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2026-04-20 - 13:29
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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 Apr 20, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33004412640,1sleep73300443-21ssh10:05:267
292215025545,7sleep40-21swapper/407:06:154
292234924535,7sleep50-21swapper/507:09:055
2922695994438,5cyclictest3643468-21latency_hist12:29:367
2922695994235,5cyclictest635-21systemd-journal10:04:377
2922692994038,2cyclictest3361282-21kworker/u16:1+events_unbound11:14:376
29221222403,31sleep70-21swapper/707:05:547
2922695993933,5cyclictest3436812-21latency_hist11:04:387
2922690993633,2cyclictest3361282-21kworker/u16:1+flush-8:011:23:555
2922692993533,2cyclictest3388192-21kworker/u16:4+events_unbound12:24:556
2922690993533,2cyclictest3593641-21kworker/u16:1+events_unbound12:08:405
2922690993533,2cyclictest3546645-21kworker/u16:0+flush-8:012:00:555
2922690993533,2cyclictest3388192-21kworker/u16:4+flush-8:011:59:155
2922692993432,2cyclictest3593641-21kworker/u16:1+flush-8:012:30:476
2922690993432,2cyclictest3422491-21kworker/u16:3+events_unbound10:56:525
2922690993432,2cyclictest3388192-21kworker/u16:4+flush-8:011:45:355
2922690993432,2cyclictest3388192-21kworker/u16:4+flush-8:011:41:405
2922690993432,2cyclictest3277310-21kworker/u16:2+events_unbound10:08:035
2922690993432,2cyclictest3088576-21kworker/u16:2+flush-8:009:48:315
2922690993432,2cyclictest3088576-21kworker/u16:2+events_unbound09:28:485
2922692993331,2cyclictest3628849-21kworker/u16:0+flush-8:012:37:476
2922692993331,2cyclictest3628849-21kworker/u16:0+flush-8:012:37:476
2922692993331,2cyclictest3413392-21kworker/u16:0+events_unbound11:05:116
2922690993331,2cyclictest3593641-21kworker/u16:1+flush-8:012:18:325
2922690993331,2cyclictest3388192-21kworker/u16:4+events_unbound11:29:195
2922690993331,2cyclictest3361282-21kworker/u16:1+events_unbound11:13:565
2922690993331,2cyclictest3361282-21kworker/u16:1+events_unbound11:09:195
2922690993331,2cyclictest3302338-21kworker/u16:0+events_unbound10:26:475
2922690993331,2cyclictest3118539-21kworker/u16:0+events_unbound09:13:415
2922690993331,2cyclictest3088576-21kworker/u16:2+flush-8:009:23:125
2922692993230,2cyclictest3361282-21kworker/u16:1+events_unbound10:33:476
2922692993230,2cyclictest3361282-21kworker/u16:1+events_unbound10:33:476
2922692993230,2cyclictest3239482-21kworker/u16:4+flush-8:009:43:046
2922692993229,2cyclictest3388192-21kworker/u16:4+events_unbound12:04:396
2922690993230,2cyclictest3388192-21kworker/u16:4+flush-8:011:35:405
2922690993230,2cyclictest3315400-21kworker/u16:3+flush-8:010:43:085
2922690993230,2cyclictest3191969-21kworker/u16:0+flush-8:009:38:275
2922695993130,0cyclictest0-21swapper/711:55:557
2922690993129,2cyclictest3593641-21kworker/u16:1+flush-8:012:29:275
2922690993129,2cyclictest3522012-21kworker/u16:2+flush-8:012:10:595
2922690993129,2cyclictest3108744-21kworker/u16:1+flush-8:009:54:525
2922692993028,2cyclictest3375732-21kworker/u16:2+flush-8:010:39:436
2922692993028,2cyclictest3361282-21kworker/u16:1+flush-8:010:50:126
2922692993028,2cyclictest3302338-21kworker/u16:0+events_unbound10:14:516
2922692993028,2cyclictest3108744-21kworker/u16:1+events_unbound09:54:036
2922692993028,2cyclictest2875279-21kworker/u16:1+flush-8:007:29:326
2922692993027,2cyclictest3388192-21kworker/u16:4+flush-8:011:39:476
2922690993028,2cyclictest3643853-21kworker/u16:3+flush-8:012:38:205
