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2026-04-01 - 15:21
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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
Characteristics of the 792 highest latencies:
System rackeslot2.osadl.org (updated Wed Apr 01, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301541521050,3sleep00-21swapper/010:31:170
29432852900,2sleep30-21swapper/309:46:153
30082032690,1sleep20-21swapper/210:26:222
29343262660,1sleep12934325-21ssh09:39:551
29384152330,2sleep30-21swapper/309:41:183
2736218992620,5cyclictest3206685-21grep12:40:020
383433398250,3rtkit-daemon3834332-21rtkit-daemon09:07:080
2736218992519,5cyclictest3092939-21grep11:25:000
273621899243,15cyclictest3146366-21cut12:01:080
2736218992418,5cyclictest2882857-21dump-pmu-power09:05:000
273621899241,2cyclictest2919524-21munin-run09:30:010
2736220992317,2cyclictest0-21swapper/207:36:112
2736219992320,2cyclictest3183382-21/usr/sbin/munin12:25:011
2736219992320,2cyclictest0-21swapper/107:20:001
2736218992317,5cyclictest2857844-21dump-pmu-power08:45:000
2736218992317,5cyclictest2838986-21cron08:30:000
2736218992316,5cyclictest3851702-21mta-sts-daemon11:05:010
2736218992312,6cyclictest0-21swapper/011:26:110
2736218992312,10cyclictest3084156-21unixbench_singl11:16:220
2736218992312,10cyclictest0-21swapper/012:25:020
2736218992216,5cyclictest1326-21systemd-logind07:30:000
2736218992214,6cyclictest3002653-21systemd-run10:25:010
2736218992213,8cyclictest3124170-21cstates11:46:130
2736218992211,7cyclictest3170593-21kthreadcore12:16:160
273621899220,6cyclictest3122882-21ssh11:44:230
2736220992116,2cyclictest0-21swapper/211:44:232
2736219992118,2cyclictest2743099-21grep07:15:021
273621899218,8cyclictest2974539-21cut10:06:160
273621899213,2cyclictest134050irq/121-eno112:14:360
2736218992116,4cyclictest2776379-21cron07:40:000
2736218992115,2cyclictest134050irq/121-eno110:30:010
2736218992111,9cyclictest0-21swapper/012:31:150
2736218992110,5cyclictest171ktimers/010:48:150
273621899210,17cyclictest3070548-21systemd-run11:10:010
273621899210,10cyclictest2932880-21switchtime09:36:220
29695142200,2sleep30-21swapper/310:01:183
29481852200,1sleep10-21swapper/109:46:251
273621999209,3cyclictest0-21swapper/110:56:231
2736219992017,2cyclictest3048027-21sh10:55:011
273621899209,9cyclictest0-21swapper/009:31:170
273621899205,11cyclictest2966218-21if_err_enp1s010:01:150
2736218992017,2cyclictest3880722-21gmain07:55:010
2736218992015,4cyclictest0-21swapper/007:15:030
2736218992014,5cyclictest2992969-21proc_pri10:16:190
2736218992014,5cyclictest2905793-21gltestperf09:21:130
2736218992014,5cyclictest2753023-21kthreadcore07:21:170
2736218992014,5cyclictest0-21swapper/010:40:010
2736218992014,4cyclictest0-21swapper/011:00:010
2736218992013,5cyclictest0-21swapper/012:10:030
273621899200,4cyclictest191rcu_preempt07:43:480
2736220991916,1cyclictest0-21swapper/210:15:012
2736220991916,1cyclictest0-21swapper/208:36:102
2736220991915,1cyclictest0-21swapper/210:01:102
2736219991916,2cyclictest3851875-21systemd-journal09:20:021
2736219991916,2cyclictest3824565-21in:imuxsock09:05:001
2736219991916,2cyclictest3191089-21apt-key12:30:011
2736219991916,2cyclictest2736212-21cyclictest10:05:211
2736219991914,3cyclictest3101513-21cstates11:31:121
273621899197,11cyclictest2817223-21kthreadcore08:11:170
273621899196,10cyclictest2936363-21irqstats09:41:160
