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2026-03-26 - 05:09
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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 all highest latencies:
System rackeslot2.osadl.org (updated Thu Mar 26, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
287220221040,2sleep30-21swapper/323:06:243
29140632960,2sleep30-21swapper/323:31:213
27564742730,1sleep10-21swapper/121:57:491
26737172310,2sleep20-21swapper/221:11:212
27135262230,2sleep30-21swapper/321:33:183
2524045992311,7cyclictest0-21swapper/023:00:000
2649091221,10phc2sys0-21swapper/322:06:173
2524047992219,1cyclictest0-21swapper/219:50:022
2524047992219,1cyclictest0-21swapper/200:20:012
2524046992213,4cyclictest0-21swapper/121:51:301
2524045992211,6cyclictest0-21swapper/022:45:010
2524047992118,1cyclictest0-21swapper/200:00:002
2524046992114,3cyclictest2674214-21irqrtprio21:11:231
2524045992118,2cyclictest2680334-21perf21:15:000
2524045992118,2cyclictest1326-21systemd-logind21:40:000
2524045992113,4cyclictest2849236-21kthreadcore22:51:250
252404599211,14cyclictest2801691-21apt-get22:26:160
2649091201,3phc2sys0-21swapper/322:37:083
2524047992017,1cyclictest0-21swapper/223:15:002
2524046992011,4cyclictest0-21swapper/122:55:021
2524045992017,2cyclictest2748988-21munin-run21:55:000
2524045992017,2cyclictest1290-21dbus-daemon21:10:010
2649091190,2phc2sys0-21swapper/321:39:533
2524047991917,1cyclictest0-21swapper/222:30:012
2524047991916,1cyclictest0-21swapper/221:20:002
2524046991916,2cyclictest70-21kcompactd021:46:211
2524046991916,2cyclictest2731779-21munin-run21:45:001
2524046991913,5cyclictest2785185-21sort22:16:211
2524046991913,2cyclictest134050irq/121-eno123:50:001
2524046991912,3cyclictest1-21systemd00:40:011
252404599198,6cyclictest0-21swapper/023:45:010
2524045991913,5cyclictest0-21swapper/000:15:000
26107862180,2sleep30-21swapper/320:16:313
252404799182,9cyclictest0-21swapper/221:21:172
2524047991816,1cyclictest0-21swapper/220:40:022
2524047991815,1cyclictest0-21swapper/222:20:012
2524047991815,1cyclictest0-21swapper/221:10:012
252404799181,3cyclictest0-21swapper/223:30:012
252404799181,12cyclictest0-21swapper/222:00:012
252404799181,11cyclictest0-21swapper/200:40:012
2524046991815,2cyclictest2929480-21systemd-run23:40:011
2524046991815,2cyclictest2880797-21kthreadcore23:11:231
2524046991815,2cyclictest2671910-21apt-config21:10:001
2524046991815,2cyclictest1326-21systemd-logind20:10:011
2524046991815,2cyclictest1288-1atopacctd22:35:001
2524046991811,3cyclictest2681307-21/usr/sbin/munin21:16:301
252404599189,5cyclictest0-21swapper/023:01:280
252404599188,5cyclictest0-21swapper/022:06:250
2524045991816,1cyclictest2963891-21/usr/sbin/munin00:00:020
2524045991815,2cyclictest1290-21dbus-daemon21:35:010
2902298170,2rtkit-daemon0-21swapper/123:51:131
2649091170,2phc2sys0-21swapper/322:40:213
2649091170,2phc2sys0-21swapper/321:09:543
2649091170,2phc2sys0-21swapper/300:32:063
2649091170,2phc2sys0-21swapper/300:20:063
2524047991714,1cyclictest0-21swapper/223:00:002
2524047991714,1cyclictest0-21swapper/222:46:202
2524047991714,1cyclictest0-21swapper/222:05:022
2524047991714,1cyclictest0-21swapper/220:25:002
252404699178,6cyclictest1426-21gdbus22:10:011
2524046991714,2cyclictest2860953-21systemd23:00:001
2524046991714,2cyclictest2705995-21systemd-run21:30:011
2524046991714,2cyclictest257-21systemd-journal19:17:451
2524046991714,2cyclictest2530784-21cpuspeed_turbos19:15:021
2524046991714,2cyclictest2524043-21cyclictest23:35:011
