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2026-05-24 - 06:34
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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 Sun May 24, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
296328053,22sleep10-21swapper/119:05:481
284026947,17sleep00-21swapper/019:04:300
65732570,0sleep00-21swapper/022:19:100
283042470,1sleep028301-21ssh22:49:030
3440993733,4cyclictest0-21swapper/019:23:050
344199300,0cyclictest0-21swapper/119:50:141
3440993029,1cyclictest31706-21apache223:03:310
3440992928,0cyclictest0-21swapper/021:09:280
3440992921,6cyclictest744-21snmpd00:05:110
344199287,20cyclictest0-21swapper/123:49:501
3441992810,17cyclictest0-21swapper/122:16:181
344199280,27cyclictest0-21swapper/119:54:111
3440992810,1cyclictest0-21swapper/021:24:220
344099280,24cyclictest0-21swapper/021:21:300
3441992723,3cyclictest31690-21apache200:36:291
344199270,1cyclictest0-21swapper/123:40:541
3440992710,16cyclictest0-21swapper/020:27:130
3440992710,14cyclictest0-21swapper/019:39:040
3440992710,0cyclictest0-21swapper/023:19:050
344199260,2cyclictest6200-21grep23:44:131
3440992610,14cyclictest100250irq/107-eth1-rx22:08:570
344199257,17cyclictest0-21swapper/119:36:301
3441992518,6cyclictest31706-21apache221:28:541
344199250,25cyclictest0-21swapper/122:31:241
344199250,25cyclictest0-21swapper/120:48:161
344099252,3cyclictest0-21swapper/022:44:580
3440992518,4cyclictest0-21swapper/021:39:070
3440992511,5cyclictest0-21swapper/023:59:060
344099250,21cyclictest0-21swapper/019:14:470
344199249,14cyclictest0-21swapper/119:48:181
3441992418,5cyclictest31690-21apache222:44:111
3441992417,4cyclictest31706-21apache221:54:241
3441992410,2cyclictest0-21swapper/121:24:051
3441992410,2cyclictest0-21swapper/100:19:431
344099241,8cyclictest0-21swapper/021:46:390
3440992416,5cyclictest100150irq/106-eth1-rx22:39:030
344199239,12cyclictest0-21swapper/119:28:561
3441992321,1cyclictest0-21swapper/121:36:241
3441992318,5cyclictest31690-21apache219:15:091
3441992318,4cyclictest31690-21apache221:46:271
3441992316,6cyclictest24972-21ssh00:11:141
344099238,12cyclictest0-21swapper/019:26:350
3441992217,3cyclictest31706-21apache222:11:021
3441992215,2cyclictest8019-21sh21:39:031
3441992210,4cyclictest0-21swapper/100:29:031
344199220,1cyclictest0-21swapper/121:00:441
3440992222,0cyclictest0-21swapper/000:28:450
3440992212,6cyclictest16555-21ssh22:33:190
3440992212,6cyclictest100150irq/106-eth1-rx21:16:340
3440992211,8cyclictest6461-1kworker/u5:223:06:170
3440992210,3cyclictest0-21swapper/023:09:040
344099220,16cyclictest100250irq/107-eth1-rx23:14:220
2421022210,0sleep00-21swapper/020:01:520
344199216,8cyclictest0-21swapper/121:04:041
344199214,9cyclictest0-21swapper/123:09:071
3441992121,0cyclictest0-21swapper/123:33:561
3441992121,0cyclictest0-21swapper/100:02:301
3441992120,1cyclictest31706-21apache222:08:261
3441992120,1cyclictest0-21swapper/100:06:301
3441992118,3cyclictest744-21snmpd23:21:221
3441992117,3cyclictest31690-21apache223:17:381
3441992112,1cyclictest0-21swapper/119:24:121
3441992110,6cyclictest0-21swapper/123:26:591
3441992110,5cyclictest0-21swapper/122:43:481
3441992110,3cyclictest0-21swapper/121:14:441
