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2026-06-11 - 17:07
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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 Thu Jun 11, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38857282920,1sleep70-21swapper/711:01:307
3367602995553,2cyclictest3399521-21kworker/u16:2+flush-8:008:11:364
3367602995148,2cyclictest3399521-21kworker/u16:2+flush-8:007:21:364
336709324737,7sleep40-21swapper/407:02:484
3367602994340,2cyclictest3638403-21kworker/u16:2+events_unbound09:36:134
336715024333,7sleep50-21swapper/507:03:375
3367602994038,2cyclictest3582918-21kworker/u16:3+events_unbound10:21:124
33670672393,31sleep70-21swapper/707:02:277
3367607993734,2cyclictest3795707-21kworker/u16:1+events_unbound12:16:246
3367602993734,2cyclictest3582918-21kworker/u16:3+flush-8:010:05:364
3367602993634,2cyclictest3592228-21kworker/u16:4+flush-8:009:56:564
3367602993533,2cyclictest3795707-21kworker/u16:1+events_unbound10:53:524
3367602993533,2cyclictest3722883-21kworker/u16:0+events_unbound10:10:214
3367602993533,2cyclictest3638403-21kworker/u16:2+flush-8:009:21:444
3367602993533,2cyclictest3399521-21kworker/u16:2+events_unbound08:06:114
3367602993532,2cyclictest3592228-21kworker/u16:4+events_unbound09:11:494
3367602993532,2cyclictest3592228-21kworker/u16:4+events_unbound09:11:494
3367608993429,4cyclictest3795274-21latency_hist10:26:107
3367602993432,2cyclictest3638403-21kworker/u16:2+events_unbound10:39:324
3367602993230,2cyclictest3795707-21kworker/u16:1+events_unbound12:00:524
3367602993230,2cyclictest3795707-21kworker/u16:1+events_unbound11:44:434
3367602993230,2cyclictest3638403-21kworker/u16:2+events_unbound10:20:564
38171422310,1chrt3817140-21ssh10:31:577
3367602993129,2cyclictest3988460-21kworker/u16:2+events_unbound12:18:514
3367602993129,2cyclictest3988460-21kworker/u16:2+events_unbound12:02:324
3367602993129,2cyclictest3582918-21kworker/u16:3+flush-8:009:47:084
3367602993129,2cyclictest3582918-21kworker/u16:3+flush-8:009:47:084
3367602993127,3cyclictest3843942-21kworker/u16:0+flush-8:010:56:254
336726523121,7sleep60-21swapper/607:05:146
3367606993028,2cyclictest3592228-21kworker/u16:4+events_unbound10:16:365
3367602993028,2cyclictest3913479-21kworker/u16:0+events_unbound11:39:404
3367602993028,2cyclictest3795707-21kworker/u16:1+flush-8:012:13:564
3367602993028,2cyclictest3795707-21kworker/u16:1+flush-8:010:47:554
3367602993028,2cyclictest3638403-21kworker/u16:2+events_unbound10:31:004
3367602993028,2cyclictest3582918-21kworker/u16:3+flush-8:011:05:404
3367602993027,2cyclictest3638403-21kworker/u16:2+flush-8:010:41:114
3367602993027,2cyclictest3582918-21kworker/u16:3+flush-8:009:51:164
3367608992928,0cyclictest0-21swapper/709:06:257
3367602992927,2cyclictest3988460-21kworker/u16:2+flush-8:012:26:514
3367602992927,2cyclictest3913479-21kworker/u16:0+flush-8:011:20:004
3367602992927,2cyclictest3795707-21kworker/u16:1+flush-8:011:13:114
3367602992927,2cyclictest3795707-21kworker/u16:1+flush-8:010:35:074
3367602992927,2cyclictest3795707-21kworker/u16:1+events_unbound11:33:324
3367602992927,2cyclictest3614159-21kworker/u16:1+events_unbound09:20:044
3367602992927,2cyclictest3582918-21kworker/u16:3+events_unbound11:53:324
3367602992927,2cyclictest3582918-21kworker/u16:3+events_unbound11:53:324
3367602992927,2cyclictest3582918-21kworker/u16:3+events_unbound09:27:414
