001
2976299556,16cyclictest0-21swapper/308:40:203
2976299556,10cyclictest6979-21/usr/sbin/munin07:30:253
2976299537,10cyclictest21475-21cat12:29:593
2976299517,8cyclictest14689-21perl12:15:163
2976299517,16cyclictest9472-21/usr/sbin/munin09:50:233
2976299477,18cyclictest18869-21memory09:00:203
29762994726,5cyclictest41-21ksoftirqd/307:15:113
2976299457,8cyclictest24105-21df08:05:143
2976299457,16cyclictest1312-21snmpd09:25:153
2976299457,15cyclictest20196-21/usr/sbin/munin09:05:233
2976099452,40cyclictest18906-21cron12:25:001
2976299447,7cyclictest13261-21diskstats08:50:153
139291430,0ptp4l401ktimersoftd/310:41:433
139291430,0ptp4l401ktimersoftd/310:21:213
139291430,0ptp4l401ktimersoftd/310:21:213
2976299427,8cyclictest3126-21irqstats07:20:203
2976299427,13cyclictest11099-21/usr/sbin/munin07:35:273
139291420,0ptp4l401ktimersoftd/308:45:273
139291420,0ptp4l401ktimersoftd/307:59:353
29760994134,4cyclictest25-21ksoftirqd/108:55:001
139291410,0ptp4l401ktimersoftd/310:00:043
139291410,0ptp4l401ktimersoftd/308:33:573
29760994036,2cyclictest25-21ksoftirqd/110:00:001
29760994034,3cyclictest25-21ksoftirqd/109:40:001
41298390,2rtkit-daemon0-21swapper/110:10:161
29760993934,3cyclictest25-21ksoftirqd/111:39:591
29760993934,3cyclictest25-21ksoftirqd/111:29:591
29760993934,3cyclictest25-21ksoftirqd/111:29:591
29760993934,3cyclictest25-21ksoftirqd/108:05:001
29760993933,4cyclictest25-21ksoftirqd/110:24:351
29760993933,4cyclictest25-21ksoftirqd/110:24:351
29760993933,3cyclictest25-21ksoftirqd/110:20:001
2976299380,8cyclictest0-21swapper/308:02:543
29761993833,3cyclictest50792irq/128-enp1s0-08:53:002
29761993833,3cyclictest33-21ksoftirqd/209:20:002
29761993832,4cyclictest33-21ksoftirqd/208:26:292
29760993834,2cyclictest25-21ksoftirqd/107:20:001
29760993833,3cyclictest25-21ksoftirqd/110:35:001
29760993833,3cyclictest25-21ksoftirqd/108:40:001
29760993832,3cyclictest25-21ksoftirqd/107:50:001
2976299376,18cyclictest0-21swapper/307:40:123
2976299376,18cyclictest0-21swapper/307:40:123
29762993731,4cyclictest41-21ksoftirqd/308:13:183
29762993731,3cyclictest41-21ksoftirqd/310:30:003
29762993731,3cyclictest41-21ksoftirqd/307:25:563
2976299370,13cyclictest28365-21memory09:20:213
29761993732,3cyclictest33-21ksoftirqd/211:00:002
29761993731,4cyclictest33-21ksoftirqd/211:37:052
29761993731,4cyclictest33-21ksoftirqd/209:25:222
29761993731,4cyclictest33-21ksoftirqd/208:39:172
29761993731,4cyclictest33-21ksoftirqd/207:58:012
29760993731,4cyclictest25-21ksoftirqd/110:54:431
29760993731,4cyclictest25-21ksoftirqd/107:12:261
29760993731,3cyclictest25-21ksoftirqd/111:20:171
29760993730,4cyclictest25-21ksoftirqd/110:46:091
29759993731,4cyclictest9-21ksoftirqd/007:20:000
29762993631,3cyclictest41-21ksoftirqd/311:00:133
29762993631,3cyclictest41-21ksoftirqd/308:25:213
29762993630,4cyclictest41-21ksoftirqd/308:24:023
29762993630,4cyclictest41-21ksoftirqd/307:50:043
2976199364,2cyclictest121rcu_preempt11:03:202
29761993631,3cyclictest33-21ksoftirqd/210:53:322
29761993631,3cyclictest33-21ksoftirqd/210:33:182
29761993631,3cyclictest33-21ksoftirqd/209:03:402
29761993631,3cyclictest33-21ksoftirqd/208:24:202
29761993630,4cyclictest33-21ksoftirqd/211:51:042
29761993630,4cyclictest33-21ksoftirqd/211:24:132
29761993630,4cyclictest33-21ksoftirqd/211:18:262
29761993630,4cyclictest33-21ksoftirqd/210:41:242
