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2026-06-17 - 06:39
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Wed Jun 17, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1018126855,8sleep10-21swapper/119:04:231
1017726752,8sleep00-21swapper/019:04:200
267222630,1sleep026720-21seq19:48:550
136462630,0sleep10-21swapper/123:47:211
10773993331,1cyclictest0-21swapper/022:02:440
10773993231,0cyclictest0-21swapper/019:35:540
10773993010,5cyclictest0-21swapper/000:28:320
1077399300,29cyclictest15220-21kworker/0:022:53:090
1077399300,29cyclictest15220-21kworker/0:022:20:150
1077499280,27cyclictest26980-21ssh21:11:031
10773992814,13cyclictest26001-21kworker/0:120:57:070
1077499270,3cyclictest10792-21/usr/sbin/munin19:08:541
1077499261,5cyclictest0-21swapper/121:15:101
10774992610,7cyclictest0-21swapper/121:50:541
1077499260,25cyclictest0-21swapper/122:23:471
10773992624,1cyclictest22321-21apache_processe19:38:510
10773992616,3cyclictest13261-21sh21:35:080
10774992510,10cyclictest0-21swapper/121:31:311
10774992420,2cyclictest5567-21apache222:55:311
10774992413,9cyclictest0-21swapper/123:29:211
10773992419,1cyclictest1199-21runrttasks00:23:220
10773992418,3cyclictest5567-21apache222:12:150
10773992415,3cyclictest81ktimersoftd/021:28:400
10773992410,8cyclictest0-21swapper/023:48:560
10773992410,8cyclictest0-21swapper/022:34:010
10773992410,5cyclictest0-21swapper/023:39:490
10774992319,3cyclictest2234-21ssh00:16:311
10774992310,6cyclictest0-21swapper/122:59:491
10774992310,5cyclictest0-21swapper/123:38:421
10774992310,5cyclictest0-21swapper/123:18:481
10773992323,0cyclictest0-21swapper/000:38:060
10773992318,3cyclictest5576-21apache220:13:580
10773992317,2cyclictest0-21swapper/020:23:510
1077399231,1cyclictest0-21swapper/022:06:450
10773992310,8cyclictest0-21swapper/000:28:530
10773992310,7cyclictest0-21swapper/019:58:520
10773992310,6cyclictest0-21swapper/021:32:580
1077499224,13cyclictest0-21swapper/100:08:521
10774992217,3cyclictest5576-21apache223:07:221
10774992216,3cyclictest3443-21/usr/sbin/munin00:18:581
10774992215,1cyclictest29047-21memory23:23:571
10773992215,6cyclictest744-21snmpd00:17:330
10773992210,4cyclictest0-21swapper/023:43:570
10773992210,4cyclictest0-21swapper/023:29:210
1077399220,20cyclictest0-21swapper/022:13:420
73822110,0sleep10-21swapper/122:46:021
525822110,0sleep10-21swapper/121:24:331
1077499215,9cyclictest0-21swapper/122:48:581
1077499213,9cyclictest24350-21diskmemload23:54:011
10774992121,0cyclictest0-21swapper/121:22:281
10774992116,3cyclictest25215-21ssh22:34:311
10774992110,9cyclictest0-21swapper/122:30:511
10774992110,8cyclictest0-21swapper/100:34:041
10774992110,4cyclictest0-21swapper/123:12:551
1077399214,10cyclictest24350-21diskmemload23:05:060
10773992120,1cyclictest5567-21apache222:42:530
10773992113,3cyclictest0-21swapper/021:43:330
1077399211,1cyclictest0-21swapper/023:18:270
1077399211,1cyclictest0-21swapper/023:09:460
10773992110,2cyclictest0-21swapper/019:14:000
10773992110,1cyclictest0-21swapper/021:51:150
1077399210,19cyclictest0-21swapper/021:46:030
835122010,0sleep10-21swapper/122:13:331
834422010,0sleep00-21swapper/022:56:110
3114722010,0sleep00-21swapper/023:27:060
2165822010,0sleep00-21swapper/022:30:030
