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2025-09-18 - 20:21
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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 792 highest latencies:
System rack2slot7.osadl.org (updated Thu Sep 18, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322957994717,6cyclictest0-21swapper/010:37:280
32295799465,38cyclictest0-21swapper/009:45:030
32295799422,10cyclictest371372-21sendmail-msp09:27:340
322957993916,2cyclictest535000-21ntpq12:12:310
322958993727,6cyclictest764-21rs:main1
322957993616,4cyclictest11050irq/107-eth%d11:17:320
322958993520,11cyclictest419166-21/usr/sbin/munin10:17:331
32295799354,21cyclictest554767-21/usr/sbin/munin12:32:310
32295799341,18cyclictest0-21swapper/010:55:040
32295999338,10cyclictest171rcu_preempt10:15:012
322957993228,3cyclictest446317-21apt-get10:45:040
32295899319,17cyclictest1006-21mta-sts-daemon08:00:041
32295999306,17cyclictest111788-21systemd-journal11:46:592
32295899292,5cyclictest171rcu_preempt10:15:011
32295799292,18cyclictest407111-21munin-run10:05:010
32295799291,25cyclictest524462-21fschecks_count12:02:270
322958992812,4cyclictest11050irq/107-eth%d09:07:351
322957992815,1cyclictest0-21swapper/010:34:480
32295999266,17cyclictest0-21swapper/209:07:352
32295899269,7cyclictest11050irq/107-eth%d10:30:151
32295899266,7cyclictest171rcu_preempt07:15:021
32295999252,21cyclictest535002-21ssh12:12:312
32295799253,17cyclictest334700-21kworker/0:0+events_power_efficient11:22:320
32295799253,17cyclictest334700-21kworker/0:0+events_power_efficient11:22:320
322957992523,1cyclictest486945-21sendmail-msp11:26:190
32295999243,5cyclictest0-21swapper/209:22:412
32295999242,3cyclictest171rcu_preempt10:45:052
32295999241,7cyclictest171rcu_preempt09:47:442
322959992417,4cyclictest0-21swapper/212:33:032
32295999238,11cyclictest514709-21ntp_states11:52:342
32295999232,10cyclictest171rcu_preempt11:57:342
32295999231,8cyclictest171rcu_preempt10:02:282
32295799231,21cyclictest398108-21kworker/u8:4+rpciod10:05:050
32295799231,21cyclictest356811-21tune2fs08:57:280
32295799230,16cyclictest0-21swapper/011:50:020
32295999222,14cyclictest486945-21sendmail-msp11:27:362
32295899223,5cyclictest524460-21tune2fs12:02:271
32295899221,16cyclictest369563-21/usr/sbin/munin09:22:381
32295799224,17cyclictest453546-21/usr/sbin/munin10:52:270
32295799222,14cyclictest544924-21ssh12:22:350
32295999213,12cyclictest479628-21ssh11:17:322
32295999212,17cyclictest419165-21ssh10:17:332
32295999211,3cyclictest428754-21ssh10:27:342
32295999211,13cyclictest407733-21sh10:05:052
322958992114,3cyclictest0-21swapper/109:45:031
32295799212,18cyclictest463808-21ssh11:02:240
112699210,12rtkit-daemon1125-21rtkit-daemon09:19:232
32295999208,10cyclictest351ktimers/208:47:562
32295999204,4cyclictest371940-21ssh09:25:042
32295999204,2cyclictest431643-21ssh10:30:152
32295999203,5cyclictest171rcu_preempt10:52:312
32295999203,15cyclictest423727-21ssh10:22:352
322959992015,2cyclictest0-21swapper/212:25:022
32295899204,11cyclictest111788-21systemd-journal11:25:151
32295799207,5cyclictest0-21swapper/011:07:350
32295799202,12cyclictest334993-21fschecks_count07:52:280
32295799201,19cyclictest0-21swapper/011:32:250
32295799201,18cyclictest0-21swapper/009:57:250
32295799201,18cyclictest0-21swapper/009:52:330
32295799200,9cyclictest0-21swapper/010:41:590
32295799200,2cyclictest11050irq/107-eth%d09:37:290
32295799200,19cyclictest516917-21gpgv11:55:020
32295999195,11cyclictest559373-21/usr/sbin/munin12:37:352
