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2026-05-14 - 14:55
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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 Thu May 14, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2414727057,8sleep10-21swapper/119:06:191
2421226755,8sleep00-21swapper/019:06:590
138572370,0sleep00-21swapper/023:25:300
24580993410,5cyclictest0-21swapper/100:09:351
2458099300,15cyclictest0-21swapper/122:36:521
2439923027,1sleep10-21swapper/119:08:561
2458099280,24cyclictest0-21swapper/121:09:141
24579992815,8cyclictest17492-21apache221:40:320
24580992710,16cyclictest0-21swapper/123:24:491
24579992719,7cyclictest17472-21apache223:09:510
2457999270,4cyclictest0-21swapper/023:21:480
2203822610,7sleep10-21swapper/122:54:131
2458099253,21cyclictest0-21swapper/100:37:151
24580992521,2cyclictest0-21swapper/121:43:011
24580992517,4cyclictest17874-21munin-node21:48:261
2458099250,23cyclictest817-21mailstats19:29:151
24579992523,1cyclictest0-21swapper/022:02:000
24579992510,8cyclictest0-21swapper/000:34:090
24580992422,1cyclictest17472-21apache200:20:121
24580992412,7cyclictest100150irq/106-eth1-rx21:29:101
24580992410,6cyclictest22249-21kworker/1:122:29:041
2457999243,19cyclictest0-21swapper/021:54:560
24579992420,3cyclictest1199-21runrttasks21:37:050
24579992410,4cyclictest0-21swapper/021:44:060
24579992410,1cyclictest0-21swapper/023:57:050
24579992410,1cyclictest0-21swapper/023:57:050
2458099237,6cyclictest0-21swapper/123:46:261
2458099234,9cyclictest0-21swapper/121:19:151
24580992321,1cyclictest0-21swapper/122:20:081
24580992319,3cyclictest17472-21apache223:42:491
24580992316,6cyclictest17472-21apache219:39:011
2458099231,21cyclictest231ktimersoftd/121:14:181
24580992310,6cyclictest0-21swapper/122:25:401
24579992323,0cyclictest0-21swapper/022:18:310
2457999232,0cyclictest0-21swapper/023:59:010
24579992317,2cyclictest15786-21sh22:45:270
24579992315,5cyclictest0-21swapper/023:08:010
24579992314,5cyclictest0-21swapper/020:29:060
24579992310,7cyclictest0-21swapper/022:34:100
680522210,0sleep10-21swapper/121:50:591
488222210,1sleep00-21swapper/021:49:100
2458099228,8cyclictest22249-21kworker/1:121:54:111
24580992221,1cyclictest28999-21fschecks_count20:44:111
24580992215,5cyclictest17472-21apache223:18:351
24580992210,7cyclictest100150irq/106-eth1-rx23:36:371
24580992210,6cyclictest0-21swapper/122:39:261
2458099220,18cyclictest0-21swapper/100:16:151
2457999223,17cyclictest25317-21/usr/sbin/munin22:59:100
24579992216,1cyclictest0-21swapper/021:14:020
24579992210,6cyclictest0-21swapper/019:44:150
24580992116,1cyclictest2337-21sh23:54:061
24580992116,1cyclictest2337-21sh23:54:061
24580992112,5cyclictest100250irq/107-eth1-rx22:59:291
24580992110,5cyclictest0-21swapper/122:15:141
24580992110,4cyclictest0-21swapper/120:49:151
24580992110,4cyclictest0-21swapper/120:19:151
2457999215,14cyclictest0-21swapper/000:20:260
2457999212,10cyclictest0-21swapper/019:54:090
24579992120,1cyclictest81ktimersoftd/022:43:270
24579992119,1cyclictest81ktimersoftd/022:56:180
24579992115,4cyclictest17472-21apache221:19:180
24579992113,5cyclictest24577-21cyclictest00:11:560
24579992112,5cyclictest30620-21/usr/sbin/munin20:49:150
24579992111,9cyclictest0-21swapper/000:29:010
24579992111,6cyclictest0-21swapper/023:52:120
24579992110,8cyclictest0-21swapper/023:34:460
