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2026-09-16 - 08:02
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Wed Sep 16, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502150,0irq/46-4a10000016595-1kworker/u3:019:08:510
16803998468,0cyclictest19331-21/usr/sbin/munin22:24:580
16803998256,0cyclictest0-21swapper00:29:590
16803998251,0cyclictest0-21swapper00:04:580
16803997852,0cyclictest0-21swapper20:10:030
16803997758,0cyclictest28738-21switchtime00:25:400
16803997753,0cyclictest27307-21runrttasks22:46:520
16803997655,0cyclictest32396-21runrttasks19:51:570
16803997556,0cyclictest17861-21/usr/sbin/munin23:55:100
16803997460,0cyclictest29719-21/usr/sbin/munin21:20:070
16803997455,0cyclictest19858-21/usr/sbin/munin20:50:310
16803997453,0cyclictest0-21swapper22:50:060
16803997348,0cyclictest24827-21fw_packets21:05:190
16803997345,0cyclictest0-21swapper23:29:020
16803997337,0cyclictest12752-21diskstats23:40:130
16803997257,0cyclictest4281-21fschecks_time21:40:160
16803997253,0cyclictest25709-21runrttasks19:33:100
16803997251,0cyclictest24704-21seq22:40:120
16803997248,0cyclictest29783-21diskstats19:45:110
16803997246,0cyclictest0-21swapper23:10:230
16803997155,0cyclictest26572-21fschecks_time00:20:170
16803997153,0cyclictest1615-21runrttasks19:56:420
16803997150,0cyclictest4742-21sensors20:05:420
16803997056,0cyclictest7350irq/45-4a10000023:30:040
16803997053,0cyclictest31900-21ntp_offset21:25:360
16803997052,0cyclictest8470-21runrttasks21:51:420
16803997052,0cyclictest12305-21modprobe23:39:470
16803997051,0cyclictest29368-21seq19:44:490
16803997047,0cyclictest17443-21sendmail-msp22:20:070
16803997035,0cyclictest9377-21fschecks_count20:20:170
16803996949,0cyclictest18795-21runrttasks20:47:160
16803996948,0cyclictest8600-21runrttasks20:17:520
16803996948,0cyclictest7034-21runrttasks21:48:530
16803996947,0cyclictest28998-21runrttasks21:16:560
16803996947,0cyclictest19647-21fschecks_time19:15:330
16803996947,0cyclictest10148-21runrttasks21:56:280
16803996945,0cyclictest26725-21/usr/sbin/munin21:10:340
16803996945,0cyclictest17229-21runrttasks19:10:120
16803996944,0cyclictest0-21swapper22:32:010
16803996852,0cyclictest32742-21runrttasks23:04:270
16803996850,0cyclictest14610-21if_eth022:10:230
16803996849,0cyclictest22873-21seq22:35:020
16803996846,0cyclictest17379-21runrttasks23:54:340
16803996846,0cyclictest16959-21runrttasks20:41:110
16803996846,0cyclictest12998-21memory20:30:300
16803996846,0cyclictest11154-21fw_forwarded_lo20:25:200
16803996846,0cyclictest0-21swapper22:04:560
16803996843,0cyclictest27607-21cron19:39:470
16803996837,0cyclictest14306-21df20:35:020
16803996833,0cyclictest5813-21seq23:20:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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