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2026-06-21 - 12:25
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Sun Jun 21, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22510452323280,29sleep10-21swapper/119:09:121
22510112309267,28sleep00-21swapper/019:08:480
24320592690,4sleep00-21swapper/000:10:210
225130199635,40cyclictest2424449-21idleruntime-cro00:00:011
179699590,27rtkit-daemon2253327-21munin-node20:35:240
22720292580,4sleep00-21swapper/020:00:130
179699580,4rtkit-daemon1795-21rtkit-daemon21:25:030
225130199562,7cyclictest2352492-21apt-get22:20:141
225130199562,6cyclictest2395572-21apt-get23:20:111
225130199561,4cyclictest2409995-21apt-get23:40:121
179699560,3rtkit-daemon0-21swapper/120:54:270
225130199552,7cyclictest2300189-21apt-get21:10:131
225130199552,5cyclictest2315467-21apt-get21:30:121
2251301995515,23cyclictest2389191-21ssh23:10:181
179699550,22rtkit-daemon2251291-21cyclictest00:24:330
225130199542,5cyclictest2444773-21apt-get00:30:131
225130199532,5cyclictest2366794-21apt-get22:40:131
225130199532,5cyclictest2311754-21apt-get21:25:131
225130199532,4cyclictest2307840-21apt-get21:20:141
225130199531,7cyclictest2428206-21apt-get00:05:131
179699530,4rtkit-daemon1795-21rtkit-daemon23:00:111
225130199522,3cyclictest2406255-21apt-get23:35:121
225130199521,5cyclictest2363186-21apt-get22:35:111
225130199520,9cyclictest2324792-21ssh21:41:101
225130199511,6cyclictest2299920-21diskmemload22:28:031
225130199510,8cyclictest2436012-21ssh00:16:481
225130199508,24cyclictest0-21swapper/121:48:031
225130199502,5cyclictest2273888-21apt-get20:05:121
225130199501,8cyclictest2340789-21ssh22:03:371
225130199501,7cyclictest2402234-21sh23:29:351
225130199500,8cyclictest2404095-21ssh23:30:321
179699500,3rtkit-daemon1795-21rtkit-daemon20:25:150
225130199491,8cyclictest2393660-21ssh23:16:191
225130199491,8cyclictest2289879-21seq20:42:191
225130199491,7cyclictest2386219-21ssh23:05:421
225130199491,7cyclictest2347089-21ssh22:11:461
225130199491,6cyclictest2292296-21apt-get20:50:131
225130199491,5cyclictest2299920-21diskmemload22:59:451
225130199491,4cyclictest2424724-21apt-get00:00:121
225130199490,9cyclictest2420301-21ssh23:54:461
225130199490,9cyclictest2372412-21ssh22:47:091
225130199490,9cyclictest2281692-21seq20:22:461
225130199490,8cyclictest2332567-21ssh21:51:021
225130199490,7cyclictest2416204-21ssh23:48:511
225130199490,5cyclictest2360351-21ntp_states22:30:221
225130199480,8cyclictest2438636-21mailstats00:20:251
225130199480,8cyclictest2267592-21seq19:47:451
179699480,4rtkit-daemon1795-21rtkit-daemon21:00:511
179699480,3rtkit-daemon1795-21rtkit-daemon22:07:181
225130199471,9cyclictest2448359-21apt-get00:35:131
225130199471,7cyclictest2252854-21seq19:12:031
225130199470,9cyclictest2279379-21seq20:18:291
225130199470,8cyclictest2307304-21ssh21:19:301
225130199470,6cyclictest2373946-21ssh22:50:101
179699470,3rtkit-daemon1795-21rtkit-daemon22:16:581
225130199461,8cyclictest2277418-21sshd20:13:231
225130199461,7cyclictest2443047-21ssh00:26:361
225130199460,9cyclictest2285807-21apt-get20:35:031
225130199460,8cyclictest2295737-21seq20:57:261
225130199460,7cyclictest2321196-21ssh21:35:481
225130199451,8cyclictest2290949-21memory20:45:201
225130199451,5cyclictest2255897-21apt-get19:20:111
225130199451,4cyclictest2262154-21apt-get19:35:121
225130199441,9cyclictest2261573-21python319:35:011
225130199441,8cyclictest2270735-21ntp_states19:55:211
225130199440,8cyclictest2335519-21find21:55:251
225130199430,8cyclictest2284833-21ntp_states20:30:191
179699430,19rtkit-daemon1795-21rtkit-daemon00:15:080
23855452410,4chrt0-21swapper/023:05:200
179699410,3rtkit-daemon0-21swapper/021:46:040
225130199401,4cyclictest2299920-21diskmemload00:11:561
2251301993810,26cyclictest2282538-21gltestperf20:25:181
179699380,3rtkit-daemon0-21swapper/023:58:320
179699380,3rtkit-daemon0-21swapper/021:39:200
179699380,3rtkit-daemon0-21swapper/000:00:070
179699360,3rtkit-daemon0-21swapper/021:53:330
179699360,3rtkit-daemon0-21swapper/021:22:460
179699360,3rtkit-daemon0-21swapper/020:14:310
179699360,2rtkit-daemon0-21swapper/123:00:050
225130199356,2cyclictest0-21swapper/119:25:331
225130199352,4cyclictest2253923-21apt-get19:15:121
2251301993411,20cyclictest2264128-21cpu19:40:131
179699340,4rtkit-daemon1795-21rtkit-daemon20:02:001
179699340,3rtkit-daemon1795-21rtkit-daemon22:38:340
179699340,3rtkit-daemon0-21swapper/120:32:060
179699340,3rtkit-daemon0-21swapper/019:45:150
2251299993329,3cyclictest66950irq/132-enp2s000:06:060
179699330,4rtkit-daemon1795-21rtkit-daemon23:32:340
179699330,3rtkit-daemon0-21swapper/020:44:330
24074242320,5sleep02407420-21seq23:35:230
225130199320,9cyclictest2299465-21vmstat21:05:241
179699320,4rtkit-daemon1795-21rtkit-daemon19:31:300
179699320,3rtkit-daemon1795-21rtkit-daemon19:53:261
179699320,3rtkit-daemon0-21swapper/023:44:000
23161122310,5chrt2316107-21ssh21:30:190
179699310,3rtkit-daemon1795-21rtkit-daemon19:18:000
179699310,3rtkit-daemon0-21swapper/122:54:210
179699300,3rtkit-daemon0-21swapper/123:12:010
179699300,3rtkit-daemon0-21swapper/119:52:440
179699300,1rtkit-daemon1795-21rtkit-daemon19:23:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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