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2026-01-12 - 10:40
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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 rackdslot4.osadl.org (updated Mon Jan 12, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591225167,46phc2sys0-21swapper/319:08:443
195342203171,21sleep20-21swapper/219:08:292
194702203170,22sleep10-21swapper/119:07:401
194442199166,22sleep00-21swapper/019:07:180
2495621450,7sleep21994599cyclictest21:28:452
310002720,2sleep10-21swapper/119:30:181
1994699610,22cyclictest3424-21sh20:45:133
1994699610,22cyclictest32290-21users22:45:303
1994699610,22cyclictest1303-21runrttasks00:30:123
1994699610,21cyclictest21983-21uname00:35:193
1994699601,22cyclictest19736-21users21:15:303
1994699600,22cyclictest16061-21dpkg00:25:113
1994699591,21cyclictest6379-21irqstats19:45:183
1994699590,23cyclictest18268-21sh22:20:133
1994699590,22cyclictest11095-21smartctl21:00:153
1994699590,22cyclictest11095-21smartctl21:00:153
1994699590,21cyclictest9656-21users22:00:293
145452590,3sleep30-21swapper/323:15:213
1994699580,22cyclictest6562-21smartctl00:05:163
1994699580,22cyclictest16154-21sh21:10:173
1994699570,21cyclictest10289-21dpkg22:05:113
1994699551,22cyclictest16457-21irqstats20:05:203
1994699550,26cyclictest23825-21cut21:25:183
22272540,4sleep32230-21timerwakeupswit20:40:283
1994699540,23cyclictest27710-21dpkg19:25:003
1994699540,23cyclictest24366-21sensors20:20:243
50798530,2rtkit-daemon506-21rtkit-daemon19:50:201
1994699480,21cyclictest12864-21dpkg22:10:013
1994699430,23cyclictest32714-21/usr/sbin/munin19:35:203
19945994338,3cyclictest32458-21cron21:45:012
1994599433,5cyclictest0-21swapper/220:55:012
19943994329,12cyclictest9-21ksoftirqd/000:17:000
1994699423,20cyclictest30292-21apt-key20:35:003
138491420,0ptp4l401ktimersoftd/323:45:173
138491420,0ptp4l401ktimersoftd/323:39:013
1994599410,12cyclictest11373-21diskstats23:10:132
1994699400,22cyclictest20385-21dpkg20:15:103
19945994033,4cyclictest20765-21runrttasks00:34:592
1994699391,27cyclictest26645-21seq19:20:263
1994699391,22cyclictest20546-21latency_hist23:30:013
1994699390,23cyclictest10932-21cat00:14:593
1994699390,20cyclictest22418-21/usr/sbin/munin19:15:183
1994599392,5cyclictest0-21swapper/221:06:302
1994599390,10cyclictest17513-21sed23:20:262
19943993932,4cyclictest9-21ksoftirqd/021:15:110
19946993832,4cyclictest41-21ksoftirqd/323:53:123
1994699381,23cyclictest2796-21cat21:50:003
1994699380,23cyclictest29648-21chrt21:35:523
1994599381,15cyclictest23639-21grep19:15:222
19944993832,4cyclictest25-21ksoftirqd/122:04:461
1994499380,2cyclictest0-21swapper/123:32:531
1994699370,22cyclictest25730-21df_abs21:30:133
1994699370,22cyclictest22622-21users23:30:283
19944993730,4cyclictest25-21ksoftirqd/122:10:201
19944993728,3cyclictest25-21ksoftirqd/123:38:591
19946993631,3cyclictest10665-21cron23:10:013
1994699361,25cyclictest0-21swapper/322:25:123
1994699361,22cyclictest8841-21irqstats19:50:193
1994699361,16cyclictest0-21swapper/321:20:293
1994599364,17cyclictest20571-21perf23:30:002
19945993630,4cyclictest33-21ksoftirqd/219:14:072
19944993630,4cyclictest25-21ksoftirqd/123:06:001
19944993630,4cyclictest25-21ksoftirqd/100:21:511
19944993629,5cyclictest25-21ksoftirqd/119:41:061
19943993630,4cyclictest9-21ksoftirqd/020:51:490
19943993630,4cyclictest9-21ksoftirqd/019:24:080
19943993630,3cyclictest9-21ksoftirqd/020:24:590
