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2026-07-04 - 05:13
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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 rackfslot7.osadl.org (updated Sat Jul 04, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1762377991110,110cyclictest0-21swapper/619:45:166
1762377991110,110cyclictest0-21swapper/619:45:166
1762376998910,59cyclictest1869580-21sed22:25:025
1762376998910,40cyclictest1939100-21aten2.4_rfpower00:30:105
1762376997718,58cyclictest1861433-21sed22:10:015
1762376997416,39cyclictest1802882-21timerandwakeup20:20:225
1762376997213,40cyclictest236199-21snmpd19:56:165
1762376997032,38cyclictest0-21swapper/523:30:205
1762376996911,39cyclictest1934058-21cat00:20:125
1762376996911,39cyclictest1934058-21cat00:20:125
1762376996810,39cyclictest1909623-21grep23:35:185
1762376996810,39cyclictest1899904-21aten2.4-expect23:20:115
176237699668,39cyclictest1769260-21sed19:20:175
1762376996627,39cyclictest0-21swapper/522:02:405
1762376996426,38cyclictest0-21swapper/500:12:005
176237699635,39cyclictest1795776-21/usr/sbin/munin20:10:125
1762376996022,19cyclictest1855301-21gdbus21:55:495
1762376995820,20cyclictest264-1kworker/5:1H+kblockd22:57:525
176237699580,39cyclictest1866881-21cat22:20:025
1762376995719,19cyclictest691ktimers/521:53:065
1762376995718,39cyclictest876-21mta-sts-daemon19:18:105
1762376995618,19cyclictest1875022-21munin-run22:35:025
1762376995618,19cyclictest1824341-21ntp_states21:00:205
1762373995614,0cyclictest0-21swapper/220:55:162
1762376995537,18cyclictest0-21swapper/500:25:145
1762376995518,18cyclictest1831337-21telnet21:15:125
176237699550,55cyclictest0-21swapper/520:03:545
1762376995419,15cyclictest0-21swapper/522:36:205
1762376995319,15cyclictest0-21swapper/523:00:035
1762376995314,39cyclictest1915215-21gcc23:45:205
1762376995314,38cyclictest1844810-21/usr/sbin/munin21:40:025
1762371995315,19cyclictest0-21swapper/019:45:160
1762371995315,19cyclictest0-21swapper/019:45:150
1762377995214,38cyclictest0-21swapper/619:20:166
1762376995233,19cyclictest0-21swapper/523:53:405
1762376995233,19cyclictest0-21swapper/520:08:245
1762373995233,19cyclictest0-21swapper/219:30:152
1762373995214,19cyclictest0-21swapper/200:30:132
1762377995113,19cyclictest0-21swapper/622:55:146
1762377995112,39cyclictest0-21swapper/623:15:166
1762376995133,18cyclictest0-21swapper/521:09:445
1762376995133,18cyclictest0-21swapper/520:42:125
1762376995132,19cyclictest0-21swapper/520:57:525
1762376995132,0cyclictest0-21swapper/519:51:325
1762376995113,19cyclictest1864168-21munin-run22:15:025
1762376995113,19cyclictest1815854-21wc20:45:185
1762376995112,39cyclictest0-21swapper/523:25:125
1762376995112,39cyclictest0-21swapper/500:00:185
1762373995114,18cyclictest0-21swapper/220:25:152
1762372995132,18cyclictest0-21swapper/121:35:151
1762376995032,18cyclictest0-21swapper/523:43:005
1762376995032,18cyclictest0-21swapper/522:41:245
1762376995032,18cyclictest0-21swapper/520:34:265
1762376995032,18cyclictest0-21swapper/520:25:275
1762376995032,18cyclictest0-21swapper/519:46:225
1762376995032,18cyclictest0-21swapper/519:46:215
1762376995031,19cyclictest0-21swapper/521:33:565
1762376995012,19cyclictest1847167-21latency_hist21:45:025
1762376995011,39cyclictest0-21swapper/523:08:485
1762376995011,19cyclictest0-21swapper/519:25:045
1762372995012,19cyclictest0-21swapper/120:20:151
1762378994911,19cyclictest0-21swapper/721:55:177
1762377994910,39cyclictest0-21swapper/621:10:186
1762376994930,19cyclictest0-21swapper/523:11:475
1762376994930,19cyclictest0-21swapper/519:30:045
1762376994930,19cyclictest0-21swapper/519:11:515
1762372994930,19cyclictest0-21swapper/122:35:151
176237699489,39cyclictest0-21swapper/523:15:025
1762376994830,18cyclictest0-21swapper/521:20:385
1762376994830,18cyclictest0-21swapper/520:37:005
1762376994830,18cyclictest0-21swapper/519:36:245
1762376994830,18cyclictest0-21swapper/500:35:085
1762376994829,19cyclictest0-21swapper/521:10:115
1762376994829,19cyclictest0-21swapper/520:54:245
1762373994811,18cyclictest0-21swapper/200:25:162
1762371994810,19cyclictest0-21swapper/019:10:160
176237799479,19cyclictest0-21swapper/620:05:156
176237699478,39cyclictest0-21swapper/523:55:095
1762376994729,18cyclictest0-21swapper/522:47:025
1762376994729,18cyclictest0-21swapper/522:25:485
1762376994729,18cyclictest0-21swapper/521:26:585
1762376994729,18cyclictest0-21swapper/500:19:045
1762376994729,18cyclictest0-21swapper/500:06:325
1762376994728,19cyclictest0-21swapper/522:51:065
1762376994728,19cyclictest0-21swapper/521:49:545
1762376994728,19cyclictest0-21swapper/520:19:325
1762375994728,19cyclictest0-21swapper/419:40:164
176237299479,19cyclictest0-21swapper/121:30:151
176237199478,19cyclictest0-21swapper/020:25:160
1762376994628,18cyclictest0-21swapper/519:41:145
176237299467,39cyclictest0-21swapper/119:50:151
1762372994627,19cyclictest0-21swapper/122:25:151
176237899457,19cyclictest0-21swapper/720:20:157
176237899456,39cyclictest0-21swapper/723:45:167
176237499445,20cyclictest501rcuc/321:55:173
176237199444,39cyclictest0-21swapper/022:05:150
1762378994324,19cyclictest0-21swapper/721:25:157
176237399435,19cyclictest0-21swapper/223:00:142
176237399435,19cyclictest0-21swapper/220:30:152
176237299434,19cyclictest0-21swapper/119:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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