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2026-06-22 - 22:43
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot6.osadl.org (updated Mon Jun 22, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365321660,3sleep33267499cyclictest11:38:183
2386621510,5sleep33267499cyclictest11:26:343
106891970,4ptp4l401ktimersoftd/308:54:593
163252630,2sleep10-21swapper/113:31:221
301912620,2sleep30-21swapper/311:00:003
301912620,2sleep30-21swapper/311:00:003
16562620,2sleep30-21swapper/313:48:143
9412610,2sleep30-21swapper/312:08:213
32654996013,25cyclictest18800-21expr11:21:320
106891600,1ptp4l401ktimersoftd/313:46:033
106891570,1ptp4l401ktimersoftd/314:01:233
106891570,1ptp4l401ktimersoftd/313:59:403
76032560,3sleep27599-21munin-run12:16:192
106891550,1ptp4l401ktimersoftd/311:15:213
106891540,1ptp4l401ktimersoftd/312:19:463
6052530,1sleep10-21swapper/108:56:291
6052530,1sleep10-21swapper/108:56:291
266262520,2sleep30-21swapper/314:14:203
304142514,34sleep20-21swapper/208:51:222
106891490,3ptp4l27280-21kworker/3:012:23:223
106891480,1ptp4l401ktimersoftd/314:10:573
106891460,2ptp4l961-21kworker/3:111:51:253
3265499452,36cyclictest6883-21apt-get13:21:340
3265499442,35cyclictest21670-21apt-get13:36:330
32666994232,6cyclictest33-21ksoftirqd/211:51:332
3265499422,33cyclictest8777-21apt-get11:11:310
324752425,10sleep00-21swapper/008:55:240
106891420,1ptp4l401ktimersoftd/311:41:403
3265999415,29cyclictest0-21swapper/113:21:341
3265999415,10cyclictest13599-21ssh14:01:341
3265499410,3cyclictest16116-21/usr/sbin/munin09:26:310
106891400,1ptp4l401ktimersoftd/311:31:233
106891400,10ptp4l401ktimersoftd/310:32:073
32659993912,4cyclictest5423-21fschecks_time12:46:361
3265499393,28cyclictest24683-21apt-get13:06:300
3265499392,31cyclictest3518-21apt-get09:01:280
3265499392,31cyclictest3518-21apt-get09:01:280
3265499392,31cyclictest13217-21apt-get09:21:260
3265499392,30cyclictest5823-21apt-get11:41:280
3265499392,29cyclictest8270-21apt-get09:11:280
32654993916,20cyclictest22778-21cpuspeed_turbos12:31:320
3265499391,3cyclictest12432-21tune2fs10:26:320
32654993913,22cyclictest8310-21latency_hist13:56:220
3223023915,13sleep125-21ksoftirqd/108:52:101
106891390,1ptp4l401ktimersoftd/313:18:243
106891390,1ptp4l401ktimersoftd/313:13:353
106891390,1ptp4l401ktimersoftd/312:33:563
106891390,1ptp4l401ktimersoftd/311:09:063
3265999381,13cyclictest31372-21ssh11:01:301
3265499383,29cyclictest26452-21apt-get10:56:310
3265499383,29cyclictest26452-21apt-get10:56:310
3265499382,32cyclictest0-21swapper/012:26:300
3265499382,31cyclictest3870-21apt-get11:06:290
3265499382,31cyclictest28419-21apt-get11:31:290
3265499382,29cyclictest5034-21apt-get12:46:320
32654993814,21cyclictest20544-21expr09:36:300
3265499381,33cyclictest0-21swapper/010:16:290
3265499380,4cyclictest2397-21tail14:21:500
3265499380,4cyclictest2397-21tail14:21:500
3265499380,4cyclictest2263-21ssh13:49:170
3265499380,4cyclictest17341-21ssh11:51:460
3265499380,3cyclictest14742-21/usr/sbin/munin12:21:510
106891380,1ptp4l401ktimersoftd/314:23:533
106891380,1ptp4l401ktimersoftd/314:23:533
106891380,1ptp4l401ktimersoftd/313:41:073
106891380,1ptp4l401ktimersoftd/313:33:553
106891380,1ptp4l401ktimersoftd/313:22:323
106891380,1ptp4l401ktimersoftd/312:54:263
106891380,1ptp4l401ktimersoftd/312:30:393
106891380,1ptp4l401ktimersoftd/311:59:313
106891380,1ptp4l401ktimersoftd/310:01:463
106891380,0ptp4l401ktimersoftd/312:39:323
