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2026-09-16 - 05:29
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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 Sep 16, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
400245721070,1sleep20-21swapper/200:19:282
38991692780,1sleep00-21swapper/023:24:100
39259662710,1sleep03925968-21grep23:39:210
35280192320,1sleep00-21swapper/019:29:320
349847499286,21cyclictest171ktimers/019:59:050
3498474992320,2cyclictest4008658-21sort00:24:250
3498474992316,6cyclictest24604-21gnome-shell20:59:090
349847499230,3cyclictest3542965-21apt-get19:44:050
3498475992215,6cyclictest24615-21JS14:54:061
349847499228,9cyclictest0-21swapper/021:59:070
3498474992216,5cyclictest3498472-21cyclictest00:39:060
3498474992214,6cyclictest3865861-21kthreadcore23:04:270
3498474992211,7cyclictest3646183-21kworker/u16:0-events_power_efficient21:22:070
349847499220,3cyclictest3763992-21apt-get22:05:060
349847499215,9cyclictest3678454-21sshd-session21:19:250
349847499215,9cyclictest0-21swapper/000:34:050
349847499208,8cyclictest4019695-21kthreadcore00:29:300
349847499207,6cyclictest24604-21gnome-shell21:10:590
3498474992014,5cyclictest3850061-21kthreadcore22:54:320
3498474992013,6cyclictest3698197-21kthreadcore21:29:280
3498474992013,5cyclictest3615085-21kthreadcore20:34:280
349847499200,8cyclictest3590052-21grep20:14:310
349847499200,19cyclictest0-21swapper/019:24:050
2447398200,4rtkit-daemon0-21swapper/023:08:220
2213291200,2phc2sys0-21swapper/323:59:063
349847599198,7cyclictest0-21swapper/122:15:011
349847599198,4cyclictest0-21swapper/122:59:031
3498475991912,3cyclictest3688987-21kthreadcore21:24:291
349847499196,8cyclictest0-21swapper/023:59:270
349847499195,3cyclictest82050irq/121-eno122:28:590
3498474991912,6cyclictest3911555-21kthreadcore23:29:280
3498474991912,6cyclictest3610674-21pmu-power20:29:320
3498474991912,6cyclictest24615-21JS14:54:060
3498474991912,5cyclictest813-21systemd-logind22:25:020
3498474991912,5cyclictest813-21systemd-logind22:25:020
3498474991912,4cyclictest601rcuop/320:20:300
3498474991912,4cyclictest191rcu_preempt20:40:050
3498474991911,7cyclictest3967591-21kworker/u16:1+nfsiod00:14:480
3498474991911,7cyclictest3897079-21kworker/u16:3+nfsiod23:40:030
3498474991911,7cyclictest3885664-21kthreadcore23:14:290
3498474991911,6cyclictest3581397-21kthreadcore20:09:300
3498474991910,5cyclictest3922664-21processes23:34:330
2213291190,2phc2sys0-21swapper/300:24:083
37390972180,2sleep20-21swapper/221:52:562
3498476991814,2cyclictest0-21swapper/220:59:092
349847599188,6cyclictest3682949-21kthreadcore21:19:301
349847599187,5cyclictest3991958-21cut00:14:271
3498475991815,2cyclictest3603954-21mailstats20:24:341
349847499189,8cyclictest0-21swapper/000:09:230
349847499188,9cyclictest0-21swapper/022:45:010
349847499188,9cyclictest0-21swapper/021:34:070
349847499181,6cyclictest3969814-21ssh00:04:040
349847499181,5cyclictest3737568-21munin-run21:50:020
3498474991812,5cyclictest3788736-21kthreadcore22:19:270
3498474991812,5cyclictest3561501-21kthreadcore19:54:300
3498474991812,5cyclictest3502943-21kthreadcore19:14:300
3498474991812,5cyclictest24615-21JS14:54:060
3498474991810,7cyclictest3498472-21cyclictest22:01:490
349847499180,2cyclictest0-21swapper/022:35:540
349847499180,17cyclictest3719089-21ssh21:39:330
2213291180,2phc2sys0-21swapper/323:25:343
2213291180,2phc2sys0-21swapper/322:54:123
2213291180,2phc2sys0-21swapper/322:44:303
2213291180,2phc2sys0-21swapper/322:13:033
