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2026-08-24 - 13:27
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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 highest latencies:
System rack0slot2.osadl.org (updated Mon Aug 24, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2685609995145,5cyclictest125-21kswapd010:27:197
2685609994840,7cyclictest2796376-21latency_hist08:02:197
268512524611,30sleep70-21swapper/707:04:427
268504624536,6sleep40-21swapper/407:03:354
268530224434,7sleep50-21swapper/507:07:135
2685600994341,2cyclictest2737708-21kworker/u16:2+flush-8:007:32:445
2685609994135,5cyclictest3313668-21latency_hist11:47:197
2685609994135,5cyclictest2913294-21latency_hist09:02:197
2685609994035,4cyclictest3252596-21latency_hist11:22:187
2685605993936,3cyclictest2981707-21kworker/u16:1+flush-8:009:37:196
2685600993836,2cyclictest2854721-21kworker/u16:1+flush-8:008:37:435
2685600993735,2cyclictest2825484-21kworker/u16:3+events_unbound08:47:485
2685600993634,2cyclictest3069587-21kworker/u16:4+events_unbound11:22:515
2685600993634,2cyclictest3069587-21kworker/u16:4+events_unbound11:22:515
2685600993634,2cyclictest3050227-21kworker/u16:1+events_unbound10:19:415
2685600993533,2cyclictest3189590-21kworker/u16:0+events_unbound11:08:095
268522023525,7sleep60-21swapper/607:06:026
2685600993432,2cyclictest3375124-21kworker/u16:2+events_unbound12:14:175
2685600993331,2cyclictest3239212-21kworker/u16:1+events_unbound11:59:205
2685600993331,2cyclictest3239212-21kworker/u16:1+events_unbound11:16:375
2685600993331,2cyclictest3142823-21kworker/u16:1+events_unbound10:55:375
2685600993230,2cyclictest3189590-21kworker/u16:0+events_unbound11:04:425
2685600993129,2cyclictest3410376-21kworker/u16:2+events_unbound12:28:175
2685600993129,2cyclictest2665589-21kworker/u16:0+flush-8:007:27:435
2685605993028,2cyclictest3239212-21kworker/u16:1+flush-8:011:52:496
2685600993028,2cyclictest3142823-21kworker/u16:1+flush-8:010:48:005
2685600993028,2cyclictest3116281-21kworker/u16:2+events_unbound10:29:455
2685600993028,2cyclictest2981707-21kworker/u16:1+flush-8:009:34:515
2685600993028,2cyclictest2903522-21kworker/u16:2+events_unbound09:21:045
2685605992927,2cyclictest2480715-21kworker/u16:3+events_unbound07:12:346
2685605992927,2cyclictest2480715-21kworker/u16:3+events_unbound07:12:346
2685600992927,2cyclictest3253083-21kworker/u16:2+events_unbound11:46:595
2685600992927,2cyclictest3239212-21kworker/u16:1+events_unbound11:38:395
2685600992927,2cyclictest3189590-21kworker/u16:0+events_unbound10:58:315
2685600992927,2cyclictest3116281-21kworker/u16:2+events_unbound10:36:455
2685600992927,2cyclictest3050227-21kworker/u16:1+events_unbound10:26:475
2685600992927,2cyclictest3007592-21kworker/u16:3+events_unbound09:41:175
2685600992927,2cyclictest2903522-21kworker/u16:2+events_unbound09:28:275
2685600992927,2cyclictest2903522-21kworker/u16:2+events_unbound09:09:515
2685600992826,2cyclictest3007592-21kworker/u16:3+events_unbound09:50:155
2685600992826,2cyclictest2922671-21kworker/u16:0+events_unbound09:15:105
2685600992826,2cyclictest2480715-21kworker/u16:3+events_unbound07:57:215
2685605992724,2cyclictest3335635-21kworker/u16:0+flush-8:012:32:346
2685600992725,2cyclictest3239212-21kworker/u16:1+events_unbound12:05:525
