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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 100 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
253209912335,0cyclictest16066-21diskstats21:49:100
253209912334,0cyclictest6823-21seq22:56:450
253209912331,0cyclictest26663-21ntpdc23:54:330
253209912240,0cyclictest0-21swapper23:42:190
253209912233,0cyclictest27313-21ntpq19:13:580
253209912233,0cyclictest19773-21wc20:24:260
253209912233,0cyclictest13717-21chrt20:07:070
253209912232,0cyclictest6175-21nfs4_client19:44:340
253209912232,0cyclictest25853-21cron23:53:460
253209912231,0cyclictest24197-21ls22:13:490
253209912149,0cyclictest7350irq/45-4a10000023:16:160
253209912132,0cyclictest29082-21seq20:52:070
253209912131,0cyclictest30497-21users22:29:480
253209912131,0cyclictest17558-21/usr/sbin/munin20:18:590
253209912130,0cyclictest2527-21fschecks_time00:19:180
253209912128,0cyclictest7804-21ls21:24:250
253209912111,0cyclictest10956-21diskstats19:59:110
253209912041,0cyclictest25708-21runrttasks22:17:280
253209912038,0cyclictest0-21swapper19:48:580
253209912033,0cyclictest26118-21ntpq19:09:350
253209912033,0cyclictest20905-21aten_r4power_cu22:03:580
253209912030,0cyclictest32453-21seq21:01:390
253209911935,0cyclictest10627-21modprobe21:33:520
253209911934,0cyclictest46152chrt00:24:390
253209911934,0cyclictest3710-21sendmail-msp19:38:500
253209911934,0cyclictest31141-21aten_r4power_cu00:08:570
253209911934,0cyclictest17091-21runrttasks20:16:490
253209911933,0cyclictest14276-21df23:19:050
253209911932,0cyclictest26149-21cpu22:19:020
253209911926,0cyclictest20690-21seq22:03:200
253209911911,0cyclictest32087-21ls19:24:430
253209911812,0cyclictest5420-21sendmail-msp21:18:490
253209911752,0cyclictest0-21swapper21:06:160
253209911733,0cyclictest14051-21/usr/sbin/munin20:09:220
253209911713,0cyclictest28805-21grep00:00:020
253209911638,0cyclictest10024-21runrttasks23:04:530
253209911635,0cyclictest990-21load19:29:250
253209911629,0cyclictest1707-21runrttasks22:41:400
253209911626,0cyclictest29833-21fschecks_time00:04:170
253209911532,0cyclictest11874-21chrt23:11:110
253209911526,0cyclictest20757-21munin-run23:38:500
253209911524,0cyclictest19049-21munin-run23:33:490
253209911513,0cyclictest30806-21runrttasks20:57:150
253209911433,0cyclictest8887-21grep21:28:510
253209911432,0cyclictest2264-21/usr/sbin/munin21:08:580
253209911332,0cyclictest27066-21grep20:44:470
253209911228,0cyclictest5431-21latency_hist22:53:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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