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2025-10-13 - 18:46
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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 100 highest latencies:
System rack7slot8.osadl.org (updated Mon Oct 13, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32415220631,48sleep00-21swapper/019:09:400
325349910538,31cyclictest101ktimersoftd/020:45:200
993521036,13sleep09936-21df_inode19:45:330
100621017,12sleep032465-21apt-get19:11:150
294732996,13sleep029482-21/usr/sbin/munin21:00:290
2742529817,14sleep0101ktimersoftd/020:51:570
296782975,11sleep029739-21/usr/sbin/munin23:10:170
195422975,11sleep01364-21sshd00:38:130
32534999265,12cyclictest101ktimersoftd/022:51:320
32534999242,32cyclictest3864-21runrttasks23:35:450
132172904,7sleep00-21swapper/019:59:200
32534998947,27cyclictest101ktimersoftd/022:57:130
32534998945,30cyclictest3650irq/20-4900000020:22:140
32534998840,14cyclictest10250irq/56-4a10000019:43:040
73622876,69sleep07363-21diskstats23:50:260
32534998724,29cyclictest792-21haveged22:25:030
3253499869,20cyclictest1356-21snmpd23:56:480
3253499867,17cyclictest28535-21diskstats23:05:240
32534998639,32cyclictest10250irq/56-4a10000021:43:210
32534998638,32cyclictest10250irq/56-4a10000000:23:520
32534998633,33cyclictest10915-21/usr/sbin/munin00:05:450
3253499859,20cyclictest1356-21snmpd23:21:410
32534998545,19cyclictest17408-21sh00:30:300
32534998524,16cyclictest21582-21latency_hist22:40:050
32534998453,13cyclictest10150irq/55-4a10000021:25:260
32534998441,28cyclictest3650irq/20-4900000000:10:240
32534998435,16cyclictest10250irq/56-4a10000022:13:500
32534998435,15cyclictest10250irq/56-4a10000020:03:080
32534998428,24cyclictest10250irq/56-4a10000022:48:240
32534998364,11cyclictest101ktimersoftd/022:05:540
32534998362,11cyclictest101ktimersoftd/023:25:210
32534998347,18cyclictest31532-21sshd23:16:420
32534998335,31cyclictest11597-21cron22:00:000
3253499829,19cyclictest2113-21irqstats19:15:310
3253499828,36cyclictest5197-21mailstats23:40:520
32534998247,23cyclictest101ktimersoftd/020:59:040
32534998244,28cyclictest0-21swapper/019:35:130
32534998232,17cyclictest45422sleep019:25:230
32534998231,34cyclictest10150irq/55-4a10000020:18:550
32534998227,37cyclictest2892-21sh21:25:000
32534998134,16cyclictest10250irq/56-4a10000020:38:090
32534998122,19cyclictest1424-21nginx22:03:170
273332814,7sleep00-21swapper/023:00:340
3253499808,35cyclictest31546-21latency_hist21:10:020
32534998058,14cyclictest101ktimersoftd/020:10:270
32534998050,13cyclictest10150irq/55-4a10000020:25:430
32534998050,13cyclictest10150irq/55-4a10000000:00:490
32534998045,24cyclictest0-21swapper/023:45:240
32534997947,14cyclictest10150irq/55-4a10000021:17:020
32534997943,26cyclictest0-21swapper/019:20:240
32534997942,26cyclictest9764-21mailstats21:50:480
3253499787,34cyclictest6619-21latency_hist21:40:040
32534997858,11cyclictest101ktimersoftd/020:40:190
32534997857,12cyclictest101ktimersoftd/021:30:200
3253499777,18cyclictest31877-21diskstats21:10:250
32534997748,12cyclictest10150irq/55-4a10000019:30:300
3253499765,20cyclictest1356-21snmpd22:28:260
32534997555,13cyclictest101ktimersoftd/020:30:460
32534997555,11cyclictest101ktimersoftd/021:45:260
32534997547,13cyclictest10150irq/55-4a10000022:15:250
32534997546,13cyclictest10150irq/55-4a10000022:30:250
32534997546,13cyclictest10150irq/55-4a10000020:05:400
32534997545,15cyclictest10150irq/55-4a10000000:15:240
32534997545,13cyclictest10150irq/55-4a10000019:50:490
32534997455,11cyclictest101ktimersoftd/000:25:540
32534997424,40cyclictest0-21swapper/023:30:060
3253499735,56cyclictest22671-21runrttasks22:43:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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