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2026-07-26 - 12:28
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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 Sun Jul 26, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2038085993229,1cyclictest0-21swapper/322:00:013
203227923219,10sleep00-21swapper/019:05:160
2038085992825,1cyclictest0-21swapper/322:00:183
23081932270,8sleep12168462-21kworker/1:2+events22:20:211
2038085992623,1cyclictest0-21swapper/321:40:233
2038085992623,1cyclictest0-21swapper/300:15:003
2038085992623,1cyclictest0-21swapper/300:05:013
2038085992622,1cyclictest0-21swapper/321:10:213
24154352250,2sleep20-21swapper/223:30:192
2038085992321,1cyclictest0-21swapper/320:45:003
2038085992320,1cyclictest0-21swapper/323:00:173
2038085992320,1cyclictest0-21swapper/323:00:173
2038085992320,1cyclictest0-21swapper/300:40:003
2038085992220,1cyclictest0-21swapper/322:35:003
2038085992219,1cyclictest0-21swapper/321:49:353
2038085992219,1cyclictest0-21swapper/321:00:163
2038085992219,1cyclictest0-21swapper/320:00:193
2038085992218,1cyclictest0-21swapper/300:20:213
2038085992118,1cyclictest0-21swapper/319:20:203
203808599211,15cyclictest2413283-21taskset23:29:553
203808599202,13cyclictest2065582-21taskset19:26:473
2038085992017,1cyclictest0-21swapper/323:20:163
2038085992017,1cyclictest0-21swapper/322:40:193
2038085992017,1cyclictest0-21swapper/321:25:393
2038085992017,1cyclictest0-21swapper/320:10:393
203808599201,14cyclictest2491189-21taskset00:19:553
203808599198,7cyclictest21506822sleep320:35:193
2038085991916,1cyclictest0-21swapper/321:20:003
2038085991916,1cyclictest0-21swapper/319:40:123
2038085991915,1cyclictest0-21swapper/321:20:183
2038085991914,3cyclictest2174830-21sleep20:55:003
203808599191,14cyclictest2505518-21taskset00:26:003
203808599191,14cyclictest2428647-21taskset23:39:093
203808599191,14cyclictest2334342-21taskset22:38:353
203808599191,14cyclictest2318133-21taskset22:26:443
203808599191,14cyclictest2098016-21taskset19:55:133
203808599191,13cyclictest2389790-21taskset23:14:563
2038085991815,1cyclictest0-21swapper/323:54:563
2038085991815,1cyclictest0-21swapper/322:19:193
2038085991815,1cyclictest0-21swapper/320:20:043
2038085991815,1cyclictest0-21swapper/320:05:243
2038085991814,1cyclictest0-21swapper/323:40:193
203808599181,14cyclictest2303852-21taskset22:20:033
203808599181,13cyclictest2452524-21taskset23:55:133
203808599181,13cyclictest2443380-21taskset23:46:273
203808599181,13cyclictest2396262-21taskset23:16:083
203808599181,13cyclictest2365292-21taskset22:57:113
203808599181,13cyclictest2280478-21chrt22:05:153
203808599181,13cyclictest2264471-21turbostat21:55:003
203808599181,13cyclictest2232593-21taskset21:33:363
203808599181,13cyclictest2187967-21taskset21:05:133
203808599181,13cyclictest2168062-21taskset20:45:293
203808599181,13cyclictest2128752-21taskset20:15:223
203808599181,13cyclictest2038251-21taskset19:10:033
2038085991714,1cyclictest0-21swapper/322:11:553
2038085991714,1cyclictest0-21swapper/321:35:203
2038085991714,1cyclictest0-21swapper/320:30:193
2038085991714,1cyclictest0-21swapper/319:15:313
203808599171,13cyclictest2513215-21taskset00:30:453