32666993728,5cyclictest33-21ksoftirqd/213:31:322
3265999377,8cyclictest10524-21grep11:11:481
3265999372,7cyclictest26452-21apt-get10:56:311
3265999372,7cyclictest26452-21apt-get10:56:311
3265999371,9cyclictest20335-21apt-get09:36:281
32659993712,3cyclictest30116-21ls09:56:311
32659993711,4cyclictest834-21irqrtprio10:01:351
3265499372,29cyclictest25679-21apt-get12:01:310
3265499372,28cyclictest21597-21apt-get10:46:300
32654993717,17cyclictest9-21ksoftirqd/009:31:520
32654993714,20cyclictest16434-21sh14:03:350
3265499371,32cyclictest0-21swapper/014:16:340
32654993713,21cyclictest26028-21diskmemload11:26:510
3265499371,31cyclictest31361-21apt-get11:01:300
3265499371,31cyclictest0-21swapper/010:01:280
32654993711,23cyclictest15375-21sed10:31:370
3265499370,4cyclictest2604-21ssh12:42:550
3265499370,4cyclictest2604-21ssh12:42:550
3265499370,4cyclictest23659-21fschecks_count14:11:370
3265499370,2cyclictest65882sleep010:13:360
140402370,19sleep232015-21kworker/u8:214:01:382
106891370,1ptp4l401ktimersoftd/314:17:513
106891370,1ptp4l401ktimersoftd/313:54:023
106891370,1ptp4l401ktimersoftd/313:05:553
106891370,1ptp4l401ktimersoftd/312:56:243
106891370,1ptp4l401ktimersoftd/312:44:153
106891370,1ptp4l401ktimersoftd/312:44:153
106891370,1ptp4l401ktimersoftd/312:12:243
106891370,1ptp4l401ktimersoftd/311:18:143
106891370,1ptp4l401ktimersoftd/311:05:423
106891370,1ptp4l401ktimersoftd/309:16:393
32666993626,5cyclictest33-21ksoftirqd/212:16:322
3265999366,5cyclictest3872-21ssh11:06:291
3265999363,7cyclictest25679-21apt-get12:01:301
3265999363,6cyclictest7322-21apt-get10:16:291
3265999362,7cyclictest17823-21apt-get12:26:301
3265999362,6cyclictest28218-21apt-get14:16:341
3265999361,7cyclictest21953-21diskstats13:36:351
32659993612,5cyclictest12535-21sed11:46:481
32659993611,4cyclictest2541-21cat10:06:291
3265499367,25cyclictest14586-21latency_hist12:56:210
3265499362,28cyclictest30040-21apt-get09:56:300
32654993613,20cyclictest8064-21latency_hist09:11:160
32654993613,20cyclictest28919-21cut09:51:400
32654993613,20cyclictest26028-21diskmemload12:57:290
3265499361,29cyclictest22701-21apt-get09:41:290
3265499360,4cyclictest28976-21ssh13:42:530
3265499360,3cyclictest10862-21ssh12:18:350
3265499360,3cyclictest0-21swapper/010:36:410
106891360,3ptp4l8686-21kworker/3:013:31:003
106891360,1ptp4l401ktimersoftd/312:04:253
106891360,1ptp4l401ktimersoftd/311:48:263
106891360,0ptp4l401ktimersoftd/311:23:253
32666993529,3cyclictest33-21ksoftirqd/212:26:202
32666993527,4cyclictest33-21ksoftirqd/213:46:332
3265999358,5cyclictest633-21taskset14:21:331
3265999358,5cyclictest633-21taskset14:21:331
3265999353,7cyclictest5835-21rm11:41:291
32659993513,3cyclictest17895-21/usr/sbin/munin09:31:441
32659993512,3cyclictest20878-21sh11:22:351
32659993510,4cyclictest26222-21grep09:46:371
32659993510,3cyclictest28394-21bc11:31:291
3265499357,24cyclictest16711-21cut13:31:340
3265499352,26cyclictest447-21apt-get08:56:280
3265499352,26cyclictest447-21apt-get08:56:280
3265499351,4cyclictest26028-21diskmemload13:28:200
3265499350,4cyclictest24226-21diskstats10:51:330
3265499350,3cyclictest987-21sshd10:44:570
3265499350,3cyclictest4727-21chrt13:18:200
3265499350,3cyclictest27572-21ssh12:36:310
106891350,3ptp4l8686-21kworker/3:013:08:413
32666993422,9cyclictest33-21ksoftirqd/213:51:442
3265999349,3cyclictest20785-21unixbench-2d10:41:461
3265999346,9cyclictest0-21swapper/113:00:251
3265999345,9cyclictest0-21swapper/112:15:581
