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2026-07-17 - 02:30
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 20 highest latencies:
System rack4slot2.osadl.org (updated Fri Jul 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2505728900,0sleep024627-1kworker/u3:219:06:590
253209913033,0cyclictest24924-21meminfo20:39:340
253209912942,0cyclictest28429-21/usr/sbin/munin22:24:370
253209912935,0cyclictest32284-21runrttasks22:35:200
253209912831,0cyclictest2861-21/usr/sbin/munin22:44:400
253209912740,0cyclictest29916-21/usr/sbin/munin19:19:240
253209912734,0cyclictest9870-21awk19:54:420
253209912732,0cyclictest16344-21/usr/sbin/munin23:24:260
253209912636,0cyclictest6118-21memory00:29:290
253209912633,0cyclictest7423-21df00:34:020
253209912611,0cyclictest6152-21memory21:19:390
253209912543,0cyclictest8437-21runrttasks23:00:540
253209912534,0cyclictest23485-21sensors23:44:440
253209912532,0cyclictest21419-21runrttasks20:29:250
253209912532,0cyclictest13319-21/usr/sbin/munin21:39:580
253209912530,0cyclictest4027-21/usr/sbin/munin19:39:030
253209912433,0cyclictest23050-21seq20:34:180
253209912432,0cyclictest15410-21chrt21:47:020
253209912411,0cyclictest1995-21sendmail-msp00:18:510
253209912335,0cyclictest17914-21fw_conntrack21:54:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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