2922690993028,2cyclictest3643853-21kworker/u16:3+flush-8:012:38:205
2922690993028,2cyclictest3388192-21kworker/u16:4+events_unbound12:21:515
2922690993028,2cyclictest3375732-21kworker/u16:2+events_unbound10:49:355
2922690993028,2cyclictest3302338-21kworker/u16:0+flush-8:010:35:445
2922690993028,2cyclictest3302338-21kworker/u16:0+events_unbound10:10:515
2922690993028,2cyclictest3277310-21kworker/u16:2+events_unbound10:24:205
29223412307,8sleep60-21swapper/607:08:586
2922695992928,0cyclictest0-21swapper/709:40:537
2922692992926,2cyclictest3546645-21kworker/u16:0+flush-8:011:54:426
2922690992927,2cyclictest3593641-21kworker/u16:1+events_unbound12:32:035
2922690992927,2cyclictest3388192-21kworker/u16:4+flush-8:011:30:165
2922690992927,2cyclictest3388192-21kworker/u16:4+events_unbound11:50:475
2922690992927,2cyclictest3361282-21kworker/u16:1+flush-8:011:16:355
2922690992927,2cyclictest3361282-21kworker/u16:1+flush-8:010:54:245
2922690992927,2cyclictest3361282-21kworker/u16:1+events_unbound11:03:085
2922690992927,2cyclictest3361282-21kworker/u16:1+events_unbound10:31:405
2922690992927,2cyclictest3361282-21kworker/u16:1+events_unbound10:31:405
2922690992927,2cyclictest3277310-21kworker/u16:2+events_unbound10:00:375
2922690992927,2cyclictest3108744-21kworker/u16:1+events_unbound09:52:055
31677142280,1chrt3167713-21ssh09:12:537
2922695992822,5cyclictest3022358-21latency_hist07:59:387
2922692992826,2cyclictest3507304-21kworker/u16:3+flush-8:011:33:476
2922692992826,2cyclictest3157006-21kworker/u16:3+events_unbound09:11:486
2922692992825,3cyclictest3413392-21kworker/u16:0+flush-8:011:20:086
2922690992826,2cyclictest3302338-21kworker/u16:0+events_unbound10:15:445
2922690992826,2cyclictest3191969-21kworker/u16:0+events_unbound09:31:525
2922690992826,2cyclictest3088576-21kworker/u16:2+events_unbound09:42:275
34482112270,1chrt3448209-21ssh11:08:177
32271232270,1chrt3227121-21ssh09:35:137
2922695992726,0cyclictest0-21swapper/710:49:297
2922695992725,1cyclictest3483116-21ssh11:20:277
2922692992725,2cyclictest3302338-21kworker/u16:0+events_unbound10:25:486
2922692992724,2cyclictest3239482-21kworker/u16:4+flush-8:009:59:476
36309892260,1chrt3630987-21ssh12:24:067
2922695992625,0cyclictest0-21swapper/712:01:597
2922695992625,0cyclictest0-21swapper/710:58:057
2922695992625,0cyclictest0-21swapper/710:32:217
2922695992625,0cyclictest0-21swapper/710:32:217
2922695992625,0cyclictest0-21swapper/709:30:357
2922692992624,2cyclictest3388192-21kworker/u16:4+flush-8:012:13:556
2922692992624,2cyclictest3375732-21kworker/u16:2+flush-8:010:45:526
2922695992524,0cyclictest0-21swapper/711:41:457
2922695992524,0cyclictest0-21swapper/711:38:307
2922695992524,0cyclictest0-21swapper/711:31:107
2922695992524,0cyclictest0-21swapper/710:26:177
2922695992524,0cyclictest0-21swapper/708:22:567
2922695992523,1cyclictest0-21swapper/709:50:337
2922692992523,2cyclictest3413392-21kworker/u16:0+events_unbound11:15:526
2922692992523,2cyclictest3388192-21kworker/u16:4+flush-8:011:28:116
2922692992522,2cyclictest3108744-21kworker/u16:1+events_unbound09:34:406
2922690992523,2cyclictest3108744-21kworker/u16:1+events_unbound09:17:165
2922695992423,0cyclictest0-21swapper/712:35:347
2922695992423,0cyclictest0-21swapper/712:35:347
2922695992423,0cyclictest0-21swapper/710:38:077
2922695992423,0cyclictest0-21swapper/709:17:307
2922695992423,0cyclictest0-21swapper/709:02:097