19943993629,5cyclictest9-21ksoftirqd/021:29:270
19946993529,4cyclictest41-21ksoftirqd/323:13:453
1994699350,26cyclictest0-21swapper/300:15:223
1994699350,25cyclictest0-21swapper/320:32:253
1994599354,7cyclictest33-21ksoftirqd/220:05:162
19945993531,3cyclictest33-21ksoftirqd/223:05:122
19944993530,3cyclictest25-21ksoftirqd/123:22:571
19944993529,4cyclictest25-21ksoftirqd/123:59:561
19944993529,4cyclictest25-21ksoftirqd/123:28:471
19943993530,3cyclictest9-21ksoftirqd/000:05:100
19946993428,4cyclictest41-21ksoftirqd/322:40:393
19946993428,4cyclictest41-21ksoftirqd/321:41:383
1994699341,30cyclictest15567-21cut22:15:143
1994699341,30cyclictest15567-21cut22:15:143
1994599346,14cyclictest31508-21if_enp1s023:50:162
1994599344,7cyclictest33-21ksoftirqd/223:32:222
19945993428,4cyclictest33-21ksoftirqd/223:04:532
19945993428,4cyclictest33-21ksoftirqd/220:01:332
19945993428,4cyclictest33-21ksoftirqd/200:09:402
19944993429,3cyclictest25-21ksoftirqd/119:29:581
19944993429,3cyclictest25-21ksoftirqd/100:30:171
19944993428,4cyclictest25-21ksoftirqd/123:49:131
19944993428,4cyclictest25-21ksoftirqd/123:43:561
19944993428,4cyclictest25-21ksoftirqd/122:34:351
19944993428,4cyclictest25-21ksoftirqd/121:57:331
19944993428,4cyclictest25-21ksoftirqd/121:52:311
19944993428,4cyclictest25-21ksoftirqd/120:50:531
19944993428,4cyclictest25-21ksoftirqd/120:34:481
19944993428,4cyclictest25-21ksoftirqd/120:24:221
19944993427,4cyclictest25-21ksoftirqd/121:31:051
19943993428,4cyclictest9-21ksoftirqd/022:28:260
19943993428,4cyclictest9-21ksoftirqd/021:24:060
19943993428,4cyclictest9-21ksoftirqd/021:04:170
19943993428,4cyclictest9-21ksoftirqd/021:04:160
19943993428,4cyclictest9-21ksoftirqd/020:00:100
19943993428,4cyclictest9-21ksoftirqd/019:43:400
19943993428,4cyclictest9-21ksoftirqd/019:10:430
19943993428,4cyclictest9-21ksoftirqd/000:25:590
19946993327,4cyclictest41-21ksoftirqd/323:42:533
19946993327,4cyclictest41-21ksoftirqd/322:58:203
19946993327,4cyclictest41-21ksoftirqd/321:56:503
19946993321,10cyclictest41-21ksoftirqd/319:58:283
1994699331,18cyclictest0-21swapper/320:25:183
19945993328,3cyclictest33-21ksoftirqd/222:09:032
19945993328,3cyclictest33-21ksoftirqd/221:48:122
19945993328,3cyclictest33-21ksoftirqd/219:45:592
19945993328,3cyclictest33-21ksoftirqd/200:23:372
19945993327,4cyclictest33-21ksoftirqd/223:47:582
19945993327,4cyclictest33-21ksoftirqd/220:30:482
19945993327,4cyclictest33-21ksoftirqd/200:18:312
19944993328,3cyclictest25-21ksoftirqd/100:07:381
19944993327,4cyclictest25-21ksoftirqd/121:35:581
19944993327,4cyclictest25-21ksoftirqd/120:28:481
19944993327,4cyclictest25-21ksoftirqd/120:10:381
19944993327,4cyclictest25-21ksoftirqd/120:01:471
19944993327,3cyclictest25-21ksoftirqd/119:45:101
19944993326,5cyclictest25-21ksoftirqd/119:13:051
19944993326,4cyclictest25-21ksoftirqd/120:07:241
19943993327,4cyclictest9-21ksoftirqd/023:15:160
19943993327,4cyclictest9-21ksoftirqd/022:02:410
19943993327,4cyclictest9-21ksoftirqd/021:45:370
19943993327,4cyclictest9-21ksoftirqd/021:40:000
19943993327,4cyclictest9-21ksoftirqd/020:55:020
19943993312,17cyclictest17413-21sshd20:06:450
19946993226,4cyclictest41-21ksoftirqd/300:00:343
19946993214,15cyclictest413-21cron22:35:003
19946993214,15cyclictest2808-21/usr/sbin/munin21:50:123
1994699320,29cyclictest0-21swapper/323:25:003
1994699320,18cyclictest0-21swapper/322:50:173
1994699320,17cyclictest0-21swapper/320:55:283
19945993227,3cyclictest33-21ksoftirqd/222:04:552
