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2026-06-16 - 15:33
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Tue Jun 16, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21361212720,1sleep30-21swapper/310:20:183
1867047992926,1cyclictest0-21swapper/312:15:003
1867047992926,1cyclictest0-21swapper/309:40:003
1867047992623,1cyclictest0-21swapper/311:20:283
1867047992421,1cyclictest0-21swapper/307:15:043
1867047992320,1cyclictest0-21swapper/310:56:123
1867047992320,1cyclictest0-21swapper/310:35:143
23192772220,2sleep2421rcuc/212:16:362
1867047992219,1cyclictest0-21swapper/310:00:033
1867047992219,1cyclictest0-21swapper/310:00:033
186704799212,14cyclictest2133806-21taskset10:19:303
1867047992118,1cyclictest0-21swapper/312:00:053
1867047992118,1cyclictest0-21swapper/311:45:123
1867047992118,1cyclictest0-21swapper/311:45:123
1867047992118,1cyclictest0-21swapper/311:40:193
1867047992118,1cyclictest0-21swapper/310:30:013
1867047992118,1cyclictest0-21swapper/309:50:253
1867047992118,1cyclictest0-21swapper/308:05:003
1867047992117,1cyclictest0-21swapper/311:05:133
186704799211,15cyclictest2038622-21taskset09:17:363
186704799211,14cyclictest2344028-21taskset12:35:013
21108962200,2sleep1222-21plymouthd10:05:011
186704799202,14cyclictest2055712-21taskset09:28:263
1867047992018,1cyclictest0-21swapper/312:20:063
1867047992017,1cyclictest0-21swapper/312:30:173
1867047992017,1cyclictest0-21swapper/311:50:163
186704799201,15cyclictest1965705-21chrt08:25:123
186704799201,14cyclictest1920401-21taskset07:48:153
186704799201,13cyclictest2118404-21taskset10:09:563
186704799199,6cyclictest19333252sleep307:59:193
186704799192,13cyclictest2249403-21taskset11:31:593
186704799192,13cyclictest2249403-21taskset11:31:593
1867047991916,1cyclictest0-21swapper/309:10:183
1867047991916,1cyclictest0-21swapper/308:40:163
1867047991916,1cyclictest0-21swapper/308:20:043
1867047991916,1cyclictest0-21swapper/308:20:043
186704799191,14cyclictest2313037-21chrt12:15:133
186704799191,14cyclictest2257669-21taskset11:38:243
186704799191,14cyclictest2257669-21taskset11:38:243
186704799191,14cyclictest1958302-21taskset08:15:263
186704799182,12cyclictest1946525-21chrt08:10:123
1867047991816,1cyclictest0-21swapper/310:10:183
1867047991815,1cyclictest0-21swapper/309:55:183
1867047991815,1cyclictest0-21swapper/309:45:143
186704799181,14cyclictest2079400-21taskset09:44:423
186704799181,14cyclictest1972090-21taskset08:30:133
186704799181,13cyclictest2335257-21taskset12:27:523
186704799181,13cyclictest2224993-21taskset11:15:233
186704799181,13cyclictest2212292-21taskset11:10:143
186704799181,13cyclictest2188212-21taskset10:54:423
186704799181,13cyclictest2178475-21taskset10:45:243
186704799181,13cyclictest2009848-21taskset08:55:273
186704799181,13cyclictest1925780-21taskset07:50:193
186704799181,13cyclictest1888415-21taskset07:24:343
1867047991714,1cyclictest0-21swapper/311:00:043
1867047991714,1cyclictest0-21swapper/309:30:193
1867047991714,1cyclictest0-21swapper/307:40:183
1867047991714,1cyclictest0-21swapper/307:35:193
186704799171,13cyclictest2303796-21taskset12:06:433
186704799171,13cyclictest2172603-21taskset10:44:243
186704799171,13cyclictest2046990-21taskset09:20:333
186704799171,13cyclictest2016355-21chrt09:00:403
186704799171,13cyclictest1997130-21taskset08:46:413
