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2026-09-16 - 08:59
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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 rackcslot2.osadl.org (updated Wed Sep 16, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2431121960,1sleep00-21swapper/019:03:120
257022700,1sleep10-21swapper/121:33:111
257022700,1sleep10-21swapper/121:33:111
2494326957,8sleep10-21swapper/119:06:011
32532650,0sleep00-21swapper/000:02:100
25303993736,0cyclictest0-21swapper/123:25:301
25303993410,4cyclictest0-21swapper/121:19:311
25303993410,23cyclictest0-21swapper/123:14:201
25303993131,0cyclictest0-21swapper/122:08:451
25303992810,0cyclictest0-21swapper/120:28:161
2530399280,23cyclictest0-21swapper/121:24:211
25302992810,17cyclictest0-21swapper/020:03:080
2530299280,6cyclictest81ktimersoftd/020:43:140
25302992710,1cyclictest0-21swapper/023:46:250
25303992624,1cyclictest0-21swapper/122:55:261
25303992613,9cyclictest100250irq/107-eth1-rx22:58:001
25302992613,10cyclictest100150irq/106-eth1-rx22:04:360
2530399259,11cyclictest0-21swapper/122:30:081
25303992517,7cyclictest3506-21apache221:14:591
25303992514,0cyclictest0-21swapper/122:49:591
25303992510,9cyclictest0-21swapper/120:19:151
2530399250,2cyclictest0-21swapper/122:39:491
2530399250,24cyclictest0-21swapper/123:47:281
2530299250,7cyclictest18625-21http_loadtime22:08:070
25303992424,0cyclictest0-21swapper/100:23:441
25303992422,1cyclictest0-21swapper/123:34:161
25303992418,2cyclictest25300-21cyclictest22:23:041
2530399241,22cyclictest0-21swapper/119:18:141
2530399240,2cyclictest0-21swapper/100:16:581
25302992417,4cyclictest3506-21apache223:10:530
25302992410,4cyclictest0-21swapper/021:00:330
25303992322,1cyclictest3506-21apache223:10:571
25303992320,2cyclictest3506-21apache222:04:471
25303992317,5cyclictest24479-21snmpd23:48:391
25303992310,9cyclictest0-21swapper/100:35:081
25303992310,6cyclictest0-21swapper/119:34:061
2530299232,5cyclictest91rcu_preempt23:18:030
25302992323,0cyclictest7-21ksoftirqd/022:48:050
25302992317,4cyclictest3506-21apache223:49:510
2530299230,22cyclictest0-21swapper/023:13:280
2530299230,1cyclictest0-21swapper/022:25:010
2530399223,8cyclictest29445-21ssh21:38:091
25303992210,8cyclictest0-21swapper/119:43:041
25302992222,0cyclictest7-21ksoftirqd/020:57:530
25302992222,0cyclictest0-21swapper/000:05:150
25302992219,2cyclictest3583-21ssh22:32:220
25302992212,8cyclictest100150irq/106-eth1-rx23:01:520
640922110,0sleep10-21swapper/100:06:531
25303992111,4cyclictest0-21swapper/123:38:541
25303992110,1cyclictest0-21swapper/122:14:201
25302992121,0cyclictest0-21swapper/023:06:590
25302992121,0cyclictest0-21swapper/021:38:200
25302992117,3cyclictest7-21ksoftirqd/020:08:140
25302992110,9cyclictest0-21swapper/023:25:280
25302992110,7cyclictest0-21swapper/022:13:130
25302992110,5cyclictest0-21swapper/021:48:130
25302992110,3cyclictest0-21swapper/023:33:480
25302992110,3cyclictest0-21swapper/022:53:160
2932122010,0sleep00-21swapper/023:53:070
2530399205,12cyclictest0-21swapper/123:18:041
25303992020,0cyclictest0-21swapper/123:56:331
25303992020,0cyclictest0-21swapper/121:44:501
25303992019,0cyclictest11582-21kworker/u4:000:09:521
25303992010,1cyclictest0-21swapper/119:27:071
2530399200,11cyclictest0-21swapper/119:13:141
2530299204,9cyclictest0-21swapper/022:33:040