2922695992423,0cyclictest0-21swapper/707:54:317
2922695992421,2cyclictest3496224-21ssh11:27:147
2922695992421,2cyclictest3326228-21ssh10:18:047
2922695992322,0cyclictest0-21swapper/712:32:597
2922695992322,0cyclictest0-21swapper/711:46:177
2922695992322,0cyclictest0-21swapper/710:13:187
2922695992322,0cyclictest0-21swapper/709:28:237
2922695992322,0cyclictest0-21swapper/709:23:017
2922695992322,0cyclictest0-21swapper/708:08:567
2922695992322,0cyclictest0-21swapper/707:37:367
2922695992322,0cyclictest0-21swapper/707:34:327
2922695992322,0cyclictest0-21swapper/707:10:367
2922692992321,2cyclictest3388192-21kworker/u16:4+flush-8:011:37:326
2922692992321,2cyclictest3388192-21kworker/u16:4+events_unbound11:47:516
2922692992321,2cyclictest3361282-21kworker/u16:1+flush-8:010:54:546
2922692992321,2cyclictest2922308-21kworker/u16:0+flush-8:007:14:336
2922692992320,2cyclictest3546645-21kworker/u16:0+flush-8:012:00:166
2922695992221,0cyclictest0-21swapper/712:18:267
2922695992221,0cyclictest0-21swapper/710:21:307
2922695992221,0cyclictest0-21swapper/709:58:097
2922695992221,0cyclictest0-21swapper/709:47:267
2922695992221,0cyclictest0-21swapper/709:08:197
2922695992221,0cyclictest0-21swapper/708:57:087
2922695992221,0cyclictest0-21swapper/708:44:247
2922692992220,2cyclictest3628849-21kworker/u16:0+flush-8:012:22:366
2922692992220,2cyclictest3361282-21kworker/u16:1+flush-8:011:01:246
2922692992220,2cyclictest3277310-21kworker/u16:2+events_unbound10:22:236
2922692992220,2cyclictest3239482-21kworker/u16:4+flush-8:010:10:086
2922692992220,2cyclictest3088576-21kworker/u16:2+flush-8:009:22:046
2922692992220,2cyclictest3088576-21kworker/u16:2+events_unbound09:46:126
2922690992220,2cyclictest3118539-21kworker/u16:0+flush-8:009:04:375
2922690992220,2cyclictest3118539-21kworker/u16:0+events_unbound08:50:025
2922690992220,2cyclictest3088576-21kworker/u16:2+flush-8:008:54:585
2922690992220,2cyclictest3012426-21kworker/u16:0+flush-8:008:04:355
2922690992220,2cyclictest3012426-21kworker/u16:0+events_unbound08:04:405
2922690992220,2cyclictest2849912-21kworker/u16:3+flush-8:008:13:285
2922690992220,2cyclictest2849912-21kworker/u16:3+events_unbound07:27:525
2922695992120,0cyclictest0-21swapper/710:54:277
2922695992120,0cyclictest0-21swapper/708:27:017
2922695992120,0cyclictest0-21swapper/708:27:017
2922695992120,0cyclictest0-21swapper/707:47:407
2922695992120,0cyclictest0-21swapper/707:18:137
2922692992119,2cyclictest3388192-21kworker/u16:4+events_unbound12:17:556
2922692992119,2cyclictest3239482-21kworker/u16:4+events_unbound09:58:036
2922692992119,2cyclictest3191969-21kworker/u16:0+events_unbound09:29:096
2922692992118,2cyclictest3051494-21kworker/u16:0+events_unbound08:40:046
2922690992119,2cyclictest3108744-21kworker/u16:1+events_unbound08:44:445
2922690992119,2cyclictest2931248-21kworker/u16:5+events_unbound07:48:485
2922690992119,2cyclictest2849912-21kworker/u16:3+flush-8:007:40:525
2922690992119,2cyclictest2849912-21kworker/u16:3+flush-8:007:40:525
2922685992118,2cyclictest3157006-21kworker/u16:3+flush-8:009:19:474
2922695992019,0cyclictest0-21swapper/708:47:517
2922695992014,5cyclictest3099026-21latency_hist08:39:387
2922692992018,2cyclictest3522012-21kworker/u16:2+flush-8:011:51:446
2922692992018,2cyclictest3302338-21kworker/u16:0+events_unbound10:35:366
2922692992018,2cyclictest3108744-21kworker/u16:1+flush-8:009:30:016