186704799171,13cyclictest1984238-21taskset08:35:343
186704799171,13cyclictest1895542-21taskset07:30:153
186704799171,12cyclictest2281837-21taskset11:55:043
186704799171,12cyclictest2016960-21taskset09:05:093
186704799171,12cyclictest1997704-21chrt08:50:143
186704799171,12cyclictest1873065-21taskset07:10:393
1867047991710,4cyclictest18946732chrt07:27:393
23445692160,12sleep22345351-21cut12:35:172
22109242167,2sleep2171rcu_preempt11:08:092
1867047991613,1cyclictest0-21swapper/310:30:123
186704799161,12cyclictest2237930-21taskset11:25:173
186704799161,12cyclictest1940106-21taskset08:05:113
22210492151,11sleep12222188-21tr11:15:181
21434532141,10sleep02144745-21tr10:25:170
21249902149,2sleep22124994-21ssh10:11:242
19240182140,2sleep20-21swapper/207:50:202
18962092140,11sleep01897141-21cut07:30:170
21346062130,3sleep02134611-21fschecks_time10:20:150
20853362131,9sleep02085460-21python309:45:240
20373322131,8sleep22037338-21ssh09:15:592
19067562131,9sleep11906800-21ntpq07:35:241
6881120,3low-memory-moni2038492-21frontend09:17:311
22839802121,2sleep10-21swapper/111:55:191
22459582121,8sleep22247692-21kthreadcore11:30:182
22459582121,8sleep22247692-21kthreadcore11:30:172
22032272124,2sleep10-21swapper/111:03:231
20792402121,8sleep0222-21plymouthd09:44:120
20559692121,8sleep22023146-21diskmemload09:29:112
19909492121,4sleep0222-21plymouthd08:44:300
19269222121,7sleep11926947-21munin-plugin-st07:55:001
18827242121,8sleep21883400-21irqrtprio07:20:172
7861110,4gdbus2054911-21fwupdmgr09:26:120
23274352110,7sleep22327441-21ssh12:22:412
22482712110,8sleep12248309-21ntpq11:30:211
22482712110,8sleep12248309-21ntpq11:30:211
21649932111,2sleep12117450-21kworker/u16:1-rpciod10:39:581
20697322110,8sleep02069789-21grep09:35:260
20480562110,3sleep2222-21plymouthd09:23:452
20380472110,7sleep02037722-21dpkg09:17:060
20045492111,7sleep02005480-21irqstats08:55:160
20002762110,8sleep02002114-21cut08:50:200
19336702118,1sleep20-21swapper/208:00:102
19324572110,8sleep01932503-21ld07:55:230
18940582111,7sleep21894173-21python307:25:262
18843642110,8sleep01886138-21cut07:20:190
23146932100,1sleep00-21swapper/012:15:180
23041902100,2sleep02304196-21ssh12:07:570
22829942105,3sleep02283976-21kthreadcore11:55:180
22591252100,7sleep02260002-21kernelversion11:40:190
21180982100,8sleep12118102-21ssh10:08:591
20973062104,3sleep02098928-21kthreadcore09:55:190
20068102100,7sleep22008601-21kthreadcore08:55:192
19579972102,4sleep21958043-21ntpq08:15:222
19272382102,4sleep11927260-21apt-get07:55:121
18672712100,7sleep11867425-21df_inode07:10:131
18672702101,4sleep0222-21plymouthd07:10:130
2256090292,4sleep22256138-21ntpq11:35:242
2256090292,4sleep22256138-21ntpq11:35:242
2226035293,3sleep22070628-21kworker/u16:2+xprtiod11:16:552
2216992291,5sleep02217138-21ntpq11:10:200
2180903291,5sleep22180906-21apt-get10:50:132
2159523290,6sleep22161118-21cut10:35:182
2157551290,2sleep0222-21plymouthd10:35:080
2140242290,2sleep12140248-21ssh10:20:371
2116236291,5sleep22116288-21ntpq10:05:232
2089428290,6sleep12090766-21kthreadcore09:50:181
2023879292,4sleep02003808-21kworker/u16:1+xprtiod09:10:160
2010522291,5sleep22010301-21sendmail-msp09:00:082
1991259290,6sleep11991292-21apt-get08:45:111
1990753290,1sleep20-21swapper/208:42:002
1964485291,5sleep21964529-21ntpq08:20:232
1964485291,5sleep21964529-21ntpq08:20:232