29761993630,4cyclictest33-21ksoftirqd/210:36:232
29761993630,4cyclictest33-21ksoftirqd/209:47:132
29761993630,4cyclictest33-21ksoftirqd/209:36:332
29761993630,4cyclictest33-21ksoftirqd/208:10:562
2976199362,2cyclictest121rcu_preempt07:30:222
29760993632,3cyclictest25-21ksoftirqd/109:45:161
29760993631,3cyclictest25-21ksoftirqd/111:30:171
29760993631,3cyclictest25-21ksoftirqd/111:30:171
29760993631,3cyclictest25-21ksoftirqd/110:00:171
29760993631,3cyclictest25-21ksoftirqd/108:59:411
29760993631,2cyclictest25-21ksoftirqd/110:25:191
29760993630,4cyclictest25-21ksoftirqd/109:04:271
29759993630,4cyclictest9-21ksoftirqd/011:44:450
29759993630,4cyclictest9-21ksoftirqd/007:55:540
29759993630,4cyclictest9-21ksoftirqd/007:13:300
2975999360,2cyclictest121rcu_preempt12:02:030
2976299357,8cyclictest7062-21irqstats10:50:203
29762993531,3cyclictest41-21ksoftirqd/309:40:213
29762993529,4cyclictest41-21ksoftirqd/311:34:013
29762993529,4cyclictest41-21ksoftirqd/311:34:003
29762993529,4cyclictest41-21ksoftirqd/309:57:333
29761993531,2cyclictest33-21ksoftirqd/208:05:202
29761993530,3cyclictest33-21ksoftirqd/207:40:212
29761993530,3cyclictest33-21ksoftirqd/207:40:202
29761993529,4cyclictest33-21ksoftirqd/209:23:182
29761993529,4cyclictest33-21ksoftirqd/209:09:092
29761993529,4cyclictest33-21ksoftirqd/208:58:422
29761993529,4cyclictest33-21ksoftirqd/208:00:092
29761993529,4cyclictest33-21ksoftirqd/207:23:472
29760993532,2cyclictest25-21ksoftirqd/110:09:591
29760993530,3cyclictest25-21ksoftirqd/112:10:201
29760993530,3cyclictest25-21ksoftirqd/108:30:001
29760993529,3cyclictest25-21ksoftirqd/108:10:001
29759993529,4cyclictest9-21ksoftirqd/011:47:180
29759993529,4cyclictest9-21ksoftirqd/011:11:270
29759993529,4cyclictest9-21ksoftirqd/010:37:170
29762993429,3cyclictest41-21ksoftirqd/311:56:563
29762993429,3cyclictest41-21ksoftirqd/309:15:443
29762993428,4cyclictest41-21ksoftirqd/310:56:383
29761993429,3cyclictest33-21ksoftirqd/212:37:382
29761993429,3cyclictest33-21ksoftirqd/212:00:132
29761993429,3cyclictest33-21ksoftirqd/209:58:542
29761993428,4cyclictest33-21ksoftirqd/212:25:002
29761993428,4cyclictest33-21ksoftirqd/210:18:022
29761993428,4cyclictest33-21ksoftirqd/209:10:342
29761993428,4cyclictest33-21ksoftirqd/207:16:502
29761993428,4cyclictest33-21ksoftirqd/207:12:032
29760993431,2cyclictest25-21ksoftirqd/109:15:131
29760993430,3cyclictest25-21ksoftirqd/112:05:201
29760993430,2cyclictest25-21ksoftirqd/109:10:001
29760993429,3cyclictest25-21ksoftirqd/111:05:191
29760993429,3cyclictest25-21ksoftirqd/109:15:001
29760993429,3cyclictest25-21ksoftirqd/108:45:191
29760993429,3cyclictest25-21ksoftirqd/108:15:181
29760993429,3cyclictest25-21ksoftirqd/107:25:001
29760993428,4cyclictest25-21ksoftirqd/112:31:471
29760993428,4cyclictest25-21ksoftirqd/112:26:411
29760993428,4cyclictest25-21ksoftirqd/107:37:501
29759993429,3cyclictest9-21ksoftirqd/012:05:080
29759993429,3cyclictest9-21ksoftirqd/011:25:550
29759993429,3cyclictest9-21ksoftirqd/011:25:550
29759993429,3cyclictest9-21ksoftirqd/011:23:430
29759993429,3cyclictest9-21ksoftirqd/010:22:270
29759993429,3cyclictest9-21ksoftirqd/010:22:270
29759993429,3cyclictest9-21ksoftirqd/009:09:360
29759993428,4cyclictest9-21ksoftirqd/012:11:010
29759993428,4cyclictest9-21ksoftirqd/010:28:390
29759993428,4cyclictest9-21ksoftirqd/009:10:040
29759993428,4cyclictest9-21ksoftirqd/008:36:310
