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2025-12-05 - 10:37
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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 Fri Dec 05, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20744422910,1sleep00-21swapper/021:40:150
1875927992522,1cyclictest0-21swapper/321:00:213
1875927992421,1cyclictest0-21swapper/321:30:003
1875927992219,1cyclictest0-21swapper/320:25:133
1875927992219,1cyclictest0-21swapper/320:00:013
1875927992219,1cyclictest0-21swapper/300:08:263
1875927992218,1cyclictest0-21swapper/320:35:013
1875927992118,1cyclictest0-21swapper/320:40:003
1875927992118,1cyclictest0-21swapper/300:00:003
1875927992117,1cyclictest60950irq/168-eno2:tx-322:20:003
187592799203,13cyclictest2251351-21turbostat23:30:003
187592799203,13cyclictest2251351-21turbostat23:30:003
1875927992017,1cyclictest0-21swapper/323:15:223
1875927992017,1cyclictest0-21swapper/322:45:163
1875927992017,1cyclictest0-21swapper/319:45:183
1875927991917,1cyclictest0-21swapper/319:15:013
1875927991916,1cyclictest0-21swapper/322:37:233
187592799191,14cyclictest2210978-21turbostat23:05:013
187592799191,13cyclictest1897247-21chrt19:25:013
1875927991815,1cyclictest0-21swapper/321:57:233
1875927991815,1cyclictest0-21swapper/319:15:003
187592799181,14cyclictest2217722-21taskset23:06:583
187592799181,13cyclictest2332545-21turbostat00:20:003
187592799181,13cyclictest2138466-21taskset22:20:013
187592799181,13cyclictest2080440-21taskset21:42:463
187592799181,12cyclictest2340995-21taskset00:25:023
1875927991714,1cyclictest0-21swapper/322:55:253
1875927991714,1cyclictest0-21swapper/322:05:193
1875927991714,1cyclictest0-21swapper/321:35:153
1875927991714,1cyclictest0-21swapper/321:10:003
1875927991714,1cyclictest0-21swapper/320:45:013
1875927991714,1cyclictest0-21swapper/319:20:213
1875927991714,1cyclictest0-21swapper/300:20:173
187592799171,12cyclictest2316916-21chrt00:10:143
187592799171,12cyclictest2306797-21taskset00:01:203
187592799171,12cyclictest2289761-21taskset23:50:233
187592799171,12cyclictest2267796-21taskset23:40:143
187592799171,12cyclictest2091843-21taskset21:50:163
187592799171,12cyclictest2006936-21taskset20:50:213
187592799170,9cyclictest1915835-21taskset19:39:573
23083992161,11sleep12308442-21sh00:05:001
21575012161,8sleep12159565-21grep22:30:231
21315672166,7sleep12132683-21cut22:15:161
187592799166,7cyclictest23550452sleep300:30:433
1875927991613,1cyclictest0-21swapper/320:20:183
1875927991612,1cyclictest0-21swapper/321:21:283
187592799161,12cyclictest2282928-21chrt23:47:503
187592799161,12cyclictest2257383-21taskset23:30:283
187592799161,12cyclictest2225768-21chrt23:11:553
187592799161,12cyclictest2191873-21taskset22:50:203
187592799161,12cyclictest2127995-21chrt22:10:403
187592799161,12cyclictest2063451-21chrt21:30:403
187592799161,12cyclictest2029325-21chrt21:10:083
187592799161,12cyclictest2016361-21taskset20:58:383
187592799161,12cyclictest1963601-21taskset20:15:183
187592799161,12cyclictest1959376-21taskset20:11:053
187592799160,13cyclictest2266676-21chrt23:38:163
187592799160,13cyclictest2043419-21chrt21:17:393
187592799160,13cyclictest2043419-21chrt21:17:383
187592799160,12cyclictest2154646-21taskset22:30:073
187592799160,12cyclictest2089446-21taskset21:49:563
187592799160,12cyclictest1947150-21taskset20:04:563
187592799157,6cyclictest23571412sleep300:35:053
187592799151,11cyclictest2241522-21taskset23:20:573
187592799151,11cyclictest2111866-21taskset22:00:383
187592799151,11cyclictest2003627-21chrt20:46:003
187592799151,11cyclictest1908987-21taskset19:30:223
187592799150,12cyclictest2176854-21taskset22:40:453
187592799150,12cyclictest1953270-21taskset20:08:053
187592799150,12cyclictest1917519-21taskset19:40:163
22113022141,10sleep12211311-21ssh23:05:131
187592799141,10cyclictest2146513-21taskset22:25:063
187592799141,10cyclictest1934250-21taskset19:50:263
21776572139,1sleep10-21swapper/122:42:421
20630532130,9sleep12063302-21grep21:30:311
147598130,8rtkit-daemon2090004-21ssh21:50:131
20439222120,9sleep12043886-21/usr/sbin/munin21:20:131
19664882121,1sleep00-21swapper/020:20:130
147598120,8rtkit-daemon2140783-21kthreadcore22:20:190
147598120,7rtkit-daemon1540-21sendmail-mta00:21:320
23488462110,8sleep02348854-21ssh00:30:000
22763462110,8sleep12276545-21hddtemp_smartct23:45:161
22363702110,8sleep22237225-21grep23:20:172
22022702111,7sleep22202276-21ssh22:58:332
21532082111,8sleep12153216-21ssh22:27:221
20344182110,8sleep12029347-21/usr/sbin/munin21:10:191
19335722110,8sleep01933722-21ntp_kernel_pll_19:50:210
19224232111,3sleep01922575-21df_inode19:45:150
147598110,7rtkit-daemon2331070-21ssh00:16:370
147598110,7rtkit-daemon2124795-21kthreadcore22:10:200
147598110,7rtkit-daemon1540-21sendmail-mta00:09:082
147598110,5rtkit-daemon214-21plymouthd20:25:271
147598110,4rtkit-daemon720-21snmpd00:13:110
23412072101,6sleep12127589-21kworker/u16:3+rpciod00:25:161
22495642106,2sleep2431ktimers/223:25:552
22495642106,2sleep2431ktimers/223:25:542
22253802101,6sleep12225386-21ssh23:10:581
21551262102,5sleep22155388-21irqcore22:30:202
21134352100,7sleep12113439-21ssh22:04:211
20355442100,7sleep22035550-21ssh21:11:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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