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2026-07-28 - 01:33
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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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack0slot2.osadl.org (updated Tue Jul 28, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310897921040,1sleep50-21swapper/520:24:345
35420772970,0sleep50-21swapper/523:34:195
34230002970,0sleep40-21swapper/422:44:254
35581722950,1sleep73558173-21grep23:39:257
295034625722,30sleep70-21swapper/719:05:447
2950897995651,4cyclictest125-21kswapd023:24:047
295035425544,8sleep40-21swapper/419:05:494
2950897995149,1cyclictest3489551-21ssh23:09:327
2950897994847,0cyclictest0-21swapper/700:09:207
2950897994847,0cyclictest0-21swapper/700:09:207
2950897994845,2cyclictest3187454-21diskmemload21:14:327
2950888994745,2cyclictest3024432-21kworker/u16:4+flush-8:019:54:244
2950888994542,2cyclictest3248543-21kworker/u16:0+events_unbound21:49:194
2950888994240,2cyclictest3589706-21kworker/u16:2+events_unbound00:34:314
2950888994240,2cyclictest3148457-21kworker/u16:3+events_unbound21:04:284
2950897994140,0cyclictest0-21swapper/723:49:207
2950888994139,2cyclictest3456539-21kworker/u16:1+flush-8:023:34:274
295028124130,8sleep50-21swapper/519:04:465
2950897994038,1cyclictest0-21swapper/721:54:247
2950897994036,3cyclictest3012371-21timerwakeupswit19:34:367
2950888994038,2cyclictest3602344-21kworker/u16:4+flush-8:000:04:204
2950888994038,2cyclictest3456540-21kworker/u16:3+events_unbound23:29:384
2950897993937,1cyclictest3319681-21ssh21:59:397
2950888993937,2cyclictest3199817-21kworker/u16:4+events_unbound22:04:334
2950888993937,2cyclictest3195157-21kworker/u16:1+events_unbound21:19:404
2950888993937,2cyclictest3167997-21kworker/u16:0+events_unbound21:09:354
2950888993937,2cyclictest3024432-21kworker/u16:4+events_unbound19:44:364
2950888993937,2cyclictest2921253-21kworker/u16:2+events_unbound19:24:204
34188772380,1chrt3418878-21sh22:42:357
2950897993835,2cyclictest3380118-21ntpq22:24:337
2950888993836,2cyclictest3589706-21kworker/u16:2+events_unbound23:54:334
2950888993836,2cyclictest3195157-21kworker/u16:1+flush-8:021:44:184
2950888993835,2cyclictest3346654-21kworker/u16:0+events_unbound22:39:324
36792232370,1chrt0-21swapper/600:29:256
2950897993735,1cyclictest3060539-21smartctl19:59:367
2950888993735,2cyclictest3456540-21kworker/u16:3+flush-8:023:06:434
2950888993735,2cyclictest3024432-21kworker/u16:4+flush-8:019:59:244
2950888993734,2cyclictest3199817-21kworker/u16:4+events_unbound21:24:224
2950897993634,1cyclictest3502970-21ssh23:15:407
2950897993633,2cyclictest3064568-21grep20:04:247
2950897993633,2cyclictest3064568-21grep20:04:247
2950897993632,3cyclictest3239887-21grep21:29:247
2950897993632,3cyclictest3239887-21grep21:29:247
2950888993634,2cyclictest3384431-21kworker/u16:2+events_unbound22:59:404
2950888993634,2cyclictest3199817-21kworker/u16:4+flush-8:023:24:364
2950888993634,2cyclictest3199817-21kworker/u16:4+flush-8:022:19:564
2950888993634,2cyclictest3199817-21kworker/u16:4+events_unbound21:29:364
2950888993634,2cyclictest3199817-21kworker/u16:4+events_unbound21:29:364
2950888993634,2cyclictest3148457-21kworker/u16:3+events_unbound22:02:014
