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2025-11-27 - 07:10
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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 Thu Nov 27, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27990220828,52sleep00-21swapper/019:06:530
284439916479,35cyclictest1903-21apt-get23:51:130
284439915574,41cyclictest15530-21fw_packets20:25:260
284439915482,34cyclictest8185-21runrttasks19:55:390
284439915379,53cyclictest1356-21snmpd22:00:170
284439915177,20cyclictest26064-21ntp_states23:15:390
284439915078,34cyclictest11928-21ntp_states20:10:410
284439915066,27cyclictest4803-21apt-get19:47:050
284439914967,24cyclictest773-21apt-get19:32:080
284439914777,51cyclictest1356-21snmpd19:44:400
284439914675,20cyclictest18597-21ntp_states22:45:400
284439914672,36cyclictest1356-21snmpd00:25:160
284439914581,21cyclictest8858-21df_inode00:15:190
284439914577,47cyclictest16929-21seq20:30:400
284439914572,20cyclictest29650-21diskstats23:30:230
284439914562,23cyclictest3977-21apt-get21:52:100
284439914480,46cyclictest14798-21munin-run00:40:030
284439914480,25cyclictest760-21systemd-journal19:22:260
284439914477,30cyclictest800-21avahi-daemon19:55:030
284439914474,49cyclictest1356-21snmpd23:26:340
284439914474,34cyclictest1356-21snmpd21:55:350
284439914389,42cyclictest1336-21runrttasks21:40:280
284439914374,33cyclictest29121-21wget21:20:150
284439914291,39cyclictest1356-21snmpd21:35:250
284439914280,21cyclictest1960-21apt-config23:50:060
284439914279,29cyclictest760-21systemd-journal23:02:470
284439914276,49cyclictest16101-21ntp_states22:35:400
284439914274,32cyclictest28374-21apt-get19:10:350
284439914270,38cyclictest24410-21ntp_states21:00:380
284439914270,20cyclictest4799-21grep00:00:030
284439914177,30cyclictest21872-21tr20:50:340
284439914171,19cyclictest7634-21diskstats00:10:240
284439914087,40cyclictest1356-21snmpd21:45:290
284439914076,34cyclictest1356-21snmpd19:39:390
284439914076,21cyclictest11473-21apt-get22:17:000
284439914072,34cyclictest5132-21df00:00:210
284439914069,38cyclictest1356-21snmpd20:06:330
284439913984,43cyclictest19848-21sshd20:42:270
284439913978,46cyclictest15060-21find22:30:480
284439913978,21cyclictest24437-21/usr/sbin/munin23:10:210
284439913976,22cyclictest760-21systemd-journal21:12:270
284439913970,26cyclictest17354-21ntp_states22:40:390
284439913969,33cyclictest19772-21memory22:50:360
284439913892,33cyclictest815-21rs:main0
284439913885,41cyclictest22994-21runrttasks20:55:250
284439913877,21cyclictest9280-21fw_conntrack20:00:250
284439913876,25cyclictest8250-21wget22:05:120
284439913875,46cyclictest20363-21wget20:45:140
284439913874,34cyclictest1356-21snmpd20:19:470
284439913783,42cyclictest20888-21df_inode22:55:190
284439913782,44cyclictest31733-21diskstats21:30:240
284439913773,43cyclictest6378-21df_inode00:05:190
284439913772,34cyclictest1356-21snmpd00:21:480
284439913768,50cyclictest23538-21nfs4_client23:05:350
284439913767,32cyclictest30983-21irqstats23:35:340
284439913689,33cyclictest815-21rs:main0
284439913683,39cyclictest12669-21runrttasks00:30:290
284439913675,20cyclictest9776-21memory22:10:320
284439913673,20cyclictest13540-21memory22:25:350
284439913586,38cyclictest1801-21node23:44:160
284439913585,38cyclictest25494-21runrttasks21:05:240
284439913585,37cyclictest30356-21seq19:15:230
284439913584,39cyclictest786-21http19:30:030
284439913583,41cyclictest1356-21snmpd21:15:080
284439913476,38cyclictest815-21rs:main0
284439913389,32cyclictest14986-21sshd20:23:270
284439913281,38cyclictest17771-21munin-node20:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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