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2026-06-03 - 09:02
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Wed Jun 03, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502760,0irq/46-4a10000012-21ksoftirqd/019:02:550
193819912942,0cyclictest24008-21/usr/sbin/munin00:08:480
193819912830,0cyclictest22925-21ntp_kernel_err22:29:210
193819912629,0cyclictest5663-21runrttasks21:39:080
193819912531,0cyclictest21985-21seq20:52:300
193819912529,0cyclictest26715-21unixbench_singl22:39:330
193819912431,0cyclictest28733-21chrt00:21:300
193819912429,0cyclictest31905-21users22:54:410
193819912429,0cyclictest28072-21grep19:34:190
193819912333,0cyclictest9219-21memory20:14:180
193819912330,0cyclictest32257-21chrt21:22:300
193819912330,0cyclictest10526-21expr21:53:510
193819912252,0cyclictest0-21swapper20:02:150
193819912239,0cyclictest0-21swapper22:13:090
193819912232,0cyclictest21243-21ntpq22:24:220
193819912232,0cyclictest12704-21ntp_offset20:24:250
193819912231,0cyclictest18729-21awk20:43:350
193819912230,0cyclictest9333-21/usr/sbin/munin23:24:250
193819912230,0cyclictest22889-21memory20:54:190
193819912230,0cyclictest16614-21chrt20:35:200
193819912131,0cyclictest21335-21/usr/sbin/munin23:59:330
193819912130,0cyclictest31944-21seq19:45:020
193819912130,0cyclictest19994-21runrttasks20:45:080
193819912129,0cyclictest6241-21/usr/sbin/munin20:04:340
193819912129,0cyclictest1976-21df21:28:500
193819912111,0cyclictest20072-21wc19:04:150
193819912049,0cyclictest12-21ksoftirqd/021:59:210
193819912039,0cyclictest17503-21/usr/sbin/munin23:49:030
193819912039,0cyclictest0-21swapper19:57:130
193819912032,0cyclictest9652-21uptime21:49:330
193819912032,0cyclictest30111-21grep00:24:360
193819912031,0cyclictest30546-21chrt21:17:270
193819912031,0cyclictest26943-21runrttasks19:31:020
193819912028,0cyclictest22067-21seq19:11:020
193819911944,0cyclictest12-21ksoftirqd/020:29:340
193819911938,0cyclictest457-21runrttasks21:24:110
193819911935,0cyclictest13630-21chrt23:38:360
193819911931,0cyclictest19312-21fw_conntrack22:19:040
193819911930,0cyclictest29406-21df_abs19:38:540
193819911928,0cyclictest26909-21seq21:05:490
193819911924,0cyclictest8045-21runrttasks20:10:160
193819911913,0cyclictest1441-21chrt19:52:080
193819911911,0cyclictest7719-21grep21:44:290
193819911839,0cyclictest28058-21/usr/sbin/munin22:44:230
193819911831,0cyclictest22728-21perl00:04:050
193819911828,0cyclictest7450irq/46-4a10000020:18:570
193819911827,0cyclictest24766-21seq19:23:060
193819911812,0cyclictest6377-21chrt23:15:210
193819911810,0cyclictest10841-21irqstats23:29:120
19381991179,0cyclictest32380-21seq00:33:330
193819911731,0cyclictest17863-21seq22:14:250
193819911711,0cyclictest14093-21grep23:39:010
193819911641,0cyclictest7350irq/45-4a10000019:14:380
193819911637,0cyclictest0-21swapper21:34:210
193819911633,0cyclictest2930-21runrttasks23:05:160
193819911626,0cyclictest23996-21runrttasks22:33:430
193819911624,0cyclictest16601-21runrttasks23:45:170
193819911611,0cyclictest26672-21threads00:14:360
193819911541,0cyclictest0-21swapper22:06:140
193819911531,0cyclictest3743-21/usr/sbin/munin23:08:520
193819911529,0cyclictest7795-21runrttasks23:19:290
193819911525,0cyclictest25781-21seq19:24:240
193819911434,0cyclictest0-21swapper23:54:020
193819911428,0cyclictest27410-21/usr/sbin/munin21:08:470
193819911346,0cyclictest7350irq/45-4a10000020:59:030
193819911325,0cyclictest503-21seq22:59:060
193819911312,0cyclictest29564-21fw_forwarded_lo22:49:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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