2950888993634,2cyclictest3148457-21kworker/u16:3+events_unbound21:16:004
295049123625,8sleep60-21swapper/619:07:446
2950897993534,0cyclictest0-21swapper/723:31:377
2950897993533,1cyclictest3222390-21ssh21:20:497
2950897993532,2cyclictest3073569-21kthreadcore20:09:257
2950897993531,2cyclictest3518279-21iostat_ios23:24:237
2950888993533,2cyclictest3589706-21kworker/u16:2+events_unbound00:03:014
2950888993533,2cyclictest3456539-21kworker/u16:1+events_unbound23:13:564
2950888993533,2cyclictest3195157-21kworker/u16:1+flush-8:022:15:114
2950888993532,2cyclictest3602344-21kworker/u16:4+events_unbound00:28:334
2950888993532,2cyclictest3148457-21kworker/u16:3+events_unbound21:39:364
2950897993433,0cyclictest0-21swapper/722:16:527
2950897993432,1cyclictest3697468-21ssh00:35:007
2950897993432,1cyclictest3674734-21ssh00:28:007
2950897993430,3cyclictest3359807-21df22:19:177
2950888993432,2cyclictest3602344-21kworker/u16:4+events_unbound00:21:174
2950888993432,2cyclictest3456539-21kworker/u16:1+flush-8:023:19:304
2950888993432,2cyclictest3384431-21kworker/u16:2+events_unbound22:31:534
2950888993432,2cyclictest3199817-21kworker/u16:4+flush-8:022:09:304
2950888993432,2cyclictest3199817-21kworker/u16:4+events_unbound22:56:524
2950888993432,2cyclictest3199817-21kworker/u16:4+events_unbound21:54:394
2950888993432,2cyclictest3099321-21kworker/u16:0+flush-8:020:24:354
33398262330,1chrt3339827-21kthreadcore22:09:257
2950897993332,0cyclictest0-21swapper/723:55:457
2950888993331,2cyclictest3602344-21kworker/u16:4+events_unbound00:14:314
2950888993331,2cyclictest3517405-21kworker/u16:0+events_unbound23:40:564
2950888993331,2cyclictest3456540-21kworker/u16:3+events_unbound23:51:084
2950888993331,2cyclictest3456539-21kworker/u16:1+events_unbound23:48:554
2950888993331,2cyclictest3399022-21kworker/u16:1+flush-8:022:38:444
2950888993331,2cyclictest3346654-21kworker/u16:0+flush-8:022:52:524
2950888993331,2cyclictest3346654-21kworker/u16:0+flush-8:022:52:524
2950888993330,2cyclictest3167997-21kworker/u16:0+events_unbound20:59:234
2950888993330,2cyclictest2877686-21kworker/u16:3+events_unbound20:04:224
2950888993330,2cyclictest2877686-21kworker/u16:3+events_unbound20:04:224
2950897993231,0cyclictest0-21swapper/700:07:597
2950897993230,1cyclictest3648668-21ssh00:14:437
2950897993230,1cyclictest0-21swapper/721:24:487
2950888993230,2cyclictest3602344-21kworker/u16:4+events_unbound00:12:244
2950888993230,2cyclictest3602344-21kworker/u16:4+events_unbound00:12:244
2950888993230,2cyclictest3248543-21kworker/u16:0+events_unbound21:37:334
2950888993230,2cyclictest3199817-21kworker/u16:4+events_unbound23:18:454
2950897993128,2cyclictest3575850-21ssh23:45:167
2950888993129,2cyclictest3638836-21kworker/u16:0+events_unbound00:33:244
2950888993129,2cyclictest3051493-21kworker/u16:0+events_unbound20:09:374
2950897993029,0cyclictest0-21swapper/721:04:227
2950897993027,2cyclictest3453660-21ssh22:54:397
2950897993025,3cyclictest3399021-21cat22:34:257
2950888993028,2cyclictest3199817-21kworker/u16:4+events_unbound22:27:514
2950897992826,1cyclictest3393907-21ssh22:31:287
2950897992823,3cyclictest3442512-21ssh22:51:167
2950897992823,3cyclictest3442512-21ssh22:51:167
295089799280,26cyclictest3279846-21kthreadcore21:44:257