29759993428,4cyclictest9-21ksoftirqd/008:08:300
29759993428,3cyclictest9-21ksoftirqd/011:01:200
29759993428,3cyclictest9-21ksoftirqd/009:00:100
29759993427,4cyclictest9-21ksoftirqd/008:49:380
2976299339,11cyclictest18693-21sshd10:06:213
2976299338,14cyclictest1312-21snmpd08:37:583
29762993328,3cyclictest41-21ksoftirqd/311:45:203
29762993328,3cyclictest41-21ksoftirqd/309:33:563
29762993327,4cyclictest41-21ksoftirqd/311:23:493
29762993327,4cyclictest41-21ksoftirqd/310:38:003
29762993327,3cyclictest41-21ksoftirqd/311:11:033
29761993328,3cyclictest33-21ksoftirqd/212:34:412
29761993328,3cyclictest33-21ksoftirqd/212:08:372
29761993328,3cyclictest33-21ksoftirqd/210:23:032
29761993328,3cyclictest33-21ksoftirqd/210:23:022
29761993327,4cyclictest33-21ksoftirqd/210:46:212
29761993327,4cyclictest33-21ksoftirqd/210:04:062
29761993327,4cyclictest33-21ksoftirqd/209:41:592
29761993327,4cyclictest33-21ksoftirqd/207:46:172
29760993328,3cyclictest25-21ksoftirqd/111:53:071
29760993328,3cyclictest25-21ksoftirqd/110:35:121
29760993328,3cyclictest25-21ksoftirqd/107:30:121
29760993328,3cyclictest25-21ksoftirqd/107:25:171
29760993327,4cyclictest25-21ksoftirqd/108:40:281
29759993328,3cyclictest9-21ksoftirqd/011:53:140
29759993328,3cyclictest9-21ksoftirqd/011:39:230
29759993328,3cyclictest9-21ksoftirqd/011:31:330
29759993328,3cyclictest9-21ksoftirqd/011:31:330
29759993328,3cyclictest9-21ksoftirqd/010:10:330
29759993328,3cyclictest9-21ksoftirqd/010:01:190
29759993328,3cyclictest9-21ksoftirqd/009:46:590
29759993328,3cyclictest9-21ksoftirqd/008:26:270
29759993328,3cyclictest9-21ksoftirqd/008:25:000
29759993327,4cyclictest9-21ksoftirqd/010:56:230
29759993327,4cyclictest9-21ksoftirqd/009:39:480
29759993327,4cyclictest9-21ksoftirqd/007:43:350
29759993327,4cyclictest9-21ksoftirqd/007:43:340
29759993326,4cyclictest9-21ksoftirqd/012:15:090
29762993227,3cyclictest41-21ksoftirqd/312:13:203
29762993227,3cyclictest41-21ksoftirqd/311:38:293
29762993227,3cyclictest41-21ksoftirqd/310:13:213
29762993227,3cyclictest41-21ksoftirqd/308:16:393
29762993227,3cyclictest41-21ksoftirqd/307:47:513
29762993226,4cyclictest41-21ksoftirqd/311:41:593
29762993226,4cyclictest41-21ksoftirqd/309:49:583
29761993227,3cyclictest33-21ksoftirqd/210:11:522
29761993227,3cyclictest33-21ksoftirqd/208:30:252
29761993227,3cyclictest33-21ksoftirqd/207:50:592
29761993226,4cyclictest33-21ksoftirqd/210:08:512
29760993227,3cyclictest25-21ksoftirqd/111:45:011
29760993226,4cyclictest25-21ksoftirqd/111:18:541
29760993226,4cyclictest25-21ksoftirqd/109:20:361
29760993220,9cyclictest25-21ksoftirqd/108:10:271
29759993227,3cyclictest9-21ksoftirqd/010:18:120
29759993227,3cyclictest9-21ksoftirqd/009:29:050
29759993227,3cyclictest9-21ksoftirqd/008:50:350
29759993227,3cyclictest9-21ksoftirqd/008:14:000
29759993227,3cyclictest9-21ksoftirqd/007:37:060
29759993227,3cyclictest9-21ksoftirqd/007:22:080
29759993226,4cyclictest9-21ksoftirqd/011:06:300
29759993226,4cyclictest9-21ksoftirqd/010:52:580
29759993226,4cyclictest9-21ksoftirqd/008:34:090
29759993225,4cyclictest9-21ksoftirqd/009:45:000
29762993126,3cyclictest41-21ksoftirqd/312:35:543
29762993126,3cyclictest41-21ksoftirqd/312:34:113
29762993126,3cyclictest41-21ksoftirqd/312:22:243
29762993126,3cyclictest41-21ksoftirqd/312:06:103
29762993125,4cyclictest41-21ksoftirqd/311:54:023
29762993125,4cyclictest41-21ksoftirqd/308:57:433
