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2025-12-07 - 10:17
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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 Sun Dec 07, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
55342207174,22sleep20-21swapper/219:07:082
136691206172,23phc2sys0-21swapper/319:07:353
57242205172,22sleep10-21swapper/119:09:311
57612204174,20sleep00-21swapper/019:09:590
674621690,6sleep1605699cyclictest19:10:181
1156021630,6sleep2605799cyclictest19:20:192
136591730,1ptp4l391rcuc/321:02:463
204992670,4sleep220503-21irqrtprio23:00:192
252722640,5sleep09-21ksoftirqd/022:02:560
148152620,2sleep20-21swapper/223:55:162
303572600,1sleep30-21swapper/321:05:233
605699574,51cyclictest826-21kworker/1:021:42:551
605599574,17cyclictest726-21awk23:25:210
204472570,4sleep1241ktimersoftd/100:05:251
136591570,1ptp4l24660-21/usr/sbin/munin23:10:153
6056995514,39cyclictest23310-21kworker/1:019:25:441
136591550,1ptp4l401ktimersoftd/322:39:003
605599543,11cyclictest26531-21apt-config00:20:010
605599523,15cyclictest5727-21sed20:15:200
605599523,15cyclictest18802-21cat21:50:150
136591500,1ptp4l391rcuc/320:32:473
175842490,2sleep30-21swapper/321:45:263
175842490,2sleep30-21swapper/321:45:263
605599486,10cyclictest7009-21apt23:40:110
605599483,14cyclictest1982-21apt-get23:30:120
576324534,6sleep20-21swapper/219:10:012
136591440,0ptp4l401ktimersoftd/319:50:183
605599433,8cyclictest16710-21sshd20:39:440
605599433,15cyclictest24908-21cstates23:10:140
605599433,10cyclictest17719-21uptime21:45:280
605599433,10cyclictest17719-21uptime21:45:280
605599432,7cyclictest13040-21meminfo23:50:210
245312430,1sleep30-21swapper/319:45:283
605599424,15cyclictest15911-21timerandwakeup23:55:250
605599423,8cyclictest28833-21apt-get21:05:010
605599412,7cyclictest29348-21df00:25:170
136591410,0ptp4l401ktimersoftd/300:38:453
605599402,7cyclictest26359-21meminfo19:50:210
136591400,0ptp4l401ktimersoftd/323:00:223
605699398,29cyclictest3618-21kworker/1:120:10:541
605599394,7cyclictest12761-21hddtemp_smartct20:30:190
6056993811,26cyclictest826-21kworker/1:021:31:051
605599383,7cyclictest25007-21irqstats00:15:200
605599383,7cyclictest2362-21irqstats00:35:190
605599382,7cyclictest11051-21meminfo22:40:210
605599373,7cyclictest15258-21df22:50:140
136591370,0ptp4l401ktimersoftd/320:05:133
6058993631,3cyclictest41-21ksoftirqd/319:38:233
605599362,7cyclictest7095-21iostat_ios21:25:190
136591360,0ptp4l401ktimersoftd/322:15:433
136591360,0ptp4l401ktimersoftd/322:15:433
6056993517,17cyclictest23310-21kworker/1:019:47:051
605599353,7cyclictest32450-21memory00:30:220
605599352,8cyclictest10094-21hddtemp_smartct23:45:170
6057993428,4cyclictest33-21ksoftirqd/222:31:072
6056993428,4cyclictest25-21ksoftirqd/100:28:241
605599342,7cyclictest9105-21df21:30:170
6058993327,4cyclictest41-21ksoftirqd/322:53:353
6058993313,17cyclictest12176-21basename22:45:003
6057993327,4cyclictest33-21ksoftirqd/223:52:542
6057993327,4cyclictest33-21ksoftirqd/222:54:292
6057993327,4cyclictest33-21ksoftirqd/222:23:172
6057993327,4cyclictest33-21ksoftirqd/221:44:012
6057993327,4cyclictest33-21ksoftirqd/221:22:102
6057993327,4cyclictest33-21ksoftirqd/219:40:562
6056993327,4cyclictest25-21ksoftirqd/122:15:571
6056993327,4cyclictest25-21ksoftirqd/122:15:571
6056993327,4cyclictest25-21ksoftirqd/119:50:391
6056993314,16cyclictest26719-21memory22:05:231
