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2026-07-03 - 03:18
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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 all highest latencies:
System rack4slot2.osadl.org (updated Fri Jul 03, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a10000014445-21/usr/sbin/munin19:04:520
73501020,0irq/45-4a10000029910-21/usr/sbin/munin21:25:450
7450960,0irq/46-4a1000003860-21sendmail-msp23:20:350
7450960,0irq/46-4a10000019944-21df19:19:390
7450950,0irq/46-4a1000009675-21seq20:24:360
7450950,0irq/46-4a10000029932-21perl00:34:570
7450950,0irq/46-4a10000025220-21missed_timers22:45:250
7450950,0irq/46-4a10000021145-21egrep00:09:350
7450940,0irq/46-4a1000008835-21sshd23:33:450
293732940,0sleep023061-1kworker/u3:221:20:570
217592940,0sleep021255-1kworker/u3:120:59:550
7450930,0irq/46-4a10000031690-21aten_r4power_po21:29:380
7450930,0irq/46-4a10000031638-21df_inode23:04:590
7450930,0irq/46-4a10000028720-21fw_conntrack19:44:550
7450930,0irq/46-4a1000002852-21/usr/sbin/munin21:40:030
7450930,0irq/46-4a10000028325-21fschecks_time22:55:000
7450930,0irq/46-4a10000026451-21sendmail-msp19:40:160
7450930,0irq/46-4a10000026381-21latency_hist21:14:260
7450930,0irq/46-4a10000018128-21seq22:24:590
7450930,0irq/46-4a10000014790-21memory23:50:150
7450930,0irq/46-4a1000001402-21fw_packets20:00:020
7450920,0irq/46-4a1000007653-21sendmail-msp20:19:250
7450920,0irq/46-4a1000005398-21users20:10:250
7450920,0irq/46-4a10000032492-21gzip19:55:210
7450920,0irq/46-4a1000003111-21ls20:04:590
7450920,0irq/46-4a10000027059-21/usr/sbin/munin21:15:090
7450920,0irq/46-4a10000026451-21sendmail-msp19:39:250
7450920,0irq/46-4a10000025040-21meminfo00:20:200
7450920,0irq/46-4a10000023979-21mailstats19:30:200
7450920,0irq/46-4a10000023745-21/usr/sbin/munin21:05:130
7450920,0irq/46-4a10000022344-21/usr/sbin/munin19:25:220
7450920,0irq/46-4a10000018998-21/usr/sbin/munin19:15:420
7450920,0irq/46-4a10000017479-21sendmail-msp00:01:450
7450920,0irq/46-4a10000016196-21diskstats23:54:560
7450920,0irq/46-4a10000014470-21sendmail-msp20:39:230
7450920,0irq/46-4a10000010997-21df23:39:520
241062920,0sleep016005-1kworker/u3:222:41:500
15615999261,0cyclictest0-21swapper22:22:460
7450910,0irq/46-4a1000009536-21df21:59:490
7450910,0irq/46-4a1000009471-21fschecks_time23:34:570
7450910,0irq/46-4a1000006130-21df21:49:460
7450910,0irq/46-4a10000031491-21chrt19:54:070
7450910,0irq/46-4a10000027776-21ls00:29:260
7450910,0irq/46-4a1000002705-21runrttasks23:14:560
7450910,0irq/46-4a10000026887-21/usr/sbin/munin00:25:280
7450910,0irq/46-4a10000026285-21/usr/sbin/munin22:49:360
7450910,0irq/46-4a10000022142-1kworker/u3:000:16:100
7450910,0irq/46-4a10000020012-21chrt20:54:450
7450910,0irq/46-4a10000019937-21runrttasks22:30:180
7450910,0irq/46-4a10000016327-21/usr/sbin/munin20:44:310
7450910,0irq/46-4a10000015716-21/usr/sbin/munin19:10:190
7450910,0irq/46-4a10000014074-21wc23:49:240
155372910,0sleep014476-1kworker/u3:120:40:250
7450900,0irq/46-4a100000960-21tune2fs23:09:510
7450900,0irq/46-4a1000008630-21timerwakeupswit21:55:380
7450900,0irq/46-4a1000008228-21fw_forwarded_lo20:19:590
7450900,0irq/46-4a1000004973-21ntpq21:45:370
7450900,0irq/46-4a100000438-21snmpd22:07:250
7450900,0irq/46-4a1000003860-21sendmail-msp23:24:320
7450900,0irq/46-4a10000030540-21sendmail_mailtr23:00:490
7450900,0irq/46-4a10000019853-21/usr/sbin/munin00:05:130
7450900,0irq/46-4a10000018818-21/usr/sbin/munin20:50:230
7450900,0irq/46-4a10000014591-21cstates22:14:430
7450900,0irq/46-4a10000011465-21df_inode20:29:440
7450890,0irq/46-4a10000022397-21seq22:36:420
7450890,0irq/46-4a10000013007-21diskstats22:09:520
7450890,0irq/46-4a1000001178-21runrttasks21:34:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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