2922692992018,2cyclictest3108744-21kworker/u16:1+flush-8:008:48:476
2922692992018,2cyclictest3012426-21kworker/u16:0+flush-8:007:59:566
2922690992018,2cyclictest3118539-21kworker/u16:0+flush-8:009:05:515
2922690992018,2cyclictest3051494-21kworker/u16:0+events_unbound08:21:485
2922690992018,2cyclictest2931248-21kworker/u16:5+events_unbound07:21:525
2922695991918,0cyclictest0-21swapper/712:11:047
2922695991918,0cyclictest0-21swapper/708:16:417
2922695991918,0cyclictest0-21swapper/708:03:087
2922695991918,0cyclictest0-21swapper/707:25:127
2922695991918,0cyclictest0-21swapper/707:22:127
2922695991917,1cyclictest0-21swapper/708:32:177
2922692991918,1cyclictest0-21swapper/610:04:536
2922692991917,2cyclictest3069978-21kworker/u16:3+flush-8:008:34:546
2922692991917,2cyclictest3051494-21kworker/u16:0+flush-8:008:14:536
2922692991916,3cyclictest2875279-21kworker/u16:1+flush-8:007:30:086
2922690991917,2cyclictest2875279-21kworker/u16:1+events_unbound07:10:525
2922695991817,0cyclictest0-21swapper/711:53:007
2922692991816,2cyclictest3088576-21kworker/u16:2+events_unbound08:55:056
2922692991816,2cyclictest3069978-21kworker/u16:3+events_unbound08:30:066
2922692991816,2cyclictest3041279-21kworker/u16:2+events_unbound08:09:166
2922692991816,2cyclictest2849912-21kworker/u16:3+events_unbound07:50:056
2922690991816,2cyclictest3088576-21kworker/u16:2+events_unbound08:39:175
2922690991816,2cyclictest3069978-21kworker/u16:3+events_unbound08:31:525
2922690991816,2cyclictest3012426-21kworker/u16:0+flush-8:007:55:085
2922690991816,2cyclictest2875279-21kworker/u16:1+flush-8:007:14:595
2922695991716,0cyclictest0-21swapper/712:05:097
2922695991716,0cyclictest0-21swapper/708:53:167
2922692991715,2cyclictest2849912-21kworker/u16:3+flush-8:007:44:446
2922695991615,0cyclictest0-21swapper/708:12:577
2922690991614,2cyclictest2875279-21kworker/u16:1+events_unbound07:37:525
2922690991613,2cyclictest3051494-21kworker/u16:0+flush-8:008:40:005
2922685991612,3cyclictest3388192-21kworker/u16:4+flush-8:012:25:184
2922692991513,2cyclictest3118539-21kworker/u16:0+flush-8:008:49:556
2922690991513,2cyclictest3069978-21kworker/u16:3+flush-8:008:25:015
2922690991513,2cyclictest3069978-21kworker/u16:3+flush-8:008:25:015
292268599150,1cyclictest0-21swapper/411:46:564
2922695991412,1cyclictest0-21swapper/711:15:037
292269599140,1cyclictest0-21swapper/710:40:007
2922685991413,1cyclictest0-21swapper/412:11:034
2922685991413,1cyclictest0-21swapper/409:44:354
292268599140,1cyclictest0-21swapper/410:50:024
292268599140,14cyclictest0-21swapper/412:31:144
33504712130,0sleep40-21swapper/410:27:514
2922692991311,2cyclictest2922308-21kworker/u16:0+flush-8:007:14:406
2922692991311,2cyclictest2849912-21kworker/u16:3+events_unbound08:09:556
292268599130,13cyclictest0-21swapper/408:01:294
292269599129,2cyclictest1234-21snmpd07:43:157
292269599129,2cyclictest1234-21snmpd07:43:157
292269299129,2cyclictest3157006-21kworker/u16:3+flush-8:009:14:406
292269299128,3cyclictest2975573-21cat07:34:536
2922692991210,2cyclictest3041279-21kworker/u16:2+flush-8:008:19:546
2922690991210,2cyclictest2849912-21kworker/u16:3+flush-8:007:30:025
2922685991211,1cyclictest0-21swapper/410:49:324
2922685991211,1cyclictest0-21swapper/408:35:034
292268599120,12cyclictest0-21swapper/407:26:104
292269599116,4cyclictest6101-21gmain11:09:557
292269299110,4cyclictest3137743-21/usr/sbin/munin08:59:586
292269299110,0cyclictest0-21swapper/607:58:536
