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2026-03-20 - 04:20
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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 Fri Mar 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324831221170,1sleep0241rcuc/020:21:330
350578121060,2sleep03505778-21awk23:05:000
343825321050,0sleep03438257-21sed22:26:330
35207402480,1sleep30-21swapper/323:11:373
36193732300,2sleep30-21swapper/300:10:003
2649091271,7phc2sys0-21swapper/320:40:013
3157493992321,1cyclictest0-21swapper/222:08:332
3157483992315,7cyclictest3531828-21cron23:20:000
3157486992215,3cyclictest3325670-21kthreadcore21:21:341
3157483992219,2cyclictest3238544-21apt-key20:15:010
3157486992118,2cyclictest3163630-21sh19:15:001
3157486992114,3cyclictest3428208-21sshd22:20:591
3157486992112,2cyclictest191rcu_preempt22:20:001
3157493992017,1cyclictest0-21swapper/221:15:382
315748399209,6cyclictest0-21swapper/023:51:280
2649091200,2phc2sys0-21swapper/321:43:413
3157493991916,1cyclictest0-21swapper/222:05:002
3157493991916,1cyclictest0-21swapper/221:50:392
3157493991916,1cyclictest0-21swapper/219:56:272
3157493991916,1cyclictest0-21swapper/200:29:112
3157486991916,2cyclictest3497064-21sendmail23:00:001
3157486991916,2cyclictest3262829-21latency_hist20:35:001
3157486991915,3cyclictest0-21swapper/122:40:001
3157483991916,2cyclictest3392287-21sh22:00:000
3157483991916,2cyclictest3190071-21latency_hist19:35:000
3157483991916,2cyclictest3163845-21aten_repower_fr19:15:010
3157483991912,6cyclictest3401140-21munin-plugin-st22:05:010
3157483991911,7cyclictest0-21swapper/020:40:000
3157483991911,4cyclictest3647024-21aten2.4-expect00:26:270
3157483991911,4cyclictest3336060-21kthreadcore21:26:350
3157483991910,5cyclictest3628449-21latency_hist00:15:010
3157483991910,5cyclictest3550338-21/usr/sbin/munin23:31:310
2649091191,2phc2sys0-21swapper/322:34:033
2649091190,2phc2sys0-21swapper/323:24:413
3157493991815,1cyclictest0-21swapper/221:45:062
3157493991815,1cyclictest0-21swapper/221:41:332
3157493991815,1cyclictest0-21swapper/221:36:342
3157493991815,1cyclictest0-21swapper/220:36:272
3157493991814,2cyclictest0-21swapper/219:25:002
3157486991815,2cyclictest3602037-21latency_hist00:00:011
3157486991815,2cyclictest3305227-21idleruntime-cro21:10:001
3157486991815,2cyclictest3190084-21perf19:35:001
3157486991815,2cyclictest257-21systemd-journal00:10:011
315748699181,4cyclictest3306480-21ssh21:11:261
315748399188,6cyclictest3570861-21kthreadcore23:41:320
3157483991815,2cyclictest3549350-21unin-run23:30:010
3157483991815,2cyclictest3538131-21mailstats23:21:360
3157483991815,2cyclictest3494408-21needreboot22:56:360
3157483991815,2cyclictest3157646-21sh19:10:010
3157483991815,2cyclictest1326-21systemd-logind00:20:010
3157483991815,2cyclictest1288-1atopacctd00:36:370
3157483991814,3cyclictest3322811-21kworker/u16:1+nfsiod21:42:260
3157483991810,7cyclictest3466053-21kthreadcore22:41:330
3157483991810,4cyclictest3447196-21kthreadcore22:31:320
3157483991810,4cyclictest3324742-21hddtemp_smartct21:21:310
2649091180,3phc2sys0-21swapper/322:02:203
2649091180,2phc2sys0-21swapper/321:47:423
2649091180,2phc2sys0-21swapper/300:04:323
315749399172,9cyclictest0-21swapper/200:40:002
3157493991715,1cyclictest0-21swapper/222:20:022
3157493991715,1cyclictest0-21swapper/220:15:022
3157493991715,1cyclictest0-21swapper/219:45:162
3157493991714,1cyclictest0-21swapper/223:21:262
3157493991714,1cyclictest0-21swapper/222:40:002
