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2026-08-14 - 11:25
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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 Fri Aug 14, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365733021050,2sleep30-21swapper/321:55:263
35989262980,2sleep30-21swapper/321:15:263
3438000992522,2cyclictest3705621-21/usr/sbin/munin22:30:010
3438000992514,9cyclictest3580662-21munin-run21:05:020
3438000992412,10cyclictest3899746-21munin-run00:40:010
3438001992320,2cyclictest684-21systemd-logind21:55:021
3438001992320,2cyclictest664-21dbus-daemon22:10:011
3438001992320,2cyclictest3713373-21grep22:35:021
3438001992219,2cyclictest3773061-21dump-pmu-power23:15:011
3438000992219,2cyclictest3802982-21systemd23:35:010
3438000992219,2cyclictest3690487-21grep22:20:010
3438000992213,5cyclictest3693646-21kthreadcore22:20:250
3438002992118,1cyclictest0-21swapper/222:40:012
3438002992118,1cyclictest0-21swapper/221:10:012
3438001992118,2cyclictest3630972-21cron21:40:011
3438000992118,2cyclictest3810186-21apt-get23:40:010
3438000992118,2cyclictest3765939-21/usr/sbin/munin23:10:030
3438000992118,2cyclictest3720587-21latency_hist22:40:010
3438000992118,2cyclictest3437998-21cyclictest19:45:010
3438000992113,6cyclictest0-21swapper/000:15:030
3438000992113,6cyclictest0-21swapper/000:15:030
3438000992112,5cyclictest1307-21mta-sts-daemon23:45:390
3438002992017,1cyclictest0-21swapper/222:30:252
3438002992017,1cyclictest0-21swapper/222:20:012
3438002992017,1cyclictest0-21swapper/200:20:242
3438001992017,2cyclictest3817863-21grep23:45:011
3438001992017,2cyclictest3623849-21aten2.4-expect21:35:021
3438001992017,2cyclictest3445442-21kthreadcore19:15:021
343800099209,6cyclictest0-21swapper/023:00:000
3438000992012,7cyclictest0-21swapper/000:05:030
3438000992011,5cyclictest3661292-21cpuspeed22:00:180
3438002991916,1cyclictest0-21swapper/220:00:012
3438002991916,1cyclictest0-21swapper/200:40:032
343800199199,3cyclictest0-21swapper/100:05:221
3438001991917,1cyclictest0-21swapper/119:35:011
3438001991916,2cyclictest3877135-21idleruntime-cro00:25:011
3438001991916,2cyclictest3765831-21systemd-run23:10:021
3438001991916,2cyclictest0-21swapper/122:50:011
3438001991915,2cyclictest3840383-21systemd-run00:00:031
3438001991915,2cyclictest3594192-21aten2.4-expect21:15:021
3438001991911,3cyclictest0-21swapper/123:26:161
3438001991911,3cyclictest0-21swapper/120:30:021
343800099199,5cyclictest0-21swapper/022:15:020
343800099198,6cyclictest0-21swapper/020:00:010
3438000991916,2cyclictest664-21dbus-daemon21:15:010
3438000991916,2cyclictest3795342-21apt23:30:000
3438000991913,5cyclictest3654717-21irqcore21:55:240
3438002991816,1cyclictest0-21swapper/223:05:032
3438002991815,1cyclictest0-21swapper/222:02:062
3438002991815,1cyclictest0-21swapper/221:20:022
3438002991814,2cyclictest0-21swapper/222:15:022
3438001991816,1cyclictest3525782-21gpgv20:20:011
3438001991815,2cyclictest3884689-21systemctl00:30:011
3438001991815,2cyclictest3869839-21acpi00:20:021
3438001991815,2cyclictest3698364-21sh22:25:021
3438001991815,2cyclictest3655011-21kthreadcore21:55:251
3438001991815,2cyclictest3438128-21latency_hist19:10:021
3438001991815,2cyclictest0-21swapper/120:50:011
3438001991815,2cyclictest0-21swapper/120:15:021
3438001991814,3cyclictest3484744-21kthreadcore19:45:231
3438001991814,3cyclictest1-21systemd23:55:011
343800099187,6cyclictest0-21swapper/023:55:210