19945993227,3cyclictest33-21ksoftirqd/220:35:112
19945993226,4cyclictest33-21ksoftirqd/222:58:232
19945993226,4cyclictest33-21ksoftirqd/222:53:102
19945993226,4cyclictest33-21ksoftirqd/222:33:162
19945993226,4cyclictest33-21ksoftirqd/220:42:032
19945993226,4cyclictest33-21ksoftirqd/220:26:272
19945993226,4cyclictest33-21ksoftirqd/220:10:102
19945993226,4cyclictest33-21ksoftirqd/219:58:202
19945993225,4cyclictest33-21ksoftirqd/200:10:362
19944993227,3cyclictest25-21ksoftirqd/123:51:231
19944993227,3cyclictest25-21ksoftirqd/120:40:121
19944993226,4cyclictest25-21ksoftirqd/121:11:481
19944993226,4cyclictest25-21ksoftirqd/100:18:261
19944993226,4cyclictest25-21ksoftirqd/100:00:531
19944993225,4cyclictest25-21ksoftirqd/120:17:041
19944993225,4cyclictest25-21ksoftirqd/119:58:381
1994399329,3cyclictest22852-21seq00:35:420
19943993227,3cyclictest9-21ksoftirqd/022:30:420
19943993226,4cyclictest9-21ksoftirqd/022:42:330
19943993226,4cyclictest9-21ksoftirqd/021:55:070
19943993226,4cyclictest9-21ksoftirqd/021:44:000
19943993226,4cyclictest9-21ksoftirqd/019:16:330
19943993226,4cyclictest9-21ksoftirqd/000:02:280
19943993225,5cyclictest9-21ksoftirqd/000:33:130
19943993225,4cyclictest9-21ksoftirqd/020:45:070
138491320,1ptp4l391rcuc/319:12:093
45922310,7sleep01994399cyclictest22:55:200
19946993125,4cyclictest41-21ksoftirqd/320:53:043
19946993125,4cyclictest41-21ksoftirqd/320:10:443
19946993125,4cyclictest41-21ksoftirqd/319:42:363
1994599313,18cyclictest23021-21grep20:20:112
19945993125,4cyclictest33-21ksoftirqd/223:42:042
19945993125,4cyclictest33-21ksoftirqd/222:45:362
19945993125,4cyclictest33-21ksoftirqd/222:35:412
19945993125,4cyclictest33-21ksoftirqd/221:35:432
19945993125,4cyclictest33-21ksoftirqd/221:21:352
19945993125,4cyclictest33-21ksoftirqd/221:15:092
19945993124,5cyclictest33-21ksoftirqd/220:49:452
19944993125,4cyclictest25-21ksoftirqd/122:57:021
19944993125,4cyclictest25-21ksoftirqd/121:41:161
19944993125,4cyclictest25-21ksoftirqd/121:05:411
19944993125,4cyclictest25-21ksoftirqd/119:21:511
19944993125,4cyclictest25-21ksoftirqd/100:11:511
19944993124,4cyclictest25-21ksoftirqd/123:11:141
19943993126,3cyclictest9-21ksoftirqd/023:31:050
19943993126,3cyclictest9-21ksoftirqd/023:07:180
19943993125,4cyclictest9-21ksoftirqd/023:04:190
19943993125,4cyclictest9-21ksoftirqd/022:23:510
19943993125,4cyclictest9-21ksoftirqd/021:14:110
19943993125,4cyclictest9-21ksoftirqd/020:36:400
19943993125,4cyclictest9-21ksoftirqd/020:34:510
19943993125,4cyclictest9-21ksoftirqd/019:51:030
19943993125,4cyclictest9-21ksoftirqd/019:25:040
19943993125,3cyclictest9-21ksoftirqd/023:50:040
19943993125,3cyclictest9-21ksoftirqd/020:27:170
19943993111,3cyclictest5576-21cstates19:45:120
19943993110,3cyclictest18584-21expr23:25:140
19946993025,3cyclictest41-21ksoftirqd/319:34:063
19946993024,4cyclictest41-21ksoftirqd/300:20:243
1994699301,25cyclictest6445-21awk23:00:163
1994699300,27cyclictest15234-21latency_hist20:05:003
19945993025,3cyclictest33-21ksoftirqd/223:59:152
19945993024,4cyclictest33-21ksoftirqd/222:40:582
19945993024,4cyclictest33-21ksoftirqd/220:57:052
19945993024,4cyclictest33-21ksoftirqd/219:39:052
19944993025,3cyclictest25-21ksoftirqd/123:18:481
19944993024,4cyclictest25-21ksoftirqd/121:18:421
1994399307,3cyclictest14668-21timerwakeupswit21:05:250
19943993025,3cyclictest9-21ksoftirqd/023:50:000
19943993025,3cyclictest9-21ksoftirqd/020:16:180
