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2026-05-23 - 12:41
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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 Sat May 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012970,0irq/46-4a10000026919-1kworker/u3:219:00:360
305999913146,0cyclictest27465-21/usr/sbin/munin23:34:350
305999913043,0cyclictest32646-21munin-node19:09:150
305999912533,0cyclictest27863-21threads20:24:570
305999912532,0cyclictest10536-21memory00:19:440
305999912532,0cyclictest10505-21memory22:44:440
305999912412,0cyclictest28636-21/usr/sbin/munin22:04:110
305999912335,0cyclictest14934-21grep22:59:050
305999912331,0cyclictest21585-21runrttasks20:08:350
305999912241,0cyclictest20564-21fschecks_time23:14:290
305999912233,0cyclictest8207-21mailstats19:29:520
305999912233,0cyclictest7261-21/usr/sbin/munin20:59:550
305999912229,0cyclictest25831-21runrttasks20:19:430
305999912213,0cyclictest4283-21diskstats19:19:230
305999912211,0cyclictest8809-21memory22:39:450
305999912211,0cyclictest31411-21chrt19:04:510
305999912141,0cyclictest0-21swapper21:29:160
305999912140,0cyclictest12488-21sensors22:49:550
305999912133,0cyclictest6559-21sensors19:24:570
305999912131,0cyclictest24094-21irqstats23:24:360
305999912131,0cyclictest19600-21runrttasks21:36:030
305999912130,0cyclictest30401-21/usr/sbin/munin22:09:140
305999912034,0cyclictest32374-21diskstats20:39:250
305999912033,0cyclictest31635-21runrttasks20:36:400
305999912029,0cyclictest27233-21df_inode21:59:210
305999912028,0cyclictest29928-21runrttasks20:31:510
305999912028,0cyclictest18893-21fw_forwarded_lo23:09:330
305999912027,0cyclictest10966-21cpu19:39:150
305999911937,0cyclictest22172-21df_inode23:19:230
305999911935,0cyclictest9359-21df_abs19:34:220
305999911932,0cyclictest8086-21munin-run00:14:020
305999911932,0cyclictest19129-21hostname20:02:190
305999911928,0cyclictest31548-21runrttasks23:45:320
305999911926,0cyclictest13942-21chrt00:29:440
305999911912,0cyclictest1658-21diskstats22:19:230
305999911911,0cyclictest22089-21df_inode20:09:220
305999911838,0cyclictest4796-21aten_r4power_cu00:04:120
305999911831,0cyclictest2594-21forks19:14:270
305999911831,0cyclictest16907-21cstates23:04:170
305999911829,0cyclictest29376-21ntp_kernel_pll_23:39:470
305999911823,0cyclictest12566-21aten_r4power_po19:44:130
305999911812,0cyclictest25920-21/usr/sbin/munin23:29:440
305999911733,0cyclictest11938-21fschecks_count21:14:290
305999911731,0cyclictest16146-21runrttasks21:25:510
305999911730,0cyclictest20748-21/usr/sbin/munin21:39:480
305999911729,0cyclictest1064-21seq23:52:470
305999911728,0cyclictest24595-21seq21:50:060
305999911726,0cyclictest9432-21sshd00:16:080
305999911723,0cyclictest24901-21seq20:17:320
305999911722,0cyclictest17493-21runrttasks19:59:020
305999911712,0cyclictest15197-21timerwakeupswit19:49:570
305999911636,0cyclictest10016-21cstates21:09:160
305999911635,0cyclictest302-21/usr/sbin/munin22:14:480
305999911628,0cyclictest6099-1kworker/u3:222:36:210
305999911628,0cyclictest1537-21df20:44:340
305999911627,0cyclictest4351-21chrt20:52:140
305999911535,0cyclictest2349-21timerandwakeup23:54:580
305999911527,0cyclictest5975-21runrttasks20:56:250
305999911526,0cyclictest24974-1kworker/u3:221:55:090
305999911525,0cyclictest3332-21chrt23:59:200
305999911442,0cyclictest0-21swapper00:26:420
305999911437,0cyclictest5983-21runrttasks22:31:050
305999911430,0cyclictest15541-21if_eth022:59:380
305999911411,0cyclictest8821-21ntp_offset21:04:490
305999911326,0cyclictest9459-1kworker/u3:221:23:580
305999911326,0cyclictest22022-21grep21:44:200
305999911224,0cyclictest3224-21cpu22:24:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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