252404599179,7cyclictest1327-21in:imuxsock00:04:550
252404599179,4cyclictest1327-21in:imuxsock23:30:010
252404599178,5cyclictest0-21swapper/022:46:250
252404599178,2cyclictest0-21swapper/022:21:240
252404599177,5cyclictest0-21swapper/021:21:220
252404599177,4cyclictest2671856-21diskmemload23:35:560
252404599177,4cyclictest0-21swapper/021:26:260
252404599171,5cyclictest2903786-21turbostat23:25:000
2524045991714,2cyclictest3015463-21sh00:30:010
2524045991714,2cyclictest3015463-21sh00:30:010
2524045991714,2cyclictest2946736-21systemctl23:50:010
2524045991714,2cyclictest2920968-21latency_hist23:35:010
2524045991714,2cyclictest2647688-21latency_hist20:50:010
2524045991714,2cyclictest2625205-21sed20:31:250
2524045991714,2cyclictest2587226-21wc20:00:010
2524045991714,2cyclictest2561876-21grep19:36:280
2524045991714,2cyclictest2538383-21munin-plugin-st19:20:000
2524045991714,2cyclictest1296-21polkitd23:55:010
2524045991714,2cyclictest1290-21dbus-daemon22:35:000
2524045991714,2cyclictest0-21swapper/000:20:010
27303902160,2sleep20-21swapper/221:42:392
2649091160,2phc2sys0-21swapper/323:43:283
2649091160,2phc2sys0-21swapper/322:26:403
2649091160,2phc2sys0-21swapper/322:02:123
2649091160,1phc2sys0-21swapper/323:20:083
25885322160,2sleep20-21swapper/220:01:242
252404799161,9cyclictest0-21swapper/200:30:012
252404799161,9cyclictest0-21swapper/200:30:012
2524047991614,1cyclictest0-21swapper/222:35:002
2524047991614,1cyclictest0-21swapper/221:40:012
2524047991613,1cyclictest0-21swapper/223:36:262
2524047991613,1cyclictest0-21swapper/222:15:012
2524047991613,1cyclictest0-21swapper/219:35:012
2524046991613,2cyclictest3006483-21perf00:25:001
2524046991613,2cyclictest2778603-21kthreadcore22:11:251
2524046991613,2cyclictest1290-21dbus-daemon22:25:001
2524046991610,5cyclictest2588252-21fschecks_time20:01:211
2524046991610,2cyclictest134050irq/121-eno123:21:231
252404599168,4cyclictest0-21swapper/022:00:020
252404599168,4cyclictest0-21swapper/021:50:000
252404599164,7cyclictest2731250-1ssh21:44:140
252404599162,2cyclictest491rcuog/223:05:130
2524045991613,2cyclictest2636242-21cpuspeed_turbos20:41:180
2524045991613,2cyclictest2614558-21kthreadcore20:21:250
2524045991611,2cyclictest2883260-21kthreadcore23:11:250
2524045991610,5cyclictest0-21swapper/022:40:020
2524045991610,3cyclictest2998039-21kworker/u16:0-rpciod00:20:410
29751522150,5sleep30-21swapper/300:06:253
2649091150,6phc2sys0-21swapper/321:19:033
2649091150,2phc2sys0-21swapper/321:24:003
25817842150,2sleep30-21swapper/319:56:203
2524047991513,1cyclictest0-21swapper/221:55:012
2524047991512,1cyclictest0-21swapper/223:40:052
2524047991512,1cyclictest0-21swapper/222:55:012
2524047991512,1cyclictest0-21swapper/220:00:022
2524047991512,1cyclictest0-21swapper/219:40:002
2524047991512,1cyclictest0-21swapper/219:26:242
2524047991512,1cyclictest0-21swapper/200:06:222
2524047991511,2cyclictest0-21swapper/200:14:382
252404699159,2cyclictest134050irq/121-eno100:12:141
252404699157,3cyclictest2957198-21irqcore23:56:231
2524046991512,2cyclictest3015392-21latency_hist00:30:001
2524046991512,2cyclictest3015392-21latency_hist00:30:001
2524046991512,2cyclictest2912572-21latency_hist23:30:011
2524046991512,2cyclictest2843819-21perf22:50:001
2524046991512,2cyclictest2617050-21grep20:21:311
2524046991512,2cyclictest2581347-21sh19:55:011
2524046991512,2cyclictest2574219-21mailstats19:46:281
2524046991512,2cyclictest0-21swapper/100:05:001
2524046991511,3cyclictest2992691-21kthreadcore00:16:251
2524046991511,3cyclictest2963732-21kworker/u16:3+nfsiod00:07:551