3367602992926,2cyclictest3988460-21kworker/u16:2+events_unbound12:06:204
3367608992827,0cyclictest0-21swapper/710:29:077
3367602992826,2cyclictest3928241-21kworker/u16:2+events_unbound11:30:194
3367602992826,2cyclictest3928241-21kworker/u16:2+events_unbound11:25:324
3367602992826,2cyclictest3879752-21kworker/u16:2+events_unbound11:07:564
3367602992826,2cyclictest3879752-21kworker/u16:2+events_unbound11:07:564
3367602992826,2cyclictest3592228-21kworker/u16:4+events_unbound09:35:324
3367608992726,0cyclictest0-21swapper/707:46:337
3367608992724,2cyclictest3745777-21ssh10:03:567
3367608992722,4cyclictest635-21systemd-journal09:31:057
3367608992722,4cyclictest635-21systemd-journal08:01:057
3367602992725,2cyclictest3602418-21kworker/u16:0+events_unbound09:06:174
3367602992725,2cyclictest3582918-21kworker/u16:3+events_unbound12:23:324
3367608992625,0cyclictest0-21swapper/710:36:307
3367608992625,0cyclictest0-21swapper/708:46:257
3367606992624,2cyclictest3377237-21kworker/u16:4+flush-8:007:36:335
3367602992625,1cyclictest3348584-21kworker/u16:1+events_unbound07:16:004
3367602992624,2cyclictest3399521-21kworker/u16:2+events_unbound09:06:054
3367602992523,2cyclictest3988460-21kworker/u16:2+flush-8:011:48:204
3367602992523,2cyclictest3988460-21kworker/u16:2+flush-8:011:48:204
3367602992523,2cyclictest3988460-21kworker/u16:2+events_unbound12:31:434
3367602992523,2cyclictest3988460-21kworker/u16:2+events_unbound12:31:434
3367602992523,2cyclictest3399521-21kworker/u16:2+flush-8:007:51:364
3367608992423,0cyclictest0-21swapper/712:32:327
3367608992423,0cyclictest0-21swapper/712:32:327
3367602992422,2cyclictest3722883-21kworker/u16:0+events_unbound10:12:244
3367602992421,2cyclictest3468008-21kworker/u16:0+events_unbound08:36:134
3367608992322,0cyclictest0-21swapper/708:06:317
3367608992321,1cyclictest3602178-21diskmemload12:16:307
3367608992317,5cyclictest4096436-21latency_hist12:31:097
3367606992319,3cyclictest3592228-21kworker/u16:4+events_unbound09:56:275
3367602992321,2cyclictest3582918-21kworker/u16:3+events_unbound09:42:194
3367602992321,2cyclictest3377237-21kworker/u16:4+flush-8:007:39:214
3367608992120,0cyclictest0-21swapper/710:16:257
3367602992119,2cyclictest3487232-21kworker/u16:1+flush-8:008:22:214
3367602992119,2cyclictest3487232-21kworker/u16:1+events_unbound08:06:274
3367602992119,2cyclictest3377237-21kworker/u16:4+flush-8:007:46:264
3367608992019,0cyclictest0-21swapper/708:56:237
3367608992019,0cyclictest0-21swapper/708:21:307
3367608992019,0cyclictest0-21swapper/707:36:397
3367608992018,1cyclictest4045896-21ssh12:06:447
3367608992018,1cyclictest4000046-21ssh11:51:057
3367608992018,1cyclictest4000046-21ssh11:51:057
3367608992017,2cyclictest3624197-21ssh09:12:197
3367608992017,2cyclictest3624197-21ssh09:12:197
336760899200,18cyclictest3927816-21latency_hist11:21:107
3367607992017,2cyclictest3582918-21kworker/u16:3+flush-8:010:06:406
3367606992018,2cyclictest3913479-21kworker/u16:0+events_unbound11:36:365
3367602992018,2cyclictest3468008-21kworker/u16:0+events_unbound08:19:214
3367608991918,0cyclictest0-21swapper/708:36:377
3367608991917,1cyclictest4035540-21ssh12:04:567
3367608991917,1cyclictest3936991-21ssh11:21:367
3367602991916,2cyclictest3348584-21kworker/u16:1+flush-8:007:06:254
3367608991816,1cyclictest0-21swapper/709:31:367
3367608991816,1cyclictest0-21swapper/709:21:267
3367606991816,2cyclictest3722883-21kworker/u16:0+events_unbound10:01:375
