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2026-07-22 - 04:18
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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 100 highest latencies:
System rack0slot2.osadl.org (updated Wed Jul 22, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322540321040,1sleep50-21swapper/522:44:415
275514825622,29sleep70-21swapper/719:05:527
275530624636,7sleep50-21swapper/519:08:065
2755708994542,2cyclictest2984033-21fschecks_time21:04:457
274613924432,8sleep40-21swapper/419:04:364
2755708993533,1cyclictest0-21swapper/700:00:297
2755708993431,2cyclictest2805662-21kthreadcore19:29:497
275526023221,8sleep60-21swapper/619:07:276
2755699993028,2cyclictest3261130-21kworker/u16:0+events_unbound23:11:064
2755702992927,2cyclictest3371300-21kworker/u16:1+flush-8:023:59:465
2755699992927,2cyclictest3405148-21kworker/u16:0+events_unbound23:59:444
33336562280,1chrt3333657-21sh23:28:277
33336562280,1chrt3333657-21sh23:28:277
2755708992827,0cyclictest0-21swapper/721:24:387
2755699992725,2cyclictest3179361-21kworker/u16:1+events_unbound23:01:514
2755699992725,2cyclictest3051396-21kworker/u16:4+flush-8:021:51:434
2755699992725,2cyclictest3004992-21kworker/u16:2+events_unbound23:19:444
2755699992725,2cyclictest2797945-21kworker/u16:2+events_unbound20:54:424
275570899260,24cyclictest3103056-21cat21:54:407
2755699992624,2cyclictest3371300-21kworker/u16:1+events_unbound23:46:364
2755699992624,2cyclictest3004992-21kworker/u16:2+events_unbound00:19:114
2755699992624,2cyclictest3004992-21kworker/u16:2+events_unbound00:06:444
2755699992624,2cyclictest2966517-21kworker/u16:3+events_unbound21:42:524
2755699992624,2cyclictest2966517-21kworker/u16:3+events_unbound21:16:234
2755699992624,2cyclictest2966517-21kworker/u16:3+events_unbound21:12:274
2755699992624,2cyclictest2809141-21kworker/u16:1+events_unbound20:29:154
2755699992623,2cyclictest2797945-21kworker/u16:2+flush-8:020:09:294
2755699992621,4cyclictest3029252-21cat21:24:234
2755699992621,4cyclictest3029252-21cat21:24:234
2755708992524,0cyclictest0-21swapper/721:16:587
2755702992520,4cyclictest2778788-21latency_hist19:19:295
2755702992520,4cyclictest2778788-21latency_hist19:19:295
2755699992523,2cyclictest3371300-21kworker/u16:1+events_unbound23:53:154
2755699992523,2cyclictest3090410-21kworker/u16:5+events_unbound22:27:044
2755699992523,2cyclictest3051396-21kworker/u16:4+events_unbound22:06:314
2755699992523,2cyclictest3051396-21kworker/u16:4+events_unbound21:55:404
2755699992523,2cyclictest3004992-21kworker/u16:2+flush-8:023:31:234
2755699992523,2cyclictest3004992-21kworker/u16:2+events_unbound21:47:474
2755699992523,2cyclictest2966517-21kworker/u16:3+events_unbound22:53:314
2755699992523,2cyclictest2919591-21kworker/u16:0+flush-8:020:37:424
2755699992523,2cyclictest2886738-21kworker/u16:3+events_unbound20:30:434
2755699992523,2cyclictest2809141-21kworker/u16:1+events_unbound20:52:294
2755699992523,2cyclictest2777820-21kworker/u16:3+events_unbound19:35:174
2755699992523,2cyclictest2769969-21kworker/u16:0+events_unbound19:33:474
2755699992522,2cyclictest3004992-21kworker/u16:2+events_unbound23:07:104
30449562240,1chrt0-21swapper/521:29:485
2755699992422,2cyclictest3468790-21kworker/u16:1+events_unbound00:39:094
2755699992422,2cyclictest3468789-21kworker/u16:0+events_unbound00:29:264
2755699992422,2cyclictest3090410-21kworker/u16:5+events_unbound22:13:554