32295999192,10cyclictest111788-21systemd-journal08:27:302
322959991916,2cyclictest400028-21fschecks_time09:57:282
32295799199,7cyclictest322956-21cyclictest07:15:020
32295799199,6cyclictest334700-21kworker/0:0+events09:33:090
32295799193,8cyclictest1008-21mta-sts-daemon07:22:310
322957991915,2cyclictest0-21swapper/012:27:390
32295799191,18cyclictest0-21swapper/010:27:250
32295799191,17cyclictest0-21swapper/012:07:350
32295799191,16cyclictest505065-21cat11:42:380
32295999182,14cyclictest382394-21/usr/sbin/munin09:37:312
32295999181,3cyclictest171rcu_preempt07:27:562
32295899182,12cyclictest423830-21ntp_states10:22:361
32295899182,11cyclictest332850-21sendmail-msp07:45:081
32295899182,11cyclictest111788-21systemd-journal10:27:341
32295899181,5cyclictest11050irq/107-eth%d10:52:231
322958991814,2cyclictest0-21swapper/112:07:311
32295899181,14cyclictest519392-21ssh11:57:291
32295799183,11cyclictest1005-21mta-sts-daemon10:18:380
32296099173,6cyclictest0-21swapper/311:52:343
32296099173,6cyclictest0-21swapper/308:27:303
32295999174,10cyclictest337992-21latency_hist08:00:012
32295999173,10cyclictest362464-21/usr/sbin/munin09:12:392
32295999172,9cyclictest524109-21ssh12:02:252
32295999172,10cyclictest376630-21ssh09:31:002
322959991713,3cyclictest501912-21munin-plugin-st11:40:022
322959991713,3cyclictest345221-21fschecks_count08:22:282
322959991710,5cyclictest346328-21kworker/u8:1+events_unbound08:32:362
32295899178,5cyclictest0-21swapper/110:55:051
32295899175,8cyclictest404726-21gltestperf10:02:281
32295899174,8cyclictest384959-21ssh09:40:081
32295899174,8cyclictest381790-21diskmemload09:37:271
322958991713,3cyclictest503926-21aten2.4-expect11:42:271
322958991710,6cyclictest358465-21fschecks_time09:02:261
32295799179,3cyclictest539585-21/usr/sbin/munin12:17:280
32295799177,4cyclictest11050irq/107-eth%d09:22:380
32295799171,4cyclictest171rcu_preempt08:00:040
32295799170,7cyclictest564197-21ssh12:42:290
32295799170,10cyclictest343557-21/usr/sbin/munin08:17:270
32296099163,8cyclictest0-21swapper/310:17:333
32296099162,6cyclictest0-21swapper/310:52:313
32296099161,10cyclictest0-21swapper/312:12:313
32295999165,9cyclictest564566-21ssh12:42:332
32295999165,6cyclictest762-21in:imuxsock11:07:162
32295999165,6cyclictest540770-21ssh12:17:532
32295999163,10cyclictest547197-21sendmail-msp12:27:162
32295999162,7cyclictest396426-21ssh09:52:372
322959991613,2cyclictest0-21swapper/209:02:252
32295999161,12cyclictest331076-21grep07:37:372
322959991610,4cyclictest0-21swapper/208:42:262
32295899169,4cyclictest544580-21gltestperf12:22:311
32295899162,5cyclictest11050irq/107-eth%d12:42:361
32295899161,13cyclictest351901-21fschecks_time08:42:281
32295899160,1cyclictest362815-21diskmemload11:52:341
322957991613,2cyclictest520555-21unixbench_multi11:57:390
322957991611,1cyclictest0-21swapper/007:17:320
32295799160,9cyclictest414309-21/usr/sbin/munin10:12:280
32295799160,10cyclictest354816-21/usr/sbin/munin08:52:250
112699160,1rtkit-daemon0-21swapper/007:44:390
32296099156,5cyclictest0-21swapper/309:22:383
32296099153,6cyclictest0-21swapper/312:42:363
32296099153,5cyclictest0-21swapper/311:55:043
32296099151,6cyclictest0-21swapper/310:15:013
32295999155,6cyclictest473408-21ssh11:11:532
32295999151,2cyclictest0-21swapper/211:22:322
32295999151,2cyclictest0-21swapper/211:22:322
322959991512,3cyclictest325636-21ntp_kernel_pll_07:22:312
322959991511,2cyclictest0-21swapper/207:50:022
32295999151,11cyclictest343674-21grep08:17:272
32295999151,10cyclictest457253-21diskmemload10:55:052