343800099187,6cyclictest0-21swapper/023:10:240
343800099187,6cyclictest0-21swapper/021:35:210
3438000991815,2cyclictest662-21avahi-daemon19:55:020
3438000991815,2cyclictest3707030-21ps22:30:230
3438000991815,2cyclictest3599352-21wc21:15:300
3438000991815,2cyclictest3483724-21cpuspeed_turbos19:45:180
3438000991813,2cyclictest1309-21mta-sts-daemon00:22:500
3438000991810,6cyclictest0-21swapper/021:45:030
3438000991810,5cyclictest3730202-21kthreadcore22:45:250
3438002991715,1cyclictest0-21swapper/222:30:022
3438002991714,1cyclictest0-21swapper/223:20:262
3438002991714,1cyclictest0-21swapper/222:55:012
3438002991714,1cyclictest0-21swapper/222:20:232
3438002991714,1cyclictest0-21swapper/221:55:222
3438002991714,1cyclictest0-21swapper/221:30:012
3438002991714,1cyclictest0-21swapper/221:00:212
3438002991713,2cyclictest0-21swapper/223:48:442
3438002991713,2cyclictest0-21swapper/221:35:022
3438002991713,2cyclictest0-21swapper/219:50:282
343800199178,3cyclictest0-21swapper/122:25:241
3438001991714,2cyclictest664-21dbus-daemon20:40:011
3438001991714,2cyclictest3787948-21grep23:25:001
3438001991714,2cyclictest3736454-21tr22:50:201
3438001991714,2cyclictest0-21swapper/123:20:031
3438001991714,2cyclictest0-21swapper/119:30:021
3438001991713,2cyclictest3458667-21sh19:25:021
343800099179,7cyclictest0-21swapper/022:40:080
3438000991714,2cyclictest3863284-21cut00:15:210
3438000991714,2cyclictest3675613-21sh22:10:010
3438000991714,2cyclictest3616274-21sh21:30:010
3438000991714,2cyclictest3538042-21sh20:30:010
3438000991714,2cyclictest3519746-21aten_repower_cu20:15:020
3438000991714,2cyclictest1-21systemd00:30:030
3438000991714,2cyclictest11574-21rtkit-daemon19:35:410
3438000991714,2cyclictest0-21swapper/019:15:020
3438000991711,2cyclictest1157598rtkit-daemon19:28:570
3240591170,2phc2sys0-21swapper/300:10:513
3240591170,2phc2sys0-21swapper/300:10:513
3438002991614,1cyclictest0-21swapper/223:15:312
3438002991614,1cyclictest0-21swapper/200:30:012
3438002991613,1cyclictest0-21swapper/223:59:052
3438002991613,1cyclictest0-21swapper/223:30:022
3438002991613,1cyclictest0-21swapper/222:45:192
3438002991613,1cyclictest0-21swapper/220:50:012
3438002991613,1cyclictest0-21swapper/220:06:542
3438002991613,1cyclictest0-21swapper/219:15:012
3438002991613,1cyclictest0-21swapper/200:16:562
3438002991612,2cyclictest0-21swapper/221:12:142
3438002991612,1cyclictest0-21swapper/221:22:272
343800199161,6cyclictest3568405-21munin-run20:55:011
3438001991613,2cyclictest3898032-21grep00:35:341
3438001991613,2cyclictest3727523-21sh22:43:381
3438001991613,2cyclictest3602477-21grep21:20:211
3438001991613,2cyclictest3583588-21kthreadcore21:05:261
3438001991613,2cyclictest3577796-21kthreadcore21:00:211
3438001991613,2cyclictest1300-21mta-sts-daemon00:00:221
3438001991613,2cyclictest0-21swapper/123:35:021
3438001991612,3cyclictest3675832-21kworker/u16:3+nfsiod23:00:271
3438001991612,3cyclictest3675832-21kworker/u16:3+nfsiod22:14:301
3438001991612,3cyclictest3610554-21kthreadcore21:25:261
3438001991611,4cyclictest3444111-21munin-node20:33:501
343800099169,6cyclictest3603738-21kthreadcore21:20:240
343800099167,4cyclictest664-21dbus-daemon20:10:020
343800099165,6cyclictest0-21swapper/021:33:150
3438000991613,2cyclictest3758344-21sh23:05:020
3438000991613,2cyclictest3532023-21systemd-run20:25:010
3438000991613,2cyclictest0-21swapper/023:55:020
3438000991612,2cyclictest0-21swapper/000:10:030