273621899195,9cyclictest1-21systemd07:15:010
273621899195,12cyclictest0-21swapper/008:51:110
273621899195,10cyclictest3130956-21sshd11:50:080
273621899194,11cyclictest2980814-21cstates10:11:110
273621899194,10cyclictest2813963-21wc08:10:000
273621899193,2cyclictest134050irq/121-eno111:10:380
273621899192,12cyclictest2956889-21awk09:55:000
2736218991913,5cyclictest2958200-21grep09:56:130
2736218991913,5cyclictest2839709-21cpuspeed_turbos08:31:120
2736218991913,5cyclictest2828178-21kthreadcore08:21:170
2736218991913,5cyclictest2802940-21tr08:01:150
2736218991912,3cyclictest491rcuog/210:50:520
2736218991912,3cyclictest491rcuog/209:14:400
273622099189,3cyclictest0-21swapper/209:18:212
2736220991816,1cyclictest0-21swapper/210:15:052
2736220991815,1cyclictest0-21swapper/212:32:582
2736220991813,2cyclictest0-21swapper/210:07:152
2736220991811,2cyclictest0-21swapper/209:36:092
2736219991815,2cyclictest3827634-1atopacctd11:05:021
2736219991815,2cyclictest3206282-21apt-key12:40:001
2736219991815,2cyclictest2995154-21/usr/sbin/munin10:20:021
2736219991815,2cyclictest2964423-21sh10:00:001
2736219991815,2cyclictest1996-21runrttasks09:10:071
2736219991815,2cyclictest1-21systemd12:10:021
273621899189,6cyclictest2820766-21aten2.4-expect08:16:110
273621899189,4cyclictest134050irq/121-eno112:26:100
273621899188,9cyclictest0-21swapper/011:36:090
273621899187,10cyclictest0-21swapper/011:56:110
273621899184,9cyclictest241rcuc/011:31:180
2736218991812,5cyclictest2902526-21needreboot09:16:180
2736218991812,5cyclictest2785378-21kthreadcore07:46:160
2649091180,3phc2sys0-21swapper/307:31:103
2649091180,2phc2sys0-21swapper/311:46:213
2649091180,2phc2sys0-21swapper/310:14:223
2736220991714,1cyclictest0-21swapper/210:55:012
2736220991714,1cyclictest0-21swapper/209:21:102
2736220991713,2cyclictest0-21swapper/209:51:112
2736220991713,2cyclictest0-21swapper/208:16:092
2736219991714,2cyclictest3131916-21cut11:51:131
2736219991714,2cyclictest2876839-21systemd09:00:021
2736219991714,2cyclictest2864146-21munin-plugin-st08:50:001
2736219991714,2cyclictest1996-21runrttasks12:13:491
2736219991714,2cyclictest1-21systemd09:55:001
2736219991714,2cyclictest0-21swapper/107:30:001
2736219991713,3cyclictest2837291-21kthreadcore08:26:181
2736219991713,3cyclictest2792200-21kthreadcore07:51:171
2736219991712,3cyclictest2924351-21kthreadcore09:31:181
273621899172,10cyclictest3026499-21diskstats10:41:120
273621899171,4cyclictest1-21systemd08:50:000
273621899171,3cyclictest2795583-21apt-get07:56:090
2736218991711,5cyclictest2872063-21kthreadcore08:56:170
2736218991711,5cyclictest2846938-21irqrtprio08:36:150
273621899171,11cyclictest2736067-21latency_hist07:10:020
273621899170,5cyclictest1996-21runrttasks09:46:110
2649091177,2phc2sys0-21swapper/309:06:163
2649091173,3phc2sys0-21swapper/309:26:243
2649091171,4phc2sys0-21swapper/309:11:093
2649091170,2phc2sys0-21swapper/310:05:523
2649091170,2phc2sys0-21swapper/309:21:473
2649091170,1phc2sys0-21swapper/311:13:143
2736220991614,1cyclictest0-21swapper/212:16:102
2736220991614,1cyclictest0-21swapper/211:30:012
2736220991614,1cyclictest0-21swapper/207:11:112
2736220991613,1cyclictest0-21swapper/212:25:012
2736220991613,1cyclictest0-21swapper/211:49:182
2736220991613,1cyclictest0-21swapper/209:30:012
2736220991613,1cyclictest0-21swapper/207:20:022
2736220991612,2cyclictest0-21swapper/212:35:442
2736220991612,2cyclictest0-21swapper/212:29:512