3367606991815,2cyclictest3988460-21kworker/u16:2+flush-8:012:11:265
3367602991816,2cyclictest3582918-21kworker/u16:3+events_unbound08:59:194
3367602991815,2cyclictest3468008-21kworker/u16:0+flush-8:008:26:204
3367602991815,2cyclictest3468008-21kworker/u16:0+flush-8:008:26:204
3367608991716,0cyclictest0-21swapper/709:36:357
3367608991716,0cyclictest0-21swapper/707:16:237
3367606991715,2cyclictest3399521-21kworker/u16:2+events_unbound08:36:255
3367608991615,0cyclictest0-21swapper/711:51:397
3367608991615,0cyclictest0-21swapper/711:51:397
3367608991614,1cyclictest0-21swapper/710:56:327
336760899160,14cyclictest0-21swapper/710:06:347
3367607991612,3cyclictest4045400-21smart_sda12:06:376
3367606991614,2cyclictest3795707-21kworker/u16:1+flush-8:012:26:245
3367606991613,2cyclictest3638403-21kworker/u16:2+flush-8:010:36:395
3367602991613,2cyclictest3399521-21kworker/u16:2+events_unbound08:41:224
3367608991514,0cyclictest0-21swapper/707:31:407
336760899150,14cyclictest0-21swapper/707:06:347
336760899150,13cyclictest3602178-21diskmemload09:51:347
3367607991514,1cyclictest0-21swapper/611:40:476
3367607991514,1cyclictest0-21swapper/609:12:076
3367607991514,1cyclictest0-21swapper/609:12:076
3367607991513,2cyclictest3487232-21kworker/u16:1+flush-8:008:31:366
336760699150,15cyclictest0-21swapper/509:34:195
3367602991512,2cyclictest3399521-21kworker/u16:2+flush-8:007:26:274
336760899149,4cyclictest6382-21gvfs-afc-volume08:16:317
3367608991413,0cyclictest0-21swapper/712:16:077
3367608991412,1cyclictest0-21swapper/710:11:287
3367608991412,1cyclictest0-21swapper/709:16:337
336760899140,1cyclictest0-21swapper/707:41:357
336760899140,12cyclictest3866552-21ssh10:54:087
3367607991413,1cyclictest0-21swapper/612:34:246
3367607991413,1cyclictest0-21swapper/612:34:246
3367607991413,1cyclictest0-21swapper/611:23:276
336760799140,1cyclictest0-21swapper/609:51:236
336760799140,14cyclictest0-21swapper/612:03:496
336760799140,14cyclictest0-21swapper/610:31:166
336760799140,14cyclictest0-21swapper/610:29:226
336760799140,14cyclictest0-21swapper/609:50:356
336760799140,14cyclictest0-21swapper/609:50:356
336760799140,13cyclictest0-21swapper/607:06:346
3367606991413,1cyclictest0-21swapper/512:06:085
3367606991413,1cyclictest0-21swapper/511:23:255
3367606991413,1cyclictest0-21swapper/509:55:555
3367606991413,1cyclictest0-21swapper/509:06:155
336760699140,13cyclictest0-21swapper/507:31:205
3367602991412,2cyclictest3348584-21kworker/u16:1+flush-8:007:18:214
336760899137,5cyclictest6382-21gvfs-afc-volume07:26:257
336760899135,7cyclictest5975-21gmain09:43:437
3367608991312,0cyclictest0-21swapper/711:31:337
3367608991312,0cyclictest0-21swapper/710:45:127
3367608991310,2cyclictest0-21swapper/711:11:377
3367607991312,1cyclictest0-21swapper/610:46:056
336760799130,13cyclictest0-21swapper/612:25:256
336760699138,4cyclictest3368613-21cat07:06:255
3367606991312,1cyclictest0-21swapper/507:24:155
3367606991312,1cyclictest0-21swapper/507:16:415
3367606991311,2cyclictest3722883-21kworker/u16:0+flush-8:010:21:365
3367606991311,2cyclictest3582918-21kworker/u16:3+flush-8:012:06:345
3367602991311,2cyclictest3468008-21kworker/u16:0+flush-8:007:56:344
3367602991310,2cyclictest3487232-21kworker/u16:1+events_unbound08:31:124
336760899129,2cyclictest1234-21snmpd09:56:447
336760899129,2cyclictest0-21swapper/711:36:117
