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2026-04-01 - 07:24
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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 rack7slot8.osadl.org (updated Tue Mar 31, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18498221934,49sleep00-21swapper/007:08:530
186939916527,16cyclictest10250irq/56-4a10000007:38:580
18693991628,23cyclictest6407-21diskstats10:35:350
186939916224,120cyclictest787-21haveged12:05:020
186939916122,16cyclictest1408-21nginx12:11:170
186939916029,115cyclictest30751-21wget10:05:130
186939915937,112cyclictest32235-21/usr/sbin/munin08:00:500
18693991588,19cyclictest24334-21diskstats09:40:230
18693991587,17cyclictest1540-21apt-get10:17:060
186939915825,20cyclictest1408-21nginx09:34:190
18693991578,15cyclictest15998-21users09:05:490
186939915728,111cyclictest1305-21snmpd11:17:180
18693991569,55cyclictest9059-21ntp_states10:45:430
18693991559,17cyclictest3528-21fw_conntrack10:25:240
18693991556,16cyclictest27385-21apt-get07:47:120
186939915531,113cyclictest2266-21diskstats10:20:210
186939915450,92cyclictest2950-21sshd12:30:390
186939915427,108cyclictest10250irq/56-4a10000009:04:130
18693991539,18cyclictest7079-21ntp_states08:30:420
18693991538,20cyclictest1305-21snmpd10:11:220
18693991536,19cyclictest14031-21ntp_states11:05:390
186939915340,99cyclictest21900-21seq07:20:490
186939915333,109cyclictest4902-21runrttasks10:30:350
186939915323,13cyclictest0-21swapper/008:41:000
186939915322,14cyclictest10250irq/56-4a10000009:19:160
186939915316,15cyclictest20266-21latency_hist09:25:030
18693991528,20cyclictest21223-21wget11:35:140
18693991528,17cyclictest12985-21/usr/sbin/munin11:00:470
18693991527,18cyclictest29695-21diskstats10:00:240
186939915246,94cyclictest27264-21runrttasks09:50:400
186939915243,98cyclictest32122-21runrttasks12:19:130
186939915242,92cyclictest3650irq/20-4900000008:20:250
186939915237,103cyclictest8105-21runrttasks10:41:190
18693991518,17cyclictest586-21df08:05:190
186939915143,96cyclictest8115-21seq08:35:180
186939915137,101cyclictest2626-21runrttasks12:30:090
186939915133,100cyclictest3422-21processes08:15:450
186939915128,111cyclictest28616-21wget12:05:150
186939915125,19cyclictest1305-21snmpd08:56:040
186939915119,111cyclictest1276-21runrttasks11:20:170
186939915112,16cyclictest1408-21nginx08:25:200
18693991509,16cyclictest22741-21diskstats07:25:220
18693991508,19cyclictest17031-21ntp_states09:10:420
186939915025,17cyclictest4136-21wget12:35:130
186939915014,16cyclictest0-21swapper/011:50:160
18693991498,17cyclictest1305-21snmpd10:51:310
18693991497,21cyclictest1305-21snmpd08:51:030
186939914924,113cyclictest20257-21fw_forwarded_lo07:15:270
18693991488,20cyclictest1305-21snmpd09:26:100
186939914843,93cyclictest32425-21runrttasks12:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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