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2026-09-17 - 10:24
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot2.osadl.org (updated Thu Sep 17, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254229522690,3chrt2542283-21ntpq20:45:410
255594722530,3chrt2555945-21diskstats21:35:190
254582522530,3sleep02545826-21sshd20:58:590
256907322360,3chrt2569071-21grep22:21:170
257317422350,4chrt2573175-21sendmail_mailqu22:36:160
251470822320,3sleep02514712-21wc19:06:010
259800222160,3sleep02598006-21wc00:06:220
259140022090,4sleep02591403-21wc23:41:190
258508522080,3sleep02585086-21latency_hist23:20:070
258926022020,2sleep02589263-21wc23:35:070
252378422020,3sleep02523787-21wc19:40:080
258239221960,2sleep02582390-21cpu23:10:150
252120421940,3chrt2521202-21irqstats19:30:260
251531899190157,22cyclictest2596117-21b-backup00:00:010
260074621800,3sleep02600747-21grep00:16:160
252509621780,2sleep02525094-21systemd-run19:45:040
257737721770,2sleep02577378-21plymouth22:51:170
256139721770,2sleep02561398-21latency_hist21:55:070
253127821740,2sleep02531279-21uname20:06:060
257243921730,4chrt2572436-21grep22:35:010
254094321730,4chrt2540942-21ld20:40:470
256753321700,3chrt2566996-21/usr/sbin/munin22:16:180
257529721680,4chrt2575298-21latency_hist22:45:060
257568421660,4chrt2575679-21ntpq22:45:330
254932521660,4chrt2549319-21ntpq21:10:550
251881921640,4chrt2518821-21processes19:21:150
260562421610,2sleep02605625-21date00:35:070
252024021360,2sleep02520244-21wc19:26:130
251531899136107,20cyclictest2564094-21kworker/u2:222:26:210
251754621330,3sleep02517549-21grep19:16:190
253685121320,2sleep02536852-21sh20:26:080
255163121280,2sleep02551632-21ls21:20:070
258006221190,2sleep02580053-21ntpq23:01:110
25153189911991,19cyclictest2544998-21kworker/u2:021:05:220
25153189911183,19cyclictest2550570-21kworker/u2:121:31:540
25153189910576,19cyclictest2578030-21kworker/u2:123:06:170
25153189910173,19cyclictest2530656-21kworker/u2:120:11:140
2515318999970,20cyclictest2544998-21kworker/u2:021:01:140
2515318999968,20cyclictest2522193-21kworker/u2:019:50:520
2515318998959,19cyclictest2522193-21kworker/u2:019:57:520
258690228513,19sleep02586899-21ntpq23:25:470
2515318998556,18cyclictest2588213-21kworker/u2:023:39:360
2515318998454,19cyclictest2592399-21kworker/u2:223:51:170
252572128112,18sleep02525723-21ntpq19:46:110
2515318998052,19cyclictest2533916-21kworker/u2:020:36:160
2515318997948,20cyclictest2578030-21kworker/u2:122:56:090
255768527110,16sleep02557682-21ntpq21:40:540
2515318996730,15cyclictest25641042sleep022:05:030
25993822660,2sleep02599420-21timerandwakeup00:11:200
25934312660,2sleep02593432-21latency_hist23:50:070
2515318996643,14cyclictest2559334-21/usr/sbin/munin21:46:170
2515318996627,16cyclictest2553881-21vmstat21:26:220
25655882655,14sleep00-21swapper22:10:080
25527602655,14sleep00-21swapper21:23:360
2515318996522,18cyclictest0-21swapper00:02:180
2515318996421,19cyclictest0-21swapper19:14:050
2515318996342,11cyclictest0-21swapper00:26:240
2515318996314,25cyclictest2605965-21ntpq00:35:320
2515318996314,25cyclictest2561760-21ntpq21:55:360
2515318996313,26cyclictest2538247-21ntpq20:31:100
2515318996229,22cyclictest2565022-21users22:06:230
2515318996228,25cyclictest2529830-21ld20:00:530
2515318996214,19cyclictest2535047-21df_inode20:20:160
2515318996212,26cyclictest885-21mta-sts-daemon00:21:540
2515318996211,20cyclictest2585476-21gcc23:20:380
2515318996119,18cyclictest0-21swapper20:19:390
2515318996118,18cyclictest2543927-21find20:51:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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