2950897992726,0cyclictest0-21swapper/723:08:367
295089799270,25cyclictest3190874-21grep21:09:257
295089799270,25cyclictest3169552-21sed20:59:237
2950888992725,2cyclictest3080866-21kworker/u16:4+flush-8:020:29:234
2950888992725,2cyclictest3003114-21kworker/u16:2+events_unbound19:49:414
2950897992625,0cyclictest0-21swapper/722:05:367
2950897992625,0cyclictest0-21swapper/721:52:567
2950897992625,0cyclictest0-21swapper/721:35:207
2950892992523,2cyclictest3602344-21kworker/u16:4+events_unbound00:04:396
2950892992522,2cyclictest3456539-21kworker/u16:1+flush-8:023:59:056
2950888992523,2cyclictest3003114-21kworker/u16:2+flush-8:019:39:284
2950897992421,2cyclictest3468251-21ssh23:03:567
2950891992420,3cyclictest3456539-21kworker/u16:1+flush-8:000:24:055
2950888992422,2cyclictest2993189-21kworker/u16:1+events_unbound19:34:304
2950888992422,2cyclictest2921253-21kworker/u16:2+flush-8:019:19:194
2950888992422,2cyclictest2921253-21kworker/u16:2+flush-8:019:19:194
2950897992320,2cyclictest2995527-21cut19:29:237
2950888992321,2cyclictest3003114-21kworker/u16:2+flush-8:020:14:264
2950888992320,2cyclictest2877686-21kworker/u16:3+flush-8:019:09:164
2950897992220,1cyclictest3614004-21ssh00:03:117
2950897992220,1cyclictest3089455-21strings20:14:297
295089799220,20cyclictest3542106-21tr23:34:197
2950888992220,2cyclictest3128900-21kworker/u16:0+events_unbound20:39:254
2950897992119,1cyclictest0-21swapper/700:33:407
2950892992119,2cyclictest2983439-21kworker/u16:0+flush-8:019:29:316
2950891992119,2cyclictest3456540-21kworker/u16:3+flush-8:023:04:275
2950888992119,2cyclictest2877686-21kworker/u16:3+events_unbound19:31:154
2950897992018,1cyclictest3018388-21kthreadcore19:39:277
295089799200,18cyclictest3124382-21kthreadcore20:34:267
2950888992018,2cyclictest3158278-21kworker/u16:2+events_unbound20:54:004
2950897991918,0cyclictest0-21swapper/719:14:097
2950897991817,0cyclictest0-21swapper/722:48:047
2950888991816,2cyclictest2921253-21kworker/u16:2+events_unbound19:16:534
2950897991716,0cyclictest0-21swapper/719:56:577
2950897991713,3cyclictest648-21systemd-journal20:29:007
2950897991713,3cyclictest3187454-21diskmemload00:21:237
295089799170,15cyclictest3115275-21grep20:29:267
2950892991715,2cyclictest3003114-21kworker/u16:2+flush-8:019:49:316
2950891991715,2cyclictest3195157-21kworker/u16:1+flush-8:021:33:395
2950891991715,2cyclictest3195157-21kworker/u16:1+flush-8:021:33:395
2950888991715,2cyclictest3148457-21kworker/u16:3+flush-8:020:54:214
2950897991615,0cyclictest0-21swapper/721:39:407
2950888991614,2cyclictest3128900-21kworker/u16:0+flush-8:020:44:444
295089799157,6cyclictest3031345-21ntp_states19:44:327
2950897991512,2cyclictest0-21swapper/720:44:267
2950892991514,1cyclictest0-21swapper/622:14:416
295089199150,14cyclictest0-21swapper/520:59:205
2950897991411,2cyclictest0-21swapper/720:59:057
2950892991413,1cyclictest0-21swapper/623:50:046
2950892991413,1cyclictest0-21swapper/623:38:156
2950892991413,1cyclictest0-21swapper/622:49:326
2950892991413,1cyclictest0-21swapper/622:49:326
2950892991413,1cyclictest0-21swapper/622:36:176
2950892991413,1cyclictest0-21swapper/600:20:116
295089299140,1cyclictest0-21swapper/621:49:566
295089299140,14cyclictest0-21swapper/623:41:086