3157493991714,1cyclictest0-21swapper/220:45:002
3157493991714,1cyclictest0-21swapper/219:13:282
3157493991713,2cyclictest0-21swapper/200:06:272
3157493991711,4cyclictest0-21swapper/220:10:012
315748699179,3cyclictest3157478-21cyclictest23:39:061
315748699178,3cyclictest0-21swapper/123:20:011
3157486991714,2cyclictest3557938-21ls23:35:001
3157486991714,2cyclictest3418615-21systemd-run22:15:021
3157486991714,2cyclictest3337390-21latency21:26:361
3157486991714,2cyclictest3246217-21ps20:21:311
3157486991714,2cyclictest3157545-21apt-key19:10:011
3157486991714,2cyclictest1426-21gdbus19:30:021
3157486991714,2cyclictest0-21swapper/123:45:011
3157486991713,3cyclictest3288754-21kthreadcore20:56:331
3157486991713,3cyclictest1996-21runrttasks20:46:291
3157486991710,3cyclictest3305199-21diskmemload00:36:271
315748699170,3cyclictest0-21swapper/123:05:361
315748399179,1cyclictest0-21swapper/021:35:010
3157483991714,2cyclictest3418492-21munin-plugin-st22:15:010
3157483991714,2cyclictest3167091-21if_enp1s019:16:300
3157483991714,2cyclictest171ktimers/019:41:590
3157483991711,5cyclictest3157478-21cyclictest23:06:380
3157483991711,5cyclictest3157478-21cyclictest22:15:130
3157483991711,5cyclictest3103245-21kworker/u16:3-rpciod21:10:400
315748399170,10cyclictest0-21swapper/022:45:480
2649091170,2phc2sys0-21swapper/322:50:543
2649091170,2phc2sys0-21swapper/322:21:533
2649091170,2phc2sys0-21swapper/321:58:033
2649091170,2phc2sys0-21swapper/300:29:343
315749399164,10cyclictest0-21swapper/221:10:362
315749399161,6cyclictest0-21swapper/200:20:002
3157493991613,1cyclictest0-21swapper/223:56:292
3157493991613,1cyclictest0-21swapper/223:51:362
3157493991613,1cyclictest0-21swapper/223:47:592
3157493991613,1cyclictest0-21swapper/222:41:312
3157493991613,1cyclictest0-21swapper/222:25:362
3157493991613,1cyclictest0-21swapper/221:55:462
3157493991613,1cyclictest0-21swapper/221:30:452
3157493991613,1cyclictest0-21swapper/221:26:392
3157493991613,1cyclictest0-21swapper/220:56:352
3157493991613,1cyclictest0-21swapper/220:46:342
3157493991613,1cyclictest0-21swapper/220:17:012
3157493991613,1cyclictest0-21swapper/200:31:322
3157493991613,1cyclictest0-21swapper/200:11:322
3157493991612,2cyclictest0-21swapper/223:06:562
315748699169,3cyclictest3649454-21kthreadcore00:26:341
315748699161,9cyclictest1-21systemd20:45:011
3157486991613,2cyclictest3543034-21kthreadcore23:26:321
3157486991613,2cyclictest3437986-21gltestperf22:26:311
3157486991613,2cyclictest3372357-21proc_pri21:46:361
3157486991612,3cyclictest3610923-21kworker/u16:0+nfsiod00:33:101
3157486991612,3cyclictest3558083-21kworker/u16:3+nfsiod23:50:581
3157486991612,3cyclictest3462197-21kworker/u16:0+nfsiod23:20:081
3157486991612,3cyclictest3263990-21gltestperf20:36:291
315748399169,6cyclictest3482256-21kthreadcore22:51:320
315748399169,2cyclictest1290-21dbus-daemon20:45:010
3157483991613,2cyclictest3598726-21kthreadcore23:56:350
3157483991613,2cyclictest3409758-21systemd-run22:10:000
3157483991613,2cyclictest3256746-21cron20:30:000
3157483991613,2cyclictest3244950-21grep20:20:010
3157483991613,2cyclictest3232433-21latency_hist20:10:010
315748399160,5cyclictest3563180-21grep23:36:330
2649091160,5phc2sys0-21swapper/300:31:263
2649091160,2phc2sys0-21swapper/323:56:503
315749399154,4cyclictest0-21swapper/220:30:012
315749399152,6cyclictest0-21swapper/219:40:012
315749399152,6cyclictest0-21swapper/219:40:012
3157493991513,1cyclictest0-21swapper/223:43:302
