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2025-12-19 - 08:01
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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 Fri Dec 19, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9090220429,47sleep00-21swapper/019:07:090
94949917349,106cyclictest16695-21seq21:40:210
9494991718,34cyclictest1408-21nginx19:32:100
94949916725,15cyclictest1408-21nginx22:47:450
94949916640,109cyclictest10250irq/56-4a10000019:52:140
9494991619,18cyclictest11007-21apt-get21:18:130
94949916035,107cyclictest10250irq/56-4a10000021:57:490
9494991599,18cyclictest10165-21ntp_states23:20:450
94949915936,104cyclictest20516-21ntpq00:00:350
9494991588,22cyclictest5283-21/usr/sbin/munin20:55:420
94949915810,13cyclictest1408-21nginx21:22:270
94949915739,106cyclictest23592-21sshd20:02:060
94949915710,18cyclictest18975-21cmp23:55:210
94949915641,103cyclictest14833-21tr23:40:160
9494991559,16cyclictest11588-21apt-get19:17:070
94949915524,19cyclictest1305-21snmpd00:38:460
9494991547,32cyclictest1305-21snmpd20:37:510
94949915412,15cyclictest1408-21nginx22:22:430
9494991539,20cyclictest18357-21munin-run23:55:040
9494991538,18cyclictest2783-21ntp_states20:45:420
94949915321,116cyclictest18749-21wget19:45:130
94949915234,107cyclictest2129-21runrttasks20:43:510
94949915225,116cyclictest7992-21pluginstate23:15:040
94949915225,116cyclictest27305-21apt-get20:17:010
94949915222,119cyclictest6343-21users23:06:440
9494991518,18cyclictest12631-21ntp_states23:30:400
9494991516,20cyclictest23946-21munin-node22:10:140
94949915130,110cyclictest25951-21apt-get22:17:100
94949915126,113cyclictest9000-21chrt21:10:380
94949915126,107cyclictest1305-21snmpd20:07:460
94949915125,116cyclictest12290-21df_inode19:20:210
94949915123,16cyclictest8359-21apt-config23:15:140
94949915115,123cyclictest25954-21ntpq00:21:080
9494991507,18cyclictest17048-21seq23:49:330
94949915035,102cyclictest7741-21ntpq21:05:370
94949915025,17cyclictest1305-21snmpd20:27:510
9494991496,24cyclictest24653-21seq00:17:110
94949914939,98cyclictest16935-21apt-get19:40:590
94949914937,99cyclictest2925-21df22:55:180
94949914937,102cyclictest22060-21threads22:00:480
94949914845,92cyclictest23317-21sshd00:11:260
94949914835,100cyclictest754-21systemd-journal21:32:260
94949914816,111cyclictest13387-21wget19:25:130
94949914741,96cyclictest28211-21runrttasks20:20:410
94949914740,94cyclictest28035-21seq22:25:340
94949914734,101cyclictest29248-21runrttasks22:30:330
94949914733,103cyclictest4294-21cat23:00:340
94949914726,109cyclictest787-21haveged20:35:060
9494991468,18cyclictest1543-21wget22:50:140
94949914649,88cyclictest3747-21runrttasks20:50:160
94949914644,91cyclictest20169-21runrttasks21:55:030
94949914541,93cyclictest31623-21runrttasks22:40:170
94949914530,104cyclictest21370-21gpg-connect-age19:55:120
94949914524,110cyclictest1408-21nginx21:02:240
9494991448,17cyclictest17932-21diskstats21:45:230
9494991446,14cyclictest1408-21nginx19:37:110
94949914422,19cyclictest12804-21wget21:25:140
9494991437,25cyclictest21382-21runrttasks00:05:130
94949914344,88cyclictest25699-21seq20:10:420
94949914333,88cyclictest13850-21seq23:35:360
94949914237,94cyclictest28005-21cat00:30:130
94949914221,109cyclictest11060-21wget23:25:130
94949914123,16cyclictest23886-21cut22:10:030
9494991406,22cyclictest15591-21ntpq21:35:360
94949914040,88cyclictest27167-21runrttasks00:25:430
94949914025,20cyclictest1305-21snmpd19:12:330
94949913938,86cyclictest30261-21wget22:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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