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2026-03-24 - 08:26
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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 highest latencies:
System rackeslot2.osadl.org (updated Tue Mar 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274685299253,5cyclictest191rcu_preempt23:50:010
2746852992316,6cyclictest3055072-21cut22:41:280
29043992220,1sleep20-21swapper/221:16:232
2746854992219,1cyclictest0-21swapper/223:25:002
2746853992218,2cyclictest0-21swapper/123:15:001
2746853992216,2cyclictest134050irq/121-eno121:45:011
2746854992119,1cyclictest0-21swapper/223:05:012
2746854992118,1cyclictest0-21swapper/223:00:002
2746854992118,1cyclictest0-21swapper/221:15:002
2746853992118,2cyclictest3033737-21apt22:30:001
2746853992114,3cyclictest3245909-21sed00:31:251
2746852992118,2cyclictest2746850-21cyclictest23:05:000
2902298200,3rtkit-daemon0-21swapper/022:45:360
2746854992018,1cyclictest0-21swapper/220:55:012
2746854992017,1cyclictest0-21swapper/222:00:012
2746854992017,1cyclictest0-21swapper/200:20:002
2746852992017,2cyclictest1326-21systemd-logind19:15:010
2746852992012,4cyclictest2753112-21munin-node00:02:530
2746852992011,5cyclictest3130170-21runrttasks23:25:070
2649091200,1phc2sys0-21swapper/300:15:363
274685499195,8cyclictest0-21swapper/223:50:012
274685399192,6cyclictest3200580-21apt-get00:06:221
2746853991916,2cyclictest3234922-21apt-config00:25:011
2746852991916,2cyclictest1288-1atopacctd00:00:020
274685299191,4cyclictest2846174-21munin-run20:30:010
274685299190,2cyclictest2858297-21munin-run20:40:010
2649091190,2phc2sys0-21swapper/323:21:423
2902298180,3rtkit-daemon1286-21avahi-daemon20:07:121
2746854991816,1cyclictest0-21swapper/223:20:022
2746854991816,1cyclictest0-21swapper/221:55:012
2746854991816,1cyclictest0-21swapper/200:15:002
2746854991815,1cyclictest0-21swapper/223:43:102
2746854991815,1cyclictest0-21swapper/222:50:022
2746854991815,1cyclictest0-21swapper/200:25:002
274685399189,4cyclictest0-21swapper/121:50:021
2746853991815,2cyclictest3068523-21turbostat22:50:011
2746853991815,2cyclictest2773277-21turbostat19:30:001
2746853991815,2cyclictest2767474-21munin-plugin-st19:25:021
2746853991814,3cyclictest2812986-21kthreadcore20:01:301
2746853991811,3cyclictest3103709-21latency_hist23:10:011
274685299189,1cyclictest191rcu_preempt22:15:170
274685299188,6cyclictest3086089-21munin-run23:00:000
274685299182,3cyclictest2964283-21systemd-run21:50:010
2746852991817,1cyclictest0-21swapper/021:15:230
2746852991812,5cyclictest2987712-21ptp4l22:01:320
2746852991811,3cyclictest191rcu_preempt23:33:280
274685299180,7cyclictest3201776-21irqrtprio00:06:280
2649091180,3phc2sys0-21swapper/322:10:013
2649091180,2phc2sys0-21swapper/322:52:043
2649091180,2phc2sys0-21swapper/322:38:543
2649091180,1phc2sys0-21swapper/321:43:183
274685499172,8cyclictest0-21swapper/221:30:012
2746854991715,1cyclictest0-21swapper/200:06:262
2746854991714,1cyclictest0-21swapper/222:43:302
2746854991714,1cyclictest0-21swapper/222:25:002
2746854991714,1cyclictest0-21swapper/222:06:212
2746853991714,2cyclictest3210407-21irqrtprio00:11:281
2746853991714,2cyclictest3020315-21kthreadcore22:21:291
2746853991714,2cyclictest2753314-21timerandwakeup19:15:021
2746853991714,2cyclictest1290-21dbus-daemon21:10:001
2746853991714,2cyclictest1288-1atopacctd21:11:271
2746853991714,2cyclictest1288-1atopacctd20:45:001
2746853991714,2cyclictest0-21swapper/122:40:011