3265999345,9cyclictest0-21swapper/112:09:181
3265999342,4cyclictest0-21swapper/109:11:281
3265999341,8cyclictest26544-21apt-get13:41:331
32659993413,4cyclictest25-21ksoftirqd/110:22:521
3265499344,27cyclictest10292-21timerandwakeup13:56:500
3265499340,4cyclictest2345-21mailstats11:36:420
3265499340,4cyclictest12274-21switchtime11:46:460
3265499340,3cyclictest7460-21ssh12:16:070
3265499340,3cyclictest23801-21ssh13:05:320
3265499340,3cyclictest1118-21ssh13:15:240
3265499340,2cyclictest26028-21diskmemload14:10:570
106891340,2ptp4l961-21kworker/3:109:15:313
106891340,1ptp4l401ktimersoftd/310:46:403
106891340,1ptp4l401ktimersoftd/310:06:283
32666993328,3cyclictest33-21ksoftirqd/213:36:262
32666993325,4cyclictest33-21ksoftirqd/213:26:372
3265999339,4cyclictest23862-21fschecks_count11:26:341
32659993314,3cyclictest23615-21latency09:41:371
32659993314,3cyclictest13585-21/usr/sbin/munin11:16:331
32659993310,3cyclictest1798-21cat12:41:491
32659993310,3cyclictest1798-21cat12:41:491
3265499336,23cyclictest11125-21fschecks_count09:16:310
3265499334,25cyclictest2533-21cstates10:06:290
3265499330,3cyclictest10911-21ptp4l10:21:400
3265499330,2cyclictest26028-21diskmemload11:19:420
106891330,0ptp4l401ktimersoftd/309:46:373
32666993227,3cyclictest33-21ksoftirqd/210:46:172
32666993226,3cyclictest33-21ksoftirqd/212:56:212
32666993226,3cyclictest33-21ksoftirqd/211:26:192
32666993222,8cyclictest33-21ksoftirqd/212:36:382
3265999329,4cyclictest198772sleep111:55:321
3265499328,21cyclictest26028-21diskmemload12:07:140
3265499328,21cyclictest25047-21apt-key09:46:170
32654993211,18cyclictest21035-21df11:56:330
106891320,1ptp4l401ktimersoftd/309:38:093
106891320,1ptp4l401ktimersoftd/308:56:323
106891320,1ptp4l401ktimersoftd/308:56:323
32674993125,3cyclictest41-21ksoftirqd/310:21:183
32666993126,3cyclictest33-21ksoftirqd/209:26:162
32666993125,3cyclictest33-21ksoftirqd/212:41:392
32666993125,3cyclictest33-21ksoftirqd/212:41:392
3266699310,3cyclictest121rcu_preempt14:21:382
3266699310,3cyclictest121rcu_preempt14:21:382
3265999318,3cyclictest0-21swapper/113:46:361
32659993110,3cyclictest26028-21diskmemload13:02:301
106891310,1ptp4l401ktimersoftd/312:50:443
106891310,1ptp4l401ktimersoftd/309:02:133
106891310,1ptp4l401ktimersoftd/309:02:133
32674993025,3cyclictest41-21ksoftirqd/309:21:313
32674993024,3cyclictest41-21ksoftirqd/309:56:333
32666993025,3cyclictest33-21ksoftirqd/212:36:202
32666993025,3cyclictest33-21ksoftirqd/210:56:182
32666993025,3cyclictest33-21ksoftirqd/210:01:352
32659993011,3cyclictest24167-21sh12:31:451
19182300,1sleep20-21swapper/213:16:302
106891300,1ptp4l401ktimersoftd/310:39:003
106891300,1ptp4l401ktimersoftd/309:56:083
32674992924,3cyclictest41-21ksoftirqd/310:11:343
32666992924,3cyclictest33-21ksoftirqd/214:11:412
32666992923,3cyclictest7968-21awk09:11:152
32666992923,3cyclictest33-21ksoftirqd/211:26:412
32666992923,3cyclictest33-21ksoftirqd/210:11:312
32666992923,3cyclictest33-21ksoftirqd/209:46:172
32659992910,3cyclictest25123-21unixbench_singl14:11:511
543522821,3sleep233-21ksoftirqd/211:06:462
32666992823,3cyclictest33-21ksoftirqd/214:11:222
32666992823,3cyclictest33-21ksoftirqd/211:11:312
32666992823,3cyclictest33-21ksoftirqd/210:46:322
32666992822,3cyclictest33-21ksoftirqd/211:21:182
32666992822,3cyclictest33-21ksoftirqd/210:56:422
32666992822,3cyclictest33-21ksoftirqd/210:56:422
32666992822,3cyclictest33-21ksoftirqd/209:11:462
32666992821,4cyclictest33-21ksoftirqd/208:56:342
