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2026-07-22 - 05:20
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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 the highest latencies:
System rackeslot2.osadl.org (updated Wed Jul 22, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
349909321050,1sleep10-21swapper/123:53:101
35322482670,1sleep03532251-21cut00:16:060
33529242330,1sleep10-21swapper/122:16:031
3106203993214,10cyclictest0-21swapper/021:15:580
34686622300,2sleep30-21swapper/323:31:123
310620399267,14cyclictest0-21swapper/021:50:590
3240591241,2phc2sys0-21swapper/323:36:073
3106204992219,2cyclictest3514883-21grep00:05:021
3106203992211,6cyclictest0-21swapper/023:01:080
3106204992118,2cyclictest3314023-21grep21:50:021
3106204992114,3cyclictest1053-21snmpd22:46:081
3106203992118,2cyclictest3218071-21sh20:40:020
3106203992112,4cyclictest664-21dbus-daemon22:55:010
3106203992111,6cyclictest0-21swapper/023:45:020
3106203992110,6cyclictest0-21swapper/023:58:030
3106203992110,6cyclictest0-21swapper/021:41:010
3106204992017,2cyclictest3471711-21irqcore23:36:041
3106204992017,2cyclictest3106201-21cyclictest00:20:031
3106204992013,3cyclictest3341977-21pmu-power22:06:121
3106203992017,2cyclictest3388508-21systemd-run22:40:010
3106203992012,7cyclictest0-21swapper/021:40:010
31894822190,1sleep00-21swapper/020:16:070
3106205991916,1cyclictest0-21swapper/222:26:092
3106205991916,1cyclictest0-21swapper/220:45:032
3106204991916,2cyclictest3485551-21/usr/sbin/munin23:46:011
3106204991916,2cyclictest3462690-21grep23:30:011
3106204991916,2cyclictest0-21swapper/122:05:031
3106203991917,1cyclictest3508646-21sshd00:01:040
3106203991916,2cyclictest664-21dbus-daemon20:00:010
3106203991916,2cyclictest3307286-21aten2.4-expect21:46:000
3106203991916,2cyclictest0-21swapper/023:30:010
3240591180,2phc2sys0-21swapper/300:23:523
3106205991816,1cyclictest0-21swapper/222:15:022
3106205991815,1cyclictest0-21swapper/223:00:012
3106205991815,1cyclictest0-21swapper/222:51:192
3106205991815,1cyclictest0-21swapper/220:58:282
3106205991815,1cyclictest0-21swapper/219:21:052
3106205991815,1cyclictest0-21swapper/219:15:032
3106205991815,1cyclictest0-21swapper/200:19:552
3106205991814,2cyclictest0-21swapper/221:26:012
3106205991814,2cyclictest0-21swapper/221:11:002
310620499189,4cyclictest0-21swapper/121:56:021
3106204991816,1cyclictest3366304-21/usr/sbin/munin22:25:001
3106204991815,2cyclictest3438305-21grep23:11:101
3106204991815,2cyclictest3199776-21sh20:25:011
3106204991814,2cyclictest0-21swapper/123:20:031
3106204991810,3cyclictest0-21swapper/100:25:031
310620399188,5cyclictest0-21swapper/021:11:040
310620399188,5cyclictest0-21swapper/000:34:240
310620399186,6cyclictest0-21swapper/021:21:010
310620399186,4cyclictest664-21dbus-daemon20:10:020
3106203991816,1cyclictest0-21swapper/000:30:020
3106203991815,2cyclictest3486281-21gltestperf23:46:030
3106203991815,2cyclictest3242358-21apt-key21:00:000
3106203991815,2cyclictest3230206-21latency_hist20:50:010
3106203991815,2cyclictest0-21swapper/022:20:010
3106203991815,2cyclictest0-21swapper/021:10:030
3106203991814,2cyclictest0-21swapper/023:25:020
3106203991814,2cyclictest0-21swapper/000:15:030
3106203991812,5cyclictest0-21swapper/019:15:000
1157598180,3rtkit-daemon1306-21mta-sts-daemon20:44:371
3240591170,3phc2sys0-21swapper/323:41:443
