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2026-06-17 - 18:18
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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 Wed Jun 17, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4132152330,1sleep10-21swapper/111:10:151
7069399291,23cyclictest428080-21turbostat11:20:003
70693992824,1cyclictest0-21swapper/309:30:193
70693992824,1cyclictest0-21swapper/309:30:193
70693992421,1cyclictest0-21swapper/310:40:123
70693992421,1cyclictest0-21swapper/310:25:013
70693992421,1cyclictest0-21swapper/309:20:263
70693992320,1cyclictest0-21swapper/311:10:003
70693992219,1cyclictest0-21swapper/311:00:113
70693992219,1cyclictest0-21swapper/310:00:093
70693992219,1cyclictest0-21swapper/308:40:013
70693992219,1cyclictest0-21swapper/308:00:023
70693992219,1cyclictest0-21swapper/307:30:003
70693992119,0cyclictest0-21swapper/309:00:073
70693992118,1cyclictest0-21swapper/312:00:003
70693992118,1cyclictest0-21swapper/307:40:263
7069399211,15cyclictest459090-21taskset11:39:563
70693992017,1cyclictest0-21swapper/309:15:153
70693992017,1cyclictest0-21swapper/309:15:153
70693992017,1cyclictest0-21swapper/309:10:003
70693992017,1cyclictest0-21swapper/309:00:003
7069399201,15cyclictest168690-21taskset08:22:353
7069399201,14cyclictest546335-21taskset12:35:183
7069399201,14cyclictest358515-21taskset10:35:013
7069399201,14cyclictest181408-21taskset08:32:093
7069399197,8cyclictest296328-21sleep09:55:003
70693991916,1cyclictest0-21swapper/312:15:173
70693991916,1cyclictest0-21swapper/311:45:173
70693991916,1cyclictest0-21swapper/311:40:113
70693991916,1cyclictest0-21swapper/310:05:273
70693991916,1cyclictest0-21swapper/308:40:193
7069399191,14cyclictest504426-21taskset12:06:103
7069399191,14cyclictest156066-21taskset08:14:133
7069399191,13cyclictest156385-21taskset08:15:023
7069399191,13cyclictest124411-21chrt07:50:123
70693991910,6cyclictest768082sleep307:12:243
7069399190,14cyclictest537335-21taskset12:30:123
7069399188,7cyclictest1366552sleep307:56:383
70693991815,1cyclictest0-21swapper/312:25:163
70693991815,1cyclictest0-21swapper/312:20:133
7069399181,14cyclictest478790-21taskset11:50:193
7069399181,14cyclictest347469-21taskset10:25:203
7069399181,13cyclictest79458-21chrt07:15:133
7069399181,13cyclictest496453-21taskset12:00:293
7069399181,13cyclictest434334-21taskset11:20:323
7069399181,13cyclictest374160-21taskset10:45:113
7069399181,13cyclictest334820-21taskset10:19:353
7069399181,13cyclictest283526-21taskset09:45:183
7069399181,13cyclictest272320-21taskset09:38:043
7069399181,13cyclictest174973-21taskset08:26:323
7069399181,12cyclictest389667-21chrt10:55:103
7069399177,7cyclictest2792562sleep309:40:343
70693991714,1cyclictest0-21swapper/310:30:173
70693991714,1cyclictest0-21swapper/309:25:153
70693991714,1cyclictest0-21swapper/308:45:213
7069399171,13cyclictest91246-21taskset07:20:253
7069399171,13cyclictest442380-21taskset11:26:173
7069399171,13cyclictest418876-21taskset11:10:493
7069399171,13cyclictest325991-21taskset10:11:203
7069399171,13cyclictest207369-21turbostat08:55:003
7069399171,13cyclictest148809-21taskset08:05:233
