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2026-01-03 - 02:13
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Sat Jan 03, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74505400,0irq/46-4a10000012707-1kworker/u3:219:09:190
73501010,0irq/45-4a1000008951-21apt-get23:39:450
7450900,0irq/46-4a10000012142-21sendmail-msp20:40:150
916128914,0sleep013182-21cyclictest20:30:000
78412896,0sleep07845-21ntp_states20:25:280
7350890,0irq/45-4a10000011189-21/usr/sbin/munin20:35:190
186772890,0sleep012697-1kworker/u3:100:05:590
7450880,0irq/46-4a10000023582-21ntpq00:22:020
7450870,0irq/46-4a10000025266-21find22:51:290
7350870,0irq/45-4a10000028394-21chrt23:01:160
187072870,0chrt9228-1kworker/u3:119:22:560
13186998772,0cyclictest7350irq/45-4a10000019:59:480
7450860,0irq/46-4a1000007290-21wget21:59:490
7450860,0irq/46-4a10000028026-21sshd00:34:490
7450860,0irq/46-4a1000001664-21runrttasks23:17:030
7350860,0irq/45-4a10000020206-21sshd21:00:500
13186998652,0cyclictest0-21swapper19:52:040
99722859,0sleep09980-21users22:05:360
7450850,0irq/46-4a1000006287-21grep21:55:230
7450850,0irq/46-4a100000460-21snmpd00:00:450
7450850,0irq/46-4a1000003384-1kworker/u3:022:20:310
7450850,0irq/46-4a10000031960-21find23:10:250
7450850,0irq/46-4a10000024063-21sendmail-msp19:39:500
7450850,0irq/46-4a10000022506-21/usr/sbin/munin21:09:570
7450850,0irq/46-4a10000020665-21chrt22:38:510
7350850,0irq/45-4a10000021528-21meminfo22:40:240
7450840,0irq/46-4a1000005269-21cron20:19:280
7450840,0irq/46-4a100000460-21snmpd20:45:370
7450840,0irq/46-4a100000460-21snmpd19:54:580
7450840,0irq/46-4a10000030957-21munin-plugin-st21:34:280
7450840,0irq/46-4a10000026427-21fw_conntrack21:20:100
7450840,0irq/46-4a1000002364-21df_abs23:19:570
7450840,0irq/46-4a10000022731-21wget22:44:450
7450840,0irq/46-4a10000022682-1kworker/u3:219:35:410
7450840,0irq/46-4a10000021776-21zcat00:15:250
7450840,0irq/46-4a10000020826-21chrt21:04:440
7450840,0irq/46-4a10000018079-21ntpq20:55:220
7450840,0irq/46-4a10000016734-21chrt22:25:310
7450840,0irq/46-4a10000015804-21egrep20:49:500
7450840,0irq/46-4a10000011831-1kworker/u3:122:16:170
7350840,0irq/45-4a10000029565-21modprobe23:04:490
7350840,0irq/45-4a1000002025-21aten_r4power_en20:09:450
37642847,0sleep03755-21apt-get21:49:410
7450830,0irq/46-4a100000848-21grep20:05:140
7450830,0irq/46-4a1000007849-21meminfo23:35:130
7450830,0irq/46-4a100000460-21snmpd22:54:440
7450830,0irq/46-4a100000460-21snmpd19:44:460
7450830,0irq/46-4a10000032687-21sendmail-msp21:40:280
7450830,0irq/46-4a10000031052-21sort21:34:320
7450830,0irq/46-4a10000027979-21df_inode21:24:540
7450830,0irq/46-4a10000025804-21cron21:19:270
7450830,0irq/46-4a10000024882-21if_eth000:25:080
7450830,0irq/46-4a10000021217-21fw_packets19:30:070
7450830,0irq/46-4a10000020007-21ls19:25:300
7450830,0irq/46-4a10000019903-21ntp_kernel_err00:10:200
7450830,0irq/46-4a10000015372-21sed19:14:480
7350830,0irq/45-4a1000005525-21basename20:19:510
7350830,0irq/45-4a10000011334-21chrt23:45:200
55222830,0sleep02025-1kworker/u3:223:29:360
13186998356,0cyclictest0-21swapper22:09:340
7450820,0irq/46-4a1000005187-21runrttasks23:27:500
7450820,0irq/46-4a10000027639-21runrttasks00:34:220
7450820,0irq/46-4a10000014925-21fgrep23:55:250
7450820,0irq/46-4a10000014903-21service19:14:300
7450810,0irq/46-4a10000025840-1kworker/u3:121:44:330
7450810,0irq/46-4a10000018540-21runrttasks22:30:340
7450810,0irq/46-4a10000013458-21users23:50:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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