336760899129,2cyclictest0-21swapper/708:01:117
336760899128,3cyclictest6382-21gvfs-afc-volume08:26:237
336760899128,3cyclictest6382-21gvfs-afc-volume08:26:237
336760899128,3cyclictest1234-21snmpd12:24:247
336760899128,3cyclictest1234-21snmpd07:13:457
336760899127,4cyclictest3710779-21latency_hist09:51:107
336760899127,4cyclictest3710779-21latency_hist09:51:107
336760899127,4cyclictest1234-21snmpd07:55:347
336760899126,5cyclictest6382-21gvfs-afc-volume08:51:227
3367608991211,1cyclictest0-21swapper/708:41:337
3367608991211,0cyclictest0-21swapper/708:31:367
336760799128,3cyclictest3507249-21iostat_ios08:16:276
336760799128,3cyclictest3468804-21cat07:56:256
336760799127,4cyclictest3555312-21iostat_ios08:41:256
336760799127,4cyclictest3380735-21cat07:11:146
336760799123,8cyclictest3873434-21cut10:56:306
336760799122,9cyclictest0-21swapper/609:36:296
3367607991211,1cyclictest0-21swapper/612:14:036
3367607991211,1cyclictest0-21swapper/611:53:536
3367607991211,1cyclictest0-21swapper/611:53:536
3367607991211,1cyclictest0-21swapper/608:25:086
3367606991211,1cyclictest0-21swapper/512:16:335
3367606991211,1cyclictest0-21swapper/511:55:355
3367606991211,1cyclictest0-21swapper/511:55:355
3367606991211,1cyclictest0-21swapper/508:17:415
3367606991211,1cyclictest0-21swapper/507:44:255
3367606991210,2cyclictest3795707-21kworker/u16:1+flush-8:011:41:415
3367602991210,2cyclictest3487232-21kworker/u16:1+events_unbound08:51:284
336760899118,2cyclictest0-21swapper/711:41:367
336760899117,3cyclictest1234-21snmpd11:29:047
336760899117,3cyclictest1234-21snmpd09:02:097
336760899116,5cyclictest6382-21gvfs-afc-volume10:50:347
336760799119,2cyclictest86-21ksoftirqd/610:19:246
336760799117,3cyclictest3582918-21kworker/u16:3+flush-8:009:56:146
3367607991110,1cyclictest0-21swapper/607:56:086
336760799110,3cyclictest3493486-21kthreadcore08:06:306
336760799110,10cyclictest3907197-21kthreadcore11:11:276
336760799110,10cyclictest3590014-21cut08:56:316
336760699119,2cyclictest3582918-21kworker/u16:3+flush-8:011:26:245
336760699119,2cyclictest3348584-21kworker/u16:1+events_unbound07:11:135
336760699118,2cyclictest3468008-21kworker/u16:0+flush-8:008:31:415
336760699110,1cyclictest0-21swapper/507:28:495
336760899108,1cyclictest0-21swapper/711:07:017
336760899108,1cyclictest0-21swapper/711:07:017
336760899105,4cyclictest6382-21gvfs-afc-volume07:21:297
336760799108,2cyclictest86-21ksoftirqd/612:26:506
336760799108,2cyclictest86-21ksoftirqd/611:08:596
336760799108,2cyclictest86-21ksoftirqd/611:08:596
336760799108,2cyclictest86-21ksoftirqd/609:43:206
336760799108,2cyclictest86-21ksoftirqd/609:29:106
336760799107,2cyclictest3391048-21/usr/sbin/munin07:16:376
336760799106,3cyclictest3953228-21cat11:31:256
336760799106,3cyclictest3640120-21ps09:21:276
336760799106,3cyclictest3478699-21irqcore08:01:266
336760799105,4cyclictest4013214-21fschecks_count11:56:246
336760799105,4cyclictest3844628-21fschecks_time10:46:236
336760799100,9cyclictest3993783-21kthreadcore11:46:286
336760799100,9cyclictest3993783-21kthreadcore11:46:286
336760799100,9cyclictest3738589-21kthreadcore10:01:276
336760799100,9cyclictest3529514-21cat08:26:296
336760799100,9cyclictest3529514-21cat08:26:296
336760799100,9cyclictest3425537-21grep07:31:296
336760799100,9cyclictest0-21swapper/611:01:286
336760799100,3cyclictest3925101-21sed11:16:376
336760699108,1cyclictest0-21swapper/509:41:295