2746853991713,3cyclictest3081363-21kthreadcore22:56:251
2746853991713,3cyclictest2986481-21kthreadcore22:01:291
2746853991713,3cyclictest1327-21in:imuxsock20:00:011
274685299178,5cyclictest0-21swapper/000:20:020
274685299176,1cyclictest134050irq/121-eno121:31:220
274685299176,1cyclictest134050irq/121-eno121:31:220
2746852991714,2cyclictest3130032-21systemd-run23:25:020
2746852991714,2cyclictest3007729-21grep22:15:010
2746852991714,2cyclictest1326-21systemd-logind21:15:010
2746852991714,2cyclictest1326-21systemd-logind20:00:010
2746852991714,2cyclictest1288-1atopacctd20:25:000
2746852991713,1cyclictest501rcuop/223:11:300
2746852991712,4cyclictest2785828-21kworker/u16:1-nfsiod21:56:390
2746852991710,3cyclictest191rcu_preempt22:26:490
274685299170,5cyclictest2941074-21kthreadcore21:36:270
274685299170,10cyclictest2815863-21munin-run20:05:000
2649091170,2phc2sys0-21swapper/323:17:133
2649091170,2phc2sys0-21swapper/321:36:053
2746854991613,1cyclictest0-21swapper/223:58:162
2746854991613,1cyclictest0-21swapper/222:15:432
2746854991613,1cyclictest0-21swapper/221:35:562
2746854991613,1cyclictest0-21swapper/221:10:012
2746854991613,1cyclictest0-21swapper/220:06:222
2746854991613,1cyclictest0-21swapper/219:13:372
2746854991612,2cyclictest0-21swapper/222:26:262
2746854991610,1cyclictest0-21swapper/223:26:282
274685399168,4cyclictest2992078-21head22:06:231
2746853991613,2cyclictest3183909-21sed23:56:251
2746853991613,2cyclictest3170827-21sendmail_mailtr23:46:321
2746853991613,2cyclictest3060097-21cut22:45:021
2746853991613,2cyclictest2786652-21fschecks_time19:41:231
2746853991613,2cyclictest1286-21avahi-daemon21:30:011
2746853991613,2cyclictest0-21swapper/123:20:011
2746853991613,2cyclictest0-21swapper/121:20:001
2746853991612,3cyclictest3125183-21kthreadcore23:21:291
2746853991611,2cyclictest134050irq/121-eno123:26:261
274685299169,4cyclictest191rcu_preempt23:09:410
274685299166,6cyclictest3216876-21kworker/0:1+rcu_gp00:30:010
274685299165,6cyclictest2398885-21kworker/u16:2+xprtiod21:24:170
274685299164,2cyclictest191rcu_preempt22:36:290
274685299164,1cyclictest191rcu_preempt00:21:270
2746852991614,1cyclictest3025200-21cut22:25:010
2746852991613,2cyclictest3216833-21perf00:15:000
2746852991613,2cyclictest257-21systemd-journal23:40:000
2746852991611,4cyclictest3247579-21kthreadcore00:31:270
2746852991611,4cyclictest1288-1atopacctd20:56:290
2746852991611,1cyclictest191rcu_preempt21:26:350
274685299160,6cyclictest0-21swapper/019:41:200
2649091160,2phc2sys0-21swapper/323:48:223
2649091160,2phc2sys0-21swapper/321:18:143
2649091160,2phc2sys0-21swapper/300:36:443
2649091160,2phc2sys0-21swapper/300:05:463
2902298150,1rtkit-daemon0-21swapper/123:37:231
2746854991513,1cyclictest0-21swapper/222:39:532
2746854991513,1cyclictest0-21swapper/222:31:302
2746854991513,1cyclictest0-21swapper/221:01:312
2746854991513,1cyclictest0-21swapper/220:20:022
2746854991513,1cyclictest0-21swapper/219:16:332
2746854991513,1cyclictest0-21swapper/200:03:582
2746854991512,2cyclictest0-21swapper/219:35:022
2746854991512,1cyclictest0-21swapper/223:50:282
2746854991512,1cyclictest0-21swapper/223:36:292
2746854991512,1cyclictest0-21swapper/223:31:212
2746854991512,1cyclictest0-21swapper/223:11:302
2746854991512,1cyclictest0-21swapper/222:11:282
2746854991512,1cyclictest0-21swapper/222:01:222
2746854991512,1cyclictest0-21swapper/221:46:052
2746854991512,1cyclictest0-21swapper/220:00:322
2746854991512,1cyclictest0-21swapper/219:56:292
