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2025-12-28 - 08:21
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sun Dec 28, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24379942260,2sleep12437998-21cpuspeed_turbos00:05:141
205981999211,8cyclictest2119088-21chrt19:53:423
205981999211,16cyclictest2291529-21taskset22:10:153
205981999211,16cyclictest2291529-21taskset22:10:143
205981999211,16cyclictest2163578-21sleep20:30:013
205981999206,8cyclictest24756222sleep300:32:103
2059819992017,1cyclictest0-21swapper/322:25:013
2059819992017,1cyclictest0-21swapper/300:00:173
205981999201,16cyclictest2102867-21taskset19:40:193
205981999196,7cyclictest20742322sleep319:15:403
205981999194,8cyclictest2303345-21taskset22:16:213
2059819991916,1cyclictest0-21swapper/323:40:213
205981999191,14cyclictest2329327-21turbostat22:40:003
205981999191,14cyclictest2246385-21taskset21:34:293
205981999190,8cyclictest2092959-21taskset19:30:213
307598180,13rtkit-daemon2065763-21vmstat19:10:280
205981999188,8cyclictest0-21swapper/319:55:403
205981999185,6cyclictest24437542sleep300:08:013
2059819991815,1cyclictest0-21swapper/321:10:003
205981999181,13cyclictest2456299-21taskset00:16:433
205981999181,13cyclictest2456299-21taskset00:16:423
205981999181,13cyclictest2418204-21taskset23:46:293
205981999181,13cyclictest2386494-21taskset23:20:523
205981999181,13cyclictest2252753-21turbostat21:40:003
205981999178,7cyclictest0-21swapper/323:32:373
205981999178,6cyclictest23172492sleep322:30:163
205981999177,1cyclictest0-21swapper/321:45:213
205981999176,1cyclictest0-21swapper/323:00:113
2059819991714,1cyclictest0-21swapper/322:50:173
2059819991714,1cyclictest0-21swapper/320:30:263
2059819991714,1cyclictest0-21swapper/319:15:003
205981999171,13cyclictest2468739-21taskset00:25:253
205981999171,13cyclictest2221159-21taskset21:15:123
205981999171,13cyclictest2182223-21taskset20:40:383
205981999171,13cyclictest2175884-21taskset20:36:023
205981999171,12cyclictest2430874-21taskset23:56:113
205981999171,12cyclictest2373561-21taskset23:10:353
205981999171,12cyclictest2239243-21taskset21:25:223
205981999171,12cyclictest2201749-21chrt21:00:023
205981999171,12cyclictest2194958-21taskset20:52:093
205981999171,12cyclictest2125790-21taskset20:00:113
205981999171,12cyclictest2087295-21taskset19:27:203
205981999170,14cyclictest2220120-21taskset21:10:443
205981999170,13cyclictest2449963-21taskset00:11:343
205981999170,13cyclictest2424489-21chrt23:50:413
205981999170,13cyclictest2379546-21chrt23:15:243
205981999170,13cyclictest2290731-21chrt22:07:023
205981999170,13cyclictest2112814-21taskset19:49:363
205981999167,1cyclictest0-21swapper/321:55:193
205981999161,12cyclictest2405600-21taskset23:37:003
205981999161,12cyclictest2341275-21taskset22:45:173
205981999161,12cyclictest2316304-21taskset22:25:263
205981999161,12cyclictest2258701-21chrt21:40:343
205981999161,12cyclictest2144281-21chrt20:11:323
205981999161,12cyclictest2138127-21taskset20:09:013
205981999161,12cyclictest2080822-21taskset19:20:443
205981999161,11cyclictest2479572-21taskset00:35:193
205981999161,11cyclictest2099803-21taskset19:35:293
205981999160,13cyclictest2335833-21chrt22:44:103
205981999160,13cyclictest2188688-21taskset20:47:283
205981999160,12cyclictest2361483-21taskset23:05:023
205981999160,12cyclictest2233047-21taskset21:20:263
307598150,11rtkit-daemon2106587-21kworker/0:2+kacpid20:40:250
205981999151,4cyclictest0-21swapper/321:50:143
205981999151,4cyclictest0-21swapper/320:15:133
2059819991512,1cyclictest0-21swapper/320:55:153
205981999151,11cyclictest2462639-21chrt00:21:553
205981999151,11cyclictest2387066-21chrt23:25:053
205981999151,11cyclictest2157078-21taskset20:23:103
205981999150,12cyclictest2348776-21chrt22:55:073
205981999150,12cyclictest2284287-21taskset22:04:103
205981999150,12cyclictest2284287-21taskset22:04:093
21891782131,9sleep02189333-21diskstats20:50:140
20536322130,2sleep30-21swapper/319:05:063
307598120,9rtkit-daemon2226809-21kworker/0:1+kacpid22:54:170
24697932121,8sleep22469936-21df00:30:142
307598110,6rtkit-daemon2353666-21kthreadcore22:55:190
307598100,6rtkit-daemon493-21gmain21:21:111
307598100,6rtkit-daemon493-21gmain19:58:270
307598100,6rtkit-daemon3256-21sendmail-mta20:55:430
307598100,6rtkit-daemon3256-21sendmail-mta00:21:041
307598100,6rtkit-daemon316-21systemd-udevd23:09:440
307598100,6rtkit-daemon316-21systemd-udevd22:17:430
307598100,6rtkit-daemon2066288-21munin-node22:30:130
307598100,5rtkit-daemon475-21wpa_supplicant20:46:110
307598100,5rtkit-daemon433-21rpcbind23:47:241
307598100,3rtkit-daemon217-21plymouthd22:37:280
307598100,2rtkit-daemon217-21plymouthd19:52:110
24697572101,1sleep10-21swapper/100:30:131
24441882101,4sleep22444200-21apt-get00:10:142
23699452100,7sleep02371943-21grep23:10:160
23667162100,7sleep22361496-21/usr/sbin/munin23:05:222
23605532100,7sleep02360797-21sed23:00:220
22088092100,7sleep02209647-21grep21:05:170
21638072101,5sleep12163840-21apt-get20:30:161
30759890,5rtkit-daemon3333005-21packagekitd00:26:151
30759890,5rtkit-daemon2158173-21cut20:25:170
30759890,5rtkit-daemon2150028-21/usr/sbin/munin20:15:210
30759890,5rtkit-daemon2059813-21cyclictest19:20:190
30759890,4rtkit-daemon475-21wpa_supplicant21:30:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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