3157493991513,1cyclictest0-21swapper/223:35:512
3157493991513,1cyclictest0-21swapper/223:04:422
3157493991513,1cyclictest0-21swapper/222:55:042
3157493991513,1cyclictest0-21swapper/222:45:352
3157493991513,1cyclictest0-21swapper/222:20:332
3157493991513,1cyclictest0-21swapper/220:05:012
3157493991512,1cyclictest0-21swapper/223:15:582
3157493991512,1cyclictest0-21swapper/222:31:402
3157493991512,1cyclictest0-21swapper/221:22:472
3157493991512,1cyclictest0-21swapper/219:50:152
3157493991512,1cyclictest0-21swapper/219:45:002
3157493991512,1cyclictest0-21swapper/219:31:322
3157493991512,1cyclictest0-21swapper/219:16:372
3157493991512,1cyclictest0-21swapper/200:20:352
3157493991512,1cyclictest0-21swapper/200:00:362
3157493991511,2cyclictest0-21swapper/223:26:252
315748699157,4cyclictest3305199-21diskmemload22:50:421
315748699157,3cyclictest0-21swapper/121:55:011
3157486991512,2cyclictest3251469-21cpuspeed_turbos20:26:291
3157486991512,2cyclictest257-21systemd-journal19:55:011
3157486991512,2cyclictest1313-21gmain19:40:001
3157486991512,2cyclictest1313-21gmain19:40:001
3157486991512,2cyclictest0-21swapper/123:50:011
3157486991512,2cyclictest0-21swapper/123:05:021
3157486991512,2cyclictest0-21swapper/122:45:011
3157486991511,3cyclictest3462197-21kworker/u16:0+nfsiod23:13:491
3157486991511,3cyclictest3427492-21kworker/u16:2+nfsiod00:02:151
3157486991511,3cyclictest3313799-21kworker/u16:0+nfsiod22:06:441
3157486991511,3cyclictest3103245-21kworker/u16:3+nfsiod22:02:411
3157486991511,3cyclictest3103245-21kworker/u16:3+nfsiod21:31:551
3157486991511,3cyclictest0-21swapper/100:16:391
315748699150,4cyclictest0-21swapper/119:20:331
315748399157,4cyclictest0-21swapper/000:05:010
315748399154,6cyclictest3518568-21kthreadcore23:11:330
3157483991512,2cyclictest3612771-21grep00:06:300
3157483991512,2cyclictest3305199-21diskmemload22:36:320
3157483991512,2cyclictest3262828-21latency_hist20:35:010
3157483991512,2cyclictest3213579-21mailstats19:51:360
3157483991512,2cyclictest3208453-21systemd-run19:50:020
3157483991511,2cyclictest0-21swapper/021:55:010
2902298150,3rtkit-daemon0-21swapper/020:57:130
2649091151,4phc2sys0-21swapper/323:26:253
2649091150,3phc2sys0-21swapper/323:49:493
2649091150,2phc2sys0-21swapper/323:52:323
2649091150,2phc2sys0-21swapper/322:59:163
2649091150,2phc2sys0-21swapper/320:11:273
3157493991412,1cyclictest0-21swapper/222:53:392
3157493991411,1cyclictest0-21swapper/223:10:162
3157493991411,1cyclictest0-21swapper/222:11:272
3157493991411,1cyclictest0-21swapper/221:05:412
3157493991411,1cyclictest0-21swapper/220:54:412
315748699148,5cyclictest134050irq/121-eno121:40:291
315748699145,5cyclictest1288-1atopacctd21:15:191
3157486991412,1cyclictest3157478-21cyclictest22:50:021
3157486991411,2cyclictest3640433-21kthreadcore00:21:321
3157486991411,2cyclictest3628504-21sh00:15:011
3157486991411,2cyclictest3233498-21head20:11:311
3157486991411,2cyclictest3157478-21cyclictest22:31:321
3157486991411,2cyclictest3157478-21cyclictest19:45:011
3157486991411,2cyclictest0-21swapper/122:00:001
3157486991410,3cyclictest3355438-21unixbench_singl21:36:391
3157486991410,3cyclictest3223481-21kthreadcore20:01:351
3157486991410,3cyclictest3203364-21gltestperf19:46:291
3157486991410,3cyclictest3167580-21kthreadcore19:16:331
315748399148,5cyclictest3558083-21kworker/u16:3-rpciod23:45:280
315748399146,4cyclictest0-21swapper/020:46:260
3157483991412,1cyclictest3157478-21cyclictest00:21:330
