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2025-12-22 - 08:22
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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 Mon Dec 22, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3274126755,8sleep00-21swapper/019:05:050
274982660,1sleep1221rcuc/121:39:571
175326552,9sleep10-21swapper/119:06:141
184882450,0sleep10-21swapper/119:50:151
2293992910,13cyclictest0-21swapper/119:48:191
2292992929,0cyclictest0-21swapper/019:49:260
2293992420,3cyclictest0-21swapper/120:18:541
2293992310,6cyclictest0-21swapper/121:30:041
2292992322,1cyclictest0-21swapper/021:38:540
2292992322,0cyclictest7-21ksoftirqd/020:30:130
2292992315,5cyclictest7787-21apache223:08:100
2292992310,4cyclictest0-21swapper/023:44:570
2293992221,1cyclictest7787-21apache200:12:201
2293992215,3cyclictest0-21swapper/120:25:181
2293992210,6cyclictest0-21swapper/123:00:131
2293992210,6cyclictest0-21swapper/122:25:151
2293992210,5cyclictest0-21swapper/122:53:411
229299221,3cyclictest14709-21apache_accesses23:55:080
2292992210,9cyclictest100150irq/106-eth1-rx21:27:410
2292992210,6cyclictest0-21swapper/020:17:310
2292992210,5cyclictest0-21swapper/021:50:170
2292992210,3cyclictest0-21swapper/019:19:580
2138422210,1sleep00-21swapper/021:22:040
229399214,12cyclictest0-21swapper/122:45:091
229399213,13cyclictest0-21swapper/121:25:121
2293992114,5cyclictest744-21snmpd23:26:321
2293992113,3cyclictest0-21swapper/120:20:091
2293992110,8cyclictest0-21swapper/121:50:091
2293992110,7cyclictest0-21swapper/121:45:491
2293992110,4cyclictest0-21swapper/100:06:581
229399210,6cyclictest16636-21cut22:35:111
2292992116,3cyclictest802-21apache220:42:120
229399205,11cyclictest24145-21ls00:19:571
229399204,8cyclictest620-21/usr/sbin/munin20:30:071
229399204,8cyclictest0-21swapper/122:00:181
2293992019,1cyclictest770-21irqbalance19:59:181
2293992010,8cyclictest0-21swapper/121:40:111
2293992010,5cyclictest1297-21hddtemp_smartct21:55:101
2293992010,4cyclictest0-21swapper/100:35:201
229299206,8cyclictest0-21swapper/000:25:120
229299204,9cyclictest0-21swapper/023:10:180
229299204,12cyclictest0-21swapper/019:30:100
2292992016,3cyclictest7760-21apache200:01:450
2292992015,4cyclictest7760-21apache222:15:220
2292992013,5cyclictest408-21grep23:15:170
2292992010,5cyclictest0-21swapper/021:40:140
2292992010,4cyclictest0-21swapper/023:51:180
2292992010,4cyclictest0-21swapper/021:30:150
2292992010,10cyclictest0-21swapper/019:10:520
229399199,6cyclictest25393-21apache_accesses20:10:131
229399197,8cyclictest9298-21fschecks_time23:40:121
229399192,11cyclictest0-21swapper/123:45:131
229399192,10cyclictest0-21swapper/100:00:141
229399191,16cyclictest21095-21ls21:20:161
229399191,10cyclictest0-21swapper/120:55:111
2293991910,6cyclictest0-21swapper/123:15:141
2293991910,6cyclictest0-21swapper/120:45:111
2293991910,4cyclictest0-21swapper/119:32:041
2293991910,2cyclictest0-21swapper/122:30:111
2292991913,1cyclictest100150irq/106-eth1-rx23:25:180
2292991911,3cyclictest0-21swapper/022:05:160
2292991910,5cyclictest0-21swapper/022:10:130
2292991910,5cyclictest0-21swapper/019:25:100
2292991910,3cyclictest0-21swapper/020:55:180
229399185,8cyclictest0-21swapper/120:35:101