2213291180,2phc2sys0-21swapper/321:20:243
2213291180,2phc2sys0-21swapper/300:38:113
349847699174,6cyclictest0-21swapper/223:54:282
3498476991713,1cyclictest0-21swapper/200:39:062
3498476991712,2cyclictest0-21swapper/200:28:472
349847599179,4cyclictest3843159-21sendmail_mailqu22:49:321
3498475991714,2cyclictest813-21systemd-logind19:55:031
3498475991714,2cyclictest644-21rpcbind23:29:031
3498475991713,3cyclictest778-21dbus-daemon23:55:011
3498475991711,2cyclictest82050irq/121-eno123:34:251
3498475991711,2cyclictest3666574-21diskmemload23:23:491
3498475991710,5cyclictest3595169-21tr20:19:301
3498475991710,3cyclictest3742814-21kthreadcore21:54:261
349847599170,1cyclictest0-21swapper/100:19:141
349847499173,9cyclictest3955141-21kthreadcore23:54:290
349847499173,9cyclictest3646183-21kworker/u16:0+xprtiod21:42:270
349847499172,10cyclictest3998726-21apt-get00:19:050
349847499171,5cyclictest491rcuog/223:49:340
3498474991712,4cyclictest376-21systemd-journal19:50:020
3498474991711,5cyclictest3857019-21kthreadcore22:59:250
3498474991711,5cyclictest3658504-21kthreadcore21:04:280
3498474991711,5cyclictest3643123-21kthreadcore20:54:280
3498474991711,5cyclictest3643123-21kthreadcore20:54:280
3498474991711,5cyclictest3622357-21kthreadcore20:39:280
3498474991711,5cyclictest3592252-21irqcore20:19:280
3498474991711,5cyclictest3530881-21kthreadcore19:34:250
3498474991710,6cyclictest3498472-21cyclictest21:54:560
349847499170,3cyclictest0-21swapper/022:10:060
2213291170,2phc2sys0-21swapper/323:51:153
2213291170,2phc2sys0-21swapper/300:33:533
2213291170,1phc2sys0-21swapper/323:42:583
349847699162,8cyclictest3704289-21taskset21:34:082
349847699162,8cyclictest0-21swapper/200:14:052
349847599167,4cyclictest0-21swapper/100:24:151
349847599165,6cyclictest491rcuog/221:49:051
349847599162,7cyclictest1221-21lldpd20:44:061
349847599161,6cyclictest0-21swapper/119:50:031
3498475991613,2cyclictest3766645-21ssh22:09:231
3498475991613,2cyclictest3764183-21tar22:05:021
3498475991613,2cyclictest3640314-21gltestperf20:54:241
3498475991613,2cyclictest3640314-21gltestperf20:54:241
3498475991613,2cyclictest24472-21rtkit-daemon19:10:201
3498475991612,3cyclictest3873311-21cut23:09:231
3498475991612,3cyclictest3536785-21gltestperf19:39:251
349847499162,10cyclictest3282081-21kworker/u16:2+xprtiod23:15:090
3498474991612,3cyclictest3812628-21kthreadcore22:34:250
3498474991612,3cyclictest3539845-21kthreadcore19:39:290
3498474991611,4cyclictest3576561-21timerwakeupswit20:04:340
3498474991610,5cyclictest778-21dbus-daemon21:10:020
3498474991610,5cyclictest778-21dbus-daemon21:10:020
349847499160,1cyclictest0-21swapper/019:15:040
2213291160,3phc2sys0-21swapper/322:59:263
2213291160,2phc2sys0-21swapper/322:32:263
2213291160,2phc2sys0-21swapper/320:09:213
2213291160,2phc2sys0-21swapper/319:39:293
349847699157,5cyclictest36940692sleep221:26:152
349847699156,6cyclictest38543542sleep222:58:072
349847699156,6cyclictest36769402sleep221:17:292
349847699156,6cyclictest36396702sleep220:54:162
349847699156,6cyclictest36396702sleep220:54:162
349847699156,6cyclictest35565642sleep219:52:002
349847699155,7cyclictest39429492sleep223:48:302
3498476991512,1cyclictest0-21swapper/222:10:062
3498476991512,1cyclictest0-21swapper/221:00:472
349847599159,5cyclictest24615-21JS14:54:061
349847599157,7cyclictest24619-21llvmpipe-119:33:591
349847599157,3cyclictest3666574-21diskmemload00:28:331
349847599156,5cyclictest3498472-21cyclictest00:02:121
349847599156,3cyclictest3498472-21cyclictest22:23:461
349847599156,3cyclictest3498472-21cyclictest22:23:461
