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2026-08-02 - 11:04
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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 highest latencies:
System rackeslot8.osadl.org (updated Sun Aug 02, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194389721320,1sleep10-21swapper/119:55:171
20218072310,1sleep00-21swapper/020:55:170
1882646992623,1cyclictest0-21swapper/300:00:023
1882646992522,1cyclictest0-21swapper/321:10:153
1882646992522,1cyclictest0-21swapper/320:20:273
1882646992421,1cyclictest0-21swapper/321:00:013
1882646992418,3cyclictest2258068-21taskset23:30:003
1882646992320,1cyclictest0-21swapper/322:20:133
1882646992320,1cyclictest0-21swapper/321:20:283
1882646992320,1cyclictest0-21swapper/321:20:013
1882646992219,1cyclictest0-21swapper/321:45:143
1882646992118,1cyclictest0-21swapper/323:45:183
1882646992118,1cyclictest0-21swapper/321:40:163
188264699211,14cyclictest2226642-21taskset23:10:003
188264699211,14cyclictest2156368-21chrt22:25:133
188264699202,12cyclictest2062381-21chrt21:25:113
1882646992018,1cyclictest0-21swapper/323:30:283
1882646992017,1cyclictest0-21swapper/322:15:243
1882646992016,1cyclictest0-21swapper/323:15:253
188264699201,15cyclictest2114844-21taskset21:55:263
188264699201,15cyclictest1952759-21taskset20:00:203
188264699201,14cyclictest2266099-21chrt23:35:143
188264699201,14cyclictest1899484-21taskset19:20:193
188264699192,13cyclictest2327705-21taskset00:12:503
1882646991916,1cyclictest0-21swapper/323:00:243
1882646991916,1cyclictest0-21swapper/322:40:333
1882646991916,1cyclictest0-21swapper/300:20:153
188264699191,14cyclictest2075856-21taskset21:30:243
188264699191,14cyclictest1987725-21taskset20:30:143
188264699191,13cyclictest2351872-21taskset00:29:263
188264699191,13cyclictest2304862-21taskset23:59:553
188264699191,13cyclictest2289718-21chrt23:50:133
188264699191,13cyclictest2273836-21chrt23:40:113
188264699191,13cyclictest1974167-21taskset20:15:593
1882646991910,6cyclictest2101266-21turbostat21:54:553
18783372190,9sleep134-21ksoftirqd/119:05:171
188264699189,6cyclictest23672402sleep300:38:373
1882646991816,1cyclictest0-21swapper/322:00:213
1882646991815,1cyclictest0-21swapper/323:15:003
1882646991815,1cyclictest0-21swapper/322:45:283
1882646991815,1cyclictest0-21swapper/321:05:213
188264699181,13cyclictest2242474-21taskset23:20:023
188264699181,13cyclictest2209320-21taskset22:55:403
188264699181,13cyclictest2132545-21turbostat22:10:003
188264699181,13cyclictest2031440-21chrt21:00:253
188264699181,13cyclictest1986765-21taskset20:25:253
188264699181,13cyclictest1942965-21taskset19:55:153
188264699181,13cyclictest1919340-21taskset19:35:183
188264699181,13cyclictest1892147-21taskset19:15:173
188264699180,14cyclictest2083875-21taskset21:35:303
23212032171,12sleep22321320-21/usr/sbin/munin00:10:142
22635012171,12sleep12263548-21ntpq23:30:231
1882646991714,1cyclictest0-21swapper/322:30:323
1882646991714,1cyclictest0-21swapper/319:40:143
188264699171,13cyclictest2139441-21taskset22:12:263
188264699171,13cyclictest2006324-21taskset20:40:453
188264699171,13cyclictest1994109-21chrt20:35:123
