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2026-08-22 - 09:21
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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 Sat Aug 22, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2286027251,8sleep00-21swapper/019:04:480
2142026754,8sleep10-21swapper/119:03:101
27072640,1sleep00-21swapper/019:38:160
23357993814,23cyclictest0-21swapper/119:31:441
23356993810,3cyclictest0-21swapper/021:49:000
23356993519,16cyclictest0-21swapper/021:15:420
23356993410,3cyclictest0-21swapper/021:39:250
23356993210,1cyclictest0-21swapper/021:22:440
23357993118,13cyclictest0-21swapper/121:40:551
23356993119,12cyclictest0-21swapper/023:07:220
23356992922,6cyclictest636-21nscd22:00:500
23356992910,6cyclictest0-21swapper/023:37:540
23357992827,0cyclictest19476-21apache223:40:531
23357992810,7cyclictest0-21swapper/121:48:111
23356992818,10cyclictest0-21swapper/020:32:540
23356992810,1cyclictest0-21swapper/023:28:430
23356992810,0cyclictest0-21swapper/023:18:380
2335699280,2cyclictest0-21swapper/021:29:190
2335699280,27cyclictest0-21swapper/022:45:020
2335799273,23cyclictest0-21swapper/122:48:201
2335699273,9cyclictest0-21swapper/000:20:480
23356992710,9cyclictest0-21swapper/020:08:150
23356992710,6cyclictest0-21swapper/000:05:180
23356992710,2cyclictest0-21swapper/023:26:300
23356992710,1cyclictest0-21swapper/023:15:110
23356992710,12cyclictest0-21swapper/000:31:480
247282260,0sleep10-21swapper/122:22:491
2335799261,2cyclictest5334-21irqstats21:08:201
2335699261,6cyclictest0-21swapper/023:44:010
23356992610,2cyclictest0-21swapper/021:53:290
23357992524,1cyclictest19502-21apache221:56:101
23357992516,3cyclictest0-21swapper/120:03:281
2335799251,23cyclictest0-21swapper/121:18:471
23357992511,6cyclictest0-21swapper/100:02:511
2335699252,22cyclictest0-21swapper/022:10:310
2335699252,1cyclictest0-21swapper/023:08:370
23356992519,5cyclictest19502-21apache223:02:360
23356992510,15cyclictest0-21swapper/021:25:140
2335699250,20cyclictest4544-21diskmemload23:53:370
23357992420,2cyclictest19502-21apache221:59:391
2335799241,13cyclictest0-21swapper/120:33:251
23357992410,13cyclictest0-21swapper/121:17:331
2335799240,21cyclictest0-21swapper/121:47:231
23356992423,1cyclictest0-21swapper/022:36:420
23356992419,4cyclictest19476-21apache221:11:370
23356992417,4cyclictest0-21swapper/019:12:440
23356992410,6cyclictest0-21swapper/020:34:360
23356992410,14cyclictest0-21swapper/022:03:220
23356992410,13cyclictest0-21swapper/021:03:520
2335799233,9cyclictest17875-21basename00:33:051
2335799232,17cyclictest0-21swapper/122:54:011
23357992318,4cyclictest0-21swapper/100:05:041
23357992310,9cyclictest0-21swapper/123:18:381
23357992310,8cyclictest0-21swapper/120:53:161
23357992310,5cyclictest0-21swapper/123:48:131
23357992310,5cyclictest0-21swapper/100:22:001
23357992310,0cyclictest0-21swapper/123:09:401
2335699234,6cyclictest0-21swapper/023:38:140
2335699233,7cyclictest0-21swapper/000:13:150
2335699233,19cyclictest16008-21kworker/0:120:18:180
23356992320,1cyclictest0-21swapper/000:37:200
23356992310,11cyclictest0-21swapper/020:01:350
2740322210,0sleep10-21swapper/122:25:401
23357992215,6cyclictest9718-21ssh22:47:471
23357992215,4cyclictest636-21nscd22:58:271
2335699223,4cyclictest0-21swapper/022:19:560
