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2026-04-11 - 08:52
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Sat Apr 11, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502170,0irq/45-4a10000026343-21kworker/0:019:00:550
71442947,0sleep07192-21unixbench_singl23:51:380
7350920,0irq/45-4a10000015056-21diskstats00:16:020
160152890,0sleep032688-1kworker/u3:119:33:240
7450870,0irq/46-4a1000006290-21aten_r4power_vo20:40:530
7450870,0irq/46-4a100000460-21snmpd20:49:150
7450870,0irq/46-4a10000012272-21timerandwakeup20:56:370
289002877,0sleep028914-21irqstats20:11:160
132472877,0sleep013266-21df_abs21:00:590
7450860,0irq/46-4a1000009959-21grep00:01:080
7450860,0irq/46-4a1000009912-21diskstats20:51:020
7450860,0irq/46-4a1000008462-21/usr/sbin/munin22:21:210
7450860,0irq/46-4a10000021750-21cat19:50:550
7450860,0irq/46-4a10000021583-21cut23:00:500
7450860,0irq/46-4a10000018119-21latency_hist19:40:450
7450860,0irq/46-4a10000017335-21sensors_temp19:36:360
7450860,0irq/46-4a1000001635-21latency20:26:200
7450850,0irq/46-4a1000009625-21aten_r4power_cu22:25:510
7450850,0irq/46-4a1000007789-21hostname19:11:060
7450850,0irq/46-4a1000005378-21sensors20:36:360
7450850,0irq/46-4a10000031097-21sed20:16:380
7450850,0irq/46-4a10000030742-21missed_timers21:51:260
7450850,0irq/46-4a10000025441-21tune2fs21:36:090
7450850,0irq/46-4a10000023805-21runrttasks23:06:180
7450850,0irq/46-4a10000021922-21fschecks_count21:26:110
7450850,0irq/46-4a10000020561-21ntp_offset22:56:290
7450850,0irq/46-4a10000020293-21fschecks_time21:21:100
7450850,0irq/46-4a10000019234-21/usr/sbin/munin21:16:420
7450850,0irq/46-4a10000018599-21fw_forwarded_lo22:51:100
7450850,0irq/46-4a10000017478-21unixbench_singl00:21:390
7450850,0irq/46-4a10000014962-21runrttasks22:41:000
7450840,0irq/46-4a1000009927-21diskstats19:16:030
7450840,0irq/46-4a1000008774-21/usr/sbin/munin23:56:350
7450840,0irq/46-4a1000006477-21sed22:16:000
7450840,0irq/46-4a1000005182-21ntp_states22:11:310
7450840,0irq/46-4a1000004788-21diskstats23:46:040
7450840,0irq/46-4a1000003445-21/usr/sbin/munin20:31:280
7450840,0irq/46-4a10000032525-21/usr/sbin/munin23:31:290
7450840,0irq/46-4a10000031831-21/usr/sbin/munin20:21:380
7450840,0irq/46-4a10000030635-21irqstats23:26:170
7450840,0irq/46-4a10000029067-21nfs4_client23:21:270
7450840,0irq/46-4a10000027334-21nfs4_client20:06:260
7450840,0irq/46-4a10000026044-21users23:11:380
7450840,0irq/46-4a10000025677-21ntpq20:01:280
7450840,0irq/46-4a10000023941-21nfs4_client19:56:320
7450840,0irq/46-4a10000020388-21awk00:31:190
7450840,0irq/46-4a10000016921-21if_err_eth021:11:150
7450840,0irq/46-4a10000015324-21meminfo21:06:190
7450840,0irq/46-4a10000014051-21sed19:26:400
7450840,0irq/46-4a1000001382-21diskstats23:36:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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