203808599171,13cyclictest2468166-21taskset00:05:033
203808599171,13cyclictest2374474-21taskset23:05:013
203808599171,13cyclictest2356367-21taskset22:50:263
203808599171,13cyclictest2180258-21taskset20:55:233
203808599171,12cyclictest2343487-21taskset22:45:173
203808599171,12cyclictest2142289-21taskset20:26:283
203808599171,12cyclictest2091053-21taskset19:46:113
203808599171,12cyclictest2078224-21taskset19:35:413
203808599171,12cyclictest2071147-21taskset19:30:203
24170582161,1sleep30-21swapper/323:30:203
20537482161,11sleep22054444-21cut19:20:172
203808599165,7cyclictest20923152sleep319:50:173
24990702159,4sleep10-21swapper/100:24:511
249689021510,2sleep20-21swapper/200:20:232
24839672150,5sleep12484008-21cut00:15:171
22935032151,10sleep12293546-21ntpq22:10:231
21802162151,10sleep22180256-21ntpq20:55:232
22412582149,2sleep22180859-21kworker/u16:1-ext4-rsv-conversion21:40:132
21434972140,3sleep02144307-21grep20:30:190
21309452141,10sleep22129761-21sendmail-msp20:20:192
25152172132,8sleep02515313-21fschecks_time00:35:160
24039842131,8sleep22403990-21ssh23:20:332
21302202131,9sleep02130396-21/usr/sbin/munin20:20:170
20386912130,10sleep02039390-21cut19:10:170
2038085991311,1cyclictest0-21swapper/319:10:013
25073102120,3sleep02507314-21ssh00:30:150
23845042120,9sleep22386167-21cut23:10:182
23414042120,8sleep22341410-21ssh22:41:202
23363552120,8sleep12337143-21grep22:40:181
22868262121,3sleep2222-21plymouthd22:07:002
22491052121,8sleep02249113-21/usr/sbin/munin21:45:130
22403552121,8sleep22240359-21ssh21:38:292
21994702120,8sleep12199558-21ntpq21:10:211
21879212121,3sleep2222-21plymouthd21:05:052
21420752120,9sleep22142211-21sshd-session20:25:282
21287042121,8sleep22128750-21ntpq20:15:222
21041002121,8sleep086188-21systemd-journal20:00:000
24999512110,8sleep02500868-21sed00:25:180
24696732115,3sleep02470757-21kthreadcore00:05:220
24555312110,8sleep12457292-21grep23:55:201
24296452110,8sleep12429273-21/usr/sbin/munin23:40:161
23818192110,2sleep10-21swapper/123:09:211
23699042117,2sleep10-21swapper/123:00:191
23699042117,2sleep10-21swapper/123:00:191
22882592110,3sleep2222-21plymouthd22:10:122
21608622110,7sleep12160998-21collect220:40:231
20904922110,4sleep12090520-21ntpq19:45:261
20791082110,8sleep22079302-21idleruntime19:40:302
20508302110,1sleep20-21swapper/219:15:192
24837682100,2sleep20-21swapper/200:15:142
24673712100,7sleep12467373-21ssh00:03:341
24528952106,2sleep20-21swapper/223:55:172
24136412102,5sleep12413790-21ssh23:30:141
23671132100,2sleep20-21swapper/223:00:162
23671132100,2sleep20-21swapper/223:00:162
23639482102,4sleep02364039-21ntpq22:55:220
23346572100,6sleep12334663-21ssh22:39:261
22725602101,6sleep02272314-21sendmail-msp22:00:120
22162432100,7sleep12216249-21sshd-auth21:21:281
22021792101,5sleep22202181-21ssh21:15:152
21428542100,7sleep12142855-21dpkg20:30:041
20847632100,3sleep0222-21plymouthd19:42:240
2509473290,6sleep22511230-21grep00:30:212
2484769291,5sleep02485656-21cut00:15:200
2477762291,5sleep02479354-21cut00:10:180
2463669290,6sleep22465155-21cut00:00:222
2451586290,2sleep0222-21plymouthd23:53:220
2443237290,2sleep1222-21plymouthd23:46:061
2389629290,5sleep1222-21plymouthd23:14:311
