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2025-11-19 - 22:37
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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 Wed Nov 19, 2025 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1886703992623,1cyclictest0-21swapper/312:15:003
1886703992420,1cyclictest0-21swapper/311:35:013
147598220,2rtkit-daemon0-21swapper/209:17:442
1886703992118,1cyclictest0-21swapper/312:40:003
1886703992118,1cyclictest0-21swapper/310:55:183
1886703992118,1cyclictest0-21swapper/310:05:223
1886703992118,1cyclictest0-21swapper/307:50:013
188670399211,5cyclictest2120858-21sleep10:00:003
1886703992017,1cyclictest0-21swapper/309:35:193
1886703992017,1cyclictest0-21swapper/309:20:173
188670399201,14cyclictest1933048-21sleep07:45:013
188670399193,12cyclictest1907839-21turbostat07:25:013
1886703991916,1cyclictest0-21swapper/310:25:213
188670399191,14cyclictest2302500-21taskset11:50:213
188670399191,13cyclictest1901584-21turbostat07:20:003
188670399191,13cyclictest1886781-21taskset07:10:003
1886703991816,1cyclictest0-21swapper/311:40:003
1886703991816,1cyclictest0-21swapper/308:00:013
1886703991815,1cyclictest0-21swapper/311:15:173
1886703991815,1cyclictest0-21swapper/310:20:003
1886703991815,1cyclictest0-21swapper/310:10:163
188670399181,13cyclictest1977344-21sleep08:20:003
188670399181,12cyclictest2194171-21taskset10:45:133
23662112170,1sleep22368224-21kthreadcore12:30:212
188670399177,7cyclictest2298772-21chrt11:50:003
188670399177,7cyclictest20671252sleep309:25:183
1886703991714,1cyclictest0-21swapper/311:55:173
1886703991714,1cyclictest0-21swapper/311:10:253
1886703991714,1cyclictest0-21swapper/309:50:193
1886703991714,1cyclictest0-21swapper/308:50:243
188670399171,13cyclictest2177506-21chrt10:34:343
188670399171,12cyclictest2347427-21sleep12:20:013
188670399171,12cyclictest2323010-21turbostat12:05:003
188670399171,12cyclictest2264643-21taskset11:25:433
188670399171,12cyclictest2103219-21chrt09:46:253
188670399171,12cyclictest2007939-21taskset08:40:263
188670399171,12cyclictest1989834-21taskset08:29:563
1886703991614,1cyclictest0-21swapper/311:40:233
1886703991613,1cyclictest0-21swapper/312:30:183
1886703991613,1cyclictest0-21swapper/312:20:163
1886703991613,1cyclictest0-21swapper/311:00:193
1886703991613,1cyclictest0-21swapper/309:30:193
1886703991613,1cyclictest0-21swapper/309:01:483
1886703991613,1cyclictest0-21swapper/309:01:473
188670399161,13cyclictest1892070-21taskset07:10:213
188670399161,12cyclictest2362448-21chrt12:27:163
188670399161,12cyclictest2202165-21chrt10:50:053
188670399161,12cyclictest2178034-21taskset10:35:153
188670399161,12cyclictest2127037-21taskset10:00:373
188670399161,12cyclictest2095699-21chrt09:42:413
188670399161,12cyclictest2027444-21taskset08:59:363
188670399161,12cyclictest2014631-21chrt08:46:183
188670399161,12cyclictest2001891-21taskset08:35:243
188670399161,12cyclictest1912924-21taskset07:25:193
188670399160,13cyclictest2329254-21taskset12:05:563
188670399160,13cyclictest1982760-21chrt08:20:213
188670399160,12cyclictest1920575-21taskset07:35:013
21239382150,2sleep10-21swapper/110:00:191
1886703991512,1cyclictest0-21swapper/311:20:243
1886703991512,1cyclictest0-21swapper/311:05:263
1886703991512,1cyclictest0-21swapper/310:40:173
188670399151,11cyclictest2159431-21taskset10:20:353
188670399151,11cyclictest2048637-21taskset09:15:083
188670399151,11cyclictest2034249-21taskset09:05:063
188670399151,11cyclictest1995836-21taskset08:31:523
188670399151,11cyclictest1952970-21chrt08:00:173
188670399151,11cyclictest1939556-21taskset07:50:083
188670399151,11cyclictest1914525-21taskset07:30:173
188670399150,12cyclictest2040551-21taskset09:10:113
188670399150,12cyclictest1970997-21chrt08:14:003
20076862141,10sleep02007800-21awk08:40:240
188670399141,11cyclictest1964483-21taskset08:05:473
23005912130,10sleep22302498-21cut11:50:202
20942122131,9sleep22088913-21/usr/sbin/munin09:40:252
21850052121,8sleep22185011-21ssh10:38:242
21057192120,1sleep22106651-21kthreadcore09:50:192
20647782120,1sleep12040282-21diskmemload09:25:121
20500962120,9sleep02051319-21grep09:15:170
19321892120,9sleep21932311-21grep07:40:222
147598120,8rtkit-daemon2193033-21ssh10:43:120
147598120,8rtkit-daemon2047100-21ssh09:12:062
23207162110,1sleep02320964-21users12:00:250
22732042110,8sleep22273212-21ssh11:32:062
22484082110,8sleep02248416-21ssh11:15:410
22243962110,8sleep02224404-21ssh11:01:100
21871332110,8sleep12188261-21cut10:40:191
21794582111,8sleep10-21swapper/110:35:221
20985012110,2sleep12100278-21kthreadcore09:45:211
20866302110,8sleep02086638-21ssh09:35:300
147598110,7rtkit-daemon2095251-21ssh09:41:430
147598110,7rtkit-daemon1540-21sendmail-mta09:28:140
147598110,5rtkit-daemon214-21plymouthd07:17:012
147598110,3rtkit-daemon2176450-21ssh10:32:060
23390922100,3sleep22339104-21apt-get12:15:022
22259672100,8sleep22225975-21ssh11:04:492
21780392101,5sleep02178073-21apt-get10:35:160
21766882100,7sleep22176694-21ssh10:32:462
21619162101,4sleep12161949-21apt-get10:25:161
20581892100,7sleep12059970-21kthreadcore09:20:201
147598100,6rtkit-daemon295-21systemd-journal09:54:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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