2746854991512,1cyclictest0-21swapper/219:26:282
2746854991512,1cyclictest0-21swapper/200:31:272
2746854991512,1cyclictest0-21swapper/200:26:362
2746853991512,2cyclictest3243697-21latency_hist00:30:001
2746853991512,2cyclictest3192594-21gltestperf00:01:231
2746853991512,2cyclictest3175520-21grep23:51:271
2746853991512,2cyclictest2913573-21fschecks_time21:21:251
2746853991512,2cyclictest2853605-21irqrtprio20:36:281
2746853991512,2cyclictest2779401-21systemd-run19:35:011
2746853991512,2cyclictest2398885-21kworker/u16:2-rpciod22:16:121
2746853991511,3cyclictest2976797-21kthreadcore21:56:271
2746853991511,3cyclictest2964170-21kworker/u16:3+nfsiod22:11:201
2746853991511,3cyclictest2398885-21kworker/u16:2+nfsiod23:41:441
274685299159,5cyclictest601rcuop/323:44:210
274685299157,4cyclictest0-21swapper/023:16:210
274685299157,4cyclictest0-21swapper/000:40:020
274685299156,6cyclictest501rcuop/221:50:180
274685299156,1cyclictest0-21swapper/022:51:480
274685299151,9cyclictest2883595-21irqcore21:01:270
2746852991513,1cyclictest29021-21rtkit-daemon19:35:490
2746852991512,2cyclictest3035432-21fschecks_count22:31:220
2746852991512,2cyclictest2852285-21systemd-run20:35:020
2746852991512,2cyclictest2826571-21kthreadcore20:11:300
2746852991512,2cyclictest2746850-21cyclictest22:05:410
2746852991511,4cyclictest2398885-21kworker/u16:2-rpciod23:50:520
274685299150,4cyclictest1996-21runrttasks21:40:440
274685299150,3cyclictest2863552-21runrttasks20:41:300
2649091150,5phc2sys0-21swapper/319:06:213
2649091150,2phc2sys0-21swapper/323:14:003
2649091150,2phc2sys0-21swapper/300:00:213
2649091150,1phc2sys0-21swapper/323:55:533
2746854991412,1cyclictest0-21swapper/221:21:282
2746854991412,1cyclictest0-21swapper/220:46:262
2746854991412,1cyclictest0-21swapper/220:44:322
2746854991412,1cyclictest0-21swapper/220:28:322
2746854991411,2cyclictest0-21swapper/219:50:022
2746854991411,1cyclictest0-21swapper/221:41:292
2746854991411,1cyclictest0-21swapper/220:56:312
2746854991411,1cyclictest0-21swapper/220:31:302
2746854991410,2cyclictest0-21swapper/223:06:282
2746854991410,2cyclictest0-21swapper/220:36:302
2746854991410,2cyclictest0-21swapper/200:36:222
274685399146,4cyclictest2894344-21diskmemload00:17:281
274685399143,2cyclictest3256498-21kthreadcore00:36:311
2746853991411,2cyclictest2966022-21head21:51:241
2746853991411,2cyclictest2883479-21idleruntime21:01:261
2746853991411,2cyclictest2864586-21acpi20:46:221
2746853991411,2cyclictest2824805-21kthreadcore20:11:291
2746853991411,2cyclictest2803322-21unixbench-2d19:51:331
2746853991411,2cyclictest0-21swapper/122:35:011
2746853991410,3cyclictest2941682-21kthreadcore21:36:271
2746853991410,3cyclictest2837172-21kthreadcore20:21:291
2746853991410,3cyclictest2783244-21kthreadcore19:36:291
274685299146,2cyclictest0-21swapper/021:06:220
274685299145,5cyclictest0-21swapper/019:29:130
274685299145,4cyclictest2761614-21/usr/sbin/munin19:21:310
274685299141,8cyclictest2864583-21/usr/sbin/munin20:46:240
2746852991411,2cyclictest2874915-21kthreadcore20:51:310
2746852991411,2cyclictest2778634-21mailstats19:31:310
274685299140,1cyclictest0-21swapper/019:16:250
2649091140,3phc2sys0-21swapper/322:14:193
2649091140,2phc2sys0-21swapper/320:26:363
2746854991311,1cyclictest0-21swapper/222:51:292
2746854991311,1cyclictest0-21swapper/221:31:292
2746854991311,1cyclictest0-21swapper/221:31:292
2746854991311,1cyclictest0-21swapper/220:15:002