1881031291,5sleep21881068-21ntpq07:15:202
1866918290,2sleep30-21swapper/307:09:563
1865996291,4sleep21866037-21/usr/sbin/munin07:05:222
2347205281,4sleep12348528-21grep12:35:201
2343336282,3sleep1222-21plymouthd12:33:481
2336343280,4sleep2222-21plymouthd12:30:122
2334051280,5sleep20-21swapper/212:25:272
2320829281,3sleep02320823-21apt-get12:20:120
2296032280,2sleep10-21swapper/112:01:411
2272355281,4sleep02272361-21ssh11:45:480
2272355281,4sleep02272361-21ssh11:45:480
2264182280,5sleep22264428-21unixbench_singl11:40:292
2241314280,6sleep12241322-21ssh11:26:121
2234725280,1sleep20-21swapper/211:24:412
2217140280,5sleep1222-21plymouthd11:10:201
2200434281,4sleep22201451-21memory11:00:192
2195830282,3sleep0222-21plymouthd10:59:250
2186132280,5sleep02186165-21ssh10:50:230
2178996280,6sleep10-21swapper/110:45:351
2174584281,4sleep00-21swapper/010:45:180
2170638280,5sleep2222-21plymouthd10:40:232
2165317281,4sleep12157210-21kworker/u16:4+ext4-rsv-conversion10:40:061
2149815281,3sleep12149817-21apt-get10:30:121
2142227280,2sleep1222-21plymouthd10:25:141
2141666281,4sleep22141670-21ssh10:24:552
2118226280,1sleep00-21swapper/010:09:210
2110320281,2sleep1222-21plymouthd10:04:021
2108582281,4sleep02108616-21ntpq10:00:240
2108582281,4sleep02108616-21ntpq10:00:230
2062927280,5sleep22062933-21ssh09:31:552
2042019281,4sleep12042737-21tr09:20:191
2015726281,4sleep02015765-21ntpq09:00:220
1997667280,2sleep10-21swapper/108:50:121
1996451281,4sleep01996495-21ntpq08:45:220
1952911281,3sleep10-21swapper/108:15:121
1940146281,4sleep21940302-21diskstats08:05:152
1919574281,4sleep01919618-21ntpq07:45:210
1908753280,5sleep21909586-21grep07:40:182
1894629280,2sleep1222-21plymouthd07:27:061
1894546280,2sleep0222-21plymouthd07:26:000
1866660281,3sleep0222-21plymouthd07:06:360
688170,1low-memory-moni0-21swapper/109:26:121
2350347270,4sleep02350349-21ssh12:36:280
2335882270,1sleep12335890-21ssh12:29:431
2328567270,4sleep0222-21plymouthd12:25:130
2319274271,3sleep172-21kcompactd012:16:361
2311635273,2sleep11000-21snmpd12:12:021
2296915270,3sleep2222-21plymouthd12:04:222
2288488270,4sleep22288494-21ssh11:57:372
2280779270,1sleep0222-21plymouthd11:52:490
2280667270,4sleep1222-21plymouthd11:52:301
2257534270,4sleep1222-21plymouthd11:38:031
2257534270,4sleep1222-21plymouthd11:38:031
2239693270,1sleep00-21swapper/011:25:190
2236599270,4sleep22237928-21cut11:25:172
2234452271,3sleep0222-21plymouthd11:23:510
2233821270,1sleep10-21swapper/111:21:591
2210506270,3sleep1222-21plymouthd11:06:521
2194842271,4sleep1222-21plymouthd10:56:301
2194799270,5sleep22194805-21ssh10:56:232
2180403270,4sleep22180409-21ssh10:49:372
2155019270,4sleep22155069-21ntpq10:30:212
2126529270,1sleep10-21swapper/110:15:031
2102384271,3sleep1222-21plymouthd09:58:401
2102049270,4sleep22102052-21sh09:57:372
2094200271,3sleep22094206-21sh09:52:282
2078059270,1sleep10-21swapper/109:40:401
2072144271,3sleep22072146-21apt-get09:40:132
2070797270,1sleep10-21swapper/109:37:071
2070259270,4sleep2222-21plymouthd09:35:312
2029006271,4sleep22029089-21find09:10:262
2024202270,4sleep12024920-21tail09:10:171
2022829270,1sleep10-21swapper/109:06:121
2022189270,4sleep02022232-21ntpq09:05:220
2016975271,3sleep22016997-21apt-get09:05:132
2009293271,4sleep12009330-21ntpq08:55:221
1997139270,3sleep2222-21plymouthd08:46:492