344199210,21cyclictest0-21swapper/122:28:321
344199210,20cyclictest25271-21kworker/1:022:50:011
344099218,8cyclictest26493-21apache_volume20:09:030
344099215,10cyclictest0-21swapper/021:54:040
344099213,9cyclictest0-21swapper/000:10:070
3440992119,2cyclictest81ktimersoftd/022:01:170
3440992116,4cyclictest636-21nscd22:08:330
3440992112,4cyclictest0-21swapper/023:48:360
344099211,19cyclictest10633-21grep22:24:120
344099210,21cyclictest0-21swapper/023:27:450
344199203,10cyclictest0-21swapper/121:09:121
3441992014,4cyclictest6355-21ssh23:02:471
3441992010,8cyclictest0-21swapper/121:20:031
3441992010,5cyclictest0-21swapper/122:21:431
3441992010,0cyclictest0-21swapper/123:04:161
344099207,9cyclictest12228-21ssh00:37:330
344099207,11cyclictest0-21swapper/020:14:110
3440992012,3cyclictest0-21swapper/023:53:530
3440992011,5cyclictest17661-21grep19:44:100
3440992011,4cyclictest81ktimersoftd/023:34:030
3440992010,5cyclictest0-21swapper/023:33:060
3440992010,4cyclictest0-21swapper/020:29:090
3440992010,3cyclictest0-21swapper/022:33:560
1780022010,0sleep10-21swapper/121:50:541
344199198,6cyclictest0-21swapper/120:32:161
344199196,5cyclictest0-21swapper/119:20:571
344199192,7cyclictest0-21swapper/120:39:111
344199192,16cyclictest0-21swapper/120:49:041
3441991917,1cyclictest0-21swapper/122:00:421
3441991915,4cyclictest0-21swapper/120:55:561
3441991910,9cyclictest0-21swapper/119:10:241
3441991910,5cyclictest0-21swapper/122:34:191
344099197,7cyclictest0-21swapper/000:19:130
344099194,12cyclictest0-21swapper/023:39:060
344099192,13cyclictest0-21swapper/020:19:040
344099191,9cyclictest0-21swapper/020:59:110
3440991917,1cyclictest31690-21apache222:14:490
3440991911,6cyclictest0-21swapper/019:52:210
3440991910,4cyclictest0-21swapper/020:34:020
3440991910,3cyclictest0-21swapper/019:29:050
3440991910,3cyclictest0-21swapper/000:13:570
3440991910,1cyclictest0-21swapper/021:51:430
3441991815,1cyclictest0-21swapper/123:54:141
3441991810,3cyclictest0-21swapper/120:04:081
344199180,5cyclictest0-21swapper/100:26:181
344099188,5cyclictest5112-21ntp_states21:34:090
344099181,10cyclictest9515-21watchprog-snmpd20:49:030
3440991810,4cyclictest0-21swapper/023:49:080
3440991810,3cyclictest0-21swapper/022:54:100
512421710,0sleep00-21swapper/019:13:030
3441991716,1cyclictest29438-21ssh23:33:501
344199170,13cyclictest0-21swapper/120:09:031
344099177,6cyclictest5923-21fschecks_count00:29:050
344099171,14cyclictest0-21swapper/020:04:120
3440991710,2cyclictest0-21swapper/021:33:010
344199162,9cyclictest0-21swapper/120:34:071
344199161,9cyclictest0-21swapper/120:14:081
3441991610,5cyclictest0-21swapper/120:03:331
3441991610,2cyclictest0-21swapper/122:54:041
3441991610,2cyclictest0-21swapper/120:24:041
3441991610,0cyclictest0-21swapper/100:15:001
3440991612,4cyclictest0-21swapper/020:57:130
3440991610,6cyclictest0-21swapper/021:03:550
3440991610,2cyclictest0-21swapper/019:57:360
1629221610,0sleep10-21swapper/119:39:181
344199152,11cyclictest30432-21tr20:19:051
3440991514,0cyclictest3438-21cyclictest19:38:390
3440991510,1cyclictest0-21swapper/020:44:130
3440991410,1cyclictest0-21swapper/020:39:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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