6056993310,3cyclictest17244-21ls22:55:001
605699330,2cyclictest121rcu_preempt23:51:521
605599331,7cyclictest2312-21iostat21:15:180
605599331,7cyclictest14293-21meminfo19:25:220
51698330,7rtkit-daemon0-21swapper/222:49:222
51698330,7rtkit-daemon0-21swapper/222:49:222
6058993227,3cyclictest41-21ksoftirqd/319:33:483
6058993226,4cyclictest41-21ksoftirqd/323:37:553
6058993226,4cyclictest41-21ksoftirqd/322:49:173
6058993226,4cyclictest41-21ksoftirqd/322:49:173
6058993226,4cyclictest41-21ksoftirqd/322:07:373
6058993226,4cyclictest41-21ksoftirqd/319:56:073
6058993226,4cyclictest41-21ksoftirqd/319:29:343
6058993225,4cyclictest41-21ksoftirqd/323:28:013
6058993210,20cyclictest0-21swapper/320:11:043
6057993226,4cyclictest33-21ksoftirqd/220:16:042
6057993225,5cyclictest33-21ksoftirqd/220:09:102
6056993227,3cyclictest25-21ksoftirqd/123:10:121
6056993226,4cyclictest25-21ksoftirqd/122:11:281
6056993226,4cyclictest25-21ksoftirqd/121:19:171
6056993226,4cyclictest25-21ksoftirqd/120:44:101
6056993226,4cyclictest25-21ksoftirqd/120:36:281
6056993225,4cyclictest25-21ksoftirqd/100:10:121
6056993213,16cyclictest25352-21memory20:55:241
6056993210,3cyclictest20417-21cut20:45:221
605599322,6cyclictest19876-21df20:45:160
6055993226,4cyclictest9-21ksoftirqd/019:58:360
6055993226,4cyclictest9-21ksoftirqd/000:07:210
605599321,7cyclictest29807-21df_inode23:20:160
136591320,0ptp4l401ktimersoftd/322:25:143
136591320,0ptp4l401ktimersoftd/320:22:463
136591320,0ptp4l401ktimersoftd/319:20:133
6058993126,3cyclictest41-21ksoftirqd/321:57:193
6058993126,3cyclictest41-21ksoftirqd/321:54:443
6058993126,3cyclictest41-21ksoftirqd/320:28:443
6058993125,4cyclictest41-21ksoftirqd/323:54:323
6058993125,4cyclictest41-21ksoftirqd/322:30:113
6058993125,4cyclictest41-21ksoftirqd/321:40:483
6057993126,3cyclictest33-21ksoftirqd/223:25:002
6057993126,3cyclictest33-21ksoftirqd/221:37:522
6057993126,3cyclictest33-21ksoftirqd/220:50:592
6057993125,4cyclictest33-21ksoftirqd/220:04:242
6057993125,4cyclictest33-21ksoftirqd/219:36:552
6057993125,4cyclictest33-21ksoftirqd/219:30:412
6056993125,4cyclictest25-21ksoftirqd/123:39:371
6056993125,4cyclictest25-21ksoftirqd/122:43:211
6056993125,4cyclictest25-21ksoftirqd/122:34:461
605699311,29cyclictest23310-21kworker/1:019:40:451
6056993111,4cyclictest25445-21latency_hist22:05:001
6056993111,3cyclictest1197-21sed22:20:201
605599315,11cyclictest10476-21iostat20:25:190
6055993126,3cyclictest9-21ksoftirqd/022:05:120
6055993125,4cyclictest9-21ksoftirqd/022:59:330
6055993125,4cyclictest9-21ksoftirqd/022:25:320
6055993125,4cyclictest9-21ksoftirqd/021:41:110
6055993125,4cyclictest9-21ksoftirqd/021:13:090
6055993125,4cyclictest9-21ksoftirqd/020:55:080
6055993125,4cyclictest9-21ksoftirqd/020:23:480
6055993125,4cyclictest9-21ksoftirqd/019:40:540
176552310,5sleep317656-21fschecks_count20:40:193
6058993025,3cyclictest41-21ksoftirqd/322:23:303
6058993025,3cyclictest41-21ksoftirqd/319:11:533
6058993024,4cyclictest41-21ksoftirqd/322:58:443
6058993024,4cyclictest41-21ksoftirqd/322:02:483
6058993024,4cyclictest41-21ksoftirqd/320:52:153
6058993024,4cyclictest41-21ksoftirqd/319:16:423
6058993024,4cyclictest41-21ksoftirqd/300:08:483
6057993025,3cyclictest33-21ksoftirqd/221:51:312
6057993024,4cyclictest33-21ksoftirqd/223:15:472
6057993024,4cyclictest33-21ksoftirqd/223:06:532
6057993024,4cyclictest33-21ksoftirqd/221:31:142
