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2026-08-23 - 05:21
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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 Sun Aug 23, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010000,0irq/46-4a10000017520-1kworker/u3:019:05:240
194779912832,0cyclictest24679-21grep19:20:370
194779912747,0cyclictest12-21ksoftirqd/019:39:520
194779912643,0cyclictest20489-21fschecks_count22:19:560
194779912329,0cyclictest14773-1kworker/u3:120:35:220
194779912230,0cyclictest25771-21chrt19:24:570
194779912044,0cyclictest17162-21/usr/sbin/munin22:09:560
194779912037,0cyclictest0-21swapper21:22:540
194779912036,0cyclictest22277-21fw_conntrack00:00:020
194779912034,0cyclictest4639-21/usr/sbin/munin21:34:250
194779912033,0cyclictest27312-21diskstats19:29:450
194779912033,0cyclictest24658-21seq20:55:300
194779912030,0cyclictest13786-21seq20:24:560
194779912011,0cyclictest18758-21/usr/sbin/munin20:39:480
194779911939,0cyclictest31259-21mailstats21:15:200
194779911939,0cyclictest0-21swapper22:34:480
194779911938,0cyclictest9926-21aten_r4power_en21:49:330
194779911937,0cyclictest20569-21fschecks_time20:44:520
194779911934,0cyclictest29988-21runrttasks22:47:260
194779911932,0cyclictest454-21snmpd20:22:290
194779911912,0cyclictest13823-21/usr/sbin/munin22:00:080
194779911851,0cyclictest0-21swapper21:02:530
194779911849,0cyclictest7350irq/45-4a10000023:00:410
194779911838,0cyclictest15196-21df23:39:460
194779911836,0cyclictest25135-21modprobe22:34:240
194779911831,0cyclictest1703-21tune2fs21:24:490
194779911831,0cyclictest1452-21/usr/sbin/munin00:34:390
194779911745,0cyclictest7350irq/45-4a10000020:00:140
194779911732,0cyclictest4273-21chrt19:56:220
194779911645,0cyclictest7350irq/45-4a10000000:19:360
194779911643,0cyclictest0-21swapper22:55:090
194779911641,0cyclictest14531-21runrttasks23:37:020
194779911638,0cyclictest0-21swapper22:39:350
194779911637,0cyclictest28722-21aten_r4power_en21:09:340
194779911636,0cyclictest29007-21df_abs19:34:430
194779911633,0cyclictest12955-21sshd23:33:100
194779911632,0cyclictest31506-21runrttasks00:26:040
194779911631,0cyclictest10473-21ls23:25:070
194779911627,0cyclictest12677-21awk21:55:320
194779911538,0cyclictest454-21snmpd23:58:580
194779911533,0cyclictest7858-21seq20:07:430
194779911532,0cyclictest31025-21ntpq22:50:110
194779911530,0cyclictest32370-21df_abs19:44:420
194779911511,0cyclictest16431-21sshd22:08:170
194779911511,0cyclictest15533-21runrttasks20:29:570
194779911443,0cyclictest0-21swapper19:14:590
194779911434,0cyclictest9073-21sensors21:45:200
194779911434,0cyclictest23536-21aten_r4power_cu00:04:340
194779911432,0cyclictest2771-21runrttasks19:53:050
194779911428,0cyclictest986-21chrt00:33:080
194779911428,0cyclictest8464-21/usr/sbin/munin23:19:500
194779911427,0cyclictest9490-21seq20:12:150
194779911427,0cyclictest6365-21sendmail-msp21:39:420
194779911427,0cyclictest19689-21seq23:52:190
194779911427,0cyclictest19475-21cyclictest20:52:110
194779911411,0cyclictest21280-21ls19:14:260
194779911334,0cyclictest4878-21/usr/sbin/munin21:34:370
194779911334,0cyclictest10652-21ps20:15:130
194779911332,0cyclictest4030-21timerwakeupswit23:05:240
194779911315,0cyclictest16973-21df_inode23:44:430
194779911313,0cyclictest27287-21/usr/sbin/munin21:04:440
194779911311,0cyclictest27323-21tune2fs00:14:520
194779911311,0cyclictest25516-21/usr/sbin/munin00:09:460
194779911130,0cyclictest6104-21seq23:12:580
194779911116,0cyclictest6871-21fw_conntrack23:14:530
194779911113,0cyclictest22277-21cut22:24:520
194779911025,0cyclictest19750-21seq22:17:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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