2524046991511,3cyclictest2938017-21kworker/u16:1+nfsiod00:34:421
2524046991511,3cyclictest2891999-21kthreadcore23:16:251
2524046991511,3cyclictest2804749-21kthreadcore22:26:241
2524046991511,3cyclictest2763250-21kthreadcore22:01:261
252404599158,5cyclictest257-21systemd-journal22:17:000
252404599156,5cyclictest3022520-21sshd00:32:470
252404599156,5cyclictest2976104-21kthreadcore00:06:250
252404599156,3cyclictest2599075-21sshd20:07:270
2524045991512,2cyclictest3032431-21cron00:40:000
2524045991512,2cyclictest2890657-21kthreadcore23:16:240
2524045991512,2cyclictest2766398-21latency_hist22:05:000
2524045991512,2cyclictest0-21swapper/019:55:010
2524045991512,2cyclictest0-21swapper/019:15:010
252404599150,14cyclictest2688862-21basename21:20:000
2649091141,5phc2sys0-21swapper/322:21:163
2649091140,2phc2sys0-21swapper/323:55:073
2649091140,2phc2sys0-21swapper/323:50:403
2649091140,1phc2sys0-21swapper/319:39:343
2524047991412,1cyclictest0-21swapper/222:45:012
2524047991412,1cyclictest0-21swapper/222:21:192
2524047991412,1cyclictest0-21swapper/220:11:232
2524047991412,1cyclictest0-21swapper/220:11:232
2524047991412,1cyclictest0-21swapper/219:15:012
2524047991411,2cyclictest0-21swapper/219:51:302
2524047991411,1cyclictest0-21swapper/223:50:502
2524047991411,1cyclictest0-21swapper/223:31:172
2524047991411,1cyclictest0-21swapper/223:20:592
2524047991411,1cyclictest0-21swapper/223:16:232
2524047991411,1cyclictest0-21swapper/223:01:262
2524047991411,1cyclictest0-21swapper/221:31:212
2524047991411,1cyclictest0-21swapper/220:51:242
2524047991411,1cyclictest0-21swapper/220:46:182
2524047991411,1cyclictest0-21swapper/220:06:212
2524047991411,1cyclictest0-21swapper/219:45:002
2524047991411,1cyclictest0-21swapper/200:31:222
2524047991411,1cyclictest0-21swapper/200:25:002
2524047991411,1cyclictest0-21swapper/200:01:202
2524047991410,2cyclictest0-21swapper/223:46:582
2524047991410,2cyclictest0-21swapper/220:26:252
252404699147,5cyclictest257-21systemd-journal20:15:001
252404699147,5cyclictest257-21systemd-journal20:15:001
2524046991411,2cyclictest2930761-21cpuspeed_turbos23:41:191
2524046991411,2cyclictest2862580-21fschecks_count23:01:211
2524046991411,2cyclictest2714667-21systemd-run21:35:011
2524046991411,2cyclictest2632102-21kthreadcore20:36:241
2524046991411,2cyclictest2565230-21kthreadcore19:41:241
2524046991411,2cyclictest2559428-21kthreadcore19:36:251
2524046991411,2cyclictest2556989-21sh19:35:021
2524046991411,2cyclictest2538964-21cpu19:21:201
2524046991411,2cyclictest2524043-21cyclictest20:51:251
2524046991410,3cyclictest2872843-21kthreadcore23:06:251
2524046991410,3cyclictest2766492-21kworker/u16:2+nfsiod22:35:261
2524046991410,3cyclictest2662501-21kthreadcore21:01:241
2524046991410,3cyclictest2655950-21kthreadcore20:56:251
2524046991410,3cyclictest2655950-21kthreadcore20:56:251
2524046991410,3cyclictest2583411-21kthreadcore19:56:251
2524046991410,3cyclictest257-21systemd-journal20:20:001
2524046991410,3cyclictest2364921-21kworker/u16:2+nfsiod21:39:221
2524045991412,1cyclictest2563799-21cut19:41:200
2524045991411,2cyclictest2777119-21grep22:11:230
2524045991411,2cyclictest2662750-21kthreadcore21:01:240
2524045991411,2cyclictest2631207-21kthreadcore20:36:250
2524045991411,2cyclictest2544800-21/usr/sbin/munin19:26:310
2524045991411,2cyclictest1-21systemd20:15:280
252404599140,12cyclictest0-21swapper/020:02:360
2649091135,3phc2sys0-21swapper/323:15:003
2649091131,3phc2sys0-21swapper/323:47:093
2649091130,3phc2sys0-21swapper/320:11:243
2649091130,3phc2sys0-21swapper/320:11:243
