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2025-07-12 - 12:53
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Sat Jul 12, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502800,0irq/45-4a1000008238-21kworker/0:419:06:240
1268721000,0sleep012457-1kworker/u3:222:19:590
150432980,0sleep011015-1kworker/u3:200:00:370
7450970,0irq/46-4a10000029708-21seq21:34:580
7450960,0irq/46-4a10000026665-21cstates00:35:060
7450960,0irq/46-4a10000023254-21df_inode22:50:110
7450950,0irq/46-4a100000439-21snmpd23:51:200
7450950,0irq/46-4a10000027773-21chrt21:29:080
7350950,0irq/45-4a10000023729-1kworker/u3:521:19:460
7350950,0irq/45-4a10000020012-21fw_packets22:40:300
7450940,0irq/46-4a1000004786-21seq20:21:540
7450940,0irq/46-4a10000032654-21runrttasks23:16:200
7450940,0irq/46-4a10000024640-1kworker/u3:000:31:360
7450940,0irq/46-4a10000024455-21sendmail-msp21:20:590
7450940,0irq/46-4a10000021253-21wget21:10:010
7450940,0irq/46-4a10000015161-21mailstats20:50:420
7450940,0irq/46-4a10000013674-21/usr/sbin/munin20:45:530
7350940,0irq/45-4a10000024210-21runrttasks19:43:500
7350940,0irq/45-4a10000011648-21proc_pri20:40:550
7450930,0irq/46-4a1000004954-21grep21:55:470
7450930,0irq/46-4a10000031748-21diskstats21:40:160
7450930,0irq/46-4a10000031549-21chrt20:05:070
7450930,0irq/46-4a10000030855-21sshd20:02:070
7450930,0irq/46-4a10000027026-21mailstats19:50:440
7450930,0irq/46-4a10000026260-1kworker/u3:123:28:320
7450930,0irq/46-4a10000023053-21/usr/sbin/munin00:25:350
7450930,0irq/46-4a10000021820-21runrttasks00:20:250
7450930,0irq/46-4a10000021560-21fw_forwarded_lo19:35:520
7450930,0irq/46-4a10000019787-21fw_forwarded_lo19:30:190
7450930,0irq/46-4a10000018407-21seq21:00:480
7450930,0irq/46-4a10000015789-21sendmail-msp19:20:040
7450930,0irq/46-4a1000001220-21seq21:45:570
107832930,0sleep09329-1kworker/u3:023:48:450
7450920,0irq/46-4a1000009618-21fschecks_time22:10:160
7450920,0irq/46-4a1000007729-21df_inode20:30:080
7450920,0irq/46-4a100000439-21snmpd20:25:310
7450920,0irq/46-4a10000028982-21vmstat19:55:540
7450920,0irq/46-4a1000002706-21diskstats21:50:180
7450920,0irq/46-4a1000002272-21/usr/sbin/munin20:15:270
7450920,0irq/46-4a10000020267-21sed00:15:350
7450920,0irq/46-4a10000018613-21ntp_states00:10:380
7450920,0irq/46-4a10000018412-21chrt22:35:290
7450920,0irq/46-4a10000018385-1kworker/u3:122:45:570
7450920,0irq/46-4a10000016873-21ntp_kernel_pll_00:05:340
7450920,0irq/46-4a10000015642-1kworker/u3:220:54:520
7450920,0irq/46-4a10000014359-21latency_hist22:24:460
7450920,0irq/46-4a10000014167-21timerwakeupswit19:15:120
7450920,0irq/46-4a1000001409-21memory23:20:410
7450920,0irq/46-4a10000013364-21cat23:55:320
7450920,0irq/46-4a10000012232-21tune2fs19:10:130
7450920,0irq/46-4a10000011248-21df_inode22:15:110
7450910,0irq/46-4a1000009462-21entropy20:35:130
7450910,0irq/46-4a100000884-21diskstats20:10:100
7450910,0irq/46-4a1000008129-21runrttasks22:05:290
7450910,0irq/46-4a1000004226-21wget23:29:580
7450910,0irq/46-4a10000029790-21/usr/sbin/munin23:10:500
7450910,0irq/46-4a10000029180-21seq23:05:500
7450910,0irq/46-4a10000023253-1kworker/u3:222:56:230
7450910,0irq/46-4a10000020244-21/usr/sbin/munin21:05:400
7450900,0irq/46-4a1000008378-21awk23:40:480
7450900,0irq/46-4a1000006142-21diskstats22:00:200
7450900,0irq/46-4a1000006009-21aten_r4power_po23:35:050
7450900,0irq/46-4a10000028184-21ls21:30:030
7450900,0irq/46-4a10000024693-21df19:45:080
179322909,0sleep017935-21df_inode19:25:110
7450890,0irq/46-4a10000027470-21users23:01:010
7450890,0irq/46-4a10000016097-21seq22:29:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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