295089299140,14cyclictest0-21swapper/600:01:546
295089299140,0cyclictest0-21swapper/622:04:176
2950891991413,1cyclictest0-21swapper/523:26:455
2950891991413,1cyclictest0-21swapper/523:17:085
2950891991413,1cyclictest0-21swapper/522:53:485
2950891991413,1cyclictest0-21swapper/522:53:485
2950891991413,1cyclictest0-21swapper/522:17:135
2950891991413,1cyclictest0-21swapper/521:54:505
2950888991412,2cyclictest3100118-21kworker/u16:3+flush-8:020:34:354
295089799139,3cyclictest1302-21snmpd19:49:517
2950892991312,1cyclictest0-21swapper/623:11:176
2950892991312,1cyclictest0-21swapper/619:19:316
2950892991312,1cyclictest0-21swapper/619:19:316
2950892991312,1cyclictest0-21swapper/600:28:336
295089299130,1cyclictest0-21swapper/623:06:156
2950891991312,1cyclictest0-21swapper/523:49:275
2950891991312,1cyclictest0-21swapper/523:29:165
2950891991312,1cyclictest0-21swapper/523:00:545
2950891991312,1cyclictest0-21swapper/522:58:225
2950891991312,1cyclictest0-21swapper/522:29:505
2950891991312,1cyclictest0-21swapper/521:51:225
2950891991312,1cyclictest0-21swapper/521:12:255
2950891991312,1cyclictest0-21swapper/500:25:245
295089199130,13cyclictest0-21swapper/523:19:395
295089199130,13cyclictest0-21swapper/521:37:015
295089199130,13cyclictest0-21swapper/521:21:155
295089199130,13cyclictest0-21swapper/521:16:505
295089199130,0cyclictest0-21swapper/523:47:245
2950888991311,2cyclictest3099321-21kworker/u16:0+events_unbound20:20:454
295089799129,2cyclictest1302-21snmpd20:51:107
295089799129,2cyclictest1302-21snmpd19:12:597
2950892991211,1cyclictest0-21swapper/623:32:346
2950892991211,1cyclictest0-21swapper/621:42:316
2950892991211,1cyclictest0-21swapper/620:19:456
295089299120,12cyclictest0-21swapper/619:26:566
2950891991211,1cyclictest0-21swapper/523:40:095
2950891991211,1cyclictest0-21swapper/522:43:055
2950891991211,1cyclictest0-21swapper/522:20:135
2950891991211,1cyclictest0-21swapper/522:01:185
2950891991211,1cyclictest0-21swapper/521:47:545
2950891991211,1cyclictest0-21swapper/521:25:405
2950891991211,1cyclictest0-21swapper/520:33:005
295089799119,1cyclictest0-21swapper/720:39:247
295089799119,1cyclictest0-21swapper/719:24:207
295089799118,2cyclictest3091607-21hddtemp_smartct20:19:217
295089799118,2cyclictest0-21swapper/719:19:287
295089799118,2cyclictest0-21swapper/719:19:287
2950892991110,1cyclictest0-21swapper/623:48:016
2950892991110,1cyclictest0-21swapper/623:26:256
2950892991110,1cyclictest0-21swapper/623:21:236
2950892991110,1cyclictest0-21swapper/623:16:206
2950892991110,1cyclictest0-21swapper/622:56:376
2950892991110,1cyclictest0-21swapper/622:42:546
2950892991110,1cyclictest0-21swapper/622:11:136
2950892991110,1cyclictest0-21swapper/622:00:496
2950892991110,1cyclictest0-21swapper/621:46:286
2950892991110,1cyclictest0-21swapper/621:34:386
2950892991110,1cyclictest0-21swapper/621:30:136
2950892991110,1cyclictest0-21swapper/621:30:136
2950892991110,1cyclictest0-21swapper/620:41:216
2950892991110,1cyclictest0-21swapper/620:16:076
2950892991110,1cyclictest0-21swapper/620:10:556
295089299110,11cyclictest0-21swapper/621:05:096
295089299110,11cyclictest0-21swapper/620:28:066
295089299110,11cyclictest0-21swapper/619:37:306
