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2026-04-09 - 11:33
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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 Wed Apr 08, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6192221031,54sleep00-21swapper/007:07:540
65129911338,37cyclictest26624-21memory10:30:330
65129911333,59cyclictest1408-21nginx07:23:040
65129911234,37cyclictest7995-21apt09:20:010
65129911232,32cyclictest1305-21snmpd09:07:080
65129911149,39cyclictest636-21df10:55:200
65129911136,55cyclictest15590-21wget07:45:140
65129910963,36cyclictest23811-21systemd12:24:450
65129910919,37cyclictest28680-21apt-get10:42:090
65129910839,50cyclictest9292-21seq09:22:100
65129910819,38cyclictest19696-21apt-get08:02:100
65129910756,40cyclictest25683-21users10:25:490
65129910751,36cyclictest1305-21snmpd11:35:280
65129910735,54cyclictest21411-21wget10:10:130
65129910735,34cyclictest13953-21munin-run07:40:010
65129910733,18cyclictest8548-21chrt11:25:140
65129910732,40cyclictest12315-21runrttasks09:35:140
65129910642,30cyclictest19966-21runrttasks12:07:530
65129910634,49cyclictest19634-21wc10:05:060
65129910565,32cyclictest18611-21http12:05:050
65129910564,32cyclictest30676-21fw_forwarded_lo10:45:270
65129910560,35cyclictest9622-21aten_r7power_cu11:30:090
65129910560,35cyclictest21807-21diskstats12:15:180
65129910559,35cyclictest1647-21http11:00:330
65129910548,44cyclictest1408-21nginx08:18:180
65129910444,23cyclictest17614-21fw_forwarded_lo07:50:470
65129910433,53cyclictest1305-21snmpd08:37:020
65129910429,36cyclictest27905-21fw_conntrack08:30:230
65129910360,32cyclictest21823-21runrttasks08:05:350
65129910342,47cyclictest1313-21sshd08:54:480
65129910338,21cyclictest30412-21fw_forwarded_lo08:40:240
65129910336,31cyclictest31669-21if_err_eth008:45:280
65129910336,31cyclictest11792-21/usr/sbin/munin07:30:210
65129910249,35cyclictest1305-21snmpd11:57:270
65129910248,36cyclictest1305-21snmpd10:37:300
65129910238,32cyclictest15731-21gpgv11:55:040
65129910229,32cyclictest19583-21apt-get10:06:220
65129910157,34cyclictest24997-21ps12:25:450
65129910149,32cyclictest6827-21chrt07:10:250
65129910144,30cyclictest1305-21snmpd09:47:190
65129910133,50cyclictest5864-21/usr/sbin/munin11:15:140
65129910055,35cyclictest10382-21cut07:25:110
65129910047,41cyclictest7136-21/usr/sbin/munin11:20:280
65129910034,34cyclictest801-21dbus-daemon12:35:020
6512999934,49cyclictest19470-21chrt07:58:130
6512999930,50cyclictest25202-21/usr/sbin/munin08:20:520
6512999927,51cyclictest17230-21wget09:55:110
6512999861,27cyclictest3735-21ntpq11:05:320
6512999857,29cyclictest3246-21sshd09:00:430
6512999835,22cyclictest11185-21df_inode09:30:170
6512999824,23cyclictest14608-21latency_hist09:45:030
6512999756,31cyclictest2526-21runrttasks08:59:250
6512999754,29cyclictest101ktimersoftd/009:29:550
6512999742,40cyclictest20407-21runrttasks12:10:120
6512999733,47cyclictest13748-21ntp_states11:45:400
6512999728,36cyclictest14316-21fw_forwarded_lo07:40:250
6512999727,18cyclictest23084-21ntp_states08:10:400
6512999450,34cyclictest4817-21df11:10:180
6512999430,34cyclictest1305-21snmpd08:27:000
6512999429,50cyclictest1305-21snmpd09:12:120
6512999428,47cyclictest12295-21ls11:40:140
6512999365,20cyclictest23337-21runrttasks10:17:020
6512999254,28cyclictest31669-21/usr/sbin/munin10:50:120
6512999233,19cyclictest16320-21/usr/sbin/munin09:50:340
6512998930,17cyclictest8601-21apt-get07:17:040
6512998923,35cyclictest27407-21ntp_states12:35:380
6512998824,24cyclictest23837-21seq10:20:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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