29761993126,3cyclictest33-21ksoftirqd/212:16:292
29761993126,3cyclictest33-21ksoftirqd/209:54:392
29761993126,3cyclictest33-21ksoftirqd/209:32:302
29761993126,3cyclictest33-21ksoftirqd/208:15:182
29761993126,3cyclictest33-21ksoftirqd/207:26:132
29761993125,4cyclictest33-21ksoftirqd/212:11:072
29761993125,4cyclictest33-21ksoftirqd/211:45:112
29761993125,4cyclictest33-21ksoftirqd/211:08:562
29760993126,3cyclictest25-21ksoftirqd/112:02:221
29760993126,3cyclictest25-21ksoftirqd/110:55:121
29760993126,3cyclictest25-21ksoftirqd/109:25:191
29760993126,3cyclictest25-21ksoftirqd/107:55:211
29760993125,4cyclictest25-21ksoftirqd/108:23:271
29760993125,4cyclictest25-21ksoftirqd/107:51:381
29759993126,3cyclictest9-21ksoftirqd/012:33:510
29759993126,3cyclictest9-21ksoftirqd/010:44:410
29759993126,3cyclictest9-21ksoftirqd/009:20:540
29759993126,3cyclictest9-21ksoftirqd/007:50:570
29759993125,4cyclictest9-21ksoftirqd/010:47:190
29759993125,4cyclictest9-21ksoftirqd/007:32:230
29759993125,3cyclictest9-21ksoftirqd/009:30:090
29762993025,3cyclictest41-21ksoftirqd/311:18:403
29762993025,3cyclictest41-21ksoftirqd/311:05:123
29762993025,3cyclictest41-21ksoftirqd/310:30:113
29762993024,4cyclictest41-21ksoftirqd/309:38:593
29761993025,3cyclictest33-21ksoftirqd/211:55:382
29761993025,3cyclictest33-21ksoftirqd/211:42:162
29761993025,3cyclictest33-21ksoftirqd/211:31:002
29761993025,3cyclictest33-21ksoftirqd/211:31:002
29761993025,3cyclictest33-21ksoftirqd/207:40:002
29760993025,3cyclictest25-21ksoftirqd/112:35:191
29760993025,3cyclictest25-21ksoftirqd/111:00:191
29760993025,3cyclictest25-21ksoftirqd/108:30:221
29759993025,3cyclictest9-21ksoftirqd/010:34:400
29759993025,3cyclictest9-21ksoftirqd/010:08:170
29759993025,3cyclictest9-21ksoftirqd/009:17:500
29759993025,3cyclictest9-21ksoftirqd/008:44:290
29759993024,4cyclictest9-21ksoftirqd/012:26:330
29762992923,4cyclictest41-21ksoftirqd/311:27:573
29762992923,4cyclictest41-21ksoftirqd/311:27:573
29761992924,3cyclictest33-21ksoftirqd/211:25:232
29761992924,3cyclictest33-21ksoftirqd/211:25:232
29761992924,3cyclictest33-21ksoftirqd/208:42:382
29761992923,4cyclictest33-21ksoftirqd/212:29:362
29760992925,3cyclictest25-21ksoftirqd/109:30:171
29760992925,2cyclictest25-21ksoftirqd/111:45:221
29760992924,3cyclictest25-21ksoftirqd/111:55:291
29760992924,3cyclictest25-21ksoftirqd/110:40:391
29759992924,3cyclictest9-21ksoftirqd/012:39:370
29759992924,3cyclictest9-21ksoftirqd/011:16:030
29759992924,3cyclictest9-21ksoftirqd/009:59:300
29759992924,3cyclictest9-21ksoftirqd/007:47:520
29759992923,4cyclictest9-21ksoftirqd/008:57:360
29759992923,4cyclictest9-21ksoftirqd/007:27:540
2976299285,10cyclictest1312-21snmpd10:15:233
29762992822,4cyclictest41-21ksoftirqd/310:45:063
29759992822,4cyclictest9-21ksoftirqd/012:23:480
29759992822,4cyclictest9-21ksoftirqd/008:19:010
29761992722,3cyclictest33-21ksoftirqd/210:28:352
29761992721,3cyclictest33-21ksoftirqd/211:10:102
29759992721,4cyclictest9-21ksoftirqd/011:57:120
29762992621,3cyclictest41-21ksoftirqd/312:01:373
29759992622,2cyclictest9-21ksoftirqd/009:50:110
29759992621,3cyclictest9-21ksoftirqd/008:01:520
2976299255,7cyclictest307-21avahi-daemon09:14:343
29761992520,3cyclictest33-21ksoftirqd/208:45:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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