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2025-05-23 - 09:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Fri May 23, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24690762313271,28sleep10-21swapper/119:05:021
24704332301258,29sleep00-21swapper/019:05:380
247097799237231,4cyclictest1176662-21kworker/u8:119:49:561
2470973991688,147cyclictest2649169-21apt-key00:05:010
24709739916411,140cyclictest2649349-21dpkg00:05:020
24709779913849,65cyclictest2649180-21gpgv00:05:011
24709779912744,71cyclictest2649539-21gpgv00:05:021
125899580,4rtkit-daemon1257-21rtkit-daemon21:31:110
247097399573,5cyclictest2519148-21apt-get21:10:130
247097399542,6cyclictest2638246-21apt-get23:50:130
247097399542,6cyclictest2518885-21diskmemload23:37:330
247097399542,5cyclictest2634593-21apt-get23:45:170
247097399542,4cyclictest2545893-21apt-get21:45:120
125899540,4rtkit-daemon1257-21rtkit-daemon21:35:160
247097399533,9cyclictest2597489-21apt-get22:55:150
247097399531,5cyclictest2498325-21ntp_states20:15:230
247097399529,4cyclictest0-21swapper/023:34:350
247097399522,5cyclictest2564244-21apt-get22:10:140
125899520,4rtkit-daemon1257-21rtkit-daemon00:19:031
247097399517,6cyclictest13-21ksoftirqd/020:25:170
247097399511,5cyclictest2593727-21apt-get22:50:180
125899510,4rtkit-daemon1257-21rtkit-daemon20:13:551
125899510,4rtkit-daemon1257-21rtkit-daemon19:22:521
125899510,3rtkit-daemon1257-21rtkit-daemon22:02:361
247097399501,9cyclictest2610092-21sshd23:11:060
125899500,4rtkit-daemon1257-21rtkit-daemon20:29:461
125899500,4rtkit-daemon1257-21rtkit-daemon19:26:561
247097399491,7cyclictest2631237-21diskstats23:40:150
247097399481,7cyclictest2518885-21diskmemload21:57:580
125899480,3rtkit-daemon1257-21rtkit-daemon20:18:331
247097399471,12cyclictest2507355-21apt-get20:40:140
125899470,4rtkit-daemon1257-21rtkit-daemon19:31:361
25134392460,4sleep02513437-21seq20:55:210
247097399461,7cyclictest2518885-21diskmemload00:14:160
247097399461,6cyclictest2518885-21diskmemload21:42:330
247097399461,5cyclictest2518885-21diskmemload00:20:180
247097399460,10cyclictest2575006-21munin-run22:25:000
247097399452,4cyclictest2518885-21diskmemload23:15:190
247097399451,9cyclictest2518885-21diskmemload23:05:500
247097399443,9cyclictest2499533-21apt-get20:20:160
247097399442,5cyclictest2567925-21apt-get22:15:140
247097399441,9cyclictest2518885-21diskmemload21:18:280
247097399432,5cyclictest2491702-21apt-get20:00:200
247097399431,6cyclictest2518885-21diskmemload00:29:460
247097399431,5cyclictest2518885-21diskmemload22:47:300
247097399423,10cyclictest2485373-21apt-get19:45:140
247097399422,9cyclictest2479502-21apt-get19:30:140
247097399412,7cyclictest2493653-21apt-get20:05:140
247097399411,5cyclictest2518885-21diskmemload22:25:070
247097399402,8cyclictest2510067-21ntp_states20:45:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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