188264699171,13cyclictest1888869-21taskset19:13:293
188264699171,12cyclictest2352365-21taskset00:30:103
188264699171,12cyclictest2319182-21taskset00:05:573
188264699171,12cyclictest2018915-21taskset20:50:273
188264699171,12cyclictest2007573-21taskset20:45:183
188264699171,12cyclictest1961959-21taskset20:10:143
188264699171,12cyclictest1910938-21taskset19:30:133
1882646991613,1cyclictest0-21swapper/300:15:163
188264699161,12cyclictest2195456-21taskset22:50:073
188264699161,12cyclictest2178691-21taskset22:37:523
188264699161,11cyclictest1936339-21taskset19:50:053
188264699161,11cyclictest1929978-21taskset19:45:043
188264699160,12cyclictest1961430-21taskset20:06:413
188264699160,12cyclictest1904292-21taskset19:25:043
18825012150,2sleep30-21swapper/319:09:573
22047282140,11sleep02206145-21grep22:55:180
21563612141,3sleep20-21swapper/222:25:132
20328152141,10sleep02032973-21if_err_eno221:05:160
22976482131,4sleep02297845-21tail23:55:160
22286842130,5sleep12230314-21grep23:10:191
22223052130,1sleep00-21swapper/023:05:200
21385512131,9sleep02138716-21/usr/sbin/munin22:10:280
18929232130,10sleep01894663-21cut19:15:190
23425562121,8sleep12342562-21ssh00:20:311
22491602121,8sleep1222-21plymouthd23:22:221
22424822123,6sleep02242243-21sendmail-msp23:20:040
21873572120,8sleep12187521-21cut22:45:011
21851862121,2sleep20-21swapper/222:40:252
21711002120,9sleep02171106-21ssh22:33:290
21304282120,5sleep22130473-21awk22:05:252
20532052120,2sleep02038642-21diskmemload21:17:230
20452352121,9sleep12045241-21ssh21:11:431
19513252120,4sleep21952757-21kthreadcore20:00:202
19360782121,8sleep11936188-21sed19:50:001
23604102113,5sleep22360493-21cut00:35:162
22870192111,7sleep22287066-21ssh23:45:242
22727812110,2sleep20-21swapper/223:38:022
22568332110,3sleep1222-21plymouthd23:27:031
22099202110,7sleep22209928-21ssh22:57:212
21967472110,8sleep12197724-21cut22:50:181
21771432112,5sleep22177193-21ntpq22:35:242
21410912111,7sleep02141734-21irqrtprio22:15:170
20610422111,3sleep20-21swapper/221:22:142
20132912110,1sleep10-21swapper/120:50:011
19239822110,8sleep21924905-21cut19:40:192
18842212111,3sleep10-21swapper/119:10:191
23292632100,7sleep02329976-21cut00:15:170
23131052100,7sleep22313109-21ssh00:05:092
22869712100,3sleep12287018-21grep23:45:231
22798402101,7sleep02273554-21sendmail-msp23:40:370
22265752100,1sleep10-21swapper/123:09:551
22137612101,6sleep02210909-21sendmail-msp23:00:190
21788312100,7sleep12178837-21ssh22:38:151
21625062102,6sleep0222-21plymouthd22:26:160
21616802102,2sleep1171rcu_preempt22:25:241
21328872101,5sleep12132893-21ssh22:10:131
20918212106,2sleep20-21swapper/221:40:352
20311342102,4sleep22031274-21ntpq21:00:212
20196712100,8sleep12019705-21dpkg20:55:111
20000112100,7sleep02000012-21sshd-session20:38:020
19935002100,2sleep2222-21plymouthd20:31:112
19855352100,7sleep01986339-21sed20:25:190
19741312101,6sleep21968370-21/usr/sbin/munin20:15:312
19671862102,4sleep21967230-21ntpq20:10:262
19427462102,5sleep01942744-21apt-get19:55:130
19418452100,2sleep10-21swapper/119:50:281
2359628290,2sleep1222-21plymouthd00:34:101
2336555292,4sleep22336588-21apt-get00:20:122