32666992821,4cyclictest33-21ksoftirqd/208:56:342
3265999286,4cyclictest0-21swapper/113:51:521
3265999281,9cyclictest2982-21kworker/u8:211:36:311
32659992811,3cyclictest5194-21gltestperf10:11:341
32674992722,3cyclictest41-21ksoftirqd/309:06:273
32666992722,3cyclictest33-21ksoftirqd/213:11:212
32666992722,3cyclictest33-21ksoftirqd/212:56:362
32666992722,3cyclictest33-21ksoftirqd/210:21:362
32666992721,4cyclictest33-21ksoftirqd/212:46:392
32666992721,3cyclictest33-21ksoftirqd/213:46:232
32666992721,3cyclictest33-21ksoftirqd/210:06:272
32666992721,3cyclictest33-21ksoftirqd/209:56:312
3266699270,3cyclictest121rcu_preempt12:05:012
32659992721,3cyclictest25-21ksoftirqd/112:37:021
106891270,10ptp4l401ktimersoftd/310:26:573
32674992617,5cyclictest41-21ksoftirqd/310:41:293
32666992621,3cyclictest33-21ksoftirqd/212:06:392
32666992621,3cyclictest33-21ksoftirqd/210:31:172
32666992619,4cyclictest33-21ksoftirqd/211:41:302
32666992619,4cyclictest33-21ksoftirqd/210:34:382
32666992619,4cyclictest33-21ksoftirqd/209:54:512
32666992619,4cyclictest33-21ksoftirqd/209:26:322
32666992615,9cyclictest33-21ksoftirqd/209:46:402
3266699261,3cyclictest121rcu_preempt11:36:192
32659992621,3cyclictest25-21ksoftirqd/114:06:511
32659992613,2cyclictest0-21swapper/112:51:361
106891260,1ptp4l401ktimersoftd/310:56:113
106891260,1ptp4l401ktimersoftd/310:22:213
106891260,1ptp4l401ktimersoftd/309:26:263
32674992520,3cyclictest41-21ksoftirqd/309:31:473
32674992518,4cyclictest41-21ksoftirqd/309:42:443
32666992520,3cyclictest33-21ksoftirqd/213:22:522
32666992519,3cyclictest33-21ksoftirqd/214:21:232
32666992519,3cyclictest33-21ksoftirqd/210:18:352
32666992519,3cyclictest33-21ksoftirqd/209:36:352
32666992519,3cyclictest33-21ksoftirqd/209:16:412
32659992520,3cyclictest25-21ksoftirqd/113:16:501
32666992419,3cyclictest33-21ksoftirqd/213:56:432
32666992418,3cyclictest33-21ksoftirqd/213:11:362
32666992418,3cyclictest33-21ksoftirqd/213:01:392
32666992418,3cyclictest33-21ksoftirqd/211:56:352
32666992418,3cyclictest33-21ksoftirqd/211:51:202
32666992418,3cyclictest33-21ksoftirqd/211:36:322
32666992418,3cyclictest33-21ksoftirqd/209:01:282
32666992418,3cyclictest33-21ksoftirqd/209:01:282
32659992418,3cyclictest25-21ksoftirqd/110:47:261
32659992417,4cyclictest25-21ksoftirqd/109:54:541
32666992318,3cyclictest33-21ksoftirqd/211:06:182
32666992318,3cyclictest33-21ksoftirqd/210:36:382
32666992317,3cyclictest33-21ksoftirqd/209:34:582
32659992316,4cyclictest25-21ksoftirqd/109:18:011
32659992215,4cyclictest47050irq/101-ens3-Tx13:11:431
32659992215,4cyclictest25020-21cut13:06:341
32659992214,5cyclictest18793-21ssh13:32:261
32666992116,3cyclictest33-21ksoftirqd/212:26:372
32659992117,2cyclictest0-21swapper/109:08:001
3265999211,4cyclictest23118-21ssh11:57:401
3265999210,3cyclictest13761-21/usr/sbin/munin10:26:461
32659992014,4cyclictest8635-21/usr/sbin/munin13:56:411
32659992013,4cyclictest8237-21expr12:16:341
32659992013,4cyclictest3838-21fschecks_count09:01:311
32659992013,4cyclictest3838-21fschecks_count09:01:311
32659992013,4cyclictest16033-21gltestperf09:26:301
32659992013,3cyclictest14332-21phc2sys09:21:361
32659991915,2cyclictest0-21swapper/110:36:061
32659991912,3cyclictest1055-21runrttasks12:21:351
3265999191,15cyclictest0-21swapper/110:36:341
32659991811,4cyclictest24042-21cpuspeed_turbos10:51:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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