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2025-06-17 - 02:33
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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 50 highest latencies:
System rackbslot2.osadl.org (updated Mon Jun 16, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20092132238184,20sleep20-21swapper/207:06:482
20094272235180,19sleep00-21swapper/007:09:280
20092272233203,19sleep10-21swapper/107:06:591
20092092229199,19sleep30-21swapper/307:06:463
2009656996057,2cyclictest2084129-21kworker/u8:1+flush-179:008:40:051
2009653996056,2cyclictest2248261-21ThreadPoolForeg11:45:010
2009653995650,3cyclictest2196847-21/usr/sbin/munin10:45:010
2009653995447,5cyclictest2062234-21/usr/share/muni08:10:090
22313112530,1chrt2231283-21snmp_wlanswitch11:25:030
2009664995248,3cyclictest2183604-21kworker/u8:2+events_unbound11:55:093
2009658995248,3cyclictest2183604-21kworker/u8:2+flush-179:011:35:042
2009656995246,5cyclictest2260383-31munin-html11:55:301
2009658995147,3cyclictest2101171-21kworker/u8:2+events_unbound08:55:082
2009653995150,1cyclictest2047373-21awk07:50:150
2009653995144,5cyclictest2222272-21latency_hist11:15:000
2009664995045,4cyclictest2080143-21/usr/share/muni08:30:013
2009656994945,3cyclictest2191821-21kworker/u8:1+flush-179:010:40:271
2009656994944,2cyclictest2179284-21kworker/u8:1+events_unbound10:25:101
2009656994845,2cyclictest2183604-21kworker/u8:2+flush-179:010:35:201
2009658994743,3cyclictest2022648-21kworker/u8:3+flush-179:008:10:052
2009658994743,3cyclictest1996356-21kworker/u8:0+events_unbound07:10:082
2009664994642,3cyclictest2191821-21kworker/u8:1+flush-179:011:00:063
2009664994642,3cyclictest2138962-21kworker/u8:3+flush-179:010:00:103
2009656994642,3cyclictest2096573-21kworker/u8:1+flush-179:009:30:061
2009656994632,2cyclictest2096573-21kworker/u8:1+flush-179:009:40:211
2009653994640,4cyclictest2014045-21/usr/share/muni07:15:070
2009664994541,3cyclictest2223141-21kworker/u8:0+events_unbound12:00:093
2009664994541,3cyclictest2009422-21kworker/u8:1+flush-179:007:35:243
2009664994532,1cyclictest1903124-1kworker/3:0H+kblockd07:50:553
2009658994542,2cyclictest2268589-21kworker/u8:3+flush-179:012:30:142
2009658994541,3cyclictest2183604-21kworker/u8:2+events_unbound11:50:082
2009658994538,5cyclictest2142881-21ntpq09:40:142
2009656994541,3cyclictest2138962-21kworker/u8:3+flush-179:010:50:051
2009664994441,2cyclictest2148667-21kworker/u8:0+flush-179:010:35:063
2009664994439,3cyclictest2144937-21/usr/share/muni09:45:013
2009653994442,1cyclictest2092776-21kworker/0:0+pm09:46:280
2009664994340,2cyclictest2191821-21kworker/u8:1+flush-179:011:15:053
2009664994340,2cyclictest2191821-21kworker/u8:1+flush-179:011:15:053
2009664994340,2cyclictest2096573-21kworker/u8:1+events_unbound09:05:103
2009664994339,3cyclictest2110473-21kworker/u8:0+flush-179:009:10:053
2009658994339,3cyclictest2261033-21kworker/u8:1+events_unbound12:10:102
2009658994338,3cyclictest2291872-21/usr/share/muni12:35:032
2009658994337,4cyclictest2287082-21latency_hist12:30:012
2009653994339,3cyclictest2066760-21/usr/share/muni08:15:070
2009653994337,4cyclictest2291340-21apt-get12:35:000
2009664994239,2cyclictest2022648-21kworker/u8:3+events_unbound07:30:093
2009658994238,3cyclictest2049131-21kworker/u8:0+events_unbound08:00:002
2009656994238,3cyclictest1992024-21kworker/u8:2+flush-179:007:35:171
2009656994230,1cyclictest1272-21snmpd07:27:511
21154842410,1chrt2115481-21ntpq09:10:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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