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2025-10-30 - 18:00
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Thu Oct 30, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502880,0irq/46-4a10000024087-1kworker/u3:207:05:140
73501060,0irq/45-4a1000005394-21cpu07:44:310
24991999461,0cyclictest0-21swapper08:20:070
24991999455,0cyclictest0-21swapper10:04:390
24991999370,0cyclictest0-21swapper07:59:290
24991999357,0cyclictest0-21swapper08:39:390
24991999270,0cyclictest0-21swapper07:24:510
24991999259,0cyclictest0-21swapper10:14:510
24991999258,0cyclictest0-21swapper10:59:430
24991999254,0cyclictest0-21swapper09:15:060
7450910,0irq/46-4a10000016442-21runrttasks08:15:160
7350910,0irq/45-4a10000023921-1kworker/u3:011:49:430
24991999158,0cyclictest0-21swapper07:50:050
7450900,0irq/46-4a10000026127-21timerwakeupswit07:10:160
7350900,0irq/45-4a1000003767-21chrt07:39:320
7350900,0irq/45-4a10000014192-21df09:44:470
24991999069,0cyclictest0-21swapper11:19:470
24991999067,0cyclictest0-21swapper10:39:520
24991999058,0cyclictest0-21swapper10:25:100
24991999058,0cyclictest0-21swapper09:55:120
24991999058,0cyclictest0-21swapper08:29:580
24991999056,0cyclictest0-21swapper12:35:030
24991999056,0cyclictest0-21swapper08:59:280
24991999054,0cyclictest0-21swapper10:49:430
7450890,0irq/46-4a10000032052-21grep12:10:080
7450890,0irq/46-4a10000030032-21cat07:20:120
24991998967,0cyclictest0-21swapper11:39:390
24991998957,0cyclictest0-21swapper10:35:260
24991998957,0cyclictest0-21swapper07:15:370
7450880,0irq/46-4a100000443-21snmpd08:10:420
7450880,0irq/46-4a10000028153-21fschecks_time11:59:430
7450880,0irq/46-4a1000002539-21/usr/sbin/munin09:09:590
7450880,0irq/46-4a10000023312-21gzip10:10:110
7450880,0irq/46-4a10000019401-21df11:34:370
7450880,0irq/46-4a10000018325-21mailstats11:30:120
7450880,0irq/46-4a10000015592-21date09:49:130
7450880,0irq/46-4a10000013578-21chrt09:42:260
7350880,0irq/45-4a10000029524-21df_abs08:54:370
24991998854,0cyclictest0-21swapper09:35:030
7450870,0irq/46-4a1000009215-21idleruntime07:55:200
7450870,0irq/46-4a1000007057-21sendmail-msp10:59:110
7450870,0irq/46-4a1000005881-21seq12:29:380
7450870,0irq/46-4a1000002832-21grep07:35:140
7450870,0irq/46-4a100000221-21lighttpd11:05:000
7450870,0irq/46-4a10000017109-1kworker/u3:111:28:500
7350870,0irq/45-4a10000010136-1kworker/u3:111:11:130
7450860,0irq/46-4a1000007894-21/usr/sbin/munin09:25:080
7450860,0irq/46-4a100000529-21basename12:14:300
7450860,0irq/46-4a10000030642-21chrt12:05:560
7450860,0irq/46-4a1000002858-21ntpq12:20:070
7450860,0irq/46-4a10000027962-21sort08:50:220
7450860,0irq/46-4a1000002756-21/usr/sbin/munin10:45:040
7450860,0irq/46-4a10000026285-21fschecks_time08:44:460
7450860,0irq/46-4a10000022701-21diskstats08:34:390
7450860,0irq/46-4a10000012227-21wget08:04:300
7350860,0irq/45-4a100000692-21runrttasks09:04:490
24991998656,0cyclictest0-21swapper07:29:510
24991998652,0cyclictest0-21swapper10:29:270
7450850,0irq/46-4a1000008981-21cat09:29:310
7450850,0irq/46-4a1000005358-21chrt09:19:150
7450850,0irq/46-4a1000004472-21/usr/sbin/munin12:24:560
7450850,0irq/46-4a10000027413-1kworker/u3:211:58:220
7450850,0irq/46-4a10000027028-21users10:20:220
7450850,0irq/46-4a10000019291-21cstates09:59:310
7450840,0irq/46-4a10000023225-21/usr/sbin/munin11:45:020
7450840,0irq/46-4a10000020357-21chrt08:27:440
7450840,0irq/46-4a10000012293-21runrttasks11:14:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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