336760699105,4cyclictest3884136-21grep11:01:295
336760699104,5cyclictest3582918-21kworker/u16:3+flush-8:010:11:105
33676089996,2cyclictest1234-21snmpd08:12:327
33676089996,2cyclictest0-21swapper/711:56:237
33676079997,2cyclictest3592228-21kworker/u16:4+flush-8:009:01:266
33676079997,1cyclictest3984948-21ntpq11:41:326
33676079997,1cyclictest3553156-21ntpq08:36:346
33676079996,2cyclictest3496825-21/usr/sbin/munin08:11:236
33676079996,2cyclictest0-21swapper/607:41:316
33676079995,3cyclictest3608691-21cut09:06:296
33676079993,5cyclictest0-21swapper/610:11:286
33676079991,2cyclictest0-21swapper/607:46:396
33676079990,8cyclictest3949313-21sed11:26:386
33676079990,8cyclictest3864569-21ntpq10:51:346
33676079990,8cyclictest3787688-21kthreadcore10:21:286
33676079990,8cyclictest3665560-21kthreadcore09:31:286
33676079990,8cyclictest3581988-21ntp_kernel_pll_08:51:346
33676079990,3cyclictest3821835-21kthreadcore10:36:296
33676079990,3cyclictest3627022-21seq09:16:226
33676079990,2cyclictest0-21swapper/607:36:286
33676069998,1cyclictest0-21swapper/507:56:285
33676069996,2cyclictest3399521-21kworker/u16:2+flush-8:007:51:275
33676069995,3cyclictest3497604-21cat08:11:245
33676079986,1cyclictest0-21swapper/607:21:236
33676079980,7cyclictest3415904-21kthreadcore07:26:296
33676069986,1cyclictest0-21swapper/511:56:285
33676069986,1cyclictest0-21swapper/510:31:225
33676069985,2cyclictest3989382-21sort11:46:255
33676069985,2cyclictest3989382-21sort11:46:255
33676069985,2cyclictest3486369-21timerwakeupswit08:01:385
33676069984,3cyclictest3861187-21cut10:51:295
33676069984,3cyclictest3801429-21kthreadcore10:26:285
33676069984,3cyclictest3449313-21forks07:46:255
33676069983,4cyclictest3920135-21cut11:16:275
33676069983,4cyclictest3840086-21cut10:41:305
33676069983,4cyclictest3764336-21cut10:11:285
33676069983,4cyclictest3652191-21cut09:26:255
33676069983,4cyclictest3627003-21expr09:16:215
33676069983,4cyclictest3575924-21cut08:51:275
33676069983,4cyclictest0-21swapper/511:06:295
33676069983,4cyclictest0-21swapper/511:06:295
33676069982,5cyclictest3488199-21irqcore08:06:265
33676069980,1cyclictest0-21swapper/508:21:265
33676029985,2cyclictest3377237-21kworker/u16:4+events_unbound07:31:164
33676029984,3cyclictest3440742-21kthreadcore07:41:274
33676069975,1cyclictest0-21swapper/512:31:275
33676069975,1cyclictest0-21swapper/512:31:275
33676069975,1cyclictest0-21swapper/510:56:235
33676069975,1cyclictest0-21swapper/509:46:225
33676069975,1cyclictest0-21swapper/509:46:225
33676069974,3cyclictest3913479-21kworker/u16:0+flush-8:011:31:265
33676069974,2cyclictest3639074-21grep09:21:225
33676069974,2cyclictest3593871-21irqcore09:01:275
33676069973,3cyclictest4073139-21cstates12:21:225
33676069973,3cyclictest3675878-21irqcore09:36:255
33676069973,3cyclictest3586434-21cut08:56:285
33676069973,3cyclictest3560286-21grep08:41:305
33676069972,4cyclictest3904344-21cat11:11:215
33676069972,4cyclictest3844267-21grep10:46:225
33676069972,4cyclictest3616443-21kthreadcore09:11:275
33676069972,4cyclictest3616443-21kthreadcore09:11:275
33676069972,4cyclictest3530709-21kthreadcore08:26:295
33676069972,4cyclictest3530709-21kthreadcore08:26:295
33676079964,1cyclictest0-21swapper/608:46:226
33676029963,2cyclictest3564113-21cpu08:46:224
33676069950,4cyclictest3564113-21cpu08:46:225
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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