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2025-12-10 - 00:43
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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 Tue Dec 09, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13275214930,13sleep013272-21irqstats07:05:240
14167991678,130cyclictest1356-21snmpd11:16:000
14167991677,108cyclictest15993-21awk11:25:480
14167991647,90cyclictest12827-21apt-get09:12:090
14167991639,111cyclictest12829-21munin-run09:10:020
14167991638,109cyclictest19337-21users09:30:510
141679916339,86cyclictest10250irq/56-4a10000008:40:040
141679916237,106cyclictest10250irq/56-4a10000010:41:080
141679916112,126cyclictest24861-21fw_conntrack07:50:260
14167991609,96cyclictest15899-21ntp_states07:15:420
14167991609,92cyclictest18623-21irqstats11:35:590
14167991599,112cyclictest23774-21runrttasks07:45:380
14167991598,90cyclictest25746-21apt-get07:57:070
141679915918,101cyclictest1424-21nginx12:05:300
141679915831,108cyclictest1424-21nginx10:25:130
141679915828,109cyclictest1356-21snmpd10:00:330
141679915727,110cyclictest1356-21snmpd12:11:140
141679915647,92cyclictest3650irq/20-4900000011:12:100
141679915624,117cyclictest1356-21snmpd10:35:470
14167991557,93cyclictest31600-21ntp_states10:20:420
14167991557,108cyclictest5786-21irqstats08:40:350
141679915531,106cyclictest10250irq/56-4a10000011:30:240
141679915531,105cyclictest10250irq/56-4a10000012:21:250
141679915528,107cyclictest1356-21snmpd08:45:300
141679915428,106cyclictest28026-21sshd10:05:490
141679915336,104cyclictest760-21systemd-journal12:17:310
14167991528,88cyclictest1540-21diskstats08:25:240
14167991527,112cyclictest15718-21apt-get09:21:200
14167991527,108cyclictest1356-21snmpd10:55:540
14167991525,93cyclictest8556-21find08:50:480
14167991518,104cyclictest1356-21snmpd09:25:190
14167991517,122cyclictest11143-21http11:10:040
14167991516,86cyclictest20375-21apt-get07:37:110
141679915137,104cyclictest1424-21nginx10:15:100
141679915123,108cyclictest657-21latency_hist12:35:040
14167991508,122cyclictest23068-21sshd11:54:310
141679915034,104cyclictest18313-21sshd07:25:300
141679915034,104cyclictest1801-21node09:45:470
14167991499,96cyclictest5284-21diskstats10:45:520
14167991498,104cyclictest14363-21diskstats11:20:210
141679914938,99cyclictest21619-21ntpq09:40:400
14167991489,98cyclictest1091-21irqstats12:35:310
14167991488,101cyclictest25352-21ntp_states09:55:460
14167991486,87cyclictest1652-21ntp_states10:30:390
141679914830,106cyclictest1424-21nginx11:55:280
14167991478,98cyclictest1424-21nginx08:19:470
14167991478,104cyclictest760-21systemd-journal10:12:310
14167991477,103cyclictest28825-21wget08:05:250
141679914724,104cyclictest815-21rs:main0
14167991468,118cyclictest24516-21/usr/sbin/munin12:00:320
14167991468,117cyclictest1356-21snmpd08:56:140
14167991468,116cyclictest22544-21ntp_states07:40:420
14167991468,103cyclictest19646-21ntp_states07:30:400
141679914617,99cyclictest1336-21runrttasks08:23:200
14167991458,103cyclictest1356-21snmpd07:24:460
141679914537,94cyclictest11167-21sshd09:01:300
14167991449,92cyclictest24853-21latency_hist09:55:020
14167991448,92cyclictest6454-21df10:50:200
141679914449,81cyclictest101ktimersoftd/008:02:210
141679914426,104cyclictest1356-21snmpd08:35:030
141679914413,112cyclictest20975-21diskstats11:45:220
14167991437,93cyclictest15821-21apt-config09:20:090
141679914343,90cyclictest20176-21runrttasks09:35:250
141679914228,104cyclictest30556-21seq08:10:470
141679914127,103cyclictest792-21haveged12:26:160
141679914026,103cyclictest14870-21/usr/sbin/munin07:10:500
141679913839,88cyclictest20581-21runrttasks11:44:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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