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2025-12-22 - 11:36
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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 Mon Dec 22, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502090,0irq/45-4a100000308-21/usr/sbin/munin19:05:530
7450950,0irq/46-4a1000009794-21/usr/sbin/munin00:15:520
7450950,0irq/46-4a100000460-21snmpd00:06:200
7450950,0irq/46-4a10000014640-21/usr/sbin/munin19:45:240
7450950,0irq/46-4a10000011612-21/usr/sbin/munin22:45:170
7350950,0irq/45-4a10000016340-1kworker/u3:221:45:550
7450940,0irq/46-4a1000008440-21fw_conntrack22:35:320
7450940,0irq/46-4a1000008088-21cstates21:00:190
7450940,0irq/46-4a1000003594-21ntp_kernel_err23:55:450
7450940,0irq/46-4a10000028543-21sshd23:35:100
7450940,0irq/46-4a10000023283-21sendmail-msp23:20:210
7450940,0irq/46-4a10000023008-21runrttasks23:18:030
7450940,0irq/46-4a10000021476-21sendmail-msp21:40:300
7450940,0irq/46-4a10000019754-21chrt23:09:270
7450940,0irq/46-4a10000019041-21timerandwakeup19:55:580
7450940,0irq/46-4a10000018881-21memory21:31:370
7450940,0irq/46-4a1000001843-21/usr/sbin/munin20:41:490
7450940,0irq/46-4a1000001723-21meminfo22:15:440
7450940,0irq/46-4a10000013771-21sendmail_mailqu19:40:580
7450940,0irq/46-4a10000013253-21sshd00:25:090
7450940,0irq/46-4a10000012122-21grep00:20:460
7350940,0irq/45-4a10000028906-21fw_conntrack22:00:360
7350940,0irq/45-4a10000026526-21sendmail-msp20:20:330
7450930,0irq/46-4a100000972-21apt22:14:550
7450930,0irq/46-4a1000009670-21cpu19:30:150
7450930,0irq/46-4a1000008094-21sshd00:10:090
7450930,0irq/46-4a1000008015-21df19:25:180
7450930,0irq/46-4a1000006511-21cut20:55:280
7450930,0irq/46-4a1000006323-21runrttasks22:30:130
7450930,0irq/46-4a1000005748-21runrttasks20:52:470
7450930,0irq/46-4a1000004782-21df22:25:170
7450930,0irq/46-4a100000460-21snmpd23:30:580
7450930,0irq/46-4a100000460-21snmpd22:09:550
7450930,0irq/46-4a10000030655-1kworker/u3:119:12:470
7450930,0irq/46-4a10000020504-21ntp_states20:00:540
7450930,0irq/46-4a10000019967-21sshd23:10:100
7450930,0irq/46-4a10000017554-21grep00:35:580
7450930,0irq/46-4a10000016697-21df_abs21:25:200
7450930,0irq/46-4a10000014622-21sendmail-msp21:19:560
7450930,0irq/46-4a1000001434-21expr23:50:170
7450930,0irq/46-4a1000001128-21ls23:49:570
63942930,0chrt5967-1kworker/u3:219:20:240
289782930,0chrt28829-1kworker/u3:120:25:460
7450920,0irq/46-4a1000009584-21sendmail-msp22:40:200
7450920,0irq/46-4a1000005160-21/usr/sbin/munin19:16:110
7450920,0irq/46-4a1000004989-21df_inode00:00:260
7450920,0irq/46-4a1000003830-21timerandwakeup22:21:040
7450920,0irq/46-4a10000031983-21cat20:35:190
7450920,0irq/46-4a10000031125-21users20:30:580
7450920,0irq/46-4a10000025467-21fw_conntrack21:50:330
7450920,0irq/46-4a10000025121-21runrttasks23:25:060
7450920,0irq/46-4a10000020214-21forks21:35:310
7450920,0irq/46-4a10000016428-21sendmail-msp23:00:160
7450920,0irq/46-4a10000016184-21runrttasks22:58:170
7450920,0irq/46-4a10000014777-21aten_r4power_cu21:20:100
7450920,0irq/46-4a10000013581-21fw_forwarded_lo22:50:360
7450920,0irq/46-4a10000011682-21tune2fs21:10:280
7450910,0irq/46-4a1000003353-21meminfo20:45:420
7450910,0irq/46-4a10000030137-21sendmail-msp23:40:090
7450910,0irq/46-4a10000024043-21sendmail_mailst20:10:570
7450910,0irq/46-4a10000016342-21/usr/sbin/munin19:50:450
7450910,0irq/46-4a10000011523-21df_inode19:35:220
7450910,0irq/46-4a10000010587-21timerwakeupswit21:06:030
7450900,0irq/46-4a10000026706-21/usr/sbin/munin21:55:370
7450900,0irq/46-4a10000025452-21irqstats20:15:390
7450900,0irq/46-4a10000021533-21wget20:05:100
7450900,0irq/46-4a10000016043-21/usr/sbin/munin00:31:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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