2755699992422,2cyclictest3029773-21kworker/u16:1+events_unbound21:33:184
2755699992422,2cyclictest3004992-21kworker/u16:2+flush-8:022:00:364
2755699992422,2cyclictest3004992-21kworker/u16:2+events_unbound22:36:564
2755699992422,2cyclictest2966517-21kworker/u16:3+flush-8:021:25:164
2755699992422,2cyclictest2966517-21kworker/u16:3+events_unbound22:58:054
2755708992320,2cyclictest3319176-21find23:19:597
2755702992322,1cyclictest3407889-21kworker/u16:4+events_unbound00:10:335
2755699992321,2cyclictest3491884-21kworker/u16:3+events_unbound00:33:314
2755699992321,2cyclictest3261130-21kworker/u16:0+events_unbound23:25:364
2755699992321,2cyclictest3261130-21kworker/u16:0+events_unbound23:25:364
2755699992321,2cyclictest3261130-21kworker/u16:0+events_unbound23:19:074
2755699992321,2cyclictest2981938-21kworker/u16:5+flush-8:021:00:344
2755699992321,2cyclictest2847086-21kworker/u16:4+flush-8:020:19:134
2755699992321,2cyclictest2737289-21kworker/u16:1+flush-8:019:12:184
2755704992216,5cyclictest2765246-21latency_hist19:14:286
2755702992220,2cyclictest2847086-21kworker/u16:4+flush-8:020:14:545
2755702992219,2cyclictest3004993-21kworker/u16:4+flush-8:021:19:295
2755702992219,2cyclictest3004993-21kworker/u16:4+flush-8:021:19:295
2755702992218,3cyclictest2966517-21kworker/u16:3+flush-8:022:54:275
2755702992218,3cyclictest2797945-21kworker/u16:2+flush-8:019:44:575
2755699992220,2cyclictest3405148-21kworker/u16:0+events_unbound23:55:304
2755699992220,2cyclictest3090410-21kworker/u16:5+events_unbound22:39:364
2755699992220,2cyclictest3090410-21kworker/u16:5+events_unbound22:15:584
2755699992220,2cyclictest3004992-21kworker/u16:2+events_unbound22:21:034
2755699992220,2cyclictest2809141-21kworker/u16:1+flush-8:021:09:244
2755699992220,2cyclictest2797945-21kworker/u16:2+events_unbound20:12:114
2755699992220,2cyclictest2797945-21kworker/u16:2+events_unbound19:47:094
2755699992220,2cyclictest2769969-21kworker/u16:0+events_unbound19:23:574
29269292210,1chrt2926930-21kthreadcore20:34:457
2755708992118,2cyclictest3024638-21cut21:19:547
2755708992118,2cyclictest3024638-21cut21:19:547
2755699992119,2cyclictest3346925-21kworker/u16:3+events_unbound23:44:224
2755699992119,2cyclictest3090410-21kworker/u16:5+events_unbound22:46:524
2755699992119,2cyclictest2855593-21kworker/u16:5+events_unbound19:55:094
2755699992119,2cyclictest2809141-21kworker/u16:1+events_unbound19:51:134
2755699992119,2cyclictest2769969-21kworker/u16:0+events_unbound19:41:214
2755699992018,2cyclictest3090410-21kworker/u16:5+flush-8:022:33:224
2755699992018,2cyclictest2809141-21kworker/u16:1+events_unbound20:01:264
2755699992018,2cyclictest2797945-21kworker/u16:2+events_unbound20:48:014
2755708991918,0cyclictest0-21swapper/719:44:287
275570899190,17cyclictest3370535-21sh23:43:467
2755702991917,2cyclictest2769969-21kworker/u16:0+flush-8:019:24:445
2755699991917,2cyclictest2966517-21kworker/u16:3+flush-8:021:35:324
2755699991917,2cyclictest2809141-21kworker/u16:1+events_unbound20:19:334
2755708991817,0cyclictest0-21swapper/721:50:577
2755708991816,1cyclictest3298689-21ssh23:14:447
2755708991814,3cyclictest1302-21snmpd20:49:047
2755708991814,3cyclictest1302-21snmpd19:16:237
2755708991814,3cyclictest1302-21snmpd19:16:237
275570499188,4cyclictest2866420-21cat20:04:296
2755704991811,6cyclictest3004815-21latency_hist21:14:286
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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