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2026-06-23 - 17:02
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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 376 highest latencies:
System rackeslot8.osadl.org (updated Tue Jun 23, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1873221992621,3cyclictest2300926-21taskset12:00:183
1873221992521,1cyclictest0-21swapper/310:10:273
1873221992421,1cyclictest0-21swapper/309:40:113
1873221992320,1cyclictest0-21swapper/312:10:233
1873221992319,1cyclictest0-21swapper/311:40:113
1873221992319,1cyclictest0-21swapper/309:55:003
1873221992219,1cyclictest0-21swapper/310:35:193
1873221992219,1cyclictest0-21swapper/309:35:153
1873221992210,9cyclictest2009238-21taskset08:50:223
1873221992118,1cyclictest0-21swapper/312:25:233
1873221992118,1cyclictest0-21swapper/308:20:093
1873221992118,1cyclictest0-21swapper/308:00:133
1873221992117,1cyclictest0-21swapper/311:00:083
187322199202,13cyclictest2131808-21chrt10:15:143
1873221992018,1cyclictest0-21swapper/311:30:003
1873221992017,1cyclictest0-21swapper/310:25:013
1873221992017,1cyclictest0-21swapper/307:40:043
1873221992017,1cyclictest0-21swapper/307:40:003
187322199201,15cyclictest2223595-21taskset11:10:233
187322199201,15cyclictest2177240-21taskset10:41:003
19720522190,3sleep21972055-21cpuspeed_turbos08:25:152
1873221991916,1cyclictest0-21swapper/312:20:013
1873221991916,1cyclictest0-21swapper/310:30:213
1873221991916,1cyclictest0-21swapper/310:25:183
1873221991916,1cyclictest0-21swapper/310:00:203
1873221991916,1cyclictest0-21swapper/307:50:273
187322199191,15cyclictest2216377-21taskset11:05:343
187322199191,14cyclictest2089206-21taskset09:45:193
187322199191,14cyclictest2043358-21taskset09:15:283
187322199191,14cyclictest2016811-21taskset09:00:043
187322199191,13cyclictest2289107-21taskset11:55:013
187322199191,13cyclictest2249821-21chrt11:30:113
187322199191,13cyclictest2068692-21turbostat09:35:003
187322199182,12cyclictest2016563-21turbostat09:00:013
1873221991816,1cyclictest0-21swapper/309:25:003
1873221991815,1cyclictest0-21swapper/312:05:163
1873221991815,1cyclictest0-21swapper/311:35:253
1873221991815,1cyclictest0-21swapper/311:20:103
187322199181,14cyclictest2059732-21taskset09:27:073
187322199181,13cyclictest2358739-21taskset12:37:273
187322199181,13cyclictest2329710-21taskset12:20:193
187322199181,13cyclictest2201280-21taskset10:57:323
187322199181,13cyclictest2178942-21taskset10:45:053
187322199181,13cyclictest2100548-21taskset09:55:133
187322199181,13cyclictest1958566-21taskset08:13:303
187322199181,13cyclictest1900673-21taskset07:25:553
187322199181,13cyclictest1887045-21chrt07:15:203
187322199181,12cyclictest2023228-21taskset09:05:013
21928442171,2sleep00-21swapper/010:50:520
187322199177,7cyclictest19392532sleep307:56:433
1873221991714,1cyclictest0-21swapper/308:45:223
1873221991714,1cyclictest0-21swapper/308:40:153
1873221991714,1cyclictest0-21swapper/308:20:013
1873221991714,1cyclictest0-21swapper/307:11:193
1873221991713,1cyclictest0-21swapper/307:45:123
187322199171,13cyclictest2287690-21taskset11:51:483
187322199171,13cyclictest2232498-21taskset11:16:443
