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2026-05-17 - 01:47
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Sun May 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502710,0irq/46-4a10000028355-1kworker/u3:018:59:250
312209912455,0cyclictest7350irq/45-4a10000020:00:110
312209912344,0cyclictest25701-21/usr/sbin/munin20:19:560
312209912239,0cyclictest3219-21df_inode23:59:370
312209912135,0cyclictest5062-21/usr/sbin/munin19:19:510
312209912042,0cyclictest5664-21awk20:55:160
312209912041,0cyclictest27379-21/usr/sbin/munin21:59:540
312209912036,0cyclictest8051-21/usr/sbin/munin00:15:160
312209912033,0cyclictest22704-21grep20:10:140
312209912031,0cyclictest23689-21chrt21:49:400
312209912030,0cyclictest21082-21runrttasks23:15:220
312209911941,0cyclictest0-21swapper19:27:480
312209911932,0cyclictest16398-21runrttasks23:04:090
312209911840,0cyclictest0-21swapper22:16:430
312209911839,0cyclictest7336-21unixbench_singl22:35:140
312209911839,0cyclictest13525-21grep19:44:430
312209911838,0cyclictest1850-21/usr/sbin/munin23:54:590
312209911838,0cyclictest12390-21timerandwakeup22:50:140
312209911831,0cyclictest27108-21diskstats20:24:400
312209911831,0cyclictest19902-21latency_hist23:14:190
312209911830,0cyclictest31786-21fw_forwarded_lo19:04:500
312209911827,0cyclictest12540-21chrt19:40:320
312209911738,0cyclictest6817-21if_eth000:09:510
312209911733,0cyclictest9691-21date19:34:210
312209911733,0cyclictest25405-21/usr/sbin/munin23:29:370
312209911732,0cyclictest17037-21if_err_eth019:54:490
312209911730,0cyclictest1372-21/usr/sbin/munin22:19:330
312209911729,0cyclictest6621-21diskstats20:59:420
312209911712,0cyclictest10323-21chrt21:10:020
312209911633,0cyclictest16912-21sort23:04:430
312209911632,0cyclictest31034-21zcat20:35:090
312209911631,0cyclictest15280-21runrttasks19:49:460
312209911629,0cyclictest3499-21runrttasks19:15:000
312209911628,0cyclictest13758-21/usr/sbin/munin00:29:570
312209911536,0cyclictest2907-21aten_r4power_cu20:49:280
312209911532,0cyclictest28770-21df_abs23:39:360
312209911530,0cyclictest32446-21if_eth023:49:510
312209911530,0cyclictest21485-21chrt20:09:040
312209911530,0cyclictest19121-21/usr/sbin/munin21:35:100
312209911528,0cyclictest20828-21sendmail_mailtr21:40:090
312209911527,0cyclictest24807-21seq23:28:040
312209911511,0cyclictest484-21runrttasks22:47:160
312209911445,0cyclictest12-21ksoftirqd/022:04:330
312209911442,0cyclictest0-21swapper00:06:080
312209911441,0cyclictest7350irq/45-4a10000021:29:410
312209911436,0cyclictest30536-21forks22:09:420
312209911434,0cyclictest4476-21ls22:29:170
312209911433,0cyclictest30259-21/usr/sbin/munin23:44:270
312209911428,0cyclictest1864-21ntp_states20:45:030
312209911427,0cyclictest32050-21wget20:39:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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