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2026-09-17 - 10:18
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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 Thu Sep 17, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365727350,18sleep10-21swapper/119:05:231
356327361,7sleep00-21swapper/019:04:230
61472690,0sleep00-21swapper/023:12:090
237082650,0sleep10-21swapper/119:58:061
4080994110,30cyclictest0-21swapper/123:13:101
4080994110,30cyclictest0-21swapper/100:18:581
4080994010,30cyclictest0-21swapper/100:03:161
4080994010,29cyclictest0-21swapper/122:08:561
4080994010,29cyclictest0-21swapper/121:54:571
4080994010,29cyclictest0-21swapper/121:48:111
4080993910,28cyclictest0-21swapper/122:30:561
4080993910,28cyclictest0-21swapper/120:08:261
4080993810,3cyclictest91rcu_preempt21:25:291
4080993810,28cyclictest0-21swapper/123:53:091
4080993810,28cyclictest0-21swapper/123:46:581
4080993810,28cyclictest0-21swapper/122:05:221
4080993810,28cyclictest0-21swapper/121:46:381
4080993810,28cyclictest0-21swapper/121:37:051
4080993810,27cyclictest0-21swapper/123:10:511
4080993810,27cyclictest0-21swapper/122:01:341
4080993810,27cyclictest0-21swapper/121:38:061
4080993810,27cyclictest0-21swapper/119:44:131
4080993710,27cyclictest0-21swapper/100:08:081
4080993710,26cyclictest0-21swapper/122:35:321
4080993710,25cyclictest0-21swapper/123:04:381
4080993710,23cyclictest0-21swapper/120:27:461
4080993619,16cyclictest20644-21ssh22:45:041
4080993611,24cyclictest0-21swapper/123:23:171
4080993611,24cyclictest0-21swapper/100:28:051
4080993610,2cyclictest0-21swapper/122:19:371
4080993610,26cyclictest0-21swapper/123:59:031
4080993610,26cyclictest0-21swapper/123:38:041
4080993610,26cyclictest0-21swapper/120:34:401
4080993610,25cyclictest0-21swapper/123:48:101
4080993610,25cyclictest0-21swapper/119:28:051
4080993517,17cyclictest0-21swapper/121:30:491
4080993512,22cyclictest0-21swapper/121:12:161
4080993510,25cyclictest0-21swapper/122:54:071
4080993510,24cyclictest0-21swapper/122:58:091
4080993510,24cyclictest0-21swapper/121:16:241
4080993510,24cyclictest0-21swapper/119:08:061
4080993510,24cyclictest0-21swapper/100:24:191
4080993510,24cyclictest0-21swapper/100:14:261
4080993510,23cyclictest0-21swapper/121:06:261
4080993510,21cyclictest0-21swapper/123:18:081
4080993417,17cyclictest0-21swapper/100:36:431
4080993410,24cyclictest0-21swapper/123:28:581
4080993410,24cyclictest0-21swapper/122:13:011
4080993410,23cyclictest0-21swapper/123:36:311
4080993410,23cyclictest0-21swapper/120:43:121
4080993410,23cyclictest0-21swapper/120:18:111
4080993410,22cyclictest10929-21ls19:23:101
4080993410,20cyclictest0-21swapper/122:49:391
4080993320,12cyclictest0-21swapper/122:23:581
4080993318,15cyclictest0-21swapper/119:38:071
4080993310,23cyclictest0-21swapper/120:03:411
4080993310,22cyclictest0-21swapper/122:42:241
4080993310,21cyclictest0-21swapper/119:53:111
4080993210,22cyclictest0-21swapper/120:58:081
4080993210,22cyclictest0-21swapper/120:48:061
4080993210,22cyclictest0-21swapper/120:13:071
4080993210,21cyclictest0-21swapper/119:33:201
4079993210,20cyclictest0-21swapper/023:38:100
4080993117,14cyclictest0-21swapper/120:28:101
4080993110,17cyclictest0-21swapper/120:56:011
408099302,27cyclictest1199-21runrttasks19:13:421