1967090272,2sleep01968724-21tr08:25:180
1965348270,1sleep10-21swapper/108:24:231
1965348270,1sleep10-21swapper/108:24:231
1946520271,2sleep21946522-21apt-get08:10:122
1913825270,1sleep10-21swapper/107:40:531
1907567270,1sleep00-21swapper/007:38:070
1882530271,4sleep11882723-21idleruntime07:20:161
2343283260,1sleep00-21swapper/012:33:390
2321775261,2sleep10-21swapper/112:20:171
2311728260,1sleep20-21swapper/212:12:202
2300400260,3sleep22302129-21cut12:05:182
2289708260,3sleep0222-21plymouthd12:00:100
2280189260,1sleep20-21swapper/211:51:072
2272433260,3sleep22272439-21ssh11:46:062
2272433260,3sleep22272439-21ssh11:46:062
2271583260,3sleep12271614-21ssh11:45:211
2271583260,3sleep12271614-21ssh11:45:211
2263868261,2sleep10-21swapper/111:40:241
2256876260,1sleep00-21swapper/011:36:020
2256876260,1sleep00-21swapper/011:36:020
2225996260,4sleep00-21swapper/011:16:490
2180870260,3sleep12180902-21ssh10:50:121
2170214260,4sleep02170554-21cut10:40:210
2156807260,1sleep00-21swapper/010:33:430
2132981261,3sleep0222-21plymouthd10:17:000
2132780260,3sleep2222-21plymouthd10:16:252
2110476260,2sleep2222-21plymouthd10:04:272
2110476260,2sleep2222-21plymouthd10:04:272
2088643261,2sleep00-21swapper/009:50:170
2086929260,3sleep1222-21plymouthd09:48:461
2086635260,1sleep20-21swapper/209:47:552
2063754260,1sleep00-21swapper/009:34:220
2010516261,2sleep186188-21systemd-journal09:00:031
1997703260,2sleep20-21swapper/208:50:132
1984562260,1sleep00-21swapper/008:39:450
1984368260,3sleep1222-21plymouthd08:37:181
1983741261,2sleep20-21swapper/208:35:262
1977869260,3sleep2222-21plymouthd08:31:082
1977868260,1sleep10-21swapper/108:31:081
1971483261,2sleep20-21swapper/208:26:082
1965135260,1sleep00-21swapper/008:21:370
1965135260,1sleep00-21swapper/008:21:370
1958090261,2sleep01958132-21ntpq08:15:240
1952478260,2sleep0222-21plymouthd08:13:230
1946173260,3sleep1222-21plymouthd08:09:231
1945887260,1sleep00-21swapper/008:05:400
1933673261,2sleep00-21swapper/008:00:120
1933443260,4sleep10-21swapper/108:00:011
1920259260,3sleep1222-21plymouthd07:46:261
1914421260,3sleep21914454-21apt-get07:45:112
1901229260,1sleep20-21swapper/207:34:112
1901218260,3sleep11000-21snmpd07:34:031
1873349261,2sleep2222-21plymouthd07:14:202
1866604260,2sleep10-21swapper/107:05:531
2311316250,2sleep0222-21plymouthd12:11:020
2297436250,2sleep1222-21plymouthd12:05:051
2248169250,3sleep02248269-21ntpq11:30:200
2248169250,3sleep02248269-21ntpq11:30:200
2214726251,2sleep2222-21plymouthd11:10:182
2204097251,2sleep02204128-21acpi11:05:110
2201596250,2sleep02201645-21ntpq11:00:210
2142021250,2sleep20-21swapper/210:25:102
2125510250,3sleep00-21swapper/010:12:590
2120186250,3sleep12121380-21kthreadcore10:10:191
2061821250,2sleep10-21swapper/109:30:221
2040990251,2sleep00-21swapper/009:20:060
1986277250,3sleep11987671-21kthreadcore08:40:181
1972042250,2sleep0222-21plymouthd08:30:030
1971524250,2sleep1222-21plymouthd08:26:391
1952278250,2sleep1222-21plymouthd08:10:481
1933142250,2sleep2222-21plymouthd07:56:572
1920793250,2sleep0222-21plymouthd07:50:020
1913834250,2sleep0222-21plymouthd07:41:000
1901765250,3sleep21901964-21hddtemp_smartct07:35:172
1875907250,2sleep10-21swapper/107:15:111
1875872250,3sleep01875906-21dpkg07:15:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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