349847599155,5cyclictest3893672-21cut23:19:271
349847599153,5cyclictest491rcuog/223:49:341
3498475991512,2cyclictest3665898-21needreboot21:09:301
3498475991512,2cyclictest3665898-21needreboot21:09:301
3498475991512,2cyclictest3625333-21systemd-run20:40:031
3498475991512,2cyclictest0-21swapper/119:44:281
3498475991511,3cyclictest3931801-21timerandwakeup23:39:451
3498475991511,3cyclictest3868462-21kthreadcore23:04:291
3498475991511,3cyclictest3719282-21timerwakeupswit21:39:341
3498475991511,3cyclictest3589212-21kthreadcore20:14:281
3498475991511,3cyclictest3512008-21kthreadcore19:19:281
3498475991511,3cyclictest24619-21llvmpipe-100:32:591
349847499153,10cyclictest778-21dbus-daemon19:10:020
2213291151,5phc2sys0-21swapper/319:19:063
2213291151,3phc2sys0-21swapper/322:04:053
2213291151,2phc2sys0-21swapper/323:01:073
2213291150,3phc2sys0-21swapper/322:19:043
2213291150,3phc2sys0-21swapper/320:54:053
2213291150,3phc2sys0-21swapper/320:54:053
2213291150,1phc2sys0-21swapper/320:49:193
349847699146,6cyclictest36689662sleep221:14:122
349847699145,6cyclictest37210492sleep221:42:142
349847699144,5cyclictest0-21swapper/222:35:062
3498476991411,1cyclictest0-21swapper/223:34:282
3498476991411,1cyclictest0-21swapper/223:04:272
3498476991411,1cyclictest0-21swapper/222:54:322
3498476991411,1cyclictest0-21swapper/220:18:292
3498476991411,1cyclictest0-21swapper/219:41:422
3498476991410,2cyclictest0-21swapper/222:05:062
3498476991410,2cyclictest0-21swapper/200:20:442
3498476991410,1cyclictest0-21swapper/219:15:042
349847599147,1cyclictest82050irq/121-eno122:37:411
349847599145,3cyclictest4036573-21grep00:39:281
3498475991412,1cyclictest3666574-21diskmemload21:28:591
3498475991411,2cyclictest3980167-21fschecks_time00:07:251
3498475991411,2cyclictest3812120-21kthreadcore22:34:251
3498475991411,2cyclictest3752486-21kthreadcore21:59:301
3498475991411,2cyclictest3647274-21idleruntime20:59:281
3498475991411,2cyclictest1188-21runrttasks22:50:221
3498475991411,2cyclictest0-21swapper/122:29:291
349847599141,12cyclictest0-21swapper/119:29:051
3498475991410,3cyclictest3938037-21kthreadcore23:44:281
3498475991410,3cyclictest3785051-21irqcore22:19:241
3498475991410,3cyclictest3659224-21sendmail_mailqu21:04:311
3498475991410,3cyclictest3564940-21kernelversion19:59:271
2213291141,2phc2sys0-21swapper/300:08:003
2213291140,2phc2sys0-21swapper/321:50:403
2213291140,2phc2sys0-21swapper/300:00:413
38797512130,2sleep30-21swapper/323:10:343
349847699138,2cyclictest0-21swapper/223:16:432
349847699135,6cyclictest35839882sleep220:10:032
349847699135,5cyclictest3960891-21chrt23:59:032
349847699135,5cyclictest34988372sleep219:11:442
349847699134,6cyclictest3809470-21chrt22:31:562
3498476991310,1cyclictest0-21swapper/221:59:322
3498476991310,1cyclictest0-21swapper/221:39:332
3498476991310,1cyclictest0-21swapper/221:24:522
3498476991310,1cyclictest0-21swapper/220:34:282
3498476991310,1cyclictest0-21swapper/219:24:302
349847699130,1cyclictest0-21swapper/219:34:042
349847599139,3cyclictest3646183-21kworker/u16:0+nfsiod21:43:411
349847599139,3cyclictest3617196-21kthreadcore20:34:291
349847599138,1cyclictest82050irq/121-eno122:44:241
349847599136,5cyclictest3669520-21df21:14:231
349847599135,3cyclictest3666574-21diskmemload21:33:261
349847599132,6cyclictest932-1atopacctd23:55:491
3498475991310,2cyclictest3666574-21diskmemload23:14:131
2213291134,2phc2sys0-21swapper/320:24:283
2213291130,4phc2sys0-21swapper/320:39:053
2213291130,2phc2sys0-21swapper/322:47:463