6057993024,4cyclictest33-21ksoftirqd/221:16:082
6057993024,4cyclictest33-21ksoftirqd/220:56:102
605699309,3cyclictest5966-21sed20:15:201
605699308,20cyclictest22242-21cpuspeed_turbos23:05:131
605699306,4cyclictest0-21swapper/123:20:171
6056993025,3cyclictest25-21ksoftirqd/122:25:391
6056993025,3cyclictest18104-21cron21:50:001
6056993025,3cyclictest18104-21cron21:50:001
6056993024,4cyclictest25-21ksoftirqd/121:29:591
6056993024,4cyclictest25-21ksoftirqd/100:19:531
605699301,28cyclictest2564-21kworker/1:223:16:051
605599304,14cyclictest9149-21ls22:35:260
136591300,0ptp4l401ktimersoftd/323:06:373
6058992924,3cyclictest41-21ksoftirqd/321:33:393
6058992923,4cyclictest41-21ksoftirqd/321:39:083
6058992923,4cyclictest41-21ksoftirqd/321:23:233
6058992923,4cyclictest41-21ksoftirqd/300:10:083
6058992922,4cyclictest41-21ksoftirqd/323:59:373
6057992924,3cyclictest33-21ksoftirqd/223:39:022
6057992924,3cyclictest33-21ksoftirqd/222:57:232
6057992924,3cyclictest33-21ksoftirqd/222:03:502
6057992924,3cyclictest33-21ksoftirqd/200:28:072
6057992923,4cyclictest33-21ksoftirqd/223:29:392
6057992923,4cyclictest33-21ksoftirqd/223:11:022
6057992923,4cyclictest33-21ksoftirqd/222:28:262
6057992923,4cyclictest33-21ksoftirqd/222:12:132
6057992923,4cyclictest33-21ksoftirqd/220:23:142
6057992923,4cyclictest33-21ksoftirqd/219:18:032
6057992923,4cyclictest33-21ksoftirqd/200:09:482
605699298,3cyclictest8289-21irqrtprio20:20:191
605699298,3cyclictest24136-21sed20:55:011
605699297,3cyclictest32517-21irqrtprio21:10:221
605699292,5cyclictest27699-21apt-get19:55:141
6056992924,3cyclictest25-21ksoftirqd/123:45:301
6056992924,3cyclictest25-21ksoftirqd/100:24:491
6056992923,4cyclictest25-21ksoftirqd/122:45:341
6056992923,4cyclictest25-21ksoftirqd/122:45:331
6056992923,4cyclictest25-21ksoftirqd/121:36:051
6056992923,4cyclictest25-21ksoftirqd/100:37:311
6056992910,3cyclictest21854-21dump-pmu-power23:04:591
6055992923,4cyclictest9-21ksoftirqd/023:15:450
6055992923,4cyclictest9-21ksoftirqd/023:08:470
6055992923,4cyclictest9-21ksoftirqd/022:12:270
6055992923,4cyclictest9-21ksoftirqd/000:14:360
136591290,8ptp4l401ktimersoftd/323:41:043
136591290,0ptp4l401ktimersoftd/321:11:583
136591290,0ptp4l401ktimersoftd/319:40:353
6058992822,4cyclictest41-21ksoftirqd/321:16:053
6058992822,4cyclictest41-21ksoftirqd/320:59:253
6058992822,4cyclictest41-21ksoftirqd/320:01:123
6057992823,3cyclictest33-21ksoftirqd/220:26:192
6057992822,4cyclictest33-21ksoftirqd/222:17:382
6057992822,4cyclictest33-21ksoftirqd/222:17:382
6057992822,4cyclictest33-21ksoftirqd/219:47:382
605699289,3cyclictest7588-21if_enp4s023:40:171
605699288,3cyclictest32098-21cpuspeed_turbos23:25:121
605699288,3cyclictest22442-21cat21:55:251
605699283,8cyclictest16972-21cstates00:00:141
6056992823,3cyclictest25-21ksoftirqd/122:35:101
6056992823,3cyclictest25-21ksoftirqd/120:25:111
6056992822,4cyclictest25-21ksoftirqd/121:52:341
6056992822,4cyclictest25-21ksoftirqd/120:06:501
605699281,5cyclictest1889-21Xorg19:16:581
6055992822,4cyclictest9-21ksoftirqd/020:53:120
6055992822,4cyclictest9-21ksoftirqd/020:10:160
6055992822,4cyclictest9-21ksoftirqd/020:09:040
6055992822,4cyclictest9-21ksoftirqd/019:23:420
136591280,0ptp4l401ktimersoftd/320:38:053
6058992722,3cyclictest41-21ksoftirqd/300:18:403
6058992721,4cyclictest41-21ksoftirqd/323:32:103
6057992722,3cyclictest33-21ksoftirqd/221:06:432
