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2026-08-24 - 06:51
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 792 highest latencies:
System rack5slot7.osadl.org (updated Mon Aug 24, 2026 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16583224122174,184sleep00-21swapper18:58:410
169159916517,43cyclictest18643-21irqstats23:12:400
169159916512,69cyclictest6338-21/usr/sbin/munin00:12:000
169159916215,52cyclictest25048-21apt-get23:31:390
169159916212,63cyclictest32120-21fw_conntrack22:17:220
169159916212,63cyclictest23731-21ntpq21:52:480
169159916115,61cyclictest1817-21ntp_states23:57:560
169159916043,34cyclictest24457-21sh23:29:080
169159916012,64cyclictest18466-21ssh21:37:390
169159916012,23cyclictest14207-21snmpd22:11:390
16915991579,25cyclictest21292-21ssh23:20:240
169159915716,41cyclictest31134-21users23:48:130
169159915713,27cyclictest978-21/usr/sbin/munin22:23:040
169159915615,26cyclictest10787-21ssh21:15:240
169159915545,31cyclictest1761-21sshd21:41:370
169159915416,25cyclictest24889-21ssh21:56:430
169159915215,26cyclictest15003-21sshd21:27:360
169159910617,69cyclictest0-21swapper19:16:560
169159910217,63cyclictest28855-21fw_conntrack23:42:240
169159910117,46cyclictest12175-21ssh22:53:080
169159910115,26cyclictest10341-21zcat22:48:040
169159910114,46cyclictest27215-21irqstats23:37:340
169159910015,46cyclictest5065-21ssh22:32:530
169159910015,24cyclictest13365-21memory21:22:460
169159910013,24cyclictest10179-21if_eth000:22:300
16915999917,45cyclictest7864-21apt-get22:41:390
16915999914,45cyclictest15169-21irqstats23:02:320
16915999829,48cyclictest2992-21ssh22:27:050
16915999818,22cyclictest12064-21users21:18:160
16915999811,48cyclictest23245-21ssh23:26:280
16915999716,59cyclictest27023-21irqstats22:02:370
16915999714,63cyclictest6546-21fw_conntrack22:37:230
16915999714,61cyclictest21799-21fw_conntrack21:47:210
16915999712,43cyclictest5855-21ssh21:01:290
16915999712,24cyclictest2976-21ssh00:01:550
16915999711,63cyclictest22990-21cat19:36:260
16915999615,44cyclictest28982-21ssh22:08:000
16915999613,43cyclictest17079-21ntp_states23:07:540
16915999613,23cyclictest4606-21/usr/sbin/munin00:07:270
16915999612,24cyclictest6846-21unixbench_singl21:03:100
16915999519,41cyclictest13068-21munin-run00:31:250
16915999516,60cyclictest32557-21ntp_states23:52:580
16915999516,41cyclictest17217-21users21:33:100
16915999515,44cyclictest8596-21ssh21:08:110
16915999512,62cyclictest13391-21/usr/sbin/munin22:57:200
16915999411,61cyclictest2295-21/usr/sbin/munin20:41:470
16915999317,55cyclictest17819-21munin-node19:06:280
16915999316,56cyclictest32514-21ntp_states20:27:180
16915999313,22cyclictest9253-21ssh00:19:270
16915999311,41cyclictest3992-21latency_hist20:51:220
1691599919,63cyclictest31172-21cut20:21:440
16915999115,61cyclictest23461-21wc19:37:160
16915999113,23cyclictest24019-21wget19:41:460
16915999038,22cyclictest29244-21sendmail20:11:230
16915999036,39cyclictest21319-21wget19:26:470
16915999015,56cyclictest0-21swapper19:47:040
16915998914,41cyclictest0-21swapper19:56:260
16915998913,28cyclictest4129-21/usr/sbin/munin20:51:430
1691599889,60cyclictest18517-21sort19:11:280
16915998817,23cyclictest21094-21users19:22:310
16915998811,21cyclictest1395-21apt-get20:36:340
16915998719,25cyclictest28007-21ntp_states20:02:180
16915998717,22cyclictest30110-21users20:12:320
16915998714,24cyclictest967-21ntp_states20:32:190
16915998619,22cyclictest30252-21apt-get20:16:420
16915998613,24cyclictest27124-21ntp_states19:57:190
16915998522,45cyclictest0-21swapper19:12:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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