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2026-03-13 - 23:00
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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 Fri Mar 13, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80122700,0sleep00-21swapper/012:21:500
1487027057,8sleep10-21swapper/107:07:511
1470726855,8sleep00-21swapper/007:06:090
282712670,0sleep028276-21sed07:39:440
280042630,1sleep10-21swapper/109:49:451
72112580,2sleep01520199cyclictest08:09:420
15202993110,13cyclictest0-21swapper/108:49:441
1520199302,25cyclictest0-21swapper/010:06:270
1520299295,7cyclictest24085-21ssh10:29:421
15201992928,1cyclictest0-21swapper/008:58:550
15201992711,12cyclictest0-21swapper/011:21:440
15202992624,1cyclictest0-21swapper/111:57:341
15201992626,0cyclictest0-21swapper/009:28:300
1520199261,1cyclictest19269-21/usr/sbin/munin09:39:360
1520299255,19cyclictest0-21swapper/110:36:181
15202992424,0cyclictest0-21swapper/110:15:331
15202992421,2cyclictest705-21ntpd08:25:441
15201992416,3cyclictest0-21swapper/011:00:360
15201992410,5cyclictest0-21swapper/007:34:430
1520199240,1cyclictest3161-21smart_sda12:14:430
15202992316,4cyclictest25088-21apache210:02:451
15202992311,5cyclictest0-21swapper/109:56:461
15202992310,8cyclictest0-21swapper/109:04:401
15202992310,5cyclictest0-21swapper/109:29:451
15202992310,3cyclictest0-21swapper/110:23:401
15201992322,1cyclictest25088-21apache212:30:530
15201992320,1cyclictest13997-21diskmemload10:15:410
15201992310,6cyclictest0-21swapper/012:09:250
15201992310,5cyclictest0-21swapper/010:44:360
15201992310,0cyclictest0-21swapper/010:12:300
1520299224,6cyclictest23743-21/usr/sbin/munin09:44:441
15202992210,9cyclictest0-21swapper/112:29:421
1520199223,9cyclictest0-21swapper/007:24:370
1520199221,1cyclictest30618-21cron12:09:240
15201992210,3cyclictest0-21swapper/008:59:430
993922110,0sleep10-21swapper/109:25:581
2017122110,0sleep00-21swapper/007:19:420
15202992119,1cyclictest636-21nscd10:46:531
15202992119,1cyclictest25088-21apache212:36:281
15202992117,3cyclictest25088-21apache209:37:531
15202992114,4cyclictest231ktimersoftd/107:44:361
15202992110,7cyclictest0-21swapper/107:49:341
15202992110,4cyclictest0-21swapper/112:19:341
15202992110,2cyclictest0-21swapper/111:39:201
15202992110,2cyclictest0-21swapper/109:15:311
1520199215,13cyclictest0-21swapper/011:24:350
15201992119,1cyclictest13285-21if_eth211:44:410
15201992111,4cyclictest0-21swapper/008:07:340
15201992110,9cyclictest0-21swapper/009:57:280
15201992110,7cyclictest0-21swapper/008:29:340
15201992110,6cyclictest0-21swapper/007:44:360
1520199210,14cyclictest0-21swapper/008:39:340
1520299205,14cyclictest0-21swapper/111:39:441
1520299204,12cyclictest0-21swapper/107:29:341
1520299203,12cyclictest0-21swapper/108:34:431
1520299203,10cyclictest0-21swapper/111:04:371
15202992019,1cyclictest25088-21apache210:53:561
15202992013,5cyclictest100150irq/106-eth1-rx10:24:411
15202992010,9cyclictest0-21swapper/112:15:511
15202992010,6cyclictest0-21swapper/109:09:411
15202992010,5cyclictest0-21swapper/111:11:521
15202992010,2cyclictest0-21swapper/110:09:351
15202992010,1cyclictest0-21swapper/110:05:371
1520199209,0cyclictest0-21swapper/011:55:540
1520199206,10cyclictest649-21nscd10:50:350
1520199203,13cyclictest0-21swapper/010:38:180
1520199202,9cyclictest5872-21grep09:19:440
15201992020,0cyclictest802-21apache208:15:490
15201992019,1cyclictest25088-21apache210:00:430
1520199201,3cyclictest18539-21sh12:36:200
15201992010,3cyclictest0-21swapper/009:04:350
15201992010,3cyclictest0-21swapper/008:20:390
15201992010,3cyclictest0-21swapper/007:54:460
1520299194,9cyclictest0-21swapper/110:59:331
1520299194,7cyclictest0-21swapper/112:03:101
1520299194,11cyclictest0-21swapper/107:34:351
1520299191,9cyclictest0-21swapper/111:21:531
15202991916,1cyclictest3145-21ntp_states07:59:401
15202991910,5cyclictest0-21swapper/109:40:381
15202991910,5cyclictest0-21swapper/109:23:031
15202991910,5cyclictest0-21swapper/108:04:361
15202991910,0cyclictest0-21swapper/111:19:211
1520199197,5cyclictest0-21swapper/008:44:420
1520199192,9cyclictest0-21swapper/007:49:340
15201991919,0cyclictest25088-21apache211:04:390
15201991919,0cyclictest0-21swapper/010:57:060
15201991915,4cyclictest0-21swapper/010:26:470
15201991914,2cyclictest0-21swapper/008:24:360
1520199191,3cyclictest0-21swapper/011:15:250
1520199191,12cyclictest0-21swapper/011:34:420
15201991910,5cyclictest0-21swapper/010:21:400
15201991910,4cyclictest0-21swapper/011:39:460
15201991910,3cyclictest0-21swapper/010:29:360
15201991910,2cyclictest0-21swapper/009:44:420
1520299186,6cyclictest29128-21diskmemload12:09:261
1520299185,9cyclictest0-21swapper/107:09:341
1520299184,8cyclictest0-21swapper/107:54:351
1520299183,8cyclictest29128-21diskmemload11:54:241
1520299183,7cyclictest29128-21diskmemload10:57:311
1520299182,8cyclictest0-21swapper/108:44:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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