310620599171,9cyclictest0-21swapper/220:30:592
3106205991715,1cyclictest0-21swapper/223:50:032
3106205991715,1cyclictest0-21swapper/223:14:432
3106205991715,1cyclictest0-21swapper/223:05:592
3106205991715,1cyclictest0-21swapper/200:15:022
3106205991714,1cyclictest0-21swapper/222:10:022
3106205991714,1cyclictest0-21swapper/220:00:012
3106205991714,1cyclictest0-21swapper/219:55:012
3106205991714,1cyclictest0-21swapper/200:26:132
3106205991713,2cyclictest0-21swapper/221:18:202
3106205991713,2cyclictest0-21swapper/200:30:572
3106205991710,3cyclictest0-21swapper/220:11:002
310620499179,3cyclictest3504417-21kthreadcore23:56:061
310620499179,3cyclictest0-21swapper/121:50:591
3106204991714,2cyclictest684-21systemd-logind20:50:001
3106204991714,2cyclictest3455490-21latency_hist23:25:031
3106204991714,2cyclictest3344991-21fschecks_count22:11:021
3106204991714,2cyclictest3236901-21tr20:56:021
3106204991713,3cyclictest684-21systemd-logind23:05:011
3106204991713,3cyclictest3377329-21kthreadcore22:31:081
3106204991711,4cyclictest664-21dbus-daemon19:15:011
310620499170,4cyclictest3431852-21ssh23:07:191
310620399179,4cyclictest0-21swapper/000:06:000
310620399178,5cyclictest0-21swapper/022:00:010
310620399177,5cyclictest0-21swapper/023:06:040
3106203991715,1cyclictest0-21swapper/023:00:010
3106203991714,2cyclictest664-21dbus-daemon23:35:010
3106203991714,2cyclictest3544909-21systemd-run00:25:010
3106203991714,2cyclictest3152368-21gltestperf19:46:040
3106203991710,6cyclictest3442206-21irqcore23:16:060
3240591160,3phc2sys0-21swapper/321:32:023
3240591160,1phc2sys0-21swapper/321:59:073
310620599162,1cyclictest0-21swapper/220:37:182
310620599161,7cyclictest0-21swapper/220:45:592
3106205991614,1cyclictest0-21swapper/223:40:452
3106205991614,1cyclictest0-21swapper/222:40:012
3106205991614,1cyclictest0-21swapper/219:50:022
3106205991614,1cyclictest0-21swapper/219:31:552
3106205991613,2cyclictest0-21swapper/222:40:042
3106205991613,1cyclictest0-21swapper/223:24:212
3106205991613,1cyclictest0-21swapper/223:01:052
3106205991613,1cyclictest0-21swapper/222:46:042
3106205991613,1cyclictest0-21swapper/222:00:012
3106205991613,1cyclictest0-21swapper/221:55:012
3106205991613,1cyclictest0-21swapper/221:35:252
3106205991613,1cyclictest0-21swapper/221:01:032
3106205991613,1cyclictest0-21swapper/220:50:582
3106205991613,1cyclictest0-21swapper/220:26:072
3106205991613,1cyclictest0-21swapper/219:35:362
3106205991613,1cyclictest0-21swapper/200:36:042
3106205991613,1cyclictest0-21swapper/200:01:102
3106205991612,1cyclictest0-21swapper/221:42:062
3106204991613,2cyclictest759-1atopacctd00:37:181
3106204991613,2cyclictest3548586-21tr00:26:071
3106204991613,2cyclictest3529811-21latency_hist00:15:021
3106204991613,2cyclictest3413639-21kthreadcore22:56:071
3106204991613,2cyclictest3406320-21kthreadcore22:51:051
3106204991613,2cyclictest3300132-21cpuspeed_turbos21:41:011
3106204991613,2cyclictest3255328-21/usr/sbin/munin21:11:111
3106204991613,2cyclictest3201265-21irqrtprio20:26:071
3106204991613,2cyclictest0-21swapper/121:20:011
3106204991612,3cyclictest3214363-21kthreadcore20:36:041
3106204991610,2cyclictest3288960-21kthreadcore21:31:071
310620399169,6cyclictest0-21swapper/022:46:060
310620399164,3cyclictest3367348-21cstates22:26:020
3106203991614,1cyclictest1034-21runrttasks22:21:420
3106203991613,2cyclictest3560734-21tail00:35:590