2746854991310,2cyclictest0-21swapper/220:21:302
2746854991310,1cyclictest0-21swapper/219:41:212
2746854991310,1cyclictest0-21swapper/219:21:282
274685399139,3cyclictest3141741-21kthreadcore23:31:281
274685399139,3cyclictest3070220-21tr22:51:231
274685399139,3cyclictest2878280-21kthreadcore20:56:281
274685399139,3cyclictest2847655-21irqrtprio20:31:281
274685399139,3cyclictest2398885-21kworker/u16:2+nfsiod21:31:241
274685399139,3cyclictest2398885-21kworker/u16:2+nfsiod21:31:241
274685399137,4cyclictest134050irq/121-eno123:02:111
274685399135,3cyclictest2747237-21aten_repower_en19:11:181
2746853991310,2cyclictest2871657-21irqcore20:51:291
2746853991310,2cyclictest2840612-21aten2.4-expect20:26:231
274685399130,3cyclictest0-21swapper/119:48:391
274685299137,5cyclictest0-21swapper/020:16:210
2746852991310,2cyclictest2816271-21aten_repower_cu20:06:200
2746852991310,2cyclictest2793719-21kthreadcore19:46:290
274685299130,8cyclictest2799044-21irqcore19:51:250
2649091130,4phc2sys0-21swapper/322:24:163
2649091130,2phc2sys0-21swapper/323:01:223
2649091130,2phc2sys0-21swapper/321:55:403
2649091130,2phc2sys0-21swapper/321:10:163
2649091130,1phc2sys0-21swapper/323:25:233
2746854991210,1cyclictest0-21swapper/219:51:232
2746854991210,1cyclictest0-21swapper/219:40:002
274685399125,5cyclictest2828701-21cpuspeed_turbos20:16:231
2649091123,2phc2sys0-21swapper/323:43:103
2649091120,2phc2sys0-21swapper/323:05:473
2649091120,2phc2sys0-21swapper/321:33:203
2649091120,2phc2sys0-21swapper/321:33:203
274685399114,5cyclictest1290-21dbus-daemon19:10:011
274685299117,2cyclictest241rcuc/019:10:020
2649091115,2phc2sys0-21swapper/323:40:003
2649091112,3phc2sys0-21swapper/321:10:013
2649091111,2phc2sys0-21swapper/322:17:253
2649091111,2phc2sys0-21swapper/321:51:203
2649091111,2phc2sys0-21swapper/321:48:433
2649091111,2phc2sys0-21swapper/320:55:013
2649091111,2phc2sys0-21swapper/319:55:023
2649091110,2phc2sys0-21swapper/323:35:003
2649091110,2phc2sys0-21swapper/320:10:533
2649091110,2phc2sys0-21swapper/319:41:203
2649091110,2phc2sys0-21swapper/319:21:273
2649091110,1phc2sys0-21swapper/320:48:523
2649091110,1phc2sys0-21swapper/319:15:063
274685499107,2cyclictest0-21swapper/219:10:012
2649091103,3phc2sys0-21swapper/321:01:213
2649091102,2phc2sys0-21swapper/319:36:233
2649091102,2phc2sys0-21swapper/319:30:023
2649091102,2phc2sys0-21swapper/300:21:333
2649091101,4phc2sys0-21swapper/320:01:223
2649091101,2phc2sys0-21swapper/323:54:553
2649091101,2phc2sys0-21swapper/322:41:063
2649091101,2phc2sys0-21swapper/322:01:263
2649091101,2phc2sys0-21swapper/320:31:293
2649091101,2phc2sys0-21swapper/300:10:033
2649091100,3phc2sys0-21swapper/320:17:543
2649091100,2phc2sys0-21swapper/322:45:513
2649091100,2phc2sys0-21swapper/322:28:163
2649091100,2phc2sys0-21swapper/321:23:303
2649091100,2phc2sys0-21swapper/320:36:303
2649091100,2phc2sys0-21swapper/320:06:203
2649091100,2phc2sys0-21swapper/319:31:223
2649091100,2phc2sys0-21swapper/319:11:173
2649091100,2phc2sys0-21swapper/300:26:023
264909191,2phc2sys0-21swapper/319:56:273
264909191,2phc2sys0-21swapper/319:46:293
264909190,2phc2sys0-21swapper/322:55:093
264909190,2phc2sys0-21swapper/322:30:403
264909190,2phc2sys0-21swapper/321:25:593
264909190,2phc2sys0-21swapper/320:56:213
264909190,2phc2sys0-21swapper/320:41:233
264909190,2phc2sys0-21swapper/320:21:273
264909190,2phc2sys0-21swapper/300:30:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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