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2026-05-19 - 06:34
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Tue May 19, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502540,0irq/46-4a10000031387-1kworker/u3:219:03:340
7450960,0irq/46-4a1000009059-21grep00:14:560
7450960,0irq/46-4a1000007680-21timerandwakeup22:35:060
7450960,0irq/46-4a10000027515-21df_inode21:59:310
225022960,0sleep014814-1kworker/u3:120:09:390
7450950,0irq/46-4a10000025717-21runrttasks20:19:260
7450940,0irq/46-4a10000022350-21df21:44:290
7450940,0irq/46-4a1000001901-21df_inode23:54:330
7450940,0irq/46-4a10000015158-21sendmail-msp00:34:120
7450940,0irq/46-4a10000014968-1kworker/u3:221:28:270
7450940,0irq/46-4a10000012452-21missed_timers00:24:550
20592948,0sleep02062-21fw_conntrack19:10:020
7450930,0irq/46-4a1000009479-21/usr/sbin/munin21:05:120
7450930,0irq/46-4a1000006728-21aten_r4power_cu00:09:220
7450930,0irq/46-4a1000005317-21diskstats22:29:360
7450930,0irq/46-4a10000028560-21runrttasks23:37:210
7450930,0irq/46-4a10000027426-21runrttasks20:24:290
7450930,0irq/46-4a10000021193-21sendmail_mailst20:05:060
7450930,0irq/46-4a10000017488-21irqstats19:54:490
7450930,0irq/46-4a10000017402-21fw_conntrack23:04:420
7450930,0irq/46-4a10000015055-21runrttasks21:23:420
7450930,0irq/46-4a10000014281-21/usr/sbin/munin22:55:040
7450930,0irq/46-4a10000012905-21seq19:40:120
7450930,0irq/46-4a10000011374-1kworker/u3:221:16:530
7450920,0irq/46-4a1000005619-21memory19:19:560
7450920,0irq/46-4a1000005327-21/usr/sbin/munin20:54:390
7450920,0irq/46-4a1000003848-21/usr/sbin/munin23:59:510
7450920,0irq/46-4a1000003752-21fw_forwarded_lo22:24:430
7450920,0irq/46-4a10000032649-21swap19:05:080
7450920,0irq/46-4a10000032628-21df_inode23:49:300
7450920,0irq/46-4a10000032541-21/usr/sbin/munin22:14:250
7450920,0irq/46-4a10000032193-21cron22:14:100
7450920,0irq/46-4a10000031345-21open_files23:45:030
7450920,0irq/46-4a10000029977-21uptime20:30:110
7450920,0irq/46-4a10000029467-21kernelversion23:39:530
7450920,0irq/46-4a10000029091-21/usr/sbin/munin22:04:260
7450920,0irq/46-4a10000025722-21expr21:54:300
7450920,0irq/46-4a10000020875-21/usr/sbin/munin23:14:460
7450920,0irq/46-4a10000016068-21sendmail_mailst19:50:060
7450920,0irq/46-4a1000001451-21runrttasks20:44:110
7450920,0irq/46-4a10000012302-21fw_packets22:49:490
7450920,0irq/46-4a10000010611-21runrttasks22:44:450
7450920,0irq/46-4a10000010038-21ls19:34:150
268382920,0sleep025012-1kworker/u3:123:32:210
164762920,0sleep014832-1kworker/u3:223:01:220
7450910,0irq/46-4a1000006764-21wget19:24:240
7450910,0irq/46-4a1000004447-21runrttasks20:50:530
7450910,0irq/46-4a10000024489-21ntp_states21:50:000
7450910,0irq/46-4a10000024093-21df_inode20:14:290
7450910,0irq/46-4a10000023495-21runrttasks23:22:530
7450910,0irq/46-4a10000020986-21meminfo21:39:550
7450910,0irq/46-4a10000020274-21sendmail-msp23:14:130
7450910,0irq/46-4a10000019279-21runrttasks21:34:510
7450910,0irq/46-4a10000018978-21diskstats19:59:340
7450910,0irq/46-4a1000001632-21tr22:19:220
7450910,0irq/46-4a10000011374-1kworker/u3:221:12:230
7450910,0irq/46-4a10000011205-21vmstat19:35:140
182332910,0chrt16790-1kworker/u3:121:31:500
7450900,0irq/46-4a1000009033-21/usr/sbin/munin22:39:510
7450900,0irq/46-4a1000005950-21runrttasks00:05:110
7450900,0irq/46-4a1000004190-21/usr/sbin/munin19:15:050
7450900,0irq/46-4a10000030849-21df20:34:290
7450900,0irq/46-4a10000014348-21/usr/sbin/munin19:45:040
7450900,0irq/46-4a10000010603-21seq00:19:410
189029010,0sleep01891-21diskstats20:44:350
7450890,0irq/46-4a1000007323-21memory20:59:560
7450890,0irq/46-4a10000024159-21fschecks_count23:24:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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