2213291130,2phc2sys0-21swapper/321:00:183
2213291130,2phc2sys0-21swapper/320:34:053
2213291130,2phc2sys0-21swapper/320:28:043
2213291130,2phc2sys0-21swapper/320:11:163
2213291130,2phc2sys0-21swapper/300:26:413
2213291130,1phc2sys0-21swapper/319:14:383
349847699129,1cyclictest0-21swapper/223:29:282
349847699129,1cyclictest0-21swapper/223:24:062
349847699129,1cyclictest0-21swapper/222:45:092
349847699129,1cyclictest0-21swapper/222:04:282
349847699129,1cyclictest0-21swapper/220:40:052
349847699129,1cyclictest0-21swapper/220:29:322
349847699129,1cyclictest0-21swapper/220:09:302
349847699129,1cyclictest0-21swapper/200:32:302
349847699126,3cyclictest3980373-21chrt00:07:412
349847699126,3cyclictest3521987-21chrt19:25:582
349847699124,6cyclictest36326422sleep220:49:032
349847699124,5cyclictest0-21swapper/222:24:282
349847699124,5cyclictest0-21swapper/222:24:282
349847699124,1cyclictest0-21swapper/222:18:382
349847699124,1cyclictest0-21swapper/221:47:322
3498476991210,1cyclictest0-21swapper/200:01:032
349847599129,2cyclictest3521742-21latency_hist19:25:021
349847599129,2cyclictest0-21swapper/120:04:291
349847599122,4cyclictest3632519-21sshd-auth20:47:251
349847599121,6cyclictest1-21systemd19:10:011
2213291122,2phc2sys0-21swapper/321:33:243
2213291121,2phc2sys0-21swapper/322:26:463
2213291120,2phc2sys0-21swapper/321:15:393
2213291120,2phc2sys0-21swapper/321:05:103
2213291120,2phc2sys0-21swapper/321:05:103
2213291120,2phc2sys0-21swapper/320:19:073
2213291120,1phc2sys0-21swapper/322:24:373
2213291120,1phc2sys0-21swapper/322:24:373
2213291120,1phc2sys0-21swapper/319:59:393
349847699119,1cyclictest0-21swapper/222:27:542
349847699119,1cyclictest0-21swapper/220:20:302
349847699118,1cyclictest0-21swapper/223:40:032
349847699118,1cyclictest0-21swapper/223:37:162
349847699117,2cyclictest0-21swapper/220:35:092
349847699116,3cyclictest3870775-21chrt23:05:122
349847699116,3cyclictest3563567-21chrt19:58:282
349847699112,2cyclictest0-21swapper/219:39:052
349847699111,8cyclictest0-21swapper/223:11:092
349847699111,7cyclictest3826615-21chrt22:40:262
349847699111,7cyclictest3570236-21chrt20:00:082
349847699111,7cyclictest35495912sleep219:46:072
349847699111,7cyclictest3498659-21taskset19:10:022
2213291112,2phc2sys0-21swapper/322:07:143
2213291111,5phc2sys0-21swapper/300:19:053
2213291111,2phc2sys0-21swapper/321:59:523
2213291110,3phc2sys0-21swapper/321:14:053
2213291110,2phc2sys0-21swapper/323:38:333
2213291110,2phc2sys0-21swapper/323:24:063
2213291110,2phc2sys0-21swapper/322:39:453
2213291110,2phc2sys0-21swapper/321:49:303
349847699108,1cyclictest0-21swapper/221:05:102
349847699108,1cyclictest0-21swapper/221:05:102
2213291102,2phc2sys0-21swapper/323:45:393
2213291101,2phc2sys0-21swapper/321:41:083
2213291101,2phc2sys0-21swapper/319:49:053
2213291101,2phc2sys0-21swapper/319:44:323
2213291100,6phc2sys3712928-21chrt21:38:463
2213291100,4phc2sys0-21swapper/320:44:063
2213291100,2phc2sys0-21swapper/323:34:123
2213291100,2phc2sys0-21swapper/323:15:363
2213291100,2phc2sys0-21swapper/321:25:533
2213291100,2phc2sys0-21swapper/319:34:263
2213291100,2phc2sys0-21swapper/319:29:053
2213291100,2phc2sys0-21swapper/319:22:393
2213291100,1phc2sys0-21swapper/320:00:313
2213291100,1phc2sys0-21swapper/300:10:293
221329191,2phc2sys0-21swapper/323:06:383
221329191,2phc2sys0-21swapper/319:09:053
221329190,3phc2sys0-21swapper/319:53:413
221329190,2phc2sys0-21swapper/320:58:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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