295089299110,11cyclictest0-21swapper/619:16:226
2950891991110,1cyclictest0-21swapper/523:59:145
2950891991110,1cyclictest0-21swapper/522:04:465
2950891991110,1cyclictest0-21swapper/521:40:585
2950891991110,1cyclictest0-21swapper/520:47:405
2950891991110,1cyclictest0-21swapper/520:14:435
2950891991110,1cyclictest0-21swapper/520:07:285
2950891991110,1cyclictest0-21swapper/520:07:285
2950891991110,1cyclictest0-21swapper/519:57:045
2950891991110,1cyclictest0-21swapper/519:47:365
2950891991110,1cyclictest0-21swapper/519:32:185
295089199110,11cyclictest0-21swapper/521:05:585
295089199110,11cyclictest0-21swapper/520:35:325
295089199110,11cyclictest0-21swapper/520:11:055
295089199110,11cyclictest0-21swapper/519:17:295
295089199110,11cyclictest0-21swapper/519:10:055
295089199110,0cyclictest0-21swapper/500:13:545
295089199110,0cyclictest0-21swapper/500:13:545
295089299109,1cyclictest0-21swapper/622:31:146
295089299109,1cyclictest0-21swapper/621:25:496
295089299109,1cyclictest0-21swapper/621:16:306
295089299109,1cyclictest0-21swapper/620:46:246
295089299109,1cyclictest0-21swapper/620:31:446
295089299109,1cyclictest0-21swapper/620:07:186
295089299109,1cyclictest0-21swapper/620:07:186
295089299109,1cyclictest0-21swapper/620:03:406
295089299109,1cyclictest0-21swapper/619:48:326
295089299109,1cyclictest0-21swapper/619:40:396
295089299108,2cyclictest86-21ksoftirqd/622:59:226
295089299108,2cyclictest86-21ksoftirqd/622:19:306
295089299100,5cyclictest0-21swapper/620:36:436
295089199109,1cyclictest0-21swapper/522:36:565
295089199109,1cyclictest0-21swapper/520:00:415
295089199109,1cyclictest0-21swapper/519:52:205
295089199100,0cyclictest0-21swapper/520:50:125
295089199100,0cyclictest0-21swapper/519:41:185
29508929998,1cyclictest0-21swapper/622:26:126
29508929998,1cyclictest0-21swapper/620:58:046
29508929998,1cyclictest0-21swapper/600:38:576
29508929997,2cyclictest86-21ksoftirqd/600:14:356
29508929990,5cyclictest0-21swapper/621:57:296
29508919998,1cyclictest0-21swapper/523:57:115
29508919998,1cyclictest0-21swapper/523:12:345
29508919998,1cyclictest0-21swapper/520:23:045
29508919998,1cyclictest0-21swapper/519:35:285
29508919998,1cyclictest0-21swapper/519:20:385
29508919998,1cyclictest0-21swapper/519:20:385
29508919998,1cyclictest0-21swapper/500:38:295
29508919997,2cyclictest3199817-21kworker/u16:4+flush-8:022:49:005
29508929986,2cyclictest86-21ksoftirqd/622:47:216
29508929986,2cyclictest86-21ksoftirqd/600:10:566
29508929986,2cyclictest86-21ksoftirqd/600:10:566
29508929986,2cyclictest0-21swapper/621:21:246
29508929980,8cyclictest0-21swapper/621:13:146
29508919987,1cyclictest0-21swapper/522:11:145
29508929975,1cyclictest0-21swapper/619:09:196
29508919976,1cyclictest0-21swapper/522:25:165
29508919976,1cyclictest0-21swapper/500:04:545
29508929965,1cyclictest0-21swapper/619:54:326
29508929961,1cyclictest0-21swapper/620:49:296
29508929960,1cyclictest0-21swapper/620:59:316
29508919961,3cyclictest0-21swapper/500:32:235
29508919960,3cyclictest0-21swapper/500:14:095
29508919960,2cyclictest0-21swapper/520:55:315
29508919960,2cyclictest0-21swapper/520:40:205
29508919960,1cyclictest0-21swapper/519:28:505
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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