187322199171,13cyclictest2193627-21taskset10:52:593
187322199171,13cyclictest1984266-21taskset08:32:383
187322199171,13cyclictest1907289-21taskset07:33:363
187322199171,12cyclictest2344213-21taskset12:30:053
187322199171,12cyclictest2280950-21taskset11:49:563
187322199171,12cyclictest2116062-21chrt10:05:113
187322199171,12cyclictest1946201-21taskset08:05:043
187322199171,11cyclictest1888436-21chrt07:20:093
1873221991613,1cyclictest0-21swapper/308:25:293
187322199161,13cyclictest1990686-21taskset08:37:433
187322199161,12cyclictest2029677-21taskset09:10:023
23289792141,9sleep22329708-21cut12:20:192
19719132140,10sleep11972051-21expr08:25:151
19076722141,4sleep11907704-21apt-get07:35:121
18670982143,6sleep11867099-21apt-get07:05:131
23576242131,2sleep10-21swapper/112:35:261
23255102131,10sleep02325838-21grep12:15:200
22706102131,8sleep02270771-21/usr/sbin/munin11:40:200
20439152130,9sleep12043921-21ssh09:17:031
19141152132,3sleep01914147-21apt-get07:40:120
22736512121,8sleep02273771-21grep11:45:170
22554452121,8sleep12255631-21users11:30:261
22081472120,9sleep12202507-21/usr/sbin/munin11:00:271
22019352120,9sleep22201939-21ssh10:59:202
21311962121,8sleep22131202-21ssh10:14:262
20694502125,5sleep22070106-21cut09:35:162
20246422120,2sleep02026163-21kthreadcore09:05:150
19978632121,8sleep21997555-21/usr/sbin/munin08:45:172
19331022120,8sleep11933131-21/usr/sbin/munin07:55:001
18723602120,8sleep21867066-21/usr/sbin/munin07:05:262
23114202110,8sleep12311422-21ssh12:07:071
22812972111,6sleep1222-21plymouthd11:50:111
22097802111,7sleep2222-21plymouthd11:04:092
20980742111,7sleep12098244-21timerwakeupswit09:50:271
19911452110,8sleep01990925-21sendmail-msp08:40:060
19899602110,8sleep01990007-21ntp_states08:35:250
19656112110,9sleep11965685-21fschecks_time08:20:141
19577692111,7sleep01957818-21ntpq08:10:230
19386452110,7sleep01938677-21ntpq07:55:230
18798562110,8sleep01879868-21munin-node07:15:020
23502082100,7sleep02350214-21ssh12:30:360
23123462100,3sleep0222-21plymouthd12:09:430
22719642100,7sleep22271970-21ssh11:41:582
22499772100,7sleep02250046-21grep11:30:130
22317602101,2sleep02232009-21unixbench_singl11:15:260
22312842100,2sleep2222-21plymouthd11:15:202
22169232100,7sleep22216929-21ssh11:07:062
21711052101,6sleep22170793-21sendmail-msp10:40:122
21525452101,6sleep02152691-21ntpq10:25:220
20168092101,6sleep12016593-21sendmail-msp09:00:031
20039952102,4sleep0222-21plymouthd08:50:120
20035242100,2sleep1222-21plymouthd08:47:511
19402042100,7sleep01940518-21cut08:00:170
19258392105,2sleep01925945-21/usr/sbin/munin07:45:250
19066112101,5sleep01906715-21python307:30:260
18975762100,7sleep21899299-21kthreadcore07:25:192
18763312101,6sleep21878175-21kthreadcore07:10:192
2350980290,1sleep20-21swapper/212:32:462
2328478291,5sleep12114365-21kworker/u16:2+rpciod12:20:101
2326877290,5sleep22326883-21ssh12:16:222
2326641292,4sleep1222-21plymouthd12:15:451
2241968291,5sleep1222-21plymouthd11:25:131
2210437291,6sleep12210392-21/usr/sbin/munin11:05:121
2208926290,2sleep0222-21plymouthd11:01:510
2195548291,6sleep02196160-21kthreadcore10:55:170
2184939290,7sleep12184945-21ssh10:45:401
2138523290,1sleep0222-21plymouthd10:17:560
