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2026-05-03 - 02:22
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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 May 02, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204522050,4sleep11199-21runrttasks07:04:151
215292670,1sleep10-21swapper/109:13:201
330326552,8sleep00-21swapper/007:05:130
3851993029,1cyclictest0-21swapper/112:27:241
385099301,4cyclictest21838-21kworker/0:111:29:210
3850992927,1cyclictest0-21swapper/012:14:400
3851992810,13cyclictest0-21swapper/107:29:021
385099280,0cyclictest16257-21/usr/sbin/munin09:04:160
385199279,9cyclictest13717-21apache211:43:161
3851992710,4cyclictest0-21swapper/112:17:581
3851992710,15cyclictest0-21swapper/107:59:531
3851992610,5cyclictest0-21swapper/107:44:221
3851992610,1cyclictest0-21swapper/112:09:031
385199260,1cyclictest0-21swapper/112:22:211
385099254,8cyclictest20432-21/usr/sbin/munin10:34:170
3851992423,1cyclictest13717-21apache211:32:351
3851992422,1cyclictest26765-21munin-node11:26:381
3851992415,5cyclictest593-21lldpd11:51:501
3851992410,1cyclictest0-21swapper/111:11:131
385199240,2cyclictest0-21swapper/110:12:301
3850992418,5cyclictest13743-21apache207:36:590
3850992410,10cyclictest0-21swapper/011:58:200
3851992310,6cyclictest100150irq/106-eth1-rx12:04:131
3851992310,5cyclictest0-21swapper/110:54:121
3850992321,1cyclictest636-21nscd11:12:330
3850992319,3cyclictest13717-21apache209:41:150
3850992317,4cyclictest13743-21apache211:05:300
3850992310,8cyclictest0-21swapper/010:47:310
3850992310,6cyclictest0-21swapper/010:11:140
385199228,6cyclictest21487-21apache_accesses07:54:131
3851992221,1cyclictest13743-21apache209:36:001
3851992221,1cyclictest13743-21apache209:36:001
3851992219,3cyclictest13743-21apache210:45:221
3851992218,3cyclictest13743-21apache212:32:541
3851992215,4cyclictest231ktimersoftd/111:44:201
385099227,8cyclictest0-21swapper/011:59:140
3850992220,1cyclictest13743-21apache209:38:400
3850992220,1cyclictest13743-21apache209:38:400
3850992218,3cyclictest2385-21perf08:29:020
3850992215,5cyclictest636-21nscd11:00:070
3850992215,4cyclictest13743-21apache210:39:440
3850992210,9cyclictest0-21swapper/008:34:300
3850992210,7cyclictest0-21swapper/010:19:270
3850992210,6cyclictest0-21swapper/009:49:220
3850992210,3cyclictest100250irq/107-eth1-rx09:09:100
3850992210,10cyclictest0-21swapper/012:11:510
385099220,15cyclictest0-21swapper/010:55:240
1705022210,0sleep10-21swapper/109:48:341
385199214,16cyclictest0-21swapper/109:17:251
3851992111,5cyclictest100250irq/107-eth1-rx11:14:131
385199210,2cyclictest0-21swapper/109:27:021
385099217,6cyclictest17774-21diskmemload11:19:200
385099215,8cyclictest0-21swapper/008:44:130
385099212,12cyclictest0-21swapper/011:44:140
3850992121,0cyclictest0-21swapper/009:29:240
3850992110,9cyclictest0-21swapper/009:24:300
3850992110,6cyclictest0-21swapper/012:27:210
3850992110,6cyclictest0-21swapper/010:03:240
3850992110,5cyclictest0-21swapper/009:44:080
385099210,11cyclictest0-21swapper/010:28:350
2572522110,0sleep00-21swapper/009:18:260
3851992019,1cyclictest13743-21apache209:39:181
3851992015,4cyclictest13546-21date07:34:021
385199201,3cyclictest0-21swapper/109:33:141
3851992010,7cyclictest0-21swapper/111:54:161
3851992010,6cyclictest0-21swapper/110:00:261