3106203991613,2cyclictest3375981-21kthreadcore22:31:070
3106203991613,2cyclictest1306-21mta-sts-daemon19:40:020
3106203991613,2cyclictest1-21systemd23:55:000
3106203991610,5cyclictest3112716-21munin-node19:53:370
3106203991610,5cyclictest11574-21rtkit-daemon22:12:380
310620399160,15cyclictest3342076-21ssh22:06:130
3240591151,3phc2sys35149762sleep300:05:113
3240591150,2phc2sys0-21swapper/322:16:563
3240591150,2phc2sys0-21swapper/300:31:273
3106205991513,1cyclictest0-21swapper/222:20:132
3106205991513,1cyclictest0-21swapper/221:46:102
3106205991513,1cyclictest0-21swapper/220:25:022
3106205991513,1cyclictest0-21swapper/200:20:042
3106205991512,1cyclictest0-21swapper/222:31:022
3106205991512,1cyclictest0-21swapper/222:00:212
3106205991512,1cyclictest0-21swapper/221:21:032
3106205991512,1cyclictest0-21swapper/200:07:442
3106205991511,2cyclictest0-21swapper/221:06:012
3106205991510,2cyclictest0-21swapper/220:00:582
3106204991512,2cyclictest672-21polkitd19:55:011
3106204991512,2cyclictest664-21dbus-daemon19:45:021
3106204991512,2cyclictest3558000-21needreboot00:31:071
3106204991512,2cyclictest3390263-21irqrtprio22:41:041
3106204991512,2cyclictest3176652-21gltestperf20:06:031
3106204991512,2cyclictest3106201-21cyclictest20:11:071
3106204991511,3cyclictest70-21kcompactd020:01:061
3106204991511,3cyclictest3386078-21kthreadcore22:36:091
3106204991511,3cyclictest3251999-21kthreadcore21:06:091
3106204991511,3cyclictest3122302-21irqcore19:21:041
310620399158,5cyclictest3435282-21cut23:11:060
3106203991512,2cyclictest759-1atopacctd21:01:080
3106203991512,2cyclictest3127660-21cpuspeed_turbos19:26:010
3106203991512,2cyclictest3126987-21latency_hist19:25:010
3106203991511,2cyclictest3187807-21latency_hist20:15:020
3106203991510,4cyclictest715-21wpa_supplicant20:53:260
3106203991510,2cyclictest1306-21mta-sts-daemon21:28:420
310620399150,4cyclictest3205862-21latency_hist20:30:010
1157598150,1rtkit-daemon0-21swapper/100:06:211
3240591141,3phc2sys0-21swapper/323:00:593
3240591140,2phc2sys0-21swapper/321:49:493
3240591140,2phc2sys0-21swapper/319:38:073
3240591140,2phc2sys0-21swapper/300:04:163
3240591140,1phc2sys0-21swapper/322:51:373
3106205991413,1cyclictest0-21swapper/223:54:552
3106205991413,1cyclictest0-21swapper/220:16:552
3106205991412,1cyclictest0-21swapper/222:15:062
3106205991412,1cyclictest0-21swapper/220:09:072
3106205991412,1cyclictest0-21swapper/219:25:442
3106205991412,1cyclictest0-21swapper/219:11:032
3106205991411,1cyclictest0-21swapper/223:56:052
3106205991411,1cyclictest0-21swapper/223:37:152
3106205991411,1cyclictest0-21swapper/223:30:262
3106205991411,1cyclictest0-21swapper/223:26:062
3106205991411,1cyclictest0-21swapper/223:16:042
3106205991411,1cyclictest0-21swapper/221:35:032
310620499143,3cyclictest0-21swapper/121:25:241
3106204991411,2cyclictest3465148-21kthreadcore23:31:051
3106204991411,2cyclictest3367451-21sh22:26:021
3106204991411,2cyclictest3299396-21latency_hist21:40:031
3106204991411,2cyclictest3275002-21phc2sys21:21:111
3106204991411,2cyclictest3232767-21kthreadcore20:51:061
3106204991411,2cyclictest3211907-21latency_hist20:35:031
3106204991411,2cyclictest3165632-21kthreadcore19:56:071
3106204991411,2cyclictest3139575-21aten_repower_fr19:36:001
3106204991411,2cyclictest1306-21mta-sts-daemon23:44:031
3106204991410,3cyclictest3190780-21kthreadcore20:16:081