3157483991411,2cyclictest3371302-21kthreadcore21:46:340
3157483991411,2cyclictest3357611-21cut21:40:010
3157483991411,2cyclictest3226605-21sh20:05:020
3157483991411,2cyclictest3215971-21kthreadcore19:56:320
3157483991411,2cyclictest3196318-21systemd-run19:40:010
3157483991411,2cyclictest3196318-21systemd-run19:40:010
3157483991411,2cyclictest1288-1atopacctd21:03:000
315748399140,9cyclictest3315062-21ssh21:16:110
315748399140,4cyclictest3656863-21tr00:31:330
315748399140,2cyclictest3305217-21awk21:10:000
2649191140,1ptp4l0-21swapper/300:40:013
2649091140,2phc2sys0-21swapper/323:17:093
2649091140,2phc2sys0-21swapper/323:05:013
2649091140,2phc2sys0-21swapper/322:37:173
2649091140,1phc2sys0-21swapper/300:25:013
315749399138,2cyclictest0-21swapper/219:26:272
3157493991311,1cyclictest0-21swapper/223:30:272
3157493991311,1cyclictest0-21swapper/221:01:322
3157493991311,1cyclictest0-21swapper/220:30:092
3157493991310,2cyclictest0-21swapper/219:10:022
3157493991310,1cyclictest0-21swapper/220:21:292
3157486991310,2cyclictest3294831-21tr21:01:311
3157486991310,2cyclictest3226879-21aten_repower_po20:06:261
3157486991310,2cyclictest3219749-21timerandwakeup19:56:381
315748399138,4cyclictest3322811-21kworker/u16:1-rpciod22:20:550
315748399131,7cyclictest3177974-21latency_hist19:25:010
3157483991310,2cyclictest3284202-21kthreadcore20:51:340
3157483991310,2cyclictest3181162-21kthreadcore19:26:350
2649091131,6phc2sys0-21swapper/319:41:253
2649091130,4phc2sys0-21swapper/300:10:293
2649091130,2phc2sys0-21swapper/323:06:503
2649091130,2phc2sys0-21swapper/321:31:163
2649091130,2phc2sys0-21swapper/300:19:323
315748699129,2cyclictest3283001-21kthreadcore20:51:331
2649091122,2phc2sys0-21swapper/319:11:333
2649091120,3phc2sys0-21swapper/319:56:253
2649091120,1phc2sys0-21swapper/323:42:123
315748699112,2cyclictest2902298rtkit-daemon20:17:061
2649091111,4phc2sys0-21swapper/320:46:253
2649091111,2phc2sys0-21swapper/322:50:023
2649091110,2phc2sys0-21swapper/321:53:103
2649091110,2phc2sys0-21swapper/321:25:023
2649091110,2phc2sys0-21swapper/319:33:363
2649091110,1phc2sys0-21swapper/323:33:343
2649091110,1phc2sys0-21swapper/321:16:513
2649091110,1phc2sys0-21swapper/320:57:163
2649091110,1phc2sys0-21swapper/319:51:563
2649091101,4phc2sys0-21swapper/319:21:253
2649091101,2phc2sys0-21swapper/323:37:593
2649091101,2phc2sys0-21swapper/322:17:403
2649091101,2phc2sys0-21swapper/320:51:393
2649091100,3phc2sys0-21swapper/321:10:463
2649091100,2phc2sys0-21swapper/322:41:323
2649091100,2phc2sys0-21swapper/322:26:303
2649091100,2phc2sys0-21swapper/322:13:073
2649091100,2phc2sys0-21swapper/322:06:263
2649091100,2phc2sys0-21swapper/321:00:553
2649091100,2phc2sys0-21swapper/320:21:253
2649091100,2phc2sys0-21swapper/320:16:283
2649091100,2phc2sys0-21swapper/320:06:273
2649091100,1phc2sys0-21swapper/321:25:493
2649091100,1phc2sys0-21swapper/319:46:593
264909192,3phc2sys0-21swapper/321:06:363
264909191,2phc2sys0-21swapper/319:06:363
264909190,2phc2sys0-21swapper/321:35:243
264909190,2phc2sys0-21swapper/320:31:353
264909190,2phc2sys0-21swapper/320:01:303
264909190,2phc2sys0-21swapper/319:36:253
264909190,2phc2sys0-21swapper/319:36:253
264909190,2phc2sys0-21swapper/319:26:273
264909190,2phc2sys0-21swapper/319:16:263
264909190,1phc2sys0-21swapper/320:26:343
264909181,2phc2sys0-21swapper/320:40:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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