2131791291,4sleep22131799-21apt-get10:15:142
2125334290,6sleep02125395-21kthreadcore10:10:190
2115993291,5sleep22115999-21ssh10:05:072
2101764291,5sleep22102937-21tr09:55:172
2052081290,6sleep02029421-21diskmemload09:22:480
2044756290,1sleep00-21swapper/009:19:190
1952570290,2sleep1171rcu_preempt08:10:121
1926476290,1sleep10-21swapper/107:47:311
1907379290,5sleep1222-21plymouthd07:34:441
1894559290,2sleep0222-21plymouthd07:24:430
1874833290,6sleep11876328-21kthreadcore07:10:181
1873115290,2sleep30-21swapper/307:09:563
2359641281,4sleep20-21swapper/212:39:562
2319546280,2sleep10-21swapper/112:12:521
2317975282,3sleep22318072-21ld12:10:212
2315647281,4sleep02317392-21cut12:10:190
2311753281,4sleep22201493-21kworker/u16:3+xprtiod12:08:042
2295792281,4sleep0222-21plymouthd11:57:360
2286693281,4sleep22286776-21grep11:50:242
2281505281,4sleep02281636-21grep11:50:140
2263759280,2sleep12263765-21ssh11:36:121
2257667282,3sleep22257662-21apt-get11:35:132
2250240280,2sleep22250765-21irqrtprio11:30:152
2240614281,4sleep2222-21plymouthd11:22:262
2240095280,1sleep0222-21plymouthd11:20:590
2223495282,4sleep22223586-21ntpq11:10:232
2210430281,3sleep02210426-21apt-get11:05:120
2180129280,6sleep02180732-21kthreadcore10:45:190
2177830280,1sleep00-21swapper/010:42:460
2154958280,5sleep22029421-21diskmemload10:30:012
2141074281,4sleep12141766-21cut10:20:181
2131138281,5sleep10-21swapper/110:14:131
2122322280,1sleep10-21swapper/110:06:311
2121313281,4sleep02121356-21ntpq10:05:210
2107848281,4sleep12107879-21sendmail-msp10:00:001
2106379280,1sleep10-21swapper/109:55:561
2091067281,4sleep02091073-21ssh09:46:570
2076805280,5sleep02076846-21ssh09:40:120
2067515281,4sleep12067521-21ssh09:31:511
2061075281,3sleep22061112-21apt-get09:30:112
2052089281,4sleep22052095-21ssh09:22:502
2036858280,1sleep10-21swapper/109:14:101
2028005282,4sleep244-21ksoftirqd/209:05:172
2022023281,4sleep22022065-21ntpq09:00:202
2006578280,5sleep22008397-21kthreadcore08:50:182
1977848281,4sleep0222-21plymouthd08:27:550
1964811280,1sleep10-21swapper/108:16:211
1953014280,5sleep21953535-21irqrtprio08:10:172
1945872280,5sleep2222-21plymouthd08:04:072
1939257280,2sleep2222-21plymouthd07:56:462
1938409281,4sleep11938549-21ntpq07:55:201
1926977280,4sleep01927134-21diskstats07:50:140
1920038280,2sleep2222-21plymouthd07:42:142
1913827280,1sleep10-21swapper/107:40:001
1887850280,5sleep2222-21plymouthd07:16:122
1884591280,5sleep11886314-21cut07:15:191
1872908280,1sleep00-21swapper/007:07:160
2358876270,1sleep0222-21plymouthd12:37:490
2344284271,2sleep10-21swapper/112:30:121
2342501270,3sleep2222-21plymouthd12:26:042
2336393271,3sleep12336430-21apt-get12:25:111
2335872270,4sleep0222-21plymouthd12:24:260
2296996271,1sleep2171rcu_preempt12:00:102
2296974270,5sleep1872-21in:imuxsock12:00:051
2295001271,4sleep12295009-21ssh11:55:281
2279499270,1sleep2171rcu_preempt11:45:552
2257831270,4sleep02257935-21fschecks_time11:35:150
2244963270,4sleep22246690-21grep11:25:182
2241811270,1sleep00-21swapper/011:25:040
2234062270,5sleep12234209-21df11:20:121
2231507271,4sleep12231540-21ntpq11:15:231
2193871270,1sleep10-21swapper/110:53:381
