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2025-11-18 - 09:34
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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 all highest latencies:
System rack4slot2.osadl.org (updated Tue Nov 18, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012910,0irq/46-4a10000027783-1kworker/u3:219:05:240
14012960,0chrt32365-1kworker/u3:122:27:560
7450940,0irq/46-4a10000021205-21ntp_states23:24:240
7450920,0irq/46-4a1000003579-21if_eth019:24:080
7450910,0irq/46-4a1000007184-21kernelversion21:09:170
7450910,0irq/46-4a1000002783-1kworker/u3:022:39:500
7450910,0irq/46-4a10000022622-21fschecks_time23:29:000
7450910,0irq/46-4a10000022077-21runrttasks21:53:440
7450910,0irq/46-4a10000017470-21sshd23:14:010
7450910,0irq/46-4a10000015043-21latency_hist19:58:320
7450910,0irq/46-4a10000010517-21/usr/sbin/munin22:53:580
7450900,0irq/46-4a1000008780-21runrttasks22:48:550
7450900,0irq/46-4a100000805-21ps23:59:230
7450900,0irq/46-4a1000007734-21timerandwakeup22:44:330
7450900,0irq/46-4a10000031521-21chmod19:13:310
7450900,0irq/46-4a10000026927-21chrt23:41:210
7450900,0irq/46-4a1000002669-1kworker/u3:120:57:260
7450900,0irq/46-4a10000025502-21/usr/sbin/munin22:04:280
7450900,0irq/46-4a10000025442-21aten_r4power_po20:28:440
7450900,0irq/46-4a10000024414-21missed_timers21:59:170
7450900,0irq/46-4a10000020101-21grep20:13:290
7450900,0irq/46-4a10000018153-21runrttasks20:06:480
7450900,0irq/46-4a1000001730-21fschecks_count19:19:010
7450900,0irq/46-4a10000014027-21ntp_kernel_pll_19:54:210
7450890,0irq/46-4a1000009934-21/usr/sbin/munin19:44:000
7450890,0irq/46-4a1000008807-21fw_forwarded_lo21:14:050
7450890,0irq/46-4a1000008543-21diskstats19:38:590
7450890,0irq/46-4a1000007125-21df_abs00:18:490
7450890,0irq/46-4a1000005240-21fw_conntrack19:29:040
7450890,0irq/46-4a1000004919-21apt21:03:380
7450890,0irq/46-4a100000475-21/usr/sbin/munin19:14:440
7450890,0irq/46-4a1000004009-21ntp_kernel_pll_22:34:220
7450890,0irq/46-4a1000003459-21runrttasks00:08:400
7450890,0irq/46-4a10000030660-21chrt22:18:400
7450890,0irq/46-4a10000029989-21runrttasks20:40:170
7450890,0irq/46-4a10000029415-21grep22:14:290
7450890,0irq/46-4a10000029348-21df_inode23:48:550
7450890,0irq/46-4a10000023854-21wc20:23:490
7450890,0irq/46-4a1000002280-21/usr/sbin/munin00:04:080
7450890,0irq/46-4a10000021942-1kworker/u3:220:19:440
7450890,0irq/46-4a10000020787-21perl21:49:040
7450890,0irq/46-4a10000017287-21fschecks_count21:38:580
7450890,0irq/46-4a10000012490-21latency22:59:120
7450890,0irq/46-4a10000012258-21fw_conntrack21:24:070
7450890,0irq/46-4a10000011803-21chrt00:32:530
7350890,0irq/45-4a1000009008-21grep00:24:010
7350890,0irq/45-4a10000021942-1kworker/u3:220:33:570
198932890,0chrt18165-1kworker/u3:121:45:500
165312890,0sleep016253-1kworker/u3:123:10:320
7450880,0irq/46-4a1000005619-21fw_conntrack00:14:030
7450880,0irq/46-4a1000003891-21ntp_kernel_pll_20:59:200
7450880,0irq/46-4a10000031071-21diskstats23:53:550
7450880,0irq/46-4a10000028091-21runrttasks22:09:260
7450880,0irq/46-4a10000027944-21runrttasks23:44:120
7450880,0irq/46-4a1000002783-1kworker/u3:022:31:330
7450880,0irq/46-4a10000024896-21mailstats23:35:230
7450880,0irq/46-4a10000019943-1kworker/u3:120:16:240
7450880,0irq/46-4a10000018775-21/usr/sbin/munin23:19:180
7450880,0irq/46-4a10000014329-21sendmail_mailst21:29:250
7350880,0irq/45-4a10000016242-21seq21:34:370
7450870,0irq/46-4a10000032697-21fw_forwarded_lo20:49:070
7450870,0irq/46-4a10000030594-21/usr/sbin/munin20:43:450
7450870,0irq/46-4a10000013692-21/usr/sbin/munin23:03:470
7450870,0irq/46-4a10000011624-21chrt19:48:330
7450870,0irq/46-4a10000010025-21grep21:18:310
7450860,0irq/46-4a1000006502-21runrttasks19:33:420
7450860,0irq/46-4a10000011978-21grep00:33:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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