23356992220,1cyclictest0-21swapper/021:44:490
2335699221,1cyclictest0-21swapper/000:02:200
2335699220,6cyclictest26021-21/usr/sbin/munin19:13:220
2335799214,11cyclictest0-21swapper/123:23:241
23357992117,3cyclictest802-21apache220:38:351
23357992116,4cyclictest4799-21munin-node19:11:371
23357992112,5cyclictest4544-21diskmemload22:36:531
23357992111,6cyclictest0-21swapper/122:40:521
23357992111,5cyclictest0-21swapper/122:13:261
23357992110,1cyclictest0-21swapper/121:31:211
23357992110,11cyclictest0-21swapper/100:27:571
23356992121,0cyclictest0-21swapper/022:13:560
23356992120,1cyclictest0-21swapper/022:32:190
23356992117,2cyclictest705-21ntpd20:44:530
2335699211,2cyclictest0-21swapper/000:27:520
23356992111,5cyclictest0-21swapper/020:53:060
2335699210,1cyclictest0-21swapper/022:55:240
2335799205,9cyclictest11032-21apache_accesses22:03:171
2335799204,7cyclictest0-21swapper/100:33:261
2335799204,6cyclictest27226-21/usr/sbin/munin19:18:171
2335799203,9cyclictest17824-21cron22:13:051
23357992015,3cyclictest19476-21apache221:25:371
23357992013,3cyclictest1709-21timerwakeupswit19:33:241
2335799201,14cyclictest0-21swapper/123:36:011
23357992010,3cyclictest0-21swapper/100:17:081
2335799200,10cyclictest0-21swapper/119:38:241
2335699207,9cyclictest0-21swapper/019:53:220
2335699202,4cyclictest0-21swapper/022:23:350
23356992018,1cyclictest636-21nscd22:48:180
23356992016,4cyclictest0-21swapper/020:17:220
2335699201,5cyclictest0-21swapper/022:41:050
23356992015,2cyclictest802-21apache219:51:190
23356992010,1cyclictest0-21swapper/000:12:400
1741122010,0sleep10-21swapper/120:15:261
2335799193,4cyclictest0-21swapper/120:23:201
23357991910,7cyclictest0-21swapper/100:08:171
23357991910,5cyclictest0-21swapper/119:13:191
23357991910,4cyclictest0-21swapper/120:08:171
2335699194,8cyclictest0-21swapper/020:23:150
23356991911,4cyclictest0-21swapper/019:26:000
2335699190,5cyclictest0-21swapper/021:35:160
2335799184,9cyclictest29761-21ls19:23:181
2335799184,6cyclictest20695-21apache_accesses23:03:171
23357991818,0cyclictest0-21swapper/123:54:051
23357991811,2cyclictest0-21swapper/121:36:331
2335799181,10cyclictest0-21swapper/123:13:201
23357991810,3cyclictest0-21swapper/120:18:251
23357991810,3cyclictest0-21swapper/119:43:361
2335799180,4cyclictest29257-21cron20:48:061
23356991810,5cyclictest0-21swapper/019:43:160
23356991810,5cyclictest0-21swapper/019:28:210
23356991810,2cyclictest0-21swapper/023:48:400
23356991810,2cyclictest0-21swapper/020:53:190
2335799175,11cyclictest0-21swapper/121:03:161
2335799174,6cyclictest0-21swapper/119:58:191
2335799173,5cyclictest8475-21/usr/sbin/munin19:53:171
2335799173,5cyclictest29545-21cstates20:48:181
23357991714,2cyclictest100150irq/106-eth1-rx23:43:221
23357991710,6cyclictest0-21swapper/119:48:221
23357991710,5cyclictest100150irq/106-eth1-rx22:32:531
23357991710,4cyclictest0-21swapper/120:58:231
23357991710,2cyclictest0-21swapper/123:31:021
2335699172,9cyclictest0-21swapper/020:03:220
23356991610,4cyclictest0-21swapper/019:18:170
23356991610,3cyclictest0-21swapper/020:38:170
2335799153,8cyclictest0-21swapper/120:28:171
23356991510,5cyclictest0-21swapper/021:02:080
23356991310,0cyclictest0-21swapper/019:33:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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