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2026-08-06 - 20:52
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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 Thu Aug 06, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1591500993128,1cyclictest0-21swapper/312:40:003
1591500993027,1cyclictest0-21swapper/312:00:013
1591500992825,1cyclictest0-21swapper/310:20:383
1591500992723,1cyclictest0-21swapper/308:45:003
1591500992523,0cyclictest0-21swapper/307:45:003
1591500992522,1cyclictest0-21swapper/311:00:173
1591500992421,1cyclictest0-21swapper/310:00:153
1591500992420,1cyclictest0-21swapper/312:20:373
1591500992420,1cyclictest0-21swapper/310:40:003
1591500992420,1cyclictest0-21swapper/310:40:003
1591500992321,0cyclictest0-21swapper/310:30:003
1591500992320,1cyclictest0-21swapper/310:55:233
1591500992320,1cyclictest0-21swapper/309:40:163
1591500992320,1cyclictest0-21swapper/309:00:233
1591500992219,1cyclictest0-21swapper/312:00:093
1591500992219,1cyclictest0-21swapper/308:20:143
20603422211,10sleep22060388-21ntpq12:25:222
159150099212,15cyclictest2044528-21taskset12:15:193
1591500992119,1cyclictest0-21swapper/310:50:123
1591500992119,1cyclictest0-21swapper/309:40:013
1591500992118,1cyclictest0-21swapper/310:40:173
1591500992118,1cyclictest0-21swapper/308:30:123
1591500992117,1cyclictest0-21swapper/311:25:223
159150099202,14cyclictest1934956-21taskset11:05:273
159150099202,14cyclictest1934956-21taskset11:05:273
1591500992017,1cyclictest0-21swapper/311:20:273
1591500992017,1cyclictest0-21swapper/309:10:003
1591500992017,1cyclictest0-21swapper/308:10:013
159150099201,15cyclictest1998356-21taskset11:46:253
159150099201,15cyclictest1951051-21taskset11:16:303
159150099201,15cyclictest1770683-21taskset09:23:233
159150099201,15cyclictest1604191-21taskset07:15:183
159150099201,14cyclictest1728553-21taskset08:55:013
159150099201,14cyclictest1728553-21taskset08:55:013
1591500991917,1cyclictest0-21swapper/307:20:053
1591500991916,1cyclictest0-21swapper/311:40:113
1591500991916,1cyclictest0-21swapper/310:05:173
1591500991916,1cyclictest0-21swapper/309:15:003
1591500991916,1cyclictest0-21swapper/308:00:243
159150099191,14cyclictest2007248-21taskset11:54:103
159150099191,14cyclictest1755854-21taskset09:15:093
159150099191,14cyclictest1728284-21taskset08:54:523
159150099191,14cyclictest1618977-21taskset07:27:133
159150099191,13cyclictest1982057-21chrt11:35:263
159150099191,13cyclictest1881430-21turbostat10:35:003
159150099187,7cyclictest16319292sleep307:39:053
159150099182,13cyclictest2062564-21taskset12:29:513
1591500991816,1cyclictest0-21swapper/309:55:163
1591500991815,1cyclictest0-21swapper/311:10:213
1591500991815,1cyclictest0-21swapper/310:15:123
1591500991814,1cyclictest0-21swapper/309:50:143
159150099181,14cyclictest2023657-21taskset12:05:133
159150099181,14cyclictest1715818-21taskset08:45:113
159150099181,13cyclictest2037086-21taskset12:10:263
159150099181,13cyclictest1973686-21chrt11:30:213
159150099181,13cyclictest1707917-21taskset08:35:203
159150099181,13cyclictest1696131-21taskset08:28:233
159150099181,13cyclictest1651191-21taskset07:54:233
159150099172,12cyclictest1808934-21taskset09:45:293
1591500991715,1cyclictest0-21swapper/310:45:223
1591500991714,1cyclictest0-21swapper/308:10:163
159150099171,13cyclictest1842355-21taskset10:10:023
159150099171,13cyclictest1786923-21taskset09:34:583
159150099171,13cyclictest1683157-21taskset08:16:523
159150099171,13cyclictest1657363-21taskset07:56:163
159150099171,13cyclictest1625284-21taskset07:31:103
159150099171,12cyclictest2069211-21taskset12:31:313
159150099171,12cyclictest1771618-21chrt09:25:123
159150099171,12cyclictest1638827-21chrt07:45:133
159150099161,12cyclictest1591671-21taskset07:10:053
20229852151,11sleep22022989-21ssh12:04:092
19109692150,10sleep01911085-21wc10:50:260
20446762141,4sleep22044792-21python312:15:232
18083762141,4sleep11808419-21ntp_states09:45:241
20014152130,3sleep22002839-21kthreadcore11:50:182
17717892131,8sleep11771995-21hddtemp_smartct09:25:151
15911442130,1sleep30-21swapper/307:07:133
20682312122,7sleep22068268-21ntpq12:30:232
20681812121,7sleep12068230-21ld12:30:221
20209262121,8sleep02021044-21ntpq12:00:220
18173902121,8sleep21817394-21ssh09:51:582
17350012121,8sleep21734748-21sendmail-msp09:00:102
17222232121,7sleep21722256-21apt-get08:50:122
16023962121,8sleep21604190-21tr07:15:182
20700422111,7sleep02070048-21ssh12:33:540
20610732111,8sleep12061079-21ssh12:25:491
19815612110,9sleep21981611-21ld11:35:222
19774972111,3sleep11978446-21cut11:35:171
19438182110,8sleep11943824-21ssh11:13:121
19356682117,2sleep21888652-21kworker/u16:0+nfsiod11:07:162
19356682117,2sleep21888652-21kworker/u16:0+nfsiod11:07:162
19038662110,8sleep11903874-21ssh10:46:301
18895882111,7sleep11889329-21sendmail-msp10:40:041
18661702111,3sleep21866227-21ssh10:25:142
18295472111,3sleep20-21swapper/210:00:202
16710532110,3sleep21671160-21fschecks_time08:10:152
15904942111,4sleep00-21swapper/007:05:220
15852902111,5sleep10-21swapper/107:05:101
20761982100,8sleep12076241-21ntpq12:35:221
20378082100,2sleep10-21swapper/112:11:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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