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2026-05-19 - 21:00
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Tue May 19, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1741727052,8sleep10-21swapper/107:07:391
1722026754,8sleep00-21swapper/007:05:370
17720993737,0cyclictest0-21swapper/112:20:061
17720993510,24cyclictest0-21swapper/109:20:391
17720993130,0cyclictest0-21swapper/112:14:421
17720993023,4cyclictest27529-21apache210:39:251
17719993030,0cyclictest0-21swapper/009:13:590
1772099280,25cyclictest21680-21mailstats10:19:131
1771999280,6cyclictest0-21swapper/012:32:030
17720992727,0cyclictest0-21swapper/111:53:521
17720992727,0cyclictest0-21swapper/108:26:071
17719992727,0cyclictest0-21swapper/011:15:220
17719992718,4cyclictest18735-21munin-run09:33:550
1772099262,20cyclictest0-21swapper/109:28:011
17720992621,2cyclictest0-21swapper/111:41:341
17720992611,10cyclictest31587-21diskmemload11:00:381
1771999260,1cyclictest0-21swapper/011:09:280
17719992524,0cyclictest0-21swapper/010:40:470
17720992419,2cyclictest231ktimersoftd/108:19:061
17720992410,5cyclictest0-21swapper/111:24:051
17720992410,13cyclictest0-21swapper/108:30:231
17719992422,1cyclictest0-21swapper/009:43:560
17719992417,6cyclictest30385-21ssh10:31:010
17719992410,14cyclictest0-21swapper/007:45:300
1771999240,1cyclictest0-21swapper/011:08:350
1772099235,9cyclictest0-21swapper/109:39:081
17720992312,4cyclictest0-21swapper/109:29:271
17720992310,4cyclictest0-21swapper/107:59:111
17719992320,2cyclictest26443-21ssh11:52:180
17719992318,4cyclictest27529-21apache212:04:110
17719992313,6cyclictest0-21swapper/011:39:060
17719992310,7cyclictest0-21swapper/010:05:330
17719992310,3cyclictest0-21swapper/010:46:180
1772099225,10cyclictest0-21swapper/108:09:061
17720992220,1cyclictest27489-21kworker/1:010:14:071
17720992211,6cyclictest0-21swapper/111:59:401
17720992210,7cyclictest0-21swapper/108:59:071
17720992210,6cyclictest0-21swapper/110:51:301
17720992210,4cyclictest0-21swapper/112:09:061
17720992210,4cyclictest0-21swapper/110:08:571
1772099220,16cyclictest0-21swapper/112:08:281
17719992222,0cyclictest0-21swapper/008:01:070
17719992210,6cyclictest0-21swapper/009:34:130
17719992210,5cyclictest0-21swapper/012:38:380
17719992210,5cyclictest0-21swapper/010:01:260
1771999220,9cyclictest0-21swapper/012:14:120
1772099211,19cyclictest0-21swapper/109:59:401
17720992110,5cyclictest0-21swapper/108:44:051
17720992110,1cyclictest0-21swapper/111:10:241
1772099210,4cyclictest0-21swapper/109:55:581
1772099210,2cyclictest0-21swapper/112:33:091
17719992117,3cyclictest2917-1kworker/0:1H08:13:350
17719992115,4cyclictest27555-21apache210:17:040
17719992115,2cyclictest0-21swapper/011:26:380
17719992110,5cyclictest0-21swapper/009:39:050
17719992110,5cyclictest0-21swapper/007:14:080
1771999210,11cyclictest0-21swapper/011:59:060
2779422010,1sleep10-21swapper/112:36:501
1772099206,7cyclictest17670-21/usr/sbin/munin12:24:051
17720992020,0cyclictest0-21swapper/109:16:411
17720992017,2cyclictest30281-21kworker/u4:211:17:381
17720992014,4cyclictest231ktimersoftd/109:47:211
17720992012,5cyclictest0-21swapper/107:39:091
17720992010,5cyclictest0-21swapper/109:09:051
17720992010,5cyclictest0-21swapper/107:09:121
17720992010,4cyclictest0-21swapper/110:56:191
17720992010,1cyclictest0-21swapper/109:37:341
1771999203,9cyclictest0-21swapper/011:20:030
17719992019,1cyclictest0-21swapper/011:47:160
17719992014,2cyclictest13840-21/usr/sbin/munin12:19:080
17719992010,2cyclictest0-21swapper/008:34:070
1771999200,9cyclictest9373-21ntp_states11:29:110
1771999200,15cyclictest0-21swapper/009:58:150
992721910,0sleep10-21swapper/110:47:111
3032721910,0sleep10-21swapper/109:48:581
2607321910,0sleep10-21swapper/110:25:131
2178321910,0sleep00-21swapper/011:03:280
1772099193,10cyclictest0-21swapper/110:04:101
1772099193,10cyclictest0-21swapper/108:14:101
17720991914,3cyclictest25087-21ls08:49:141
1772099191,11cyclictest0-21swapper/111:23:531
17720991910,7cyclictest0-21swapper/111:35:331
17720991910,5cyclictest0-21swapper/108:04:041
17720991910,5cyclictest0-21swapper/107:17:291
17720991910,4cyclictest0-21swapper/107:34:131
17720991910,3cyclictest0-21swapper/111:28:561
1771999198,6cyclictest0-21swapper/008:59:070
1771999195,4cyclictest0-21swapper/009:19:100
1771999194,8cyclictest0-21swapper/012:24:090
1771999194,5cyclictest744-21snmpd10:49:060
1771999192,5cyclictest6621-21diskstats12:09:070
1771999192,16cyclictest0-21swapper/008:19:140
17719991910,7cyclictest0-21swapper/010:21:160
17719991910,5cyclictest0-21swapper/007:34:070
17719991910,4cyclictest0-21swapper/010:34:020
17719991910,3cyclictest0-21swapper/008:29:050
17719991910,3cyclictest0-21swapper/008:04:040
17719991910,1cyclictest0-21swapper/011:38:060
1390521910,0sleep00-21swapper/009:27:130
17720991817,1cyclictest28160-21apache207:19:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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