2304394291,5sleep22304400-21ssh23:58:352
2282178291,5sleep0222-21plymouthd23:45:180
2242466292,5sleep22242473-21sh23:20:022
2239936291,5sleep02239977-21ntpq23:15:230
2171932292,4sleep02171965-21apt-get22:35:140
2139990291,4sleep2222-21plymouthd22:14:032
2123157291,5sleep12116920-21sendmail-msp22:00:341
2108172290,3sleep22108178-21ssh21:52:342
2101558291,4sleep02101599-21ssh21:50:110
2060168292,4sleep1222-21plymouthd21:20:291
2000107290,2sleep2222-21plymouthd20:39:172
1994071291,4sleep11994104-21apt-get20:35:111
1987882290,2sleep0222-21plymouthd20:30:160
1955753291,5sleep01955837-21grep20:05:150
1910463291,5sleep21910487-21cut19:30:012
1877355291,5sleep01878336-21cut19:05:170
2361500281,4sleep12362326-21tr00:35:191
2359271280,2sleep2222-21plymouthd00:33:152
2352847280,6sleep02353499-21irqrtprio00:30:160
2349785281,4sleep22349828-21ntpq00:25:212
2320451280,1sleep0222-21plymouthd00:09:320
2255667281,5sleep02255715-21ntpq23:25:210
2241809280,2sleep10-21swapper/123:18:531
2227866280,5sleep02228681-21kthreadcore23:10:180
2226602281,4sleep22226630-21munin-run23:10:002
2211228281,3sleep1222-21plymouthd23:00:121
2206147280,5sleep12207888-21grep22:55:191
2141738280,5sleep12142645-21cut22:15:181
2132443280,6sleep12132449-21ssh22:09:491
2116079280,2sleep12116085-21ssh21:57:501
2109349284,2sleep22038642-21diskmemload21:55:062
2101233281,4sleep12101262-21munin-run21:50:001
2093891281,4sleep22093941-21cut21:45:162
2091814280,2sleep12091820-21ssh21:40:341
2075365281,4sleep12075449-21ntpq21:30:191
2067656281,4sleep12067711-21ntpq21:25:221
2051922281,3sleep1222-21plymouthd21:15:241
2045417280,2sleep02045423-21sh21:12:180
2037551280,5sleep12037671-21ntpq21:05:211
2013712280,5sleep02014207-21irqcore20:50:170
2000495281,4sleep12000640-21df20:40:161
1987685281,4sleep11987718-21apt-get20:30:131
1980125281,4sleep21980167-21ntpq20:20:242
1974847280,6sleep01974549-21sendmail-msp20:20:140
1967793280,5sleep0222-21plymouthd20:11:080
1955158280,2sleep1222-21plymouthd20:03:151
1948624281,4sleep2222-21plymouthd19:57:232
1930022281,3sleep2222-21plymouthd19:45:122
1910763280,4sleep0222-21plymouthd19:30:110
1902947281,4sleep21903026-21ntpq19:20:232
1891861280,5sleep21892145-21cut19:15:172
1891401281,3sleep11891434-21apt-get19:15:121
1882854281,3sleep00-21swapper/019:10:140
2351510271,3sleep0222-21plymouthd00:28:320
2344955271,3sleep12345896-21irqstats00:25:161
2334295270,4sleep22334433-21timerwakeupswit00:15:272
2326960270,4sleep12326966-21ssh00:10:491
2311782270,1sleep10-21swapper/100:02:071
2311414270,1sleep20-21swapper/200:01:042
2306702270,4sleep02307738-21cut00:00:210
2296457270,4sleep0222-21plymouthd23:53:120
2294817271,4sleep22294863-21ntpq23:50:212
2273884271,4sleep12274034-21ssh23:40:141
2272507270,1sleep1222-21plymouthd23:37:131
2255300270,4sleep22255604-21grep23:25:192
2201919272,3sleep2222-21plymouthd22:52:042
2187715270,4sleep12187716-21apt-get22:45:131
2164231270,4sleep22164384-21df_inode22:30:142
2154538270,4sleep2222-21plymouthd22:21:042
2153686271,3sleep02153736-21ntpq22:20:220
2130603270,5sleep02130758-21timerwakeupswit22:05:270
2102062270,4sleep12102588-21cut21:50:161