2685600992725,2cyclictest3239212-21kworker/u16:1+events_unbound11:36:475
2685600992725,2cyclictest3239212-21kworker/u16:1+events_unbound11:20:035
2685600992725,2cyclictest3069587-21kworker/u16:4+flush-8:010:39:225
2685600992725,2cyclictest2903522-21kworker/u16:2+events_unbound09:54:315
2685605992624,2cyclictest3050227-21kworker/u16:1+flush-8:009:57:516
2685600992624,2cyclictest3397003-21kworker/u16:1+events_unbound12:27:125
2685600992624,2cyclictest3239212-21kworker/u16:1+events_unbound11:53:595
2685600992624,2cyclictest3239212-21kworker/u16:1+events_unbound11:48:155
2685600992624,2cyclictest3155444-21kworker/u16:2+events_unbound10:43:515
2685600992624,2cyclictest3155444-21kworker/u16:2+events_unbound10:43:515
2685600992624,2cyclictest2903522-21kworker/u16:2+events_unbound09:59:225
2685600992624,2cyclictest2854721-21kworker/u16:1+events_unbound08:57:175
2685600992624,2cyclictest2795887-21kworker/u16:4+events_unbound08:10:055
2685600992624,2cyclictest2480715-21kworker/u16:3+events_unbound07:09:265
2685600992623,2cyclictest3239212-21kworker/u16:1+events_unbound12:07:305
2685609992522,1cyclictest2923002-21diskmemload09:32:347
2685605992523,2cyclictest3314078-21kworker/u16:3+flush-8:011:57:446
2685600992523,2cyclictest3397003-21kworker/u16:1+events_unbound12:18:505
2685600992523,2cyclictest3253083-21kworker/u16:2+events_unbound11:30:165
2685600992523,2cyclictest3050227-21kworker/u16:1+events_unbound10:04:115
2685600992523,2cyclictest3007592-21kworker/u16:3+events_unbound10:09:595
2685600992523,2cyclictest2922671-21kworker/u16:0+flush-8:009:25:085
2685600992523,2cyclictest2903522-21kworker/u16:2+events_unbound09:05:025
2685600992523,2cyclictest2825484-21kworker/u16:3+events_unbound08:22:185
2685600992523,2cyclictest2766842-21kworker/u16:0+flush-8:007:51:065
2685600992523,2cyclictest2631381-21kworker/u16:4+flush-8:007:15:055
2685600992523,2cyclictest2631381-21kworker/u16:4+flush-8:007:15:055
2685600992522,2cyclictest3397003-21kworker/u16:1+events_unbound12:32:235
2685600992522,2cyclictest3050227-21kworker/u16:1+events_unbound10:12:265
2685605992421,2cyclictest3069587-21kworker/u16:4+flush-8:011:12:386
2685600992422,2cyclictest2795887-21kworker/u16:4+events_unbound08:06:015
2685600992422,2cyclictest2480715-21kworker/u16:3+events_unbound07:56:465
2685609992317,5cyclictest2884091-21latency_hist08:47:197
268560999230,21cyclictest2854953-21latency_hist08:32:197
2685605992322,1cyclictest0-21swapper/609:09:046
2685605992319,3cyclictest3069587-21kworker/u16:4+flush-8:010:32:196
2685600992321,2cyclictest2993971-21kworker/u16:0+events_unbound09:46:345
2685605992220,2cyclictest2854721-21kworker/u16:1+events_unbound09:12:476
2685600992220,2cyclictest2825484-21kworker/u16:3+events_unbound08:45:265
2685600992220,2cyclictest2766842-21kworker/u16:0+events_unbound08:28:335
2685605992119,2cyclictest2737708-21kworker/u16:2+flush-8:007:32:526
2685605992119,2cyclictest2480715-21kworker/u16:3+flush-8:007:32:196
2685600992119,2cyclictest2480715-21kworker/u16:3+events_unbound07:39:345
29344472200,1chrt2934448-21ssh09:11:017
2685605992018,2cyclictest2738142-21kworker/u16:4+flush-8:007:37:326
2685600992018,2cyclictest2854721-21kworker/u16:1+flush-8:008:59:525
