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2025-10-10 - 08:19
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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 376 highest latencies:
System rack4slot2.osadl.org (updated Fri Oct 10, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502270,0irq/46-4a10000015278-1kworker/u3:019:09:120
10562960,0sleep026630-1kworker/u3:000:40:020
63002930,0sleep05812-1kworker/u3:120:10:250
287802930,0sleep026328-1kworker/u3:022:50:520
17171999257,0cyclictest0-21swapper22:10:080
7350910,0irq/45-4a10000030482-21fw_conntrack21:20:370
17171999067,0cyclictest0-21swapper22:45:270
7450890,0irq/46-4a1000005255-21rt-features23:15:570
7450890,0irq/46-4a10000028465-21chrt00:25:110
296212890,0chrt28056-1kworker/u3:019:44:040
255512897,0sleep025555-21open_files19:31:460
220602890,0chrt21298-1kworker/u3:120:55:500
7450880,0irq/46-4a10000016809-21sshd23:50:500
7450880,0irq/46-4a10000013336-21fschecks_count22:05:330
245242880,0sleep021523-1kworker/u3:022:37:480
177162880,0sleep09630-1kworker/u3:120:43:500
7450870,0irq/46-4a1000002556-21apt-get21:37:050
7450870,0irq/46-4a10000024534-1kworker/u3:122:55:290
7450870,0irq/46-4a10000024154-21grep21:01:050
7450870,0irq/46-4a1000001501-21/usr/sbin/munin19:55:500
47532878,0sleep04754-21fw_forwarded_lo20:05:400
7450860,0irq/46-4a100000982-21seq21:30:110
7450860,0irq/46-4a1000007709-21seq20:15:130
7450860,0irq/46-4a10000032565-21sort19:51:000
7450860,0irq/46-4a10000032552-21ntpdc23:01:470
7450860,0irq/46-4a10000031030-21which00:30:590
7450860,0irq/46-4a10000027896-21runrttasks00:21:360
7450860,0irq/46-4a10000026735-21df_abs19:35:250
7450860,0irq/46-4a10000021766-21df22:30:310
7450860,0irq/46-4a1000001644-21sshd23:05:500
7450860,0irq/46-4a10000012168-21mailstats23:35:580
7450860,0irq/46-4a10000011497-21fschecks_count20:25:300
7350860,0irq/45-4a1000004256-21apt-get21:41:250
7450850,0irq/46-4a1000006635-21fw_conntrack23:20:360
7450850,0irq/46-4a1000006118-21seq21:45:150
7450850,0irq/46-4a1000003864-21chrt20:02:480
7450850,0irq/46-4a10000032198-21fw_forwarded_lo21:25:380
7450850,0irq/46-4a10000030549-21awk19:45:490
7450850,0irq/46-4a10000025738-21sendmail_mailtr21:05:590
7450850,0irq/46-4a10000022061-21open_files19:20:560
7450850,0irq/46-4a10000019665-21aten_r4power_en19:15:340
7450850,0irq/46-4a10000019545-1kworker/u3:000:00:180
7450850,0irq/46-4a10000018658-21irqstats22:20:450
7450850,0irq/46-4a10000018236-21hostname23:55:210
7450850,0irq/46-4a10000017967-21ls22:19:580
7450850,0irq/46-4a10000013212-21cat23:40:220
7450850,0irq/46-4a10000010016-21grep23:30:310
7450840,0irq/46-4a1000009906-21fw_forwarded_lo20:20:380
7450840,0irq/46-4a1000008104-21df23:25:210
7450840,0irq/46-4a1000007875-21aten_r4power_po21:50:160
7450840,0irq/46-4a1000004101-21chrt23:13:300
7450840,0irq/46-4a10000028294-21seq21:15:140
7450840,0irq/46-4a10000026595-21hostname21:10:160
7450840,0irq/46-4a10000025433-21fschecks_time00:15:300
7450840,0irq/46-4a10000023483-21cstates00:10:180
7450840,0irq/46-4a10000020027-21seq20:50:260
7450840,0irq/46-4a10000020015-21cstates22:25:190
7450840,0irq/46-4a10000015925-21runrttasks23:46:510
7450840,0irq/46-4a10000014900-21fschecks_count20:35:280
7450840,0irq/46-4a10000013448-21cat20:30:430
7450840,0irq/46-4a10000011723-21/usr/sbin/munin22:00:410
7350840,0irq/45-4a10000024994-21runrttasks22:40:170
7450830,0irq/46-4a10000023304-21sed19:25:230
7450830,0irq/46-4a10000019545-1kworker/u3:000:07:240
7450830,0irq/46-4a10000017593-21df_inode19:10:240
7450830,0irq/46-4a10000010225-21seq21:55:520
7450820,0irq/46-4a10000018230-21sh20:45:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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