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2025-06-19 - 18:28
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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 50 highest latencies:
System rack7slot8.osadl.org (updated Thu Jun 19, 2025 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22648222537,58sleep00-21swapper/019:08:420
2286599156132,15cyclictest318322sleep000:00:340
228659915363,50cyclictest1424-21nginx21:01:590
228659914263,40cyclictest6144-21apt-get22:17:090
228659914165,39cyclictest2815-21apt-get00:17:240
228659914069,33cyclictest28628-21memory21:40:330
228659913968,35cyclictest27829-21/usr/sbin/munin23:45:510
228659913771,45cyclictest1424-21nginx22:02:500
228659913768,33cyclictest30670-21users21:46:460
228659913570,45cyclictest760-21systemd-journal00:09:390
228659913569,22cyclictest3636-21apt-get22:10:330
228659913563,36cyclictest1356-21snmpd23:37:110
228659913562,35cyclictest3636-21apt-get22:10:020
228659913561,55cyclictest1356-21snmpd23:32:110
228659913561,37cyclictest1356-21snmpd21:24:530
228659913468,48cyclictest30532-21diskstats23:55:300
228659913462,37cyclictest1356-21snmpd23:17:060
228659913461,52cyclictest1356-21snmpd20:34:400
228659913363,36cyclictest16483-21munin-run23:00:010
228659913362,36cyclictest31385-21df_inode21:50:210
228659913360,55cyclictest1356-21snmpd20:39:410
228659913358,36cyclictest28181-21latency_hist21:40:040
228659913169,28cyclictest1356-21snmpd22:36:470
228659913159,35cyclictest16047-21diskstats20:50:200
228659913157,37cyclictest1336-21runrttasks22:50:510
228659913156,58cyclictest8409-21runrttasks20:20:150
228659913060,31cyclictest7887-21/usr/sbin/munin22:25:130
228659913059,52cyclictest1356-21snmpd23:42:120
228659912966,43cyclictest23067-21diskstats23:25:270
228659912960,48cyclictest28253-21sshd19:30:330
228659912959,37cyclictest1336-21runrttasks20:15:450
228659912959,33cyclictest20182-21users21:05:470
228659912958,52cyclictest1356-21snmpd00:22:310
228659912957,36cyclictest1356-21snmpd23:07:040
228659912861,22cyclictest6893-21fw_forwarded_lo22:20:320
228659912860,35cyclictest23163-21diskstats19:10:260
228659912859,18cyclictest26713-21sshd21:33:100
228659912857,34cyclictest1356-21snmpd20:04:350
228659912777,38cyclictest12200-21mailstats22:40:520
228659912759,48cyclictest9420-21showcpuidle00:39:330
228659912751,38cyclictest1356-21snmpd21:56:380
228659912666,21cyclictest1336-21runrttasks20:05:150
228659912665,42cyclictest14666-21cut20:45:160
228659912662,35cyclictest29070-21/usr/sbin/munin23:50:290
228659912658,33cyclictest31566-21apt-get19:47:090
228659912655,33cyclictest5960-21wget20:10:140
228659912575,37cyclictest2842-21sshd19:56:330
228659912568,38cyclictest1356-21snmpd21:10:490
228659912560,44cyclictest1336-21runrttasks19:35:450
228659912556,32cyclictest800-21avahi-daemon23:00:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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