3851992010,5cyclictest0-21swapper/110:39:121
3851992010,4cyclictest0-21swapper/108:49:211
3851992010,4cyclictest0-21swapper/107:09:151
385199200,16cyclictest0-21swapper/108:34:211
385199200,12cyclictest0-21swapper/111:59:151
385199200,11cyclictest0-21swapper/107:49:141
3850992016,2cyclictest13717-21apache211:18:210
3850992015,2cyclictest0-21swapper/010:32:490
3850992010,7cyclictest0-21swapper/012:31:550
3850992010,5cyclictest0-21swapper/008:59:160
3850992010,4cyclictest0-21swapper/012:22:060
3850992010,3cyclictest0-21swapper/007:12:520
155632208,1sleep10-21swapper/109:01:031
385199192,9cyclictest0-21swapper/112:34:181
3851991912,2cyclictest0-21swapper/109:52:551
3851991911,5cyclictest5244-21apache207:14:221
3851991910,4cyclictest0-21swapper/111:04:181
3851991910,4cyclictest0-21swapper/108:24:141
3851991910,4cyclictest0-21swapper/107:39:151
385099195,9cyclictest0-21swapper/007:59:150
385099195,10cyclictest0-21swapper/012:04:180
385099193,7cyclictest13732-21apache207:49:130
3850991918,1cyclictest13717-21apache212:34:410
3850991913,4cyclictest0-21swapper/011:35:390
3850991910,5cyclictest0-21swapper/010:04:130
3850991910,4cyclictest0-21swapper/007:54:130
3850991910,3cyclictest0-21swapper/011:49:140
3850991910,2cyclictest0-21swapper/009:19:190
3850991910,0cyclictest0-21swapper/007:27:370
385099190,15cyclictest0-21swapper/010:53:340
385099190,10cyclictest0-21swapper/008:49:180
2449821910,0sleep10-21swapper/109:58:121
2409021910,1sleep10-21swapper/111:20:091
385199185,9cyclictest0-21swapper/107:34:021
385199184,6cyclictest0-21swapper/109:04:201
385199184,11cyclictest0-21swapper/108:09:141
385199181,7cyclictest0-21swapper/110:25:511
3851991817,0cyclictest0-21swapper/111:01:551
3851991810,3cyclictest0-21swapper/110:34:501
3850991818,0cyclictest13717-21apache207:46:240
3850991813,3cyclictest7-21ksoftirqd/011:39:160
3850991811,4cyclictest0-21swapper/008:29:150
3850991810,4cyclictest0-21swapper/011:24:140
3850991810,4cyclictest0-21swapper/010:14:160
385099180,12cyclictest13956-21munin-run08:59:020
331021810,1sleep10-21swapper/111:35:111
385199175,8cyclictest0-21swapper/108:44:141
385199171,9cyclictest0-21swapper/108:14:191
3851991715,1cyclictest0-21swapper/110:14:501
3851991710,3cyclictest0-21swapper/108:54:131
3851991710,3cyclictest0-21swapper/108:29:191
3851991710,2cyclictest100450irq/109-eth1-tx09:21:011
3851991710,2cyclictest0-21swapper/110:05:301
385199170,8cyclictest0-21swapper/107:19:151
385099173,8cyclictest0-21swapper/007:29:140
385099172,8cyclictest0-21swapper/008:39:140
3850991717,0cyclictest0-21swapper/007:40:540
3850991711,3cyclictest0-21swapper/008:14:130
3850991710,4cyclictest0-21swapper/008:04:250
3850991710,3cyclictest0-21swapper/009:54:140
3851991610,1cyclictest0-21swapper/110:49:151
3850991610,3cyclictest0-21swapper/007:14:190
3850991610,1cyclictest0-21swapper/007:22:210
385099160,6cyclictest0-21swapper/008:09:230
385199152,6cyclictest25562-21/usr/sbin/munin08:04:181
3851991515,0cyclictest0-21swapper/108:39:121
3851991510,3cyclictest0-21swapper/108:19:141
3851991510,1cyclictest0-21swapper/110:31:561
3851991510,0cyclictest0-21swapper/110:21:141
385099151,6cyclictest32266-21ls08:19:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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