25302992020,0cyclictest0-21swapper/020:29:510
25302992018,1cyclictest7-21ksoftirqd/021:22:530
25302992017,2cyclictest7-21ksoftirqd/021:57:530
25302992014,5cyclictest24479-21snmpd00:31:070
25302992011,3cyclictest0-21swapper/020:18:060
2530399198,9cyclictest0-21swapper/121:58:061
2530399197,10cyclictest0-21swapper/119:28:061
2530399195,7cyclictest0-21swapper/120:53:131
2530399194,11cyclictest0-21swapper/120:08:101
2530399193,8cyclictest0-21swapper/100:28:121
25303991919,0cyclictest0-21swapper/122:46:051
25303991912,3cyclictest271822sleep122:18:531
25303991912,3cyclictest26519-21munin-node20:46:501
25303991911,1cyclictest3534-21apache221:31:261
25303991910,4cyclictest0-21swapper/121:49:101
25303991910,4cyclictest0-21swapper/121:08:091
25303991910,3cyclictest0-21swapper/121:53:041
25303991910,2cyclictest0-21swapper/122:33:071
2530299194,11cyclictest0-21swapper/000:08:030
2530299192,11cyclictest0-21swapper/020:48:110
25302991919,0cyclictest0-21swapper/021:45:350
25302991918,1cyclictest25300-21cyclictest23:39:280
25302991917,1cyclictest7-21ksoftirqd/019:23:120
25302991917,1cyclictest7-21ksoftirqd/000:24:170
25302991910,2cyclictest0-21swapper/000:33:280
2530299190,10cyclictest0-21swapper/020:23:110
2530399185,5cyclictest0-21swapper/119:58:051
2530399183,9cyclictest0-21swapper/119:48:411
2530399183,11cyclictest0-21swapper/119:08:041
25303991813,5cyclictest3506-21apache200:02:301
25303991813,4cyclictest3506-21apache200:22:231
25303991810,5cyclictest0-21swapper/120:38:061
25303991810,5cyclictest0-21swapper/119:39:331
2530299189,2cyclictest11017-21ntp_states19:53:120
2530299186,8cyclictest0-21swapper/022:43:070
2530299186,3cyclictest22560-21/usr/sbin/munin21:28:130
2530299184,5cyclictest91rcu_preempt21:23:080
2530299183,8cyclictest0-21swapper/022:38:090
2530299183,6cyclictest0-21swapper/000:18:100
2530299181,8cyclictest8248-21/usr/sbin/munin21:53:090
25302991816,1cyclictest7-21ksoftirqd/019:58:110
25302991812,2cyclictest1820-21grep19:28:140
25302991810,8cyclictest0-21swapper/019:08:120
25302991810,5cyclictest0-21swapper/020:42:530
25302991810,4cyclictest0-21swapper/021:17:250
25302991810,4cyclictest0-21swapper/019:19:350
25302991810,3cyclictest0-21swapper/019:33:030
2530299180,11cyclictest0-21swapper/022:18:110
2530399174,7cyclictest0-21swapper/123:28:041
2530399173,8cyclictest0-21swapper/123:03:041
2530399172,11cyclictest0-21swapper/120:58:121
25303991711,2cyclictest0-21swapper/121:03:111
25303991710,3cyclictest0-21swapper/120:48:051
2530299177,7cyclictest91rcu_preempt19:48:060
25302991711,3cyclictest0-21swapper/000:14:490
25302991710,3cyclictest0-21swapper/019:43:160
25302991710,2cyclictest0-21swapper/021:33:070
25302991710,2cyclictest0-21swapper/021:33:070
25302991710,1cyclictest0-21swapper/020:13:050
25302991710,1cyclictest0-21swapper/019:42:530
2704521610,0sleep00-21swapper/020:34:520
2530399166,7cyclictest0-21swapper/120:37:531
2530399163,4cyclictest1199-21runrttasks20:03:251
2530399162,10cyclictest24479-21snmpd19:57:071
2530399160,10cyclictest0-21swapper/120:13:101
2530299164,6cyclictest0-21swapper/021:04:290
25302991614,0cyclictest100150irq/106-eth1-rx21:08:110
25302991610,3cyclictest0-21swapper/023:28:130
25302991610,3cyclictest0-21swapper/019:13:060
25303991510,0cyclictest0-21swapper/120:25:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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