2685600992018,2cyclictest2766842-21kworker/u16:0+events_unbound08:16:585
2685600992018,2cyclictest2480715-21kworker/u16:3+events_unbound07:44:415
2685600992016,3cyclictest2719457-21diskstats07:22:335
2685596992017,2cyclictest3375124-21kworker/u16:2+flush-8:012:17:294
28729302190,1sleep40-21swapper/408:37:414
268560999190,17cyclictest1302-21snmpd11:49:487
2685605991917,2cyclictest3347929-21kworker/u16:2+events_unbound12:02:336
2685605991917,2cyclictest2767535-21kworker/u16:1+flush-8:007:57:536
2685600991917,2cyclictest2854721-21kworker/u16:1+flush-8:008:33:565
2685600991917,2cyclictest2665589-21kworker/u16:0+flush-8:007:20:335
268560999186,5cyclictest6530-21gmain09:18:007
2685609991816,1cyclictest3237335-21ssh11:12:437
2685609991814,3cyclictest1302-21snmpd11:26:297
2685609991814,3cyclictest1302-21snmpd11:26:297
268560999180,16cyclictest0-21swapper/711:07:437
2685596991812,5cyclictest3130537-21kworker/u16:0+flush-8:010:32:304
2685605991715,2cyclictest3189590-21kworker/u16:0+events_unbound11:02:436
2685605991715,2cyclictest3007592-21kworker/u16:3+flush-8:009:47:586
2685605991714,2cyclictest3189590-21kworker/u16:0+flush-8:010:57:196
2685605991714,2cyclictest2825484-21kworker/u16:3+flush-8:008:37:196
2685605991714,2cyclictest2795887-21kworker/u16:4+flush-8:008:07:376
2685600991715,2cyclictest2795887-21kworker/u16:4+events_unbound08:23:095
2685596991713,3cyclictest3253930-21ip_192.168.114.11:22:344
2685596991713,3cyclictest3253930-21ip_192.168.114.11:22:344
2685609991612,3cyclictest1302-21snmpd11:37:237
268560999160,14cyclictest2923002-21diskmemload10:07:427
268559699165,6cyclictest6120-21gdbus10:04:544
2685596991614,2cyclictest3069587-21kworker/u16:4+flush-8:010:52:184
268560999159,5cyclictest2971863-21latency_hist09:27:197
268560999150,13cyclictest0-21swapper/708:17:427
2685605991514,1cyclictest0-21swapper/608:53:296
2685605991513,2cyclictest3314078-21kworker/u16:3+events_unbound11:47:426
2685605991513,2cyclictest3069587-21kworker/u16:4+events_unbound10:12:336
2685605991512,2cyclictest2480715-21kworker/u16:3+flush-8:007:42:376
268559699150,1cyclictest0-21swapper/411:32:494
2685609991412,1cyclictest3423049-21ssh12:31:367
2685605991413,1cyclictest0-21swapper/612:18:086
2685605991413,1cyclictest0-21swapper/611:10:206
2685605991413,1cyclictest0-21swapper/610:55:226
268560599140,1cyclictest0-21swapper/609:02:316
268560599140,14cyclictest0-21swapper/612:26:206
268560599140,14cyclictest0-21swapper/611:45:116
268560599140,14cyclictest0-21swapper/611:20:266
268560599140,14cyclictest0-21swapper/609:28:396
2685596991413,1cyclictest0-21swapper/411:59:374
2685596991413,1cyclictest0-21swapper/411:13:544
2685596991413,1cyclictest0-21swapper/409:15:584
2685596991411,3cyclictest0-21swapper/411:38:114
2685596991410,3cyclictest2795887-21kworker/u16:4+flush-8:008:07:454
268559699140,1cyclictest0-21swapper/408:52:294
268559699140,14cyclictest0-21swapper/411:30:084
268559699140,14cyclictest0-21swapper/410:42:134
268559699140,14cyclictest0-21swapper/409:49:144
268559699140,14cyclictest0-21swapper/407:12:314
268559699140,14cyclictest0-21swapper/407:12:314
268560999139,3cyclictest1302-21snmpd12:09:007
268560999139,3cyclictest1302-21snmpd11:04:357
268560999139,3cyclictest1302-21snmpd09:58:517
