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2026-09-08 - 13:58
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack7slot8.osadl.org (updated Tue Sep 08, 2026 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11391223731,54sleep00-21swapper/019:08:400
116139910261,26cyclictest101ktimersoftd/020:22:110
116139910146,39cyclictest101ktimersoftd/020:17:280
11613999931,29cyclictest1408-21nginx19:38:300
11613999833,24cyclictest19765-21/usr/sbin/munin19:40:470
11613999658,24cyclictest0-21swapper/019:33:030
11613999537,41cyclictest1305-21snmpd00:34:090
11613999533,47cyclictest10250irq/56-4a10000019:56:470
11613999434,41cyclictest0-21swapper/021:28:290
11613999422,34cyclictest20618-21df19:45:190
11613999416,60cyclictest1408-21nginx23:57:330
11613999346,30cyclictest101ktimersoftd/022:10:010
11613999267,12cyclictest101ktimersoftd/021:40:020
11613999254,24cyclictest101ktimersoftd/000:15:390
11613999165,10cyclictest101ktimersoftd/021:05:420
11613999149,10cyclictest101ktimersoftd/023:45:020
11613999146,30cyclictest3650irq/20-4900000021:30:510
11613999145,31cyclictest3650irq/20-4900000020:37:090
11613999124,30cyclictest787-21haveged22:45:040
11613999018,34cyclictest15969-21munin-run23:40:030
11613998854,22cyclictest101ktimersoftd/021:20:410
11613998849,24cyclictest101ktimersoftd/019:20:190
11613998846,28cyclictest3650irq/20-4900000021:52:150
11613998831,13cyclictest9843-21/usr/sbin/munin23:15:200
11613998825,45cyclictest1305-21snmpd20:33:170
11613998824,44cyclictest23767-21df22:00:170
11613998742,26cyclictest2415-21cut22:45:170
11613998649,23cyclictest101ktimersoftd/021:45:410
11613998554,14cyclictest10150irq/55-4a10000019:25:480
11613998538,29cyclictest26061-21/usr/sbin/munin22:10:350
11613998514,50cyclictest8663-21wget23:10:160
11613998454,12cyclictest10150irq/55-4a10000020:55:410
11613998441,32cyclictest27940-21runrttasks22:16:020
11613998431,34cyclictest21502-21aten_r7power_cu00:00:150
11613998347,27cyclictest3714-21aten_r7power_po22:50:180
11613998331,32cyclictest31217-21wget20:25:150
11613998321,29cyclictest787-21haveged20:10:020
11613998318,48cyclictest1276-21runrttasks23:25:430
11613998317,47cyclictest805-21rs:main0
11613998232,37cyclictest101ktimersoftd/023:05:510
11613998232,34cyclictest11310-21seq23:20:180
11613998226,18cyclictest23348-21sshd21:59:180
11613998223,21cyclictest28595-21wget22:20:140
11613998220,30cyclictest787-21haveged21:05:020
11613998212,19cyclictest11909-21diskstats19:10:240
11613998153,20cyclictest13794-21sshd23:30:180
11613998151,13cyclictest10150irq/55-4a10000021:17:060
11613998136,30cyclictest10250irq/56-4a10000000:27:370
11613998134,31cyclictest10250irq/56-4a10000020:03:320
11613998121,21cyclictest13122-21df19:15:170
273602804,7sleep00-21swapper/000:22:470
11613998062,10cyclictest101ktimersoftd/023:50:410
11613998059,10cyclictest101ktimersoftd/020:10:290
11613998053,13cyclictest10150irq/55-4a10000000:05:290
11613998035,34cyclictest29823-21aten_r7power_cu22:25:130
11613998020,16cyclictest32166-21latency_hist22:35:040
1161399797,33cyclictest6510-21ntp_states23:00:380
11613997961,11cyclictest101ktimersoftd/021:40:450
11613997861,9cyclictest101ktimersoftd/022:35:370
11613997850,13cyclictest10150irq/55-4a10000000:35:130
11613997842,25cyclictest0-21swapper/020:50:160
11613997831,33cyclictest101ktimersoftd/019:50:190
11613997822,49cyclictest0-21swapper/000:10:120
1161399777,30cyclictest1608-21ntpd23:45:370
11613997746,14cyclictest10150irq/55-4a10000021:10:210
11613997642,26cyclictest0-21swapper/020:45:240
11613997341,14cyclictest10150irq/55-4a10000020:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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