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2025-12-24 - 03:20
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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 Wed Dec 24, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22334272263183,27sleep10-21swapper/119:07:311
22335442261184,27sleep00-21swapper/019:08:470
22725542730,5sleep00-21swapper/020:45:180
23576822650,3sleep00-21swapper/000:15:200
22601582590,2sleep12260159-21idleruntime-cro20:15:001
179699580,4rtkit-daemon1795-21rtkit-daemon00:36:140
179699540,4rtkit-daemon1795-21rtkit-daemon23:12:291
179699530,4rtkit-daemon1795-21rtkit-daemon19:21:520
179699520,4rtkit-daemon1795-21rtkit-daemon21:07:110
179699520,4rtkit-daemon1795-21rtkit-daemon20:17:370
179699520,3rtkit-daemon1795-21rtkit-daemon20:51:201
179699500,4rtkit-daemon1795-21rtkit-daemon22:02:521
179699490,4rtkit-daemon1795-21rtkit-daemon20:03:360
179699490,4rtkit-daemon1795-21rtkit-daemon19:35:251
179699490,3rtkit-daemon1795-21rtkit-daemon21:39:391
179699480,3rtkit-daemon1795-21rtkit-daemon21:51:241
179699480,3rtkit-daemon0-21swapper/020:23:251
2233788994610,14cyclictest2267597-21taskset20:31:180
179699460,3rtkit-daemon1795-21rtkit-daemon22:16:080
179699460,3rtkit-daemon1795-21rtkit-daemon22:16:070
223378899457,14cyclictest2337630-21sed23:25:180
179699450,3rtkit-daemon0-21swapper/020:30:311
223379399449,9cyclictest2346557-21latency_hist23:50:021
223378899449,12cyclictest2340253-21taskset23:30:270
179699440,4rtkit-daemon1795-21rtkit-daemon20:47:551
179699430,3rtkit-daemon1795-21rtkit-daemon22:59:071
179699430,3rtkit-daemon0-21swapper/022:16:351
179699430,3rtkit-daemon0-21swapper/022:16:351
223378899429,14cyclictest2300193-21seq21:52:060
223378899429,12cyclictest2248068-21taskset19:40:530
223378899427,13cyclictest2296180-21apt-get21:45:020
223378899426,14cyclictest2242532-21appstreamcli19:30:040
223378899426,13cyclictest2336886-21cut23:25:010
2233788994210,13cyclictest2269559-21seq20:36:310
2233788994210,11cyclictest850-21runrttasks21:32:440
179699420,3rtkit-daemon0-21swapper/022:22:591
179699420,3rtkit-daemon0-21swapper/000:28:561
223378899419,12cyclictest2348086-21taskset23:50:410
223378899418,12cyclictest2324487-21taskset22:52:550
223378899417,12cyclictest2236489-21awk19:15:160
223378899416,15cyclictest2345254-21sed23:45:190
223378899416,14cyclictest2300732-21awk21:55:140
223378899416,13cyclictest2306536-21apt-get22:10:140
2233788994110,11cyclictest850-21runrttasks20:42:530
2233788994110,11cyclictest2352114-21taskset00:01:420
179699410,3rtkit-daemon1795-21rtkit-daemon23:37:111
179699410,3rtkit-daemon1795-21rtkit-daemon23:01:081
179699410,3rtkit-daemon0-21swapper/121:55:151
223378899409,11cyclictest2252133-21taskset19:52:490
223378899409,10cyclictest2289309-21taskset21:29:030
223378899407,11cyclictest2282949-21sed21:10:260
223378899406,14cyclictest2325930-21sed22:55:240
223378899406,14cyclictest2234076-21expr19:10:150
223378899406,13cyclictest2343518-21sed23:40:200
223378899402,27cyclictest0-21swapper/021:20:510
2233788994010,10cyclictest2253945-21taskset19:56:220
179699400,3rtkit-daemon0-21swapper/021:27:131
179699400,3rtkit-daemon0-21swapper/020:00:461
223379399393,12cyclictest2312188-21apt-get22:25:061
223378899399,13cyclictest2250318-21taskset19:49:120
223378899399,10cyclictest2364309-21taskset00:32:390
223378899399,10cyclictest2332794-21seq23:14:010
223378899398,10cyclictest2246431-21taskset19:39:260
223378899396,10cyclictest2319847-21awk22:40:220
223378899389,10cyclictest850-21runrttasks21:39:050
223378899389,10cyclictest2316150-21seq22:31:310
223378899388,9cyclictest2356686-21taskset00:14:320
223378899387,10cyclictest2257939-21sshd20:07:170
223378899385,12cyclictest0-21swapper/019:25:280
179699380,3rtkit-daemon0-21swapper/119:49:201
223379399378,8cyclictest2353053-21apt-get00:05:141
223379399371,20cyclictest2316487-21apt-get22:35:071
223378899377,10cyclictest2311031-21sed22:20:190
223378899376,12cyclictest2313578-21awk22:25:210
223378899375,13cyclictest0-21swapper/021:19:490
223378899375,13cyclictest0-21swapper/020:51:560
223378899375,11cyclictest2329146-21cut23:05:000
223378899375,11cyclictest2279043-21cat21:00:280
223378899374,13cyclictest0-21swapper/023:55:210
179699370,3rtkit-daemon0-21swapper/020:58:041
179699370,3rtkit-daemon0-21swapper/000:35:351
223379399361,20cyclictest2233915-21apt-get19:10:141
223379399361,12cyclictest2296180-21apt-get21:45:071
223379399361,12cyclictest2293812-21apt-get21:40:071
223379399360,11cyclictest2270125-21apt-get20:40:141
223378899365,10cyclictest2295533-21cat21:40:230
223378899364,18cyclictest0-21swapper/023:37:270
223378899364,18cyclictest0-21swapper/022:45:390
223378899364,18cyclictest0-21swapper/000:27:160
223378899364,18cyclictest0-21swapper/000:20:340
179699360,3rtkit-daemon1795-21rtkit-daemon23:05:031
179699360,3rtkit-daemon0-21swapper/021:24:341
179699360,3rtkit-daemon0-21swapper/000:31:561
179699360,1rtkit-daemon1795-21rtkit-daemon23:16:070
223378899354,6cyclictest2329213-21apt-get23:05:120
223378899354,18cyclictest0-21swapper/022:07:210
223378899354,18cyclictest0-21swapper/022:00:020
223378899354,18cyclictest0-21swapper/020:58:460
223378899354,18cyclictest0-21swapper/020:25:220
223378899354,18cyclictest0-21swapper/020:20:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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