273622099161,12cyclictest31369752sleep211:51:372
273622099160,13cyclictest0-21swapper/210:56:102
273621999163,5cyclictest491rcuog/211:06:441
2736219991613,2cyclictest3851704-21mta-sts-daemon11:40:441
2736219991613,2cyclictest3115714-21/usr/sbin/munin11:40:011
2736219991613,2cyclictest3010953-21ssh10:31:091
2736219991613,2cyclictest2858108-21latency_hist08:45:021
2736219991613,2cyclictest2779683-21kthreadcore07:41:151
2736219991612,3cyclictest2840826-21kthreadcore08:31:161
2736219991612,3cyclictest2816804-21kthreadcore08:11:151
2736219991612,3cyclictest2809402-21kthreadcore08:06:171
2736219991612,3cyclictest2765736-21kthreadcore07:31:161
273621999160,3cyclictest0-21swapper/112:19:341
2736218991610,5cyclictest2765665-21kthreadcore07:31:160
2649091161,4phc2sys0-21swapper/309:31:093
2649091160,2phc2sys0-21swapper/311:06:103
2649091160,2phc2sys0-21swapper/307:21:193
2649091160,1phc2sys0-21swapper/311:42:443
2649091160,1phc2sys0-21swapper/309:17:063
273622099159,1cyclictest0-21swapper/207:56:092
2736220991513,1cyclictest0-21swapper/211:34:012
2736220991513,1cyclictest0-21swapper/211:17:172
2736220991513,1cyclictest0-21swapper/211:15:022
2736220991513,1cyclictest0-21swapper/210:40:012
2736220991513,1cyclictest0-21swapper/209:45:012
2736220991513,1cyclictest0-21swapper/209:11:102
2736220991513,1cyclictest0-21swapper/208:56:112
2736220991513,1cyclictest0-21swapper/208:31:102
2736220991513,1cyclictest0-21swapper/207:23:402
2736220991512,1cyclictest0-21swapper/211:25:002
2736220991512,1cyclictest0-21swapper/210:43:322
2736220991512,1cyclictest0-21swapper/210:31:082
2736220991512,1cyclictest0-21swapper/210:25:002
2736220991512,1cyclictest0-21swapper/209:57:332
2736220991512,1cyclictest0-21swapper/208:51:092
2736220991512,1cyclictest0-21swapper/208:28:272
2736220991512,1cyclictest0-21swapper/207:41:092
2736220991512,1cyclictest0-21swapper/207:10:012
2736220991511,2cyclictest0-21swapper/210:49:392
2736220991511,1cyclictest0-21swapper/212:05:522
2736220991511,1cyclictest0-21swapper/207:26:102
2736219991512,2cyclictest3851703-21mta-sts-daemon10:25:301
2736219991512,2cyclictest3192751-21irqcore12:31:141
2736219991512,2cyclictest3078672-21aten2.4-expect11:16:091
2736219991512,2cyclictest2981965-21kthreadcore10:11:161
2736219991512,2cyclictest2913248-21gltestperf09:26:121
2736219991512,2cyclictest2801589-21systemd-run08:00:011
2736219991511,3cyclictest3851704-21mta-sts-daemon11:26:551
2736219991511,3cyclictest2999857-21kthreadcore10:21:211
2736219991511,3cyclictest2969107-21kthreadcore10:01:181
2736219991511,3cyclictest2866263-21kthreadcore08:51:161
2649091150,2phc2sys0-21swapper/311:51:433
2649091150,2phc2sys0-21swapper/307:36:113
2649091150,1phc2sys0-21swapper/308:59:553
2736220991412,1cyclictest0-21swapper/209:50:002
2736220991412,1cyclictest0-21swapper/208:41:092
2736220991411,1cyclictest0-21swapper/212:00:392
2736220991411,1cyclictest0-21swapper/211:55:472
2736220991411,1cyclictest0-21swapper/211:37:322
2736220991411,1cyclictest0-21swapper/211:05:372
2736220991411,1cyclictest0-21swapper/211:02:282
2736220991411,1cyclictest0-21swapper/209:31:092
2736220991411,1cyclictest0-21swapper/209:06:022
2736220991411,1cyclictest0-21swapper/209:03:352
2736220991411,1cyclictest0-21swapper/208:48:512
2736220991411,1cyclictest0-21swapper/208:06:142
2736220991411,1cyclictest0-21swapper/207:46:202
2736220991410,2cyclictest0-21swapper/208:01:152