24579992110,6cyclictest0-21swapper/021:04:170
24579992110,2cyclictest0-21swapper/022:10:430
24579992110,1cyclictest0-21swapper/023:40:410
2457999210,3cyclictest0-21swapper/000:14:540
27892200,1sleep10-21swapper/123:10:561
2458099202,9cyclictest0-21swapper/119:45:341
2458099202,10cyclictest0-21swapper/122:49:111
24580992020,0cyclictest0-21swapper/123:29:461
24580992018,1cyclictest802-21apache219:28:511
24580992014,4cyclictest17472-21apache220:30:221
24580992010,7cyclictest0-21swapper/121:24:371
24580992010,6cyclictest0-21swapper/120:04:101
2458099200,6cyclictest24287-21hddtemp_smartct00:24:101
2457999203,16cyclictest6336-21cron22:33:560
24579992019,1cyclictest17492-21apache223:16:160
24579992015,3cyclictest23923-21ssh00:24:080
24579992015,3cyclictest0-21swapper/022:28:350
24579992010,6cyclictest16662-21seq23:29:150
24579992010,2cyclictest0-21swapper/023:44:000
1801522010,0sleep00-21swapper/022:05:320
2458099199,0cyclictest0-21swapper/100:00:451
2458099193,9cyclictest0-21swapper/122:04:071
24580991913,2cyclictest24-21ksoftirqd/123:49:101
24580991912,4cyclictest17874-21munin-node19:56:351
24580991912,3cyclictest0-21swapper/100:31:381
2458099191,11cyclictest0-21swapper/120:28:201
24580991910,8cyclictest0-21swapper/123:21:251
24580991910,4cyclictest0-21swapper/122:09:071
2457999196,6cyclictest0-21swapper/020:54:100
2457999195,7cyclictest0-21swapper/020:04:080
24579991911,6cyclictest0-21swapper/019:24:080
24579991910,5cyclictest0-21swapper/019:19:140
2457999190,4cyclictest0-21swapper/022:49:420
2457999190,10cyclictest0-21swapper/019:11:400
1136721910,0sleep00-21swapper/000:05:110
24580991816,1cyclictest27806-21vmstat19:14:171
24580991812,2cyclictest0-21swapper/121:59:341
2458099181,16cyclictest2200-21cstates20:59:091
24580991811,1cyclictest0-21swapper/121:34:151
24580991810,0cyclictest0-21swapper/123:05:491
2457999185,12cyclictest0-21swapper/021:09:180
24579991815,2cyclictest17472-21apache219:42:550
24579991814,3cyclictest636-21nscd20:39:100
24579991813,4cyclictest17492-21apache220:45:450
24579991810,4cyclictest0-21swapper/020:34:080
24579991810,3cyclictest0-21swapper/021:29:100
24579991810,3cyclictest0-21swapper/021:24:070
24579991810,3cyclictest0-21swapper/019:14:160
915221710,0sleep00-21swapper/019:52:280
2458099173,5cyclictest10759-21switchtime00:04:151
24580991711,3cyclictest0-21swapper/120:14:091
24580991710,4cyclictest0-21swapper/119:23:111
24580991710,2cyclictest0-21swapper/122:44:161
24580991710,2cyclictest0-21swapper/120:38:521
2458099170,10cyclictest3547-21cron19:38:571
24579991716,1cyclictest0-21swapper/020:19:120
24579991710,4cyclictest0-21swapper/020:59:510
24579991710,2cyclictest0-21swapper/022:20:300
2458099161,10cyclictest12211-21/usr/sbin/munin19:59:161
24580991610,2cyclictest0-21swapper/120:40:591
2457999164,6cyclictest0-21swapper/019:29:120
24579991610,3cyclictest0-21swapper/019:59:090
24580991512,2cyclictest100150irq/106-eth1-rx21:04:061
24580991512,1cyclictest0-21swapper/119:49:071
24580991510,1cyclictest0-21swapper/120:54:141
24579991510,2cyclictest0-21swapper/020:14:090
24579991510,0cyclictest0-21swapper/019:35:420
2458099142,4cyclictest0-21swapper/120:09:111
2457999143,7cyclictest21044-21seq20:24:070
24579991312,1cyclictest17472-21apache220:09:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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