268560999139,3cyclictest1302-21snmpd07:29:347
268560999139,3cyclictest1302-21snmpd07:24:047
268560999134,8cyclictest1234-21tuned09:31:127
268560999130,12cyclictest3130606-21turbostat10:32:197
2685605991312,1cyclictest0-21swapper/610:35:496
2685605991312,1cyclictest0-21swapper/610:07:546
2685605991312,1cyclictest0-21swapper/608:17:326
268560599130,1cyclictest0-21swapper/607:07:436
268560599130,0cyclictest0-21swapper/611:31:476
2685596991312,1cyclictest0-21swapper/412:27:224
2685596991312,1cyclictest0-21swapper/412:08:184
2685596991312,1cyclictest0-21swapper/409:11:244
2685596991311,2cyclictest0-21swapper/408:34:304
268559699130,0cyclictest0-21swapper/412:22:294
268560999129,2cyclictest1302-21snmpd07:33:087
268560999129,2cyclictest0-21swapper/711:52:447
268560999128,3cyclictest1302-21snmpd12:26:517
268560999128,3cyclictest1302-21snmpd11:34:147
268560999128,3cyclictest1302-21snmpd11:27:327
268560999128,3cyclictest1302-21snmpd08:54:467
268560999128,3cyclictest1302-21snmpd08:49:257
268560999128,3cyclictest1302-21snmpd07:18:497
268560999127,4cyclictest977-21in:imjournal08:27:197
268560999126,5cyclictest953-21udisksd08:16:307
2685609991210,1cyclictest2923002-21diskmemload09:47:367
268560999120,11cyclictest1302-21snmpd09:12:327
2685605991211,1cyclictest0-21swapper/610:44:486
2685605991211,1cyclictest0-21swapper/610:44:486
2685605991211,1cyclictest0-21swapper/609:19:586
2685605991211,1cyclictest0-21swapper/608:39:466
2685605991210,2cyclictest86-21ksoftirqd/610:20:316
268560599120,12cyclictest0-21swapper/609:54:216
268559699128,3cyclictest2826763-21cat08:17:344
268559699126,3cyclictest2825414-21fwupd08:16:124
268559699126,1cyclictest0-21swapper/409:32:294
268559699125,1cyclictest0-21swapper/409:02:364
268559699123,4cyclictest3328774-21cut11:52:374
268559699123,4cyclictest3315706-21cut11:47:364
268559699123,4cyclictest3078360-21latency10:07:404
268559699123,4cyclictest2721071-21cat07:22:374
268559699123,3cyclictest3187369-21kthreadcore10:52:394
268559699123,3cyclictest3001863-21tr09:37:394
268559699123,3cyclictest2785694-21cat07:52:434
2685596991211,1cyclictest0-21swapper/412:16:304
2685596991211,1cyclictest0-21swapper/410:45:224
2685596991211,1cyclictest0-21swapper/410:45:224
2685596991211,1cyclictest0-21swapper/409:29:134
2685596991211,1cyclictest0-21swapper/408:45:044
268559699120,10cyclictest0-21swapper/408:50:544
268560999118,2cyclictest6530-21gmain12:02:407
268560999118,2cyclictest1302-21snmpd12:22:007
268560999118,2cyclictest1302-21snmpd10:05:547
268560999118,2cyclictest1302-21snmpd09:38:387
268560999118,2cyclictest1302-21snmpd08:38:227
268560999118,2cyclictest0-21swapper/710:42:187
268560999117,3cyclictest1302-21snmpd10:53:527
268560999117,3cyclictest1302-21snmpd10:47:527
268560999117,3cyclictest1302-21snmpd07:49:237
268560999117,3cyclictest1256-21tuned-ppd10:17:337
2685609991111,0cyclictest0-21swapper/710:34:557
268560999110,4cyclictest2802200-21cut08:02:407
268560999110,10cyclictest1302-21snmpd08:34:487
268560999110,10cyclictest1302-21snmpd08:08:577
268560599119,2cyclictest2825484-21kworker/u16:3+events_unbound08:16:196
268560599118,2cyclictest2907832-21kthreadcore08:57:386
268560599116,4cyclictest2887358-21cut08:47:396
2685605991110,1cyclictest0-21swapper/612:31:136
