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2026-05-13 - 07:28
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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 Wed May 13, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509800,0irq/46-4a10000015430-1kworker/u3:219:02:570
7450960,0irq/46-4a10000024640-21chrt20:57:470
7450950,0irq/46-4a1000008564-21/usr/sbin/munin23:20:130
7450950,0irq/46-4a1000007764-21latency_hist21:44:260
7350940,0irq/45-4a10000025591-21meminfo22:35:080
7450930,0irq/46-4a1000009964-21fschecks_count21:49:540
7450930,0irq/46-4a1000006945-21/usr/sbin/munin23:15:170
7450930,0irq/46-4a10000031519-1kworker/u3:022:59:350
7450930,0irq/46-4a10000030439-21fschecks_count22:49:520
7450930,0irq/46-4a10000030322-21seq21:14:410
7450930,0irq/46-4a10000028689-21df_inode19:34:430
7450930,0irq/46-4a10000024628-1kworker/u3:021:00:100
7450930,0irq/46-4a10000022096-21irqstats00:00:030
7450930,0irq/46-4a10000016684-21df_abs22:09:440
7450920,0irq/46-4a100000605-21seq00:31:530
7450920,0irq/46-4a1000005171-21/usr/sbin/munin21:35:150
7450920,0irq/46-4a1000005027-21grep23:10:050
7450920,0irq/46-4a1000004344-21munin-run21:34:270
7450920,0irq/46-4a1000003357-21meminfo23:05:070
7450920,0irq/46-4a10000032267-21fw_conntrack22:54:590
7450920,0irq/46-4a10000031921-21chrt19:44:400
7450920,0irq/46-4a10000030117-1kworker/u3:000:27:340
7450920,0irq/46-4a10000028929-21seq21:10:060
7450920,0irq/46-4a10000027148-21sshd21:05:030
7450920,0irq/46-4a10000026610-21wc19:29:290
7450920,0irq/46-4a10000024309-21sed00:05:280
7450920,0irq/46-4a10000023878-21meminfo19:20:080
7450920,0irq/46-4a10000021552-21/usr/sbin/munin20:50:000
7450920,0irq/46-4a10000017994-21fw_forwarded_lo19:04:580
7450920,0irq/46-4a10000013459-21fw_forwarded_lo20:24:560
7450920,0irq/46-4a10000011315-21/usr/sbin/munin20:20:200
7450910,0irq/46-4a1000008151-21df_abs20:09:450
7450910,0irq/46-4a1000007632-1kworker/u3:021:48:440
7450910,0irq/46-4a1000004199-1kworker/u3:221:54:440
7450910,0irq/46-4a10000030712-21chrt19:40:080
7450910,0irq/46-4a10000029041-21chrt22:45:120
7450910,0irq/46-4a10000022372-21sendmail_mailqu22:25:180
7450910,0irq/46-4a10000020159-21/usr/sbin/munin20:44:500
7450910,0irq/46-4a10000018592-21chrt20:39:540
7450910,0irq/46-4a10000016660-21df20:34:450
7450910,0irq/46-4a1000001502-21fw_forwarded_lo19:49:570
7450910,0irq/46-4a10000015018-21diskstats20:29:470
7450910,0irq/46-4a10000012836-1kworker/u3:023:37:490
7450910,0irq/46-4a10000012135-21mailstats23:30:190
7450900,0irq/46-4a1000004357-21awk19:59:270
7450900,0irq/46-4a10000032028-21/usr/sbin/munin21:19:430
7450900,0irq/46-4a10000029112-21ntp_offset00:20:160
7450900,0irq/46-4a10000028048-21chrt00:17:340
7450900,0irq/46-4a10000027048-21fschecks_count19:29:520
7450900,0irq/46-4a10000026859-21cpuspeed22:39:400
7450900,0irq/46-4a10000025485-21if_eth000:10:010
7450900,0irq/46-4a10000023316-21wget22:29:380
7450900,0irq/46-4a10000020172-21diskstats23:54:480
7450900,0irq/46-4a10000020106-21df_abs22:19:430
7450900,0irq/46-4a1000001505-21fw_conntrack21:24:570
7450900,0irq/46-4a10000013463-21fw_conntrack21:59:560
7450900,0irq/46-4a10000010619-21/usr/sbin/munin20:15:260
7450900,0irq/46-4a10000010240-21/usr/sbin/munin23:25:110
199032900,0chrt18983-1kworker/u3:019:09:560
7450890,0irq/46-4a1000005715-21chrt20:01:460
7450890,0irq/46-4a10000019027-21cat23:50:200
7450890,0irq/46-4a10000018153-21/usr/sbin/munin22:15:140
7450890,0irq/46-4a10000016425-21/usr/sbin/munin23:45:210
7450890,0irq/46-4a10000015166-21fw_forwarded_lo22:04:580
7450890,0irq/46-4a10000014935-21df23:39:420
7450880,0irq/46-4a1000006482-21diskstats20:04:500
7450880,0irq/46-4a10000022186-21missed_timers19:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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