19943993025,3cyclictest9-21ksoftirqd/000:10:140
19943993024,4cyclictest9-21ksoftirqd/023:59:590
19943993024,4cyclictest9-21ksoftirqd/022:46:140
19943993024,4cyclictest9-21ksoftirqd/020:10:320
19943993024,3cyclictest9-21ksoftirqd/022:07:300
19943993024,3cyclictest11034-21irqrtprio19:55:190
19943993023,5cyclictest9-21ksoftirqd/021:35:000
19943993012,15cyclictest27515-21sendmail22:39:590
1994699290,28cyclictest26524-21kworker/3:123:56:043
1994699290,27cyclictest14388-21cut21:05:233
19945992924,3cyclictest33-21ksoftirqd/223:16:512
19945992923,4cyclictest33-21ksoftirqd/221:55:052
19945992923,4cyclictest33-21ksoftirqd/221:14:532
19945992923,4cyclictest33-21ksoftirqd/220:16:442
19944992924,3cyclictest25-21ksoftirqd/123:01:551
19944992924,3cyclictest25-21ksoftirqd/122:48:421
19944992923,4cyclictest25-21ksoftirqd/122:27:331
19944992923,4cyclictest25-21ksoftirqd/121:46:531
19944992923,4cyclictest25-21ksoftirqd/121:26:031
19944992923,4cyclictest25-21ksoftirqd/120:39:341
1994399298,4cyclictest13085-21cpuspeed_turbos22:10:120
19943992924,3cyclictest9-21ksoftirqd/023:10:580
19943992923,4cyclictest9-21ksoftirqd/022:52:070
19943992923,4cyclictest9-21ksoftirqd/019:30:210
19943992911,4cyclictest15526-21seq00:21:300
19943992911,15cyclictest1858-21pluginstate20:40:240
1994599282,5cyclictest33-21ksoftirqd/200:00:242
19945992823,3cyclictest33-21ksoftirqd/223:37:432
19945992822,4cyclictest33-21ksoftirqd/219:42:022
19945992822,3cyclictest33-21ksoftirqd/219:21:102
1994599280,16cyclictest32496-21latency_hist19:35:002
19944992823,3cyclictest25-21ksoftirqd/122:08:481
19944992823,3cyclictest25-21ksoftirqd/119:39:011
19944992823,3cyclictest25-21ksoftirqd/119:18:501
19944992822,4cyclictest25-21ksoftirqd/122:40:101
19944992822,4cyclictest25-21ksoftirqd/122:17:261
19944992822,4cyclictest25-21ksoftirqd/122:17:261
19944992822,4cyclictest25-21ksoftirqd/120:49:251
19944992821,5cyclictest25-21ksoftirqd/100:39:481
19943992822,4cyclictest9-21ksoftirqd/022:18:060
19943992822,4cyclictest9-21ksoftirqd/022:18:060
1994599273,6cyclictest33-21ksoftirqd/219:29:152
19945992722,3cyclictest33-21ksoftirqd/222:12:482
19945992722,3cyclictest33-21ksoftirqd/221:53:122
19945992722,3cyclictest33-21ksoftirqd/221:01:342
19945992722,3cyclictest33-21ksoftirqd/221:01:342
19945992722,3cyclictest33-21ksoftirqd/219:50:112
19945992721,4cyclictest33-21ksoftirqd/200:29:342
19944992721,4cyclictest25-21ksoftirqd/122:23:001
1994399277,3cyclictest1134-21cut19:35:180
19943992713,12cyclictest23295-21apt-config23:35:010
1994699261,22cyclictest27149-21vmstat22:35:303
1994599263,7cyclictest33-21ksoftirqd/222:29:042
19944992621,3cyclictest25-21ksoftirqd/120:58:471
19944992620,4cyclictest25-21ksoftirqd/122:53:421
1994399267,3cyclictest17332-21mailstats23:20:250
1994399266,3cyclictest28112-21taskset23:44:330
19943992621,3cyclictest9-21ksoftirqd/021:51:180
19945992520,3cyclictest33-21ksoftirqd/221:34:552
1994599245,17cyclictest0-21swapper/222:15:402
1994599245,17cyclictest0-21swapper/222:15:402
1994599240,10cyclictest1319-21snmpd00:35:592
19945992318,3cyclictest33-21ksoftirqd/222:20:102
19944992318,3cyclictest25-21ksoftirqd/100:26:121
19944992216,4cyclictest25-21ksoftirqd/121:21:291
19944992015,3cyclictest25-21ksoftirqd/122:35:371
19944992015,3cyclictest10969-21df_inode21:00:131
19944992015,3cyclictest10969-21df_inode21:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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