6057992722,3cyclictest33-21ksoftirqd/200:14:412
6057992721,4cyclictest33-21ksoftirqd/223:48:172
6057992721,4cyclictest33-21ksoftirqd/221:49:072
6057992721,4cyclictest33-21ksoftirqd/221:49:062
6057992721,4cyclictest33-21ksoftirqd/220:47:202
6057992721,4cyclictest33-21ksoftirqd/219:53:442
6057992721,4cyclictest33-21ksoftirqd/200:19:212
6056992721,4cyclictest25-21ksoftirqd/123:34:081
6056992721,4cyclictest25-21ksoftirqd/120:03:491
6055992722,3cyclictest9-21ksoftirqd/019:12:270
6055992722,3cyclictest9-21ksoftirqd/000:00:350
6055992721,4cyclictest9-21ksoftirqd/021:36:410
6055992721,4cyclictest9-21ksoftirqd/021:03:270
136591270,0ptp4l401ktimersoftd/300:28:193
136591270,0ptp4l401ktimersoftd/300:00:363
6058992621,3cyclictest41-21ksoftirqd/323:49:583
6058992621,3cyclictest41-21ksoftirqd/320:46:433
6058992620,4cyclictest41-21ksoftirqd/320:15:133
6057992621,3cyclictest33-21ksoftirqd/223:43:402
6057992621,3cyclictest33-21ksoftirqd/222:40:422
6057992621,3cyclictest33-21ksoftirqd/221:29:502
6057992621,3cyclictest33-21ksoftirqd/221:11:302
6057992621,3cyclictest33-21ksoftirqd/219:25:352
6057992620,4cyclictest33-21ksoftirqd/222:07:192
6057992620,4cyclictest33-21ksoftirqd/221:57:122
605699268,3cyclictest27321-21if_err_enp4s021:00:191
605699268,3cyclictest15620-21ps23:55:221
605699265,3cyclictest0-21swapper/119:30:251
605599263,7cyclictest20750-21meminfo23:00:210
6055992621,3cyclictest9-21ksoftirqd/020:00:040
6055992620,4cyclictest9-21ksoftirqd/019:32:130
136591260,0ptp4l401ktimersoftd/321:29:573
6058992520,3cyclictest41-21ksoftirqd/300:21:123
6058992519,4cyclictest41-21ksoftirqd/323:21:023
6057992520,3cyclictest33-21ksoftirqd/221:00:562
6057992520,3cyclictest33-21ksoftirqd/220:13:482
6057992520,3cyclictest33-21ksoftirqd/219:59:452
6057992520,3cyclictest33-21ksoftirqd/200:37:092
6057992520,3cyclictest33-21ksoftirqd/200:30:532
6057992520,3cyclictest33-21ksoftirqd/200:04:212
6057992519,4cyclictest33-21ksoftirqd/220:41:422
6057992519,4cyclictest33-21ksoftirqd/220:34:572
6056992520,3cyclictest25-21ksoftirqd/121:20:361
6056992520,3cyclictest25-21ksoftirqd/121:08:131
6056992519,4cyclictest25-21ksoftirqd/122:58:261
605599254,7cyclictest17730-21hddtemp_smartct20:40:200
605599253,7cyclictest13631-21meminfo22:45:200
605599253,7cyclictest13631-21meminfo22:45:200
6055992520,3cyclictest9-21ksoftirqd/022:31:570
6057992419,3cyclictest33-21ksoftirqd/223:31:272
6056992418,4cyclictest25-21ksoftirqd/119:23:101
6055992419,3cyclictest9-21ksoftirqd/021:22:000
136591240,1ptp4l401ktimersoftd/300:32:123
136591240,0ptp4l401ktimersoftd/323:15:163
6058992317,4cyclictest41-21ksoftirqd/322:11:213
6056992318,3cyclictest25-21ksoftirqd/120:33:281
6056992318,3cyclictest25-21ksoftirqd/119:36:391
6056992318,3cyclictest25-21ksoftirqd/100:32:211
6055992318,3cyclictest9-21ksoftirqd/022:23:240
6055992318,3cyclictest9-21ksoftirqd/019:48:090
6055992317,4cyclictest9-21ksoftirqd/019:37:010
6057992217,3cyclictest33-21ksoftirqd/222:39:372
6057992217,3cyclictest33-21ksoftirqd/220:35:222
6055992217,3cyclictest9-21ksoftirqd/023:35:590
6055992216,4cyclictest9-21ksoftirqd/022:17:240
6055992216,4cyclictest9-21ksoftirqd/022:17:240
605599201,5cyclictest0-21swapper/019:15:120
6055992015,3cyclictest9-21ksoftirqd/021:59:110
6057991914,3cyclictest27330-21interrupts00:20:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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