2649091130,2phc2sys0-21swapper/323:39:133
2649091130,2phc2sys0-21swapper/322:45:223
2649091130,2phc2sys0-21swapper/322:33:473
2649091130,2phc2sys0-21swapper/300:38:123
2649091130,2phc2sys0-21swapper/300:15:193
2524047991311,1cyclictest0-21swapper/220:20:002
2524047991310,1cyclictest0-21swapper/223:06:202
2524047991310,1cyclictest0-21swapper/221:50:012
2524047991310,1cyclictest0-21swapper/221:26:192
2524047991310,1cyclictest0-21swapper/221:01:242
252404699139,3cyclictest2619147-21kthreadcore20:26:251
252404699136,5cyclictest2628045-21tr20:31:261
252404699131,6cyclictest2689866-21apt-get21:21:171
2524046991310,2cyclictest2828709-21grep22:41:281
2524046991310,2cyclictest2644521-21kthreadcore20:46:231
2524046991310,2cyclictest2545355-21sh19:26:191
252404599139,3cyclictest2553212-21kthreadcore19:31:250
252404599134,5cyclictest0-21swapper/020:10:590
252404599134,5cyclictest0-21swapper/020:10:590
2524045991311,1cyclictest2538770-21/usr/sbin/munin19:21:240
2524045991310,2cyclictest2656008-21kthreadcore20:56:250
2524045991310,2cyclictest2656008-21kthreadcore20:56:250
2524045991310,2cyclictest2648592-21sh20:51:200
2524045991310,2cyclictest2622435-21latency20:26:260
2524045991310,2cyclictest2575084-21systemd-run19:50:010
2649091121,3phc2sys0-21swapper/319:11:213
2649091120,2phc2sys0-21swapper/321:42:143
2649091120,1phc2sys0-21swapper/322:58:213
2649091120,1phc2sys0-21swapper/319:21:073
26488742120,4sleep30-21swapper/320:51:233
252404799129,1cyclictest0-21swapper/220:56:202
252404799129,1cyclictest0-21swapper/220:56:202
252404799129,1cyclictest0-21swapper/219:25:012
2524047991210,1cyclictest0-21swapper/222:40:012
2524047991210,1cyclictest0-21swapper/222:06:232
2524047991210,1cyclictest0-21swapper/220:31:262
29892132110,5sleep30-21swapper/300:14:503
2649091112,2phc2sys0-21swapper/323:25:093
2649091111,4phc2sys0-21swapper/321:56:193
2649091111,2phc2sys0-21swapper/323:02:173
2649091111,2phc2sys0-21swapper/322:15:283
2649091111,2phc2sys0-21swapper/320:06:233
2649091111,2phc2sys0-21swapper/319:34:373
2649091111,2phc2sys0-21swapper/300:25:383
2649091111,2phc2sys0-21swapper/300:25:383
2649091111,2phc2sys0-21swapper/300:01:163
2649091111,1phc2sys0-21swapper/319:55:013
2649091110,2phc2sys0-21swapper/321:52:163
2649091110,2phc2sys0-21swapper/320:01:183
2649091110,1phc2sys0-21swapper/320:35:163
2649091110,1phc2sys0-21swapper/320:31:033
252404799119,1cyclictest0-21swapper/220:41:282
252404799119,1cyclictest0-21swapper/219:15:032
252404799118,1cyclictest0-21swapper/219:10:012
252404699118,2cyclictest2524043-21cyclictest20:41:211
252404599111,5cyclictest2524082-21cat19:10:010
2649091102,3phc2sys0-21swapper/323:17:033
2649091101,4phc2sys0-21swapper/322:11:183
2649091101,2phc2sys0-21swapper/321:10:073
2649091101,2phc2sys0-21swapper/320:26:153
2649091101,2phc2sys0-21swapper/319:41:273
2649091100,2phc2sys0-21swapper/321:26:183
2649091100,2phc2sys0-21swapper/321:00:013
2649091100,2phc2sys0-21swapper/321:00:013
2649091100,2phc2sys0-21swapper/319:46:193
2649091100,2phc2sys0-21swapper/319:16:183
2649091100,1phc2sys0-21swapper/320:44:023
264909190,2phc2sys0-21swapper/322:50:313
264909190,2phc2sys0-21swapper/321:45:183
264909190,2phc2sys0-21swapper/321:00:373
264909190,2phc2sys0-21swapper/320:21:183
264909190,2phc2sys0-21swapper/319:26:203
25240469990,5cyclictest1-21systemd19:10:011
264909180,2phc2sys0-21swapper/320:45:023
264909180,2phc2sys0-21swapper/319:05:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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