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2026-01-07 - 15:34
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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 highest latencies:
System rack4slot2.osadl.org (updated Wed Jan 07, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502570,0irq/46-4a10000011388-1kworker/u3:207:06:100
7450970,0irq/46-4a10000020075-21ntp_states09:00:110
7450960,0irq/46-4a10000031486-21runrttasks11:09:300
7350960,0irq/45-4a10000012329-1kworker/u3:208:41:190
7450950,0irq/46-4a1000005304-21runrttasks08:17:510
7450950,0irq/46-4a10000025832-21users12:25:210
7450950,0irq/46-4a10000019847-21irqstats07:25:350
7450950,0irq/46-4a10000011309-21irqstats08:34:580
7450940,0irq/46-4a100000819-21/usr/sbin/munin11:14:350
7450940,0irq/46-4a1000008144-21/usr/sbin/munin10:00:070
7450940,0irq/46-4a1000008031-21grep11:34:480
7450940,0irq/46-4a1000004646-21meminfo09:50:020
7450940,0irq/46-4a10000031252-21seq07:59:300
7450940,0irq/46-4a10000030363-21mailstats07:55:160
7450940,0irq/46-4a1000003006-21kernelversion11:20:020
7450940,0irq/46-4a10000030028-21tune2fs09:29:480
7450940,0irq/46-4a10000029131-21sshd09:26:100
7450940,0irq/46-4a10000028826-21ntpq11:00:570
7450940,0irq/46-4a10000026054-21ls07:44:210
7450940,0irq/46-4a10000023429-21/usr/sbin/munin12:19:480
7450940,0irq/46-4a10000020117-21interrupts12:09:560
7450940,0irq/46-4a10000017693-21aten_r4power_en08:54:340
7450940,0irq/46-4a10000011559-21/usr/sbin/munin10:10:070
7350940,0irq/45-4a10000016496-21diskstats11:59:450
2339329411,0sleep023391-21irqstats09:10:360
13382999457,0cyclictest0-21swapper09:45:000
7450930,0irq/46-4a1000007429-21wget08:24:340
7450930,0irq/46-4a1000005868-21/usr/sbin/munin11:29:460
7450930,0irq/46-4a10000030603-21rt-features11:05:190
7450930,0irq/46-4a10000026887-21fschecks_time12:29:490
7450930,0irq/46-4a10000024843-21perl07:39:520
7450930,0irq/46-4a10000024629-21/usr/sbin/munin10:49:270
7450930,0irq/46-4a10000023421-21cat10:44:570
7450930,0irq/46-4a10000023113-21/usr/sbin/munin07:34:520
7450930,0irq/46-4a10000019808-21/usr/sbin/munin10:34:460
7450930,0irq/46-4a10000015299-21switchtime10:20:180
7450930,0irq/46-4a10000015242-21sed07:14:220
7450930,0irq/46-4a10000014903-21fw_conntrack11:54:520
7450930,0irq/46-4a10000013339-21seq11:50:010
7450930,0irq/46-4a1000001243-21memory09:40:070
7450930,0irq/46-4a10000011217-21cstates11:44:360
7450920,0irq/46-4a1000009815-21memory10:05:070
7450920,0irq/46-4a1000009622-21df_inode11:39:400
7450920,0irq/46-4a10000028644-21fw_packets12:34:550
7450920,0irq/46-4a10000027760-21sed07:49:200
7450920,0irq/46-4a10000026836-21meminfo09:20:010
7450920,0irq/46-4a10000024512-21runrttasks09:14:350
7450920,0irq/46-4a10000022299-21runrttasks09:06:260
7450920,0irq/46-4a10000021516-21runrttasks10:39:420
7450920,0irq/46-4a10000020987-21wget07:29:360
7450920,0irq/46-4a10000018722-21/usr/sbin/munin10:30:190
7450920,0irq/46-4a10000018540-21runrttasks12:05:060
7450920,0irq/46-4a10000017963-21perl07:19:500
7450910,0irq/46-4a1000009041-21latency_hist08:29:200
7450910,0irq/46-4a1000006889-21runrttasks09:55:430
7450910,0irq/46-4a1000006067-21runrttasks08:19:500
7450910,0irq/46-4a1000005046-21mailstats11:25:160
7450910,0irq/46-4a10000027109-21/usr/sbin/munin10:55:140
7450910,0irq/46-4a10000022939-21ls12:19:200
7450910,0irq/46-4a1000002251-21aten_r4power_en08:09:330
7450910,0irq/46-4a10000017050-21timerandwakeup10:25:190
7450910,0irq/46-4a10000015950-21runrttasks08:49:320
7450910,0irq/46-4a10000015832-21apt07:14:460
7450910,0irq/46-4a10000014686-21fw_forwarded_lo08:44:530
7450910,0irq/46-4a10000013077-21fw_forwarded_lo10:14:540
7450900,0irq/46-4a10000031673-21diskstats09:34:450
7450890,0irq/46-4a100000751-21df_abs08:04:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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