3106204991410,3cyclictest3113465-21kthreadcore19:15:041
310620499140,3cyclictest0-21swapper/121:01:181
310620399149,2cyclictest1309-21mta-sts-daemon22:03:390
310620399148,5cyclictest1309-21mta-sts-daemon20:31:120
3106203991412,1cyclictest0-21swapper/019:10:030
3106203991411,2cyclictest3394147-21mailstats22:41:100
3106203991411,2cyclictest3218633-21cpuspeed_turbos20:41:030
3106203991411,2cyclictest3134116-21gltestperf19:31:020
3106203991411,2cyclictest1300-21mta-sts-daemon21:30:530
310620399140,13cyclictest3477520-21cat23:40:010
3240591133,2phc2sys0-21swapper/323:46:053
3240591130,3phc2sys0-21swapper/300:10:583
3240591130,2phc2sys0-21swapper/323:51:383
3240591130,2phc2sys0-21swapper/322:10:373
3240591130,2phc2sys0-21swapper/321:41:563
3240591130,1phc2sys0-21swapper/323:15:033
3240591130,1phc2sys0-21swapper/322:56:583
3106205991311,1cyclictest0-21swapper/219:10:022
3106205991310,1cyclictest0-21swapper/219:40:082
310620499134,6cyclictest501rcuop/219:31:061
3106204991310,2cyclictest3152729-21irqcore19:46:061
310620499130,1cyclictest0-21swapper/119:25:591
310620399138,4cyclictest3170907-21irqrtprio20:01:040
310620399135,7cyclictest3115253-21head19:16:020
3106203991310,2cyclictest3146963-21kthreadcore19:41:050
3240591121,2phc2sys0-21swapper/321:06:093
3240591121,2phc2sys0-21swapper/320:51:103
3240591120,2phc2sys0-21swapper/323:57:153
3240591120,2phc2sys0-21swapper/322:20:273
3240591120,2phc2sys0-21swapper/321:38:153
3240591120,2phc2sys0-21swapper/321:19:103
3240591120,2phc2sys0-21swapper/320:11:333
3240591120,2phc2sys0-21swapper/319:15:043
3240591120,2phc2sys0-21swapper/300:38:513
3240591120,2phc2sys0-21swapper/300:15:313
3240591120,1phc2sys0-21swapper/319:59:083
310620499129,2cyclictest0-21swapper/119:10:031
310620399127,4cyclictest1306-21mta-sts-daemon20:20:460
3240591114,3phc2sys0-21swapper/319:35:013
3240591110,5phc2sys0-21swapper/322:40:583
3240591110,2phc2sys0-21swapper/322:48:493
3240591110,2phc2sys0-21swapper/321:01:083
3240591110,2phc2sys0-21swapper/319:46:063
3240591110,1phc2sys0-21swapper/323:15:383
3240591110,1phc2sys0-21swapper/320:23:123
3240591110,1phc2sys0-21swapper/300:28:213
3240591102,2phc2sys0-21swapper/321:51:053
3240591102,2phc2sys0-21swapper/320:01:003
3240591101,4phc2sys0-21swapper/319:05:573
3240591101,2phc2sys0-21swapper/323:20:593
3240591101,2phc2sys0-21swapper/321:11:023
3240591101,2phc2sys0-21swapper/320:56:033
3240591101,2phc2sys0-21swapper/320:41:043
3240591101,2phc2sys0-21swapper/320:06:093
3240591100,2phc2sys0-21swapper/323:27:133
3240591100,2phc2sys0-21swapper/322:38:353
3240591100,2phc2sys0-21swapper/322:33:103
3240591100,2phc2sys0-21swapper/322:04:203
3240591100,2phc2sys0-21swapper/321:25:183
3240591100,2phc2sys0-21swapper/321:21:233
3240591100,2phc2sys0-21swapper/320:50:023
3240591100,2phc2sys0-21swapper/320:16:033
3240591100,2phc2sys0-21swapper/319:11:033
3240591100,1phc2sys0-21swapper/320:34:303
324059190,2phc2sys0-21swapper/323:05:523
324059190,2phc2sys0-21swapper/322:27:413
324059190,2phc2sys0-21swapper/322:06:043
324059190,2phc2sys0-21swapper/320:35:593
324059190,2phc2sys0-21swapper/320:26:093
324059190,2phc2sys0-21swapper/319:44:053
324059190,2phc2sys0-21swapper/319:21:053
324059180,2phc2sys0-21swapper/319:50:583
324059180,2phc2sys0-21swapper/319:25:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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