229399185,7cyclictest0-21swapper/123:05:131
229399184,7cyclictest0-21swapper/119:35:091
229399183,8cyclictest0-21swapper/100:25:171
229399182,9cyclictest0-21swapper/123:50:111
2293991812,1cyclictest0-21swapper/122:40:411
2293991810,7cyclictest5757-21ls23:30:131
2293991810,6cyclictest0-21swapper/123:55:081
2293991810,6cyclictest0-21swapper/100:30:121
2293991810,4cyclictest0-21swapper/120:50:191
2293991810,2cyclictest0-21swapper/123:10:091
229399180,8cyclictest7983-21awk19:24:581
229299184,6cyclictest0-21swapper/022:45:100
229299184,6cyclictest0-21swapper/022:00:160
2292991811,4cyclictest7787-21apache200:10:000
2292991810,8cyclictest0-21swapper/021:56:550
2292991810,4cyclictest0-21swapper/000:30:100
2292991810,3cyclictest24675-21kworker/0:123:45:120
2292991810,3cyclictest0-21swapper/022:55:110
229299180,1cyclictest0-21swapper/020:11:420
229399177,7cyclictest0-21swapper/121:05:101
229399172,5cyclictest7590-21latency23:35:161
229399172,10cyclictest0-21swapper/119:10:091
2293991710,5cyclictest100150irq/106-eth1-rx21:15:141
2293991710,5cyclictest0-21swapper/119:16:291
2293991710,4cyclictest0-21swapper/123:20:081
2293991710,4cyclictest0-21swapper/120:00:231
2293991710,3cyclictest0-21swapper/121:10:111
229399170,11cyclictest0-21swapper/122:10:161
229299175,3cyclictest91rcu_preempt20:05:120
229299174,7cyclictest0-21swapper/021:15:120
229299174,7cyclictest0-21swapper/020:45:160
229299173,7cyclictest0-21swapper/019:40:080
229299171,9cyclictest19309-21/usr/sbin/munin00:05:150
229299171,8cyclictest0-21swapper/020:50:160
2292991715,2cyclictest7-21ksoftirqd/023:32:450
2292991714,0cyclictest7-21ksoftirqd/019:50:090
2292991713,3cyclictest947-21sendmail-mta21:08:370
2292991712,2cyclictest0-21swapper/022:24:380
2292991710,5cyclictest0-21swapper/020:20:120
2292991710,4cyclictest0-21swapper/022:51:230
2292991710,3cyclictest0-21swapper/000:35:140
2292991710,2cyclictest0-21swapper/022:24:580
229299170,17cyclictest0-21swapper/000:16:490
229399167,4cyclictest6498-21seq22:09:321
229399163,9cyclictest0-21swapper/100:20:101
229399163,7cyclictest0-21swapper/122:20:091
2293991610,5cyclictest0-21swapper/122:15:131
2293991610,3cyclictest0-21swapper/119:25:101
229399160,8cyclictest0-21swapper/119:40:081
229299162,8cyclictest0-21swapper/023:20:090
2292991615,1cyclictest7787-21apache221:00:330
2292991610,6cyclictest0-21swapper/022:30:380
2292991610,4cyclictest0-21swapper/023:35:180
2292991610,3cyclictest0-21swapper/021:10:190
2292991610,3cyclictest0-21swapper/000:20:100
2292991610,1cyclictest0-21swapper/020:01:100
2292991610,0cyclictest0-21swapper/023:04:480
229299160,8cyclictest0-21swapper/022:40:080
2293991511,3cyclictest100150irq/106-eth1-rx22:55:141
2293991510,3cyclictest0-21swapper/121:00:101
2293991510,3cyclictest0-21swapper/120:40:101
2293991510,2cyclictest0-21swapper/120:05:071
229299154,4cyclictest0-21swapper/022:35:190
229299153,3cyclictest6938-21ntp_states19:20:160
2292991515,0cyclictest0-21swapper/020:35:340
2292991510,4cyclictest0-21swapper/020:29:140
2292991510,2cyclictest0-21swapper/021:45:090
2292991510,2cyclictest0-21swapper/019:35:190
229299150,9cyclictest0-21swapper/019:55:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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