32295899156,5cyclictest337969-21latency_hist08:00:011
32295899155,4cyclictest377771-21cut09:32:311
32295899154,7cyclictest11050irq/107-eth%d07:32:291
32295899154,3cyclictest58-21kcompactd012:12:311
32295899153,9cyclictest361766-21grep09:12:281
32295899152,9cyclictest484159-21cut11:22:281
32295899152,9cyclictest484159-21cut11:22:281
32295899152,9cyclictest447328-21ssh10:45:381
32295899152,8cyclictest508866-21/usr/sbin/munin11:47:271
322958991512,2cyclictest1005-21mta-sts-daemon07:27:321
32295899151,13cyclictest111788-21systemd-journal10:05:041
322958991510,4cyclictest396086-21ntp_kernel_err09:52:311
32295899150,14cyclictest499108-21cut11:37:271
32295799159,5cyclictest499977-21threads11:37:360
32295799152,12cyclictest337800-21apt-config08:00:010
32295799151,8cyclictest365337-21ssh09:17:370
322957991515,0cyclictest0-21swapper/011:12:340
322957991512,2cyclictest330551-21ntp_kernel_err07:37:310
322957991512,2cyclictest1008-21mta-sts-daemon10:25:020
32295799150,7cyclictest348519-21cut08:32:260
32295799150,11cyclictest342010-21grep08:12:280
32296099144,6cyclictest0-21swapper/307:27:423
32296099143,7cyclictest0-21swapper/311:26:193
32296099142,6cyclictest0-21swapper/311:32:313
32296099142,6cyclictest0-21swapper/309:45:033
32296099142,4cyclictest0-21swapper/311:46:593
32295999147,2cyclictest11050irq/107-eth%d12:10:022
32295999146,4cyclictest331738-21/usr/sbin/munin07:42:262
32295999144,8cyclictest341488-21latency_hist08:10:022
32295999144,6cyclictest504961-21/usr/sbin/munin11:42:372
32295999143,8cyclictest439205-21/usr/sbin/munin10:37:342
32295999143,8cyclictest338490-21aten_r2power_vo08:02:262
32295999143,7cyclictest336263-21grep07:55:022
32295999142,8cyclictest341959-21fschecks_count08:12:282
32295999141,10cyclictest444584-21unixbench_multi10:42:382
32295899143,9cyclictest355366-21if_wlan008:52:291
32295899143,9cyclictest350013-21aten_r2power_po08:37:261
32295899142,8cyclictest444140-21ntpq10:42:331
32295899142,7cyclictest111788-21systemd-journal11:05:021
32295899142,10cyclictest559881-21/usr/sbin/munin12:37:411
32295899142,10cyclictest549266-21/usr/sbin/munin12:27:281
322958991411,2cyclictest324535-21unixbench_singl07:17:391
322958991411,2cyclictest0-21swapper/112:32:271
32295799141,7cyclictest0-21swapper/009:42:330
322957991411,2cyclictest1005-21mta-sts-daemon12:37:550
322957991410,3cyclictest2736553-1kworker/0:0H-kblockd08:27:300
322957991410,2cyclictest0-21swapper/009:07:390
112699140,1rtkit-daemon0-21swapper/211:31:252
32296099134,5cyclictest0-21swapper/307:42:353
32296099133,5cyclictest0-21swapper/310:02:283
32296099133,5cyclictest0-21swapper/309:25:053
32296099132,8cyclictest0-21swapper/311:07:353
32296099132,6cyclictest0-21swapper/310:32:333
32296099132,6cyclictest0-21swapper/308:37:283
32296099131,6cyclictest0-21swapper/311:25:023
32295999139,2cyclictest0-21swapper/209:42:302
32295999133,7cyclictest356846-21/usr/sbin/munin08:57:282
32295999133,7cyclictest323721-21/usr/sbin/munin07:17:292
32295999132,8cyclictest58-21kcompactd007:15:022
32295999132,1cyclictest11050irq/107-eth%d08:37:282
32295999132,10cyclictest463981-21/usr/sbin/munin11:02:252
322959991310,2cyclictest356135-21unixbench_multi08:52:372
32295899138,4cyclictest0-21swapper/107:37:251
32295899138,3cyclictest0-21swapper/108:17:361
32295899134,6cyclictest1005-21mta-sts-daemon11:14:341
32295899133,9cyclictest479461-21/usr/sbin/munin11:17:301
32295899133,7cyclictest364578-21df09:17:301
32295899133,6cyclictest399659-21ssh09:57:251
32295899131,9cyclictest494459-21/usr/sbin/munin11:32:291