2685605991110,1cyclictest0-21swapper/611:37:086
2685605991110,1cyclictest0-21swapper/609:45:026
268560599110,3cyclictest3066356-21awk10:02:436
268559699118,1cyclictest0-21swapper/409:20:324
268559699115,1cyclictest0-21swapper/412:02:374
268559699115,1cyclictest0-21swapper/408:27:314
268559699114,1cyclictest0-21swapper/407:42:374
268559699113,3cyclictest2965625-21cut09:22:394
268559699113,3cyclictest2908956-21tr08:57:384
268559699113,3cyclictest2844588-21sed08:22:484
268559699113,3cyclictest2768949-21cut07:47:344
268559699112,4cyclictest3425853-21cut12:32:374
268559699112,4cyclictest3195062-21tr10:57:384
268559699112,4cyclictest3126969-21tr10:27:414
268559699112,4cyclictest3097024-21kthreadcore10:17:364
268559699112,4cyclictest3038970-21cut09:52:394
2685596991110,1cyclictest0-21swapper/411:17:414
2685596991110,1cyclictest0-21swapper/408:02:304
2685596991110,1cyclictest0-21swapper/407:36:574
268559699110,11cyclictest0-21swapper/407:30:584
268560999107,2cyclictest1302-21snmpd11:59:337
268560999106,3cyclictest1302-21snmpd10:12:367
268560999106,3cyclictest1302-21snmpd07:41:147
268560999106,3cyclictest1302-21snmpd07:13:107
268560999106,3cyclictest1302-21snmpd07:13:107
268560999106,3cyclictest1302-21snmpd07:08:317
268560999106,3cyclictest0-21swapper/712:32:427
268560999105,4cyclictest934-21dbus-daemon12:17:187
268560999101,8cyclictest3201337-21sh10:57:487
268560999100,8cyclictest5831-21gnome-shell09:52:287
268560599109,1cyclictest0-21swapper/612:12:096
268560599108,1cyclictest0-21swapper/607:17:426
268560599107,2cyclictest2879580-21kthreadcore08:42:396
268560599106,3cyclictest3375519-21cstates12:12:316
268560599106,3cyclictest2778106-21cat07:52:346
268560599104,5cyclictest0-21swapper/610:22:376
268560599102,2cyclictest3171935-21grep10:47:366
268560599100,3cyclictest3149069-21kthreadcore10:37:406
268560599100,3cyclictest2726683-21cut07:22:416
268559699109,1cyclictest0-21swapper/407:08:444
268559699103,3cyclictest3220036-21grep11:07:374
268559699103,3cyclictest2787434-21cat07:57:334
268559699102,3cyclictest3051595-21kthreadcore09:57:394
26856099995,3cyclictest958-21NetworkManager07:52:487
26856099995,3cyclictest1302-21snmpd07:45:087
26856099994,4cyclictest3165541-21rm10:44:127
26856099994,4cyclictest3165541-21rm10:44:127
26856099994,4cyclictest2922702-21seq09:03:177
26856099990,8cyclictest3008889-21ssh09:42:277
26856059996,2cyclictest3289758-21/usr/sbin/munin11:37:476
26856059991,7cyclictest0-21swapper/609:37:466
26856059990,3cyclictest3257433-21cut11:22:376
26856059990,3cyclictest3257433-21cut11:22:376
26856059990,3cyclictest2965735-21cut09:22:396
26855969995,3cyclictest3212950-21awk11:02:424
26855969994,1cyclictest3082684-21df_inode10:12:304
26855969993,3cyclictest2753448-21cut07:37:374
26856059985,2cyclictest2849305-21kthreadcore08:27:386
26856059984,3cyclictest2775951-21sed07:47:406
26856059980,7cyclictest2796770-21/usr/sbin/munin08:02:366
26855969987,1cyclictest0-21swapper/411:43:324
26855969987,1cyclictest0-21swapper/409:45:374
26855969985,2cyclictest0-21swapper/407:17:394
26855969983,4cyclictest3107245-21fschecks_time10:22:334
26856059974,2cyclictest2835925-21/usr/sbin/munin08:22:326
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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