408099301,28cyclictest20212-21ntpq19:48:111
408099301,28cyclictest20212-21ntpq19:48:111
4080992917,11cyclictest0-21swapper/119:21:421
4080992822,6cyclictest0-21swapper/121:19:491
4079992621,3cyclictest31455-21apache223:51:400
4079992617,8cyclictest31476-21apache222:12:140
4079992610,5cyclictest0-21swapper/000:32:570
407999260,25cyclictest0-21swapper/021:10:340
407999253,21cyclictest0-21swapper/022:58:050
407999250,2cyclictest0-21swapper/019:18:090
407999242,20cyclictest0-21swapper/000:16:450
4079992410,13cyclictest0-21swapper/019:33:280
407999240,4cyclictest0-21swapper/022:43:470
4079992316,3cyclictest31476-21apache222:39:170
4079992315,8cyclictest0-21swapper/020:55:020
4079992310,6cyclictest0-21swapper/021:33:350
962922210,0sleep00-21swapper/022:28:150
407999222,7cyclictest0-21swapper/022:17:440
4079992210,5cyclictest4077-21cyclictest21:28:110
4079992210,5cyclictest0-21swapper/021:39:150
4079992210,3cyclictest0-21swapper/000:23:050
407999220,1cyclictest0-21swapper/023:15:380
4080992110,10cyclictest0-21swapper/120:42:011
407999219,9cyclictest636-21nscd23:03:100
407999216,4cyclictest0-21swapper/022:48:050
407999215,11cyclictest20597-21/usr/sbin/munin19:48:130
407999215,11cyclictest20597-21/usr/sbin/munin19:48:130
4079992119,1cyclictest17646-21diskmemload00:21:280
4079992116,3cyclictest0-21swapper/021:47:500
4079992110,5cyclictest0-21swapper/023:43:090
4079992110,4cyclictest0-21swapper/021:27:260
4079992110,2cyclictest0-21swapper/023:23:210
407999210,2cyclictest0-21swapper/023:18:190
2275422110,0sleep00-21swapper/023:35:460
4079992014,5cyclictest31476-21apache221:06:230
4079992011,5cyclictest10815-21ls20:48:090
4079992010,8cyclictest0-21swapper/023:52:560
4079992010,3cyclictest0-21swapper/000:12:300
4079992010,1cyclictest0-21swapper/021:51:420
4079992010,0cyclictest0-21swapper/022:06:070
407999195,6cyclictest0-21swapper/020:08:060
407999192,11cyclictest0-21swapper/019:43:130
4079991918,1cyclictest31455-21apache221:17:260
4079991913,4cyclictest31455-21apache221:20:260
4079991913,3cyclictest100450irq/109-eth1-tx22:36:210
4079991911,2cyclictest0-21swapper/022:23:470
4079991910,4cyclictest0-21swapper/022:20:380
4079991910,1cyclictest0-21swapper/000:07:220
407999190,17cyclictest0-21swapper/019:10:530
2138721910,0sleep00-21swapper/021:58:210
1805621910,0sleep00-21swapper/021:53:340
767321810,0sleep00-21swapper/000:01:240
407999183,9cyclictest0-21swapper/000:28:100
407999181,4cyclictest0-21swapper/019:32:530
4079991812,3cyclictest81ktimersoftd/020:23:050
4079991811,4cyclictest31455-21apache219:39:040
4079991810,6cyclictest0-21swapper/020:33:030
4079991810,5cyclictest0-21swapper/020:18:040
4079991810,4cyclictest0-21swapper/019:13:050
4079991810,3cyclictest0-21swapper/020:58:120
4079991810,3cyclictest0-21swapper/020:15:220
407999173,7cyclictest0-21swapper/020:43:060
4079991716,1cyclictest24479-21snmpd23:30:420
4079991710,3cyclictest0-21swapper/019:53:460
4079991710,0cyclictest0-21swapper/022:53:050
407999170,9cyclictest25452-21fschecks_count20:03:050
2475321710,0sleep00-21swapper/019:59:550
407999162,6cyclictest0-21swapper/020:28:090
4079991613,3cyclictest0-21swapper/020:41:260
4079991512,0cyclictest9861-21apache_processe19:23:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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