32295899131,2cyclictest469691-21ssh11:07:341
32295899131,11cyclictest334709-21/usr/sbin/munin07:52:281
32295799139,2cyclictest0-21swapper/009:15:020
32295799131,10cyclictest351652-21aten_r2power_po08:42:260
32295799130,8cyclictest0-21swapper/008:22:390
32295799130,11cyclictest329111-21/usr/sbin/munin07:32:310
32296099126,3cyclictest0-21swapper/308:00:043
32296099125,5cyclictest0-21swapper/307:52:313
32296099124,5cyclictest0-21swapper/310:42:263
32296099123,6cyclictest0-21swapper/310:27:343
32296099123,5cyclictest0-21swapper/307:25:013
32296099123,4cyclictest0-21swapper/307:32:273
32296099122,6cyclictest0-21swapper/310:55:043
32296099122,5cyclictest0-21swapper/312:32:313
32296099122,5cyclictest0-21swapper/312:07:223
32296099122,5cyclictest0-21swapper/308:07:343
32296099121,6cyclictest0-21swapper/307:57:403
32296099121,6cyclictest0-21swapper/307:37:303
32295999121,4cyclictest11050irq/107-eth%d07:32:272
32295899127,3cyclictest357798-21grep08:57:371
32295899125,5cyclictest0-21swapper/108:32:271
32295899124,4cyclictest326200-21/usr/sbin/munin07:22:371
32295899123,7cyclictest353174-21/usr/sbin/munin08:47:371
32295899123,7cyclictest347970-21/usr/sbin/munin08:27:361
32295899123,4cyclictest539423-21cut12:17:271
32295899121,10cyclictest341878-21/usr/sbin/munin08:12:271
32295799122,8cyclictest334128-21/usr/sbin/munin07:47:370
32295799122,7cyclictest339780-21sendmail-msp08:05:270
32295799122,5cyclictest350161-21fschecks_count08:37:280
32295799121,8cyclictest353506-21/usr/sbin/munin08:47:280
322957991210,1cyclictest0-21swapper/009:02:250
32295799120,10cyclictest326849-21tune2fs07:27:310
32296099115,4cyclictest0-21swapper/309:52:323
32296099113,5cyclictest0-21swapper/309:07:353
32296099113,4cyclictest0-21swapper/312:27:403
32296099113,4cyclictest0-21swapper/311:17:263
32296099113,4cyclictest0-21swapper/311:12:323
32296099113,4cyclictest0-21swapper/310:45:043
32296099113,4cyclictest0-21swapper/308:52:313
32296099113,4cyclictest0-21swapper/308:47:283
32296099113,4cyclictest0-21swapper/308:42:343
32296099113,3cyclictest0-21swapper/312:37:313
32296099113,2cyclictest0-21swapper/310:05:043
32296099112,6cyclictest0-21swapper/312:02:273
32296099112,5cyclictest0-21swapper/311:37:273
32296099112,5cyclictest0-21swapper/309:42:343
32296099111,6cyclictest0-21swapper/312:22:363
32296099111,5cyclictest0-21swapper/312:15:443
32296099110,6cyclictest0-21swapper/311:22:373
32295899115,2cyclictest345205-21/usr/sbin/munin08:22:281
32295899111,7cyclictest331774-21/usr/sbin/munin07:42:261
32295899110,1cyclictest11050irq/107-eth%d10:36:241
32296099105,4cyclictest0-21swapper/311:02:273
32296099105,3cyclictest0-21swapper/307:15:023
32296099103,4cyclictest0-21swapper/309:57:253
32296099103,4cyclictest0-21swapper/308:22:313
32296099103,3cyclictest0-21swapper/310:37:263
32296099103,3cyclictest0-21swapper/309:02:273
32296099102,5cyclictest0-21swapper/308:32:313
32296099102,5cyclictest0-21swapper/307:45:083
32296099102,4cyclictest0-21swapper/309:32:313
32296099101,6cyclictest0-21swapper/308:57:313
32296099100,5cyclictest0-21swapper/309:37:273
32295899101,6cyclictest340258-21/usr/sbin/munin08:07:281
3229609993,3cyclictest0-21swapper/307:17:273
3229609992,3cyclictest0-21swapper/311:40:373
3229609991,5cyclictest0-21swapper/309:12:283
3229609991,4cyclictest0-21swapper/308:12:263
3229609991,3cyclictest0-21swapper/310:20:053
3229609983,3cyclictest0-21swapper/308:17:263
3229609982,3cyclictest0-21swapper/309:15:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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