2163582271,4sleep02164056-21sed10:35:160
2154487270,1sleep10-21swapper/110:28:481
2138472271,3sleep1222-21plymouthd10:17:491
2113463270,4sleep22113504-21ntpq10:00:222
2100667270,4sleep02100823-21if_err_eno209:55:150
2092555270,4sleep02092717-21diskstats09:50:140
2091151270,1sleep12091157-21ssh09:47:101
2076847271,3sleep10-21swapper/109:40:131
2075886270,5sleep12029421-21diskmemload09:38:161
2061784271,3sleep02062514-21ssh09:30:170
2060411270,1sleep10-21swapper/109:29:021
2059374271,3sleep0222-21plymouthd09:26:120
2050736272,3sleep12050769-21ntpq09:20:241
2029736270,3sleep00-21swapper/009:10:130
2015428271,3sleep22015568-21ntpq08:55:192
2012888270,4sleep02014713-21cut08:55:170
1997283271,3sleep21997339-21908:45:012
1983491271,2sleep10-21swapper/108:30:201
1971580271,3sleep2222-21plymouthd08:24:442
1959823270,4sleep21960645-21grep08:15:182
1951986271,3sleep2222-21plymouthd08:05:562
1945621271,3sleep1222-21plymouthd08:00:541
1926939271,3sleep21926972-21apt-get07:50:122
1926442270,3sleep2222-21plymouthd07:47:042
1908282270,4sleep2222-21plymouthd07:35:172
1900648270,4sleep0222-21plymouthd07:25:370
2343696260,3sleep02343702-21ssh12:29:270
2297042260,2sleep00-21swapper/012:00:110
2295353260,1sleep20-21swapper/211:56:222
2273440260,3sleep12273444-21ssh11:45:141
2271629260,1sleep10-21swapper/111:40:571
2221218261,2sleep00-21swapper/011:10:210
2218305260,3sleep1222-21plymouthd11:10:141
2201266260,3sleep12201272-21ssh10:57:311
2194360261,3sleep22194366-21ssh10:54:592
2184301260,3sleep2222-21plymouthd10:45:252
2169476260,3sleep2222-21plymouthd10:36:272
2169288260,1sleep10-21swapper/110:35:581
2162606260,4sleep12043948-21kworker/u16:3+rpciod10:34:251
2155225260,1sleep00-21swapper/010:30:030
2152734260,3sleep22152789-21ntpq10:25:242
2146197260,1sleep00-21swapper/010:22:420
2141767261,2sleep20-21swapper/210:20:192
2092453260,3sleep272-21kcompactd009:50:042
2087483261,2sleep20-21swapper/209:45:192
2076658261,3sleep22076539-21sendmail-msp09:40:022
2069190260,1sleep00-21swapper/009:35:140
2059488260,4sleep2222-21plymouthd09:26:302
2037466260,2sleep22037507-21ssh09:15:122
2026165260,4sleep12028004-21cut09:05:161
2022723260,1sleep00-21swapper/009:01:510
2010367260,3sleep1222-21plymouthd08:55:101
2005362261,2sleep10-21swapper/108:50:171
2003441260,1sleep00-21swapper/008:46:470
1997104260,3sleep1222-21plymouthd08:42:431
1990642260,1sleep1222-21plymouthd08:37:101
1984380260,3sleep2222-21plymouthd08:34:062
1978745261,2sleep00-21swapper/008:30:150
1970562260,3sleep01970656-21ntpq08:20:210
1947576261,2sleep00-21swapper/008:05:180
1901259260,3sleep21901292-21apt-get07:30:122
1896256260,4sleep11897575-21grep07:25:181
1894491260,1sleep20-21swapper/207:23:542
1894366260,3sleep10-21swapper/107:22:171
1879457260,1sleep00-21swapper/007:13:140
2171101250,2sleep12171096-21apt-get10:40:111
2108198251,2sleep00-21swapper/010:00:120
2031252250,3sleep22032921-21grep09:10:192
1989826250,3sleep21989914-21ntpq08:35:232
1964780250,2sleep0222-21plymouthd08:15:560
1948531250,2sleep10-21swapper/108:05:191
1913519250,3sleep00-21swapper/007:36:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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