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2026-08-20 - 23:52
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack7slot8.osadl.org (updated Thu Aug 20, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20095211710,11sleep020094-21/usr/sbin/munin19:05:320
207289916839,102cyclictest24074-21ntpq19:20:370
207289916722,18cyclictest22508-21wget19:15:140
207289916627,120cyclictest31242-21wget19:50:140
207289916136,108cyclictest10250irq/56-4a10000021:31:050
207289916130,118cyclictest30920-21apt-get21:56:350
207289916125,104cyclictest6953-21netstat20:20:340
20728991599,19cyclictest27607-21df19:35:190
20728991599,16cyclictest2010-21node23:38:240
20728991589,24cyclictest17232-21ntp_states23:05:410
207289915841,107cyclictest21305-21sshd21:15:290
207289915729,108cyclictest7051-21sshd00:30:050
207289915649,97cyclictest26331-21uname23:41:030
20728991559,22cyclictest1855-21chrt22:05:380
20728991557,19cyclictest7740-21apt-get20:27:100
207289915536,106cyclictest754-21systemd-journal00:37:010
207289915529,109cyclictest10250irq/56-4a10000000:09:190
207289915523,112cyclictest19326-21latency_hist21:10:030
207289915432,102cyclictest1214-21munin-node20:00:110
207289915421,117cyclictest787-21haveged22:15:050
207289915418,16cyclictest20661-21apt-get19:11:220
207289915410,18cyclictest20569-21munin-run21:15:040
20728991539,17cyclictest4103-21apt22:15:110
20728991538,21cyclictest3262-21df00:15:200
20728991536,17cyclictest1408-21nginx19:40:430
20728991529,22cyclictest22048-21diskstats23:25:220
20728991526,17cyclictest3603-21apt-get20:12:080
207289915235,107cyclictest7174-21sshd00:30:160
207289915232,106cyclictest21006-21ntpq23:20:430
207289915230,103cyclictest1305-21snmpd23:56:520
207289915225,19cyclictest1305-21snmpd20:59:410
20728991517,17cyclictest1305-21snmpd23:03:270
207289915136,103cyclictest10785-21grep20:35:140
207289915125,114cyclictest11861-21/usr/sbin/munin22:45:170
207289915118,18cyclictest28327-21munin-run23:50:040
20728991508,19cyclictest23475-21ntp_states23:30:420
20728991506,22cyclictest1305-21snmpd19:29:210
207289915025,105cyclictest1305-21snmpd21:37:520
207289915023,17cyclictest5372-21wget20:15:110
20728991499,22cyclictest29288-21ntp_states23:51:210
207289914936,96cyclictest3650irq/20-4900000020:50:230
207289914935,94cyclictest17821-21runrttasks21:02:470
207289914924,105cyclictest4425-21cut00:20:140
207289914923,115cyclictest2513-21/usr/sbin/munin00:11:340
20728991487,17cyclictest239752chrt21:25:380
207289914845,92cyclictest14863-21runrttasks22:55:470
207289914840,98cyclictest301-21runrttasks19:55:380
207289914826,110cyclictest20469-21munin-plugin-st23:20:020
207289914825,108cyclictest10250irq/56-4a10000022:34:030
207289914824,113cyclictest31566-21diskstats00:00:250
20728991477,17cyclictest1305-21snmpd21:20:100
20728991476,15cyclictest9806-21/usr/sbin/munin22:35:430
207289914744,90cyclictest30109-21df_inode19:45:160
20728991468,16cyclictest13956-21chrt22:52:530
20728991467,18cyclictest754-21systemd-journal21:40:300
20728991467,18cyclictest29912-21wget21:50:150
207289914610,23cyclictest29247-21seq21:46:230
20728991459,23cyclictest7113-21fw_forwarded_lo22:25:270
20728991456,15cyclictest10181-21sshd20:31:280
207289914542,92cyclictest11198-21mailstats22:40:470
207289914535,99cyclictest5895-21cat22:20:290
207289914528,105cyclictest190042chrt23:13:220
207289914437,94cyclictest10250irq/56-4a10000022:00:160
207289914422,111cyclictest13588-21ntpq20:45:380
207289914218,15cyclictest26369-21df19:30:180
207289914124,105cyclictest2936-21seq20:05:450
207289914032,96cyclictest12271-21seq20:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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