292269299108,2cyclictest2931248-21kworker/u16:5+events_unbound07:21:486
292269299100,3cyclictest3153374-21grep09:04:576
292269099107,2cyclictest2931248-21kworker/u16:5+flush-8:007:49:455
292268599106,3cyclictest5827-21JS15:59:264
292268599105,4cyclictest827-21dbus-daemon11:44:374
292268599105,4cyclictest3438097-21cat11:04:524
292268599105,4cyclictest3279624-21if_err_p4p109:59:514
29226929990,2cyclictest3070849-21cpuspeed_turbos08:24:496
29226929990,2cyclictest3070849-21cpuspeed_turbos08:24:496
29226929990,2cyclictest2984384-21/usr/sbin/munin07:39:536
29226929990,2cyclictest2984384-21/usr/sbin/munin07:39:536
29226859997,1cyclictest3033024-21fschecks_time08:04:534
29226859994,4cyclictest3414504-21cut10:54:544
29226909985,3cyclictest2875279-21kworker/u16:1+flush-8:008:15:045
29226859986,1cyclictest0-21swapper/411:19:564
29226859986,1cyclictest0-21swapper/411:09:584
29226859986,1cyclictest0-21swapper/407:35:014
29226859985,2cyclictest35802102sleep412:00:084
29226859984,3cyclictest3662911-21kthreadcore12:34:594
29226859984,3cyclictest3662911-21kthreadcore12:34:594
29226859984,3cyclictest3559512-21fschecks_count11:54:514
29226859984,3cyclictest3499136-21cut11:29:534
29226859984,3cyclictest3250271-21kthreadcore09:45:004
29226859984,3cyclictest3163083-21kthreadcore09:09:584
29226859984,3cyclictest3142778-21cut08:59:544
29226859984,3cyclictest3131200-21cat08:54:554
29226859984,3cyclictest2946698-21tune2fs07:19:514
29226859983,4cyclictest3590372-21cut12:04:564
29226859983,4cyclictest3552527-21cut11:49:574
29226859983,4cyclictest3513002-21cut11:34:544
29226859983,4cyclictest3489526-21cat11:24:544
29226859983,4cyclictest3431733-21cut10:59:554
29226859983,4cyclictest3364296-21cpuspeed10:34:514
29226859983,4cyclictest3329913-21kthreadcore10:19:554
29226859983,4cyclictest3310674-21cut10:09:584
29226859983,4cyclictest3269506-21cut09:54:554
29226859983,4cyclictest3260888-21cut09:49:584
29226859983,4cyclictest3198618-21cut09:24:574
29226859983,4cyclictest3108982-21/usr/sbin/munin08:45:004
29226859983,4cyclictest3074118-21kthreadcore08:24:554
29226859983,4cyclictest3074118-21kthreadcore08:24:554
29226859983,4cyclictest3065824-21cut08:19:564
29226859983,4cyclictest3059008-21cut08:14:594
29226859983,4cyclictest3043139-21cut08:09:544
29226859983,4cyclictest3001028-21kthreadcore07:44:584
29226859983,4cyclictest2969066-21cat07:29:574
29226859980,7cyclictest3081296-21ps08:29:544
29226859975,1cyclictest0-21swapper/410:04:554
29226859975,1cyclictest0-21swapper/409:04:554
29226859974,2cyclictest5826-21JS15:59:264
29226859973,3cyclictest3609078-21cut12:14:544
29226859973,3cyclictest3462139-21entropy11:14:514
29226859973,3cyclictest3377177-21hwlatdetect10:39:524
29226859973,3cyclictest3170923-21cut09:14:554
29226859973,3cyclictest3013830-21grep07:54:524
29226859972,4cyclictest3352736-21hostname10:29:504
29226859972,4cyclictest3352736-21hostname10:29:504
29226859972,4cyclictest3316669-21cut10:14:534
29226859972,4cyclictest3219438-21cut09:34:564
29226859972,4cyclictest3118680-21wc08:49:494
29226859972,4cyclictest3099991-21tune2fs08:39:524
29226859972,4cyclictest3004224-21tune2fs07:49:514
29226859972,4cyclictest2985039-21perl07:39:534
29226859972,4cyclictest2985039-21perl07:39:534
29226859972,4cyclictest2933037-21expr07:14:404
29226859970,6cyclictest3620906-21kernelversion12:19:524
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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