2389613295,2sleep02194054-21diskmemload23:14:250
2372163291,5sleep02372269-21python323:00:260
2372163291,5sleep02372269-21python323:00:260
2349484290,6sleep12349488-21ssh22:47:001
2327406291,4sleep02327439-21apt-get22:35:120
2326822290,2sleep00-21swapper/022:34:200
2319281294,3sleep12319388-21latency_hist22:30:001
2303491295,2sleep20-21swapper/222:19:512
2280429290,2sleep10-21swapper/122:05:141
2263853290,1sleep00-21swapper/021:53:180
2255465290,6sleep12255471-21ssh21:46:461
2241307291,5sleep02241468-21diskstats21:40:150
2225214290,1sleep20-21swapper/221:29:392
2187553290,2sleep2222-21plymouthd21:03:372
2187535290,2sleep1222-21plymouthd21:03:241
2136644290,6sleep12136689-21fschecks_count20:25:151
2129700290,6sleep02129783-21latency_hist20:20:010
2123000290,2sleep2222-21plymouthd20:11:212
2116605291,5sleep1222-21plymouthd20:06:111
2110322290,2sleep1222-21plymouthd20:02:101
2110292290,2sleep0222-21plymouthd20:01:490
2092014290,6sleep22092312-21irqcore19:50:162
2068740290,6sleep12070563-21kthreadcore19:30:191
2065788290,2sleep2222-21plymouthd19:29:272
2059777290,1sleep10-21swapper/119:25:131
2056643291,5sleep12058238-21cut19:20:201
2037829290,1sleep20-21swapper/219:08:272
2520373281,4sleep12520418-21ntp_states00:35:251
2515052280,1sleep20-21swapper/200:35:142
2470760280,5sleep12472465-21kthreadcore00:05:221
2466890281,3sleep0222-21plymouthd00:02:130
2450974282,3sleep1222-21plymouthd23:51:391
2448120280,2sleep20-21swapper/223:50:202
2428052280,2sleep22428060-21ssh23:37:292
2410999281,4sleep02411051-21ntpq23:25:200
2404573281,4sleep1222-21plymouthd23:22:201
2398121281,4sleep02397722-21sendmail-msp23:20:150
2395484281,4sleep02395537-21ntp_states23:15:260
2374580280,4sleep20-21swapper/223:05:132
2325562280,2sleep1222-21plymouthd22:30:481
2311003280,6sleep02311009-21ssh22:23:420
2310384280,2sleep20-21swapper/222:21:592
2272557281,4sleep22272314-21sendmail-msp22:00:102
2271840281,4sleep12271846-21ssh21:58:571
2255572280,2sleep2171rcu_preempt21:47:032
2239533280,4sleep02239539-21ssh21:36:140
2232239280,2sleep12232245-21ssh21:32:351
2231610280,1sleep0171rcu_preempt21:30:490
2223135281,3sleep02223179-21ntpq21:25:240
2217819281,3sleep12217822-21apt-get21:25:131
2210422281,4sleep02209645-21sendmail-msp21:20:190
2208079280,1sleep00-21swapper/021:15:500
2174719280,2sleep0222-21plymouthd20:54:010
2174664280,1sleep20-21swapper/220:53:182
2157855281,4sleep22159301-21kthreadcore20:40:202
2155443280,5sleep02155504-21sendmail-msp20:40:010
2155192280,4sleep0222-21plymouthd20:36:490
2149746281,4sleep22150681-21irqstats20:35:182
2110421280,5sleep2222-21plymouthd20:03:272
2103203281,4sleep22103245-21ntpq19:55:252
2078468280,2sleep2222-21plymouthd19:38:502
2077653281,4sleep12077700-21ntp_states19:35:241
2052889280,2sleep0222-21plymouthd19:18:310
2032837281,3sleep10-21swapper/119:05:171
2499675271,3sleep22499784-21fschecks_time00:25:162
2491601271,3sleep00-21swapper/000:20:130
2483059271,3sleep1222-21plymouthd00:13:561
2474977270,3sleep2222-21plymouthd00:08:042
2438591272,3sleep22439881-21kthreadcore23:45:192
2437154271,3sleep0222-21plymouthd23:45:130
2429218270,1sleep02429224-21ssh23:40:030
2428016270,5sleep12428022-21ssh23:37:241
2426602271,3sleep02426692-21ntpq23:35:220
