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2025-12-26 - 04:03
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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 Fri Dec 26, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
257722750,1sleep00-21swapper/022:50:090
317882650,0sleep00-21swapper/000:19:310
2893126532,18sleep00-21swapper/019:09:140
2886526452,8sleep10-21swapper/119:08:331
29179993210,21cyclictest0-21swapper/122:41:421
29178993130,0cyclictest0-21swapper/022:03:270
29178992710,1cyclictest0-21swapper/000:09:400
2917999268,17cyclictest0-21swapper/123:46:321
29178992615,11cyclictest0-21swapper/020:42:580
29179992524,1cyclictest5602-21apache223:41:421
29179992510,9cyclictest0-21swapper/121:45:101
2917999250,22cyclictest24310-21/usr/sbin/munin00:10:191
29178992519,3cyclictest9244-21sh21:47:050
2917899250,21cyclictest32528-21ssh23:39:230
29178992422,1cyclictest3877-21ls21:40:160
29178992418,3cyclictest0-21swapper/023:52:470
29178992410,4cyclictest0-21swapper/022:44:200
29178992410,2cyclictest0-21swapper/020:53:140
2917899240,17cyclictest6490-21df22:25:090
2917899235,12cyclictest0-21swapper/000:30:140
29178992322,1cyclictest28449-21ls21:30:160
29178992322,1cyclictest0-21swapper/021:24:360
29178992311,5cyclictest0-21swapper/022:37:260
2917899230,6cyclictest20188-21kworker/u4:023:41:180
2917899230,2cyclictest0-21swapper/000:23:550
2917899230,14cyclictest0-21swapper/022:14:340
29179992218,3cyclictest0-21swapper/121:53:061
29179992218,2cyclictest29176-21cyclictest19:31:591
29179992213,6cyclictest5628-21apache222:18:201
29179992210,7cyclictest0-21swapper/123:00:101
29179992210,4cyclictest0-21swapper/123:29:401
29179992210,4cyclictest0-21swapper/121:31:241
2917899225,16cyclictest0-21swapper/019:38:360
2917899225,10cyclictest0-21swapper/023:15:080
29178992212,2cyclictest7-21ksoftirqd/023:31:570
29178992210,6cyclictest0-21swapper/021:11:580
29178992210,6cyclictest0-21swapper/020:05:090
29178992210,5cyclictest0-21swapper/022:49:330
29178992210,5cyclictest0-21swapper/022:49:330
29178992210,5cyclictest0-21swapper/000:00:260
2917999214,9cyclictest0-21swapper/119:45:081
2917999212,7cyclictest0-21swapper/123:09:251
29179992121,0cyclictest0-21swapper/100:34:461
29179992119,1cyclictest9924-21ssh22:29:591
29179992114,7cyclictest5628-21apache222:53:111
2917999211,17cyclictest0-21swapper/123:15:331
2917899215,8cyclictest0-21swapper/019:45:090
2917899215,12cyclictest0-21swapper/022:20:170
29178992111,6cyclictest30821-21sh22:15:100
29178992111,5cyclictest4574-21sh23:44:580
29178992111,10cyclictest0-21swapper/000:12:480
29178992110,6cyclictest0-21swapper/023:10:160
1929222110,1sleep10-21swapper/123:21:381
3159322010,0sleep10-21swapper/123:37:371
3155122010,0sleep10-21swapper/119:15:121
2917999204,11cyclictest0-21swapper/120:20:161
29179992019,1cyclictest5602-21apache222:01:301
29179992017,2cyclictest29176-21cyclictest23:12:541
29179992015,4cyclictest2485-21ssh00:22:451
29179992015,1cyclictest5602-21apache223:56:211
29179992011,4cyclictest26393-21timerandwakeup23:30:191
29179992010,5cyclictest0-21swapper/120:50:131
29179992010,4cyclictest100150irq/106-eth1-rx20:49:111
29179992010,4cyclictest0-21swapper/121:55:081
29179992010,4cyclictest0-21swapper/120:05:161
2917899209,10cyclictest0-21swapper/019:30:000