1077499208,4cyclictest636-21nscd23:34:251
1077499206,8cyclictest0-21swapper/119:33:591
1077499204,8cyclictest12238-21idleruntime-cro22:18:401
1077499203,16cyclictest16740-21ssh23:51:011
1077499202,10cyclictest0-21swapper/119:18:531
1077499201,5cyclictest0-21swapper/122:22:561
10774992011,5cyclictest100350irq/108-eth1-tx22:42:471
10774992010,7cyclictest0-21swapper/121:38:521
10774992010,3cyclictest0-21swapper/119:38:561
10774992010,2cyclictest0-21swapper/100:03:401
10773992016,4cyclictest26001-21kworker/0:120:47:060
10773992010,7cyclictest100150irq/106-eth1-rx00:03:470
10773992010,7cyclictest0-21swapper/022:44:280
1077399200,20cyclictest26001-21kworker/0:121:12:260
495321910,0sleep10-21swapper/120:17:131
1077499194,9cyclictest0-21swapper/100:29:071
1077499194,8cyclictest0-21swapper/121:33:531
1077499193,11cyclictest0-21swapper/121:53:571
1077499192,12cyclictest0-21swapper/120:53:571
10774991916,1cyclictest5576-21apache219:14:561
10774991915,4cyclictest5567-21apache219:25:321
10774991915,3cyclictest5576-21apache223:16:131
1077499191,11cyclictest0-21swapper/120:31:511
10774991910,7cyclictest0-21swapper/121:43:501
10774991910,6cyclictest0-21swapper/120:02:011
10774991910,6cyclictest0-21swapper/100:03:561
10774991910,4cyclictest0-21swapper/119:28:551
1077499190,11cyclictest28741-21ls19:53:571
1077399193,7cyclictest0-21swapper/000:08:560
10773991918,0cyclictest0-21swapper/023:02:210
10773991914,4cyclictest0-21swapper/023:57:080
10773991912,5cyclictest0-21swapper/020:28:580
10773991911,4cyclictest0-21swapper/021:16:130
10773991910,4cyclictest0-21swapper/021:23:370
10773991910,4cyclictest0-21swapper/021:03:540
1039721910,0sleep10-21swapper/100:27:591
1077499189,8cyclictest5567-21apache220:38:411
1077499183,3cyclictest24777-21/usr/sbin/munin19:43:561
10774991810,4cyclictest0-21swapper/122:02:151
1077399182,10cyclictest0-21swapper/019:43:560
1077399181,9cyclictest0-21swapper/019:23:590
10773991811,1cyclictest0-21swapper/023:59:010
10773991810,6cyclictest0-21swapper/020:03:590
10773991810,5cyclictest0-21swapper/021:55:240
10773991810,4cyclictest0-21swapper/023:18:520
10773991810,4cyclictest0-21swapper/019:53:520
10773991810,3cyclictest0-21swapper/020:49:000
10773991810,2cyclictest0-21swapper/023:33:540
1077499175,6cyclictest0-21swapper/120:43:531
1077499174,9cyclictest0-21swapper/119:48:521
1077499173,8cyclictest0-21swapper/120:58:541
10774991710,6cyclictest0-21swapper/120:03:551
10774991710,4cyclictest0-21swapper/120:38:541
10774991710,3cyclictest0-21swapper/120:08:531
1077399176,9cyclictest0-21swapper/020:58:540
1077399171,8cyclictest0-21swapper/020:18:510
10773991710,3cyclictest0-21swapper/022:23:540
10773991710,3cyclictest0-21swapper/020:33:510
1077499165,8cyclictest5532-21apache220:48:521
10774991616,0cyclictest0-21swapper/121:03:591
10774991611,2cyclictest802-21apache222:04:071
1077399165,5cyclictest2615-21/usr/sbin/munin20:09:010
10773991610,3cyclictest0-21swapper/020:38:580
10773991610,3cyclictest0-21swapper/019:28:530
10773991610,3cyclictest0-21swapper/019:08:550
10774991510,3cyclictest0-21swapper/120:23:531
10773991510,1cyclictest0-21swapper/019:23:400
10774991410,2cyclictest0-21swapper/120:18:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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