2086355270,4sleep02087249-21irqstats21:40:170
2075728271,3sleep20-21swapper/221:30:242
2070210271,2sleep00-21swapper/021:30:100
2046242270,2sleep22046248-21ssh21:14:332
2037904270,4sleep22032509-21/usr/sbin/munin21:05:272
2014209270,4sleep12014960-21grep20:50:181
2006928270,3sleep22006961-21apt-get20:45:142
2006916270,1sleep00-21swapper/020:45:040
1967794270,1sleep10-21swapper/120:11:091
1955269270,1sleep00-21swapper/020:04:430
1942440272,2sleep0151ktimers/019:55:000
1926936270,4sleep11928535-21tr19:40:221
1916559270,3sleep1222-21plymouthd19:31:361
1916176271,3sleep21916413-21/usr/sbin/munin19:30:252
1910440270,1sleep00-21swapper/019:29:430
1910324270,1sleep10-21swapper/119:28:111
1904014271,3sleep0222-21plymouthd19:24:500
1904000270,1sleep10-21swapper/119:24:391
1882402270,3sleep2222-21plymouthd19:08:402
2367404260,1sleep00-21swapper/000:39:020
2329977261,2sleep10-21swapper/100:15:181
2327660260,1sleep00-21swapper/000:12:440
2319249260,3sleep1222-21plymouthd00:06:081
2297436260,3sleep12297477-21ssh23:55:131
2280932260,3sleep2222-21plymouthd23:43:442
2264240260,1sleep20-21swapper/223:30:492
2264176260,4sleep00-21swapper/023:30:380
2234694260,3sleep22234733-21apt-get23:15:132
2232187260,3sleep22232232-21ssh23:10:242
2211836261,2sleep22210909-21sendmail-msp23:00:172
2195526260,3sleep0222-21plymouthd22:50:130
2193752260,3sleep0222-21plymouthd22:46:000
2186586261,2sleep0222-21plymouthd22:42:470
2164228260,3sleep12164230-21ssh22:30:131
2154816260,3sleep1222-21plymouthd22:21:471
2147403260,1sleep20-21swapper/222:18:082
2123542260,3sleep2222-21plymouthd22:01:402
2078448261,3sleep2222-21plymouthd21:35:182
2078018260,4sleep10-21swapper/121:35:121
2069129260,1sleep20-21swapper/221:27:522
2062090260,1sleep00-21swapper/021:25:010
2054480261,2sleep00-21swapper/021:20:120
2053760260,1sleep20-21swapper/221:18:582
2032045260,3sleep1222-21plymouthd21:02:331
2028916260,3sleep02030416-21grep21:00:190
2020115260,3sleep22020835-21irqrtprio20:55:162
2019077261,2sleep20-21swapper/220:50:512
2006420260,3sleep2222-21plymouthd20:42:012
1987096260,3sleep2222-21plymouthd20:25:582
1981333260,2sleep10-21swapper/120:25:121
1980783260,1sleep10-21swapper/120:21:561
1973593260,3sleep11973637-21gcc20:15:261
1973552260,1sleep00-21swapper/020:15:250
1961352260,1sleep10-21swapper/120:05:481
1955600260,3sleep20-21swapper/220:05:132
1936359260,3sleep20-21swapper/219:50:132
1935744260,1sleep00-21swapper/019:45:420
1928774261,2sleep01928813-21ld19:40:250
1923036260,2sleep1222-21plymouthd19:37:421
1922997261,2sleep20-21swapper/219:37:102
1922351261,3sleep00-21swapper/019:35:240
1885609261,2sleep20-21swapper/219:10:202
2336529251,1sleep00-21swapper/000:20:020
2294630250,3sleep12294816-21cut23:50:201
2272363250,2sleep0222-21plymouthd23:36:520
2188421251,1sleep20-21swapper/222:45:182
2123308250,3sleep00-21swapper/022:00:580
2114681250,2sleep0222-21plymouthd21:55:240
2094146251,2sleep00-21swapper/021:45:180
2084593250,2sleep00-21swapper/021:37:280
2000860250,3sleep02001125-21cut20:40:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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