2917899206,13cyclictest0-21swapper/019:19:240
29178992016,3cyclictest0-21swapper/023:58:470
29178992010,6cyclictest0-21swapper/000:35:480
29178992010,3cyclictest0-21swapper/020:20:140
2917899200,18cyclictest0-21swapper/021:15:400
2875622010,0sleep10-21swapper/100:15:131
2504922010,0sleep00-21swapper/022:06:530
2396022010,0sleep00-21swapper/023:27:500
826621910,1sleep00-21swapper/021:02:290
39521910,0sleep10-21swapper/121:35:411
2917999195,7cyclictest0-21swapper/120:25:121
2917999195,6cyclictest0-21swapper/119:55:061
2917999194,8cyclictest0-21swapper/121:15:161
2917999194,4cyclictest5593-21apache200:00:071
2917999194,14cyclictest0-21swapper/120:55:161
2917999193,8cyclictest3765-21ls19:25:161
29179991918,1cyclictest593-21lldpd22:13:471
29179991915,4cyclictest5628-21apache222:59:401
29179991912,4cyclictest17271-21ssh22:39:001
29179991911,3cyclictest0-21swapper/121:25:161
29179991910,4cyclictest0-21swapper/119:40:131
2917999190,7cyclictest0-21swapper/100:06:371
2917999190,3cyclictest0-21swapper/100:25:571
29178991917,2cyclictest0-21swapper/020:33:020
29178991916,2cyclictest29176-21cyclictest23:20:360
29178991913,4cyclictest100150irq/106-eth1-rx22:30:260
29178991911,7cyclictest0-21swapper/020:00:080
29178991910,6cyclictest0-21swapper/019:29:360
29178991910,4cyclictest0-21swapper/021:25:070
29178991910,3cyclictest0-21swapper/019:10:090
29178991910,1cyclictest0-21swapper/022:56:360
1058221910,0sleep10-21swapper/123:51:211
2917999186,7cyclictest0-21swapper/120:30:091
2917999185,7cyclictest0-21swapper/122:05:171
2917999183,8cyclictest0-21swapper/120:15:201
29179991817,1cyclictest29176-21cyclictest21:20:301
29179991810,7cyclictest0-21swapper/100:36:071
29179991810,3cyclictest0-21swapper/121:10:091
2917899186,5cyclictest5414-21/usr/sbin/munin23:05:080
2917899184,9cyclictest31332-21apache_processe21:35:070
2917899184,12cyclictest0-21swapper/021:05:150
2917899181,7cyclictest0-21swapper/019:20:150
29178991816,2cyclictest0-21swapper/019:59:500
29178991815,2cyclictest5431-21runrttasks00:25:340
29178991810,4cyclictest0-21swapper/020:55:170
29178991810,3cyclictest0-21swapper/021:57:220
2321721810,0sleep00-21swapper/020:16:300
2917999174,8cyclictest0-21swapper/121:05:131
2917999174,7cyclictest0-21swapper/122:45:101
2917999174,7cyclictest0-21swapper/122:45:101
2917999173,9cyclictest0-21swapper/119:10:121
29179991715,1cyclictest1532-21grep19:20:141
29179991710,3cyclictest0-21swapper/119:37:331
2917999170,11cyclictest0-21swapper/120:40:111
2917999170,10cyclictest0-21swapper/120:00:091
2917899175,8cyclictest0-21swapper/020:25:150
2917899173,8cyclictest0-21swapper/020:10:170
2917899173,6cyclictest11062-21/usr/sbin/munin21:50:080
2917899173,5cyclictest0-21swapper/023:00:170
29178991711,3cyclictest0-21swapper/020:45:110
29178991710,5cyclictest599-21avahi-daemon19:50:050
3110421610,1sleep00-21swapper/020:38:400
2917999163,9cyclictest0-21swapper/121:40:081
29179991611,2cyclictest29176-21cyclictest21:00:171
29179991610,5cyclictest0-21swapper/120:39:331
29179991610,2cyclictest0-21swapper/119:50:081
989721510,0sleep00-21swapper/019:42:230
2917999152,10cyclictest0-21swapper/122:25:121
2917999151,10cyclictest2642-21perl22:20:101
29179991510,1cyclictest0-21swapper/120:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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