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2026-03-18 - 15:14
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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 Wed Mar 18, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502680,0irq/46-4a1000003189-1kworker/u3:007:01:440
6181999554,0cyclictest0-21swapper11:02:280
7350920,0irq/45-4a1000008900-21runrttasks08:46:570
6181999258,0cyclictest0-21swapper11:52:330
6181999158,0cyclictest0-21swapper10:36:540
148922910,0sleep014862-1kworker/u3:007:28:220
7450900,0irq/46-4a1000007428-21irqstats10:17:110
7450900,0irq/46-4a10000019452-1kworker/u3:111:01:010
7350900,0irq/45-4a10000025922-21sed11:11:530
6181999057,0cyclictest0-21swapper10:47:000
6181999057,0cyclictest0-21swapper07:57:140
6181999056,0cyclictest0-21swapper12:12:280
6181999055,0cyclictest0-21swapper10:42:260
7450890,0irq/46-4a10000032713-21wc09:56:500
7450890,0irq/46-4a10000015280-1kworker/u3:109:08:140
6181998967,0cyclictest0-21swapper08:37:070
6181998958,0cyclictest0-21swapper11:42:160
6181998956,0cyclictest0-21swapper10:06:500
7450880,0irq/46-4a10000029758-21awk09:47:230
7450880,0irq/46-4a10000028618-1kworker/u3:009:44:190
7450880,0irq/46-4a1000002779-21ls11:37:350
7450880,0irq/46-4a10000019492-21/usr/sbin/munin10:52:190
7450880,0irq/46-4a10000017256-21/usr/sbin/munin07:36:470
7450880,0irq/46-4a10000012495-21if_err_eth012:07:090
6181998866,0cyclictest0-21swapper09:22:360
6181998857,0cyclictest0-21swapper09:12:010
6181998856,0cyclictest0-21swapper08:22:100
6181998856,0cyclictest0-21swapper08:07:090
6181998855,0cyclictest0-21swapper09:27:160
7450870,0irq/46-4a1000009275-21ntp_kernel_pll_10:22:210
7450870,0irq/46-4a1000008797-21seq11:56:500
7450870,0irq/46-4a1000008508-21seq07:12:000
7450870,0irq/46-4a100000460-21snmpd11:31:560
7450870,0irq/46-4a1000003916-21sshd08:32:060
7450870,0irq/46-4a10000029741-21missed_timers11:22:200
7450870,0irq/46-4a10000027505-21aten_r4power_vo11:16:480
7450870,0irq/46-4a10000021157-21meminfo12:32:160
7450870,0irq/46-4a10000019692-21/usr/sbin/munin09:17:300
7450870,0irq/46-4a10000017640-21cat12:22:080
7450870,0irq/46-4a10000015965-21/usr/sbin/munin12:17:100
7450870,0irq/46-4a1000001417-1kworker/u3:108:27:050
7450870,0irq/46-4a10000012859-21mailstats10:32:280
7350870,0irq/45-4a100000484-21runrttasks07:06:480
6181998764,0cyclictest0-21swapper10:27:220
140382878,0sleep014052-21awk09:02:000
7450860,0irq/46-4a1000005445-21df_abs11:46:520
7450860,0irq/46-4a10000031086-21df_abs09:51:540
7450860,0irq/46-4a10000026749-21/usr/sbin/munin08:02:340
7450860,0irq/46-4a10000023167-21switchtime07:52:290
7450860,0irq/46-4a10000021235-21ntpq07:47:230
7450860,0irq/46-4a10000020075-1kworker/u3:107:44:520
7450860,0irq/46-4a10000019057-21df12:26:520
7450860,0irq/46-4a10000013087-21users07:22:350
7450860,0irq/46-4a10000010301-21aten_r4power_cu08:51:440
7350860,0irq/45-4a10000010457-21cpu07:16:480
307082867,0sleep030718-21ls08:16:380
7450850,0irq/46-4a100000460-21snmpd12:02:170
7450850,0irq/46-4a10000031401-21load11:27:150
7450850,0irq/46-4a10000031083-21df08:16:520
7450850,0irq/46-4a10000024237-21/usr/sbin/munin11:06:550
7450850,0irq/46-4a1000002205-21tune2fs10:02:030
7450850,0irq/46-4a10000012676-21grep08:57:200
6181998554,0cyclictest0-21swapper08:42:090
6181998554,0cyclictest0-21swapper07:32:280
7450840,0irq/46-4a1000005686-21if_eth010:12:130
7450840,0irq/46-4a10000025907-21seq09:36:530
7450840,0irq/46-4a10000024575-21meminfo09:32:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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