3438000991610,5cyclictest3887499-21kthreadcore00:30:250
3240591160,2phc2sys0-21swapper/323:35:283
3240591160,2phc2sys0-21swapper/321:41:323
343800299151,7cyclictest0-21swapper/220:20:012
3438002991513,1cyclictest0-21swapper/223:05:232
3438002991513,1cyclictest0-21swapper/220:35:012
3438002991512,1cyclictest0-21swapper/223:31:022
3438002991512,1cyclictest0-21swapper/221:52:392
3438002991512,1cyclictest0-21swapper/221:40:302
3438002991512,1cyclictest0-21swapper/220:00:232
3438002991512,1cyclictest0-21swapper/200:10:182
3438002991512,1cyclictest0-21swapper/200:10:182
3438002991512,1cyclictest0-21swapper/200:05:282
343800199158,4cyclictest1309-21mta-sts-daemon00:34:161
343800199157,3cyclictest0-21swapper/100:10:101
343800199157,3cyclictest0-21swapper/100:10:101
343800199156,4cyclictest0-21swapper/121:15:151
3438001991512,2cyclictest662-21avahi-daemon21:00:011
3438001991512,2cyclictest3714460-21if_err_enp1s0.822:35:221
3438001991512,2cyclictest3666017-21tr22:00:271
3438001991512,2cyclictest1306-21mta-sts-daemon19:35:381
3438001991512,2cyclictest0-21swapper/121:45:011
3438001991511,3cyclictest3821058-21kthreadcore23:45:241
343800099159,5cyclictest1300-21mta-sts-daemon23:17:490
3438000991512,2cyclictest838-21gmain19:10:020
3438000991512,2cyclictest3568530-21latency_hist20:55:010
3438000991512,2cyclictest1306-21mta-sts-daemon20:00:220
3438000991511,3cyclictest3780656-21kworker/u16:0+nfsiod23:42:020
3240591150,2phc2sys0-21swapper/322:02:323
3240591150,2phc2sys0-21swapper/319:45:233
3240591150,2phc2sys0-21swapper/300:35:313
343800299141,3cyclictest0-21swapper/219:20:012
3438002991412,1cyclictest0-21swapper/223:38:592
3438002991412,1cyclictest0-21swapper/223:10:532
3438002991412,1cyclictest0-21swapper/222:40:232
3438002991412,1cyclictest0-21swapper/200:31:472
3438002991411,1cyclictest0-21swapper/223:40:222
3438002991411,1cyclictest0-21swapper/222:05:062
3438002991411,1cyclictest0-21swapper/221:49:142
3438002991411,1cyclictest0-21swapper/220:25:262
3438002991411,1cyclictest0-21swapper/220:20:202
3438002991411,1cyclictest0-21swapper/219:50:022
3438002991411,1cyclictest0-21swapper/219:35:232
3438002991411,1cyclictest0-21swapper/219:25:012
3438002991410,2cyclictest0-21swapper/223:50:212
3438002991410,2cyclictest0-21swapper/200:02:592
3438001991411,2cyclictest3808014-21grep23:35:261
3438001991411,2cyclictest3746971-21kthreadcore22:55:241
3438001991411,2cyclictest3685068-21kthreadcore22:15:231
3438001991411,2cyclictest3643737-21phc2sys21:45:301
3438001991411,2cyclictest0-21swapper/119:45:011
3438001991410,3cyclictest3528415-21kthreadcore20:20:221
3438001991410,3cyclictest3502851-21irqrtprio20:00:231
3438001991410,3cyclictest3495837-21cpuspeed_turbos19:55:181
3438001991410,3cyclictest3493690-21kthreadcore19:50:251
343800099149,2cyclictest1300-21mta-sts-daemon22:51:490
343800099148,5cyclictest3594009-21kworker/u16:1-events_power_efficient21:40:060
3438000991411,2cyclictest3649124-21kthreadcore21:50:270
3438000991411,2cyclictest3559322-21kthreadcore20:45:260
3438000991411,2cyclictest3553249-21kthreadcore20:40:230
3438000991411,2cyclictest3539404-21sed20:30:220
3438000991411,2cyclictest3469734-21kthreadcore19:30:260
3438000991411,2cyclictest3455862-21kthreadcore19:20:240
3438000991411,2cyclictest3449399-21kthreadcore19:15:270
3438000991411,2cyclictest1307-21mta-sts-daemon23:20:250
3438000991411,2cyclictest1300-21mta-sts-daemon20:35:150