2736220991410,2cyclictest0-21swapper/207:51:192
273621999149,4cyclictest3851704-21mta-sts-daemon11:58:421
273621999149,4cyclictest2614947-21GUsbEventThread07:47:061
273621999149,4cyclictest2614947-21GUsbEventThread07:24:591
2736219991411,2cyclictest3087056-21irqcore11:21:151
2736219991411,2cyclictest3072255-21irqrtprio11:11:141
2736219991411,2cyclictest3026521-21fschecks_count10:41:121
2736219991411,2cyclictest3019775-21kthreadcore10:36:171
2736219991411,2cyclictest2940408-21switchtime09:41:231
2736219991411,2cyclictest2827557-21gltestperf08:21:141
2736219991411,2cyclictest2823392-21kthreadcore08:16:171
2736219991410,3cyclictest3126735-21kthreadcore11:46:181
2736219991410,3cyclictest2907384-21kthreadcore09:21:161
2736219991410,3cyclictest2806415-21kthreadcore08:01:171
2736219991410,2cyclictest134050irq/121-eno110:46:171
2649091141,6phc2sys0-21swapper/307:26:103
2649091141,3phc2sys0-21swapper/309:51:103
2649091141,2phc2sys0-21swapper/311:31:103
2649091140,3phc2sys0-21swapper/311:39:553
2649091140,3phc2sys0-21swapper/307:41:083
2649091140,2phc2sys0-21swapper/312:23:193
2649091140,2phc2sys0-21swapper/312:15:453
2649091140,2phc2sys0-21swapper/310:45:533
2736220991311,1cyclictest0-21swapper/208:11:162
2736220991310,1cyclictest0-21swapper/212:11:112
2736220991310,1cyclictest0-21swapper/208:21:132
2736220991310,1cyclictest0-21swapper/207:31:182
273621999139,3cyclictest2883833-21fschecks_count09:06:121
2736219991310,2cyclictest3851703-21mta-sts-daemon12:00:261
2736219991310,2cyclictest3851702-21mta-sts-daemon07:36:101
2649091130,3phc2sys0-21swapper/307:46:093
2649091130,2phc2sys0-21swapper/312:11:543
2649091130,2phc2sys0-21swapper/311:15:033
273621999129,2cyclictest2850822-21rt-features08:36:211
2649091124,2phc2sys0-21swapper/312:38:203
2649091122,4phc2sys0-21swapper/308:26:103
2649091120,2phc2sys0-21swapper/310:31:223
2649091120,2phc2sys0-21swapper/308:53:253
2649091120,2phc2sys0-21swapper/308:41:073
2649091120,1phc2sys0-21swapper/308:15:423
273621999115,4cyclictest1290-21dbus-daemon07:10:021
2649091113,2phc2sys0-21swapper/307:16:033
2649091110,2phc2sys0-21swapper/312:09:453
2649091110,2phc2sys0-21swapper/312:03:123
2649091110,2phc2sys0-21swapper/310:58:473
2649091110,2phc2sys0-21swapper/309:56:233
2649091110,2phc2sys0-21swapper/309:37:463
2649091110,2phc2sys0-21swapper/308:13:023
2649091110,1phc2sys0-21swapper/311:22:203
2649091110,1phc2sys0-21swapper/307:11:073
2649091110,1phc2sys0-21swapper/307:05:573
2649091103,1phc2sys0-21swapper/310:41:163
2649091102,3phc2sys0-21swapper/308:06:163
2649091102,2phc2sys0-21swapper/310:19:113
2649091101,2phc2sys0-21swapper/311:00:483
2649091101,2phc2sys0-21swapper/310:21:123
2649091101,2phc2sys0-21swapper/308:36:183
2649091100,4phc2sys0-21swapper/310:51:093
2649091100,4phc2sys0-21swapper/307:51:093
2649091100,2phc2sys0-21swapper/312:32:153
2649091100,2phc2sys0-21swapper/311:25:133
2649091100,2phc2sys0-21swapper/310:35:433
2649091100,2phc2sys0-21swapper/308:46:123
2649091100,1phc2sys0-21swapper/308:31:373
264909191,3phc2sys0-21swapper/308:21:183
264909191,2phc2sys0-21swapper/311:55:393
264909190,2phc2sys0-21swapper/312:26:103
264909190,2phc2sys0-21swapper/310:25:453
264909190,2phc2sys0-21swapper/309:01:113
264909190,2phc2sys0-21swapper/308:01:203
264909190,2phc2sys0-21swapper/307:56:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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