2412330271,3sleep22412336-21ssh23:27:182
2396246270,1sleep20-21swapper/223:16:042
2382041271,3sleep00-21swapper/023:10:000
2366281270,1sleep20-21swapper/222:59:562
2357323270,1sleep20-21swapper/222:51:502
2356475271,3sleep02356644-21/usr/sbin/munin22:50:280
2349034271,2sleep0222-21plymouthd22:45:430
2335223271,3sleep02335225-21ssh22:40:130
2318556271,3sleep02303267-21kworker/u16:2-xprtiod22:27:590
2317404271,4sleep22317661-21unixbench_singl22:25:282
2303037270,1sleep00-21swapper/022:18:320
2296234271,3sleep12296354-21grep22:15:171
2290085270,5sleep02291662-21kthreadcore22:10:180
2272594271,2sleep12272596-21apt-get22:00:131
2264729270,1sleep00-21swapper/021:55:110
2263408270,4sleep12263414-21ssh21:52:111
2263306270,1sleep20-21swapper/221:51:562
2226144271,3sleep20-21swapper/221:30:192
2216882271,4sleep22216887-21diskmemload21:23:132
2202139271,3sleep12202176-21apt-get21:15:151
2194001270,4sleep0222-21plymouthd21:09:440
2187556270,1sleep00-21swapper/021:03:390
2181181270,1sleep10-21swapper/120:59:591
2162245271,3sleep0222-21plymouthd20:45:030
2123088270,1sleep00-21swapper/020:12:270
2116215271,4sleep22116327-21wc20:05:282
2103412271,3sleep1222-21plymouthd19:55:281
2091271270,1sleep2222-21plymouthd19:49:002
2078538270,1sleep00-21swapper/019:39:440
2071991270,4sleep0222-21plymouthd19:32:220
2059438270,4sleep0222-21plymouthd19:24:360
2044265271,3sleep1222-21plymouthd19:12:351
2038444270,1sleep2222-21plymouthd19:10:152
2482539260,4sleep2222-21plymouthd00:12:292
2458562260,1sleep00-21swapper/023:55:510
2434373261,3sleep286188-21systemd-journal23:40:212
2420481260,1sleep00-21swapper/023:33:060
2407289260,3sleep12408909-21kthreadcore23:25:171
2390082260,1sleep10-21swapper/123:15:031
2364048260,3sleep12364088-21ntpq22:55:221
2350921260,3sleep1222-21plymouthd22:50:131
2349476260,4sleep22194054-21diskmemload22:46:572
2334845260,4sleep22334852-21ssh22:39:552
2326169260,1sleep20-21swapper/222:32:302
2270614260,1sleep20-21swapper/221:55:292
2248128260,1sleep10-21swapper/121:43:131
2239692260,3sleep1222-21plymouthd21:36:401
2201062260,1sleep20-21swapper/221:12:592
2194330261,2sleep00-21swapper/021:10:120
2193685260,1sleep10-21swapper/121:05:401
2181044261,2sleep00-21swapper/020:58:150
2174454260,3sleep1222-21plymouthd20:50:371
2161955260,3sleep22162038-21appstreamcli20:45:012
2155289260,1sleep10-21swapper/120:38:021
2142856260,3sleep2222-21plymouthd20:30:052
2136452260,3sleep0222-21plymouthd20:25:060
2123558261,2sleep10-21swapper/120:15:131
2118728261,3sleep12120419-21kthreadcore20:10:201
2110804260,2sleep0222-21plymouthd20:05:060
2096799260,3sleep02096838-21ntpq19:50:220
2091150260,2sleep0222-21plymouthd19:47:250
2079053261,2sleep10-21swapper/119:40:291
2072063260,3sleep2222-21plymouthd19:33:162
2507231250,2sleep12507237-21ssh00:30:041
2505426250,2sleep1222-21plymouthd00:25:471
2283072250,2sleep00-21swapper/022:05:210
2168095250,2sleep1222-21plymouthd20:45:561
2129985250,3sleep1874-21rs:main1
2097444250,2sleep1222-21plymouthd19:51:191
2059736250,2sleep0222-21plymouthd19:25:080
2052686250,3sleep10-21swapper/119:15:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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