3240591140,2phc2sys0-21swapper/323:43:043
3240591140,2phc2sys0-21swapper/323:08:193
3240591140,2phc2sys0-21swapper/300:00:373
343800299139,2cyclictest0-21swapper/222:55:142
343800299139,2cyclictest0-21swapper/220:10:272
343800299137,4cyclictest0-21swapper/219:45:022
3438002991311,1cyclictest0-21swapper/221:35:242
3438002991310,1cyclictest0-21swapper/220:38:392
3438002991310,1cyclictest0-21swapper/219:25:272
3438001991310,2cyclictest3446015-21fschecks_time19:15:031
3438000991310,2cyclictest3582379-21kthreadcore21:05:240
3438000991310,2cyclictest3569673-21irqcore20:55:210
3240591131,5phc2sys0-21swapper/319:15:043
3240591131,3phc2sys0-21swapper/320:04:593
3240591130,2phc2sys0-21swapper/322:55:083
3240591130,2phc2sys0-21swapper/321:53:193
3240591130,2phc2sys0-21swapper/321:45:523
3240591130,2phc2sys0-21swapper/319:59:223
3240591130,1phc2sys0-21swapper/321:13:113
343800299129,1cyclictest0-21swapper/220:55:212
3438002991210,1cyclictest0-21swapper/220:50:232
3438002991210,1cyclictest0-21swapper/219:32:352
343800199129,2cyclictest3551678-21irqrtprio20:40:211
343800199125,5cyclictest3508308-21cut20:05:171
343800099129,2cyclictest3520872-21irqcore20:15:230
3240591124,2phc2sys0-21swapper/322:12:033
3240591123,2phc2sys0-21swapper/323:45:263
3240591123,1phc2sys0-21swapper/320:10:123
3240591121,3phc2sys0-21swapper/323:10:403
3240591121,2phc2sys0-21swapper/322:05:293
3240591120,3phc2sys0-21swapper/319:15:013
3240591120,2phc2sys0-21swapper/323:59:453
3240591120,2phc2sys0-21swapper/323:52:103
3240591120,2phc2sys0-21swapper/321:35:033
3240591120,2phc2sys0-21swapper/321:33:003
3240591120,2phc2sys0-21swapper/320:35:203
3240591120,2phc2sys0-21swapper/320:20:143
3240591120,2phc2sys0-21swapper/319:05:383
3240591120,2phc2sys0-21swapper/300:08:553
3240591120,1phc2sys0-21swapper/300:32:593
3240591120,1phc2sys0-21swapper/300:19:183
343800299119,1cyclictest0-21swapper/220:40:212
3240591115,2phc2sys0-21swapper/323:31:463
3240591113,2phc2sys0-21swapper/320:30:193
3240591112,2phc2sys0-21swapper/322:40:493
3240591111,2phc2sys0-21swapper/323:20:413
3240591110,2phc2sys0-21swapper/323:29:483
3240591110,2phc2sys0-21swapper/322:22:533
3240591110,1phc2sys0-21swapper/322:15:393
3240591110,1phc2sys0-21swapper/321:01:013
3240591110,1phc2sys0-21swapper/319:23:063
3240591110,1phc2sys0-21swapper/300:24:033
3240591101,3phc2sys0-21swapper/320:10:023
3240591101,2phc2sys0-21swapper/319:40:233
3240591100,4phc2sys0-21swapper/319:35:013
3240591100,3phc2sys0-21swapper/321:06:083
3240591100,2phc2sys0-21swapper/323:16:203
3240591100,2phc2sys0-21swapper/322:53:003
3240591100,2phc2sys0-21swapper/322:46:583
3240591100,2phc2sys0-21swapper/322:34:223
3240591100,2phc2sys0-21swapper/322:27:183
3240591100,2phc2sys0-21swapper/321:22:213
3240591100,2phc2sys0-21swapper/320:50:193
3240591100,2phc2sys0-21swapper/300:26:003
3240591100,1phc2sys0-21swapper/320:57:443
34380029991,5cyclictest0-21swapper/219:10:022
324059191,2phc2sys0-21swapper/320:25:223
324059191,2phc2sys0-21swapper/320:15:253
324059190,2phc2sys0-21swapper/323:01:493
324059190,2phc2sys0-21swapper/322:35:043
324059190,2phc2sys0-21swapper/321:25:253
324059190,2phc2sys0-21swapper/320:42:103
324059190,2phc2sys0-21swapper/319:50:203
324059190,2phc2sys0-21swapper/319:35:213
324059190,2phc2sys0-21swapper/319:25:113
324059190,1phc2sys0-21swapper/320:45:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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