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2026-07-05 - 12:01
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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 Jul 05, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21050092265184,28sleep10-21swapper/119:07:271
21037372241179,47sleep00-21swapper/019:05:200
221071921250,5sleep0161rcuc/022:20:230
179699660,3rtkit-daemon1795-21rtkit-daemon23:59:070
179699660,3rtkit-daemon1795-21rtkit-daemon19:37:150
179699640,3rtkit-daemon1795-21rtkit-daemon20:17:580
179699600,4rtkit-daemon1795-21rtkit-daemon23:36:341
179699600,4rtkit-daemon1795-21rtkit-daemon21:23:101
22874352580,4sleep10-21swapper/100:00:061
210539799582,35cyclictest2283561-21apt-get23:55:111
179699580,4rtkit-daemon1795-21rtkit-daemon22:54:071
179699580,4rtkit-daemon1795-21rtkit-daemon22:41:431
210539799571,36cyclictest2118459-21apt-get19:40:111
179699560,3rtkit-daemon1795-21rtkit-daemon23:06:351
179699560,3rtkit-daemon0-21swapper/100:29:320
21893662550,4sleep10-21swapper/121:55:091
210539799552,34cyclictest2264076-21apt-get23:30:131
210539799551,32cyclictest2216051-21ssh22:28:171
210539799551,32cyclictest2216051-21ssh22:28:171
210539799548,24cyclictest2243724-21taskset23:04:031
210539799541,34cyclictest2309788-21apt-get00:30:071
2105397995410,22cyclictest2128870-21sed20:05:191
2105397995313,22cyclictest2120387-21acpi19:45:111
2105397995310,23cyclictest2147863-21cpuspeed_turbos20:55:161
210539799530,30cyclictest2157750-21apt-get21:15:141
210539799522,33cyclictest2236498-21apt-get22:55:121
210539799522,32cyclictest2193414-21apt-get22:00:131
210539799511,32cyclictest2248281-21apt-get23:10:091
2105397995111,28cyclictest2279404-21sh23:49:411
179699510,4rtkit-daemon1795-21rtkit-daemon00:29:241
179699510,3rtkit-daemon1795-21rtkit-daemon23:52:211
2105397995010,23cyclictest2136222-21expr20:25:141
210539799500,28cyclictest2314034-21apt-get00:35:031
210539799491,31cyclictest2252258-21apt-get23:15:141
210539799491,30cyclictest2165797-21apt-get21:25:111
210539799491,28cyclictest2200134-21ssh22:08:271
210539799490,34cyclictest2177718-21apt-get21:40:121
210539799490,29cyclictest2115980-21taskset19:31:541
210539799490,25cyclictest2299603-21/usr/sbin/munin00:15:251
210539799488,23cyclictest2108604-21expr19:15:201
210539799482,30cyclictest2205490-21apt-get22:15:131
210539799480,36cyclictest2204554-21sh22:14:301
210539799480,28cyclictest2147345-21taskset20:52:471
210539799478,20cyclictest2132284-21expr20:15:141
210539799471,31cyclictest2217252-21apt-get22:30:141
210539799471,30cyclictest2291484-21apt-get00:05:131
210539799471,30cyclictest2260129-21apt-get23:25:131
210539799471,30cyclictest2139947-21apt-get20:35:121
210539799471,23cyclictest2212728-21sh22:24:291
2105397994711,30cyclictest66950irq/132-enp2s023:40:121
210539799470,32cyclictest2173863-21apt-get21:35:121
210539799470,30cyclictest2228929-21apt-get22:45:121
210539799470,30cyclictest2134100-21apt-get20:20:141
210539799462,26cyclictest2127793-21chrt20:02:411
210539799461,33cyclictest2183850-21sh21:46:531
210539799461,29cyclictest2125238-21/usr/sbin/munin19:55:231
210539799461,28cyclictest2294742-21apt-get00:10:121
210539799461,28cyclictest2221264-21apt-get22:35:121
210539799461,28cyclictest2185691-21apt-get21:50:121
210539799461,27cyclictest2113848-21seq19:25:411
210539799460,31cyclictest2153731-21apt-get21:10:161
210539799460,30cyclictest2130179-21apt-get20:10:141
210539799460,30cyclictest2122357-21apt-get19:50:141
210539799460,23cyclictest2256300-21apt-get23:20:111
179699460,3rtkit-daemon1795-21rtkit-daemon21:21:440
210539799450,26cyclictest21118412sleep119:24:351
210539799447,26cyclictest2117817-21sshd19:35:421
210539799440,32cyclictest2171712-21ssh21:31:241
210539799440,28cyclictest2304610-21taskset00:22:091
210539799440,27cyclictest2150465-21seq21:00:201
210539799440,26cyclictest2142506-21sed20:40:171
179699440,8rtkit-daemon2232845-21apt-get22:50:130
210539799431,30cyclictest2137982-21/usr/sbin/munin20:30:291
210539799430,30cyclictest2151998-21perl21:05:161
210539799430,26cyclictest2106104-21sed19:10:181
210539799411,22cyclictest2144487-21sed20:45:191
210539799411,22cyclictest2144487-21sed20:45:181
179699360,6rtkit-daemon2264767-21missed_timers23:30:190
179699360,3rtkit-daemon0-21swapper/019:41:530
179699350,3rtkit-daemon0-21swapper/100:04:210
2105392993430,3cyclictest17150irq/131-xhci_hc21:33:440
179699340,3rtkit-daemon0-21swapper/123:08:420
179699330,1rtkit-daemon1795-21rtkit-daemon22:15:250
179699320,3rtkit-daemon1795-21rtkit-daemon23:17:550
179699320,3rtkit-daemon1795-21rtkit-daemon19:58:180
179699320,3rtkit-daemon0-21swapper/123:24:220
179699320,3rtkit-daemon0-21swapper/122:30:440
179699320,3rtkit-daemon0-21swapper/100:23:060
179699310,4rtkit-daemon2251299-21ssh23:13:390
179699310,3rtkit-daemon0-21swapper/123:40:210
179699310,3rtkit-daemon0-21swapper/123:36:410
179699300,3rtkit-daemon0-21swapper/123:52:420
179699300,3rtkit-daemon0-21swapper/122:41:570
179699300,3rtkit-daemon0-21swapper/121:42:060
2105392992926,2cyclictest17150irq/131-xhci_hc21:29:160
179699290,3rtkit-daemon0-21swapper/123:48:240
179699290,3rtkit-daemon0-21swapper/123:28:250
179699290,3rtkit-daemon0-21swapper/120:49:430
179699290,3rtkit-daemon0-21swapper/120:49:420
179699290,3rtkit-daemon0-21swapper/119:49:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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