7069399171,12cyclictest118267-21taskset07:45:153
7069399170,13cyclictest511306-21taskset12:10:193
7069399170,12cyclictest381844-21taskset10:50:013
70693991613,1cyclictest0-21swapper/309:55:143
7069399161,12cyclictest450195-21chrt11:31:353
7069399161,12cyclictest226829-21taskset09:10:103
7069399160,13cyclictest104575-21chrt07:32:243
70693991512,1cyclictest0-21swapper/307:35:203
70693991512,1cyclictest0-21swapper/307:35:203
1616492151,10sleep1161695-21grep08:15:241
702502140,2sleep30-21swapper/307:06:243
5190532141,10sleep0519100-21ntp_states12:15:220
4737392141,2sleep00-21swapper/011:47:130
3508782141,5sleep2350884-21ssh10:30:122
2562992140,10sleep1256303-21ssh09:26:281
4883312130,5sleep1488533-21grep11:55:271
3353952131,4sleep2335532-21diskstats10:20:142
2726622131,9sleep1272667-21ssh09:39:071
645312120,6sleep1222-21plymouthd07:05:211
644952121,6sleep064528-21apt-get07:05:200
4742342120,3sleep1474240-21ssh11:48:411
3884872120,9sleep0388493-21ssh10:52:400
3662922126,3sleep1872-21in:imuxsock10:40:051
3457472126,3sleep2346225-21kthreadcore10:25:192
3172452120,3sleep1317247-21needreboot10:05:201
3001312120,8sleep0301635-21latency09:55:180
1887282121,8sleep0188921-21cut08:40:180
773792110,8sleep078943-21kthreadcore07:15:020
4754792110,8sleep0476309-21cut11:50:170
4541962111,6sleep2455972-21kthreadcore11:35:192
4120722110,8sleep2412078-21ssh11:08:412
3689862111,7sleep0370680-21kthreadcore10:40:170
2970302114,4sleep1297583-21irqrtprio09:55:161
2961302115,3sleep1273071-21kworker/u16:2+nfsiod09:54:351
2716912110,7sleep2271693-21ssh09:36:162
2646462110,8sleep1264652-21ssh09:33:181
2646462110,8sleep1264652-21ssh09:33:181
2523352114,4sleep2254002-21tr09:25:172
1039602110,8sleep0104031-21/usr/sbin/munin07:30:260
853652100,7sleep11000-21snmpd07:18:191
696002101,5sleep269634-21ntpq07:05:302
5449042101,5sleep1544937-21apt-get12:35:121
5198602100,2sleep1519866-21ssh12:16:081
4646652101,4sleep2464759-21ntpq11:40:202
4594372101,6sleep1459182-21sendmail-msp11:40:031
4335802101,5sleep2433680-21ntpq11:20:212
4227842100,1sleep1321rcuc/111:15:161
3916462100,7sleep0393410-21grep10:55:160
3657132100,7sleep0365719-21sshd-auth10:39:160
2871962100,2sleep1287202-21ssh09:46:131
2734132101,7sleep1273522-21ssh09:40:121
2142152100,7sleep2214301-21grep09:00:152
2128322100,2sleep1222-21plymouthd08:55:211
1869682100,7sleep0187088-21ntpq08:35:200
1695522101,7sleep0169809-21irqcore08:25:180
1369192101,6sleep1137182-21latency_hist08:00:011
85816292,3sleep185819-21apt-get07:20:121
79865294,3sleep20-21swapper/207:15:162
70969290,6sleep271044-21/usr/sbin/munin07:10:152
550177291,4sleep0550212-21ntpq12:35:230
544940291,4sleep2544946-21ssh12:35:132
542420291,5sleep2542468-21ntpq12:30:202
526209290,6sleep1521555-21/usr/sbin/munin12:20:211
519819290,6sleep2519825-21ssh12:16:022
492979293,3sleep0494667-21kthreadcore12:00:190
489658290,1sleep20-21swapper/211:58:242
481995291,4sleep2222-21plymouthd11:53:472
474001291,6sleep2474005-21ssh11:48:022
442429291,6sleep1442435-21ssh11:26:281
428342290,6sleep1222-21plymouthd11:20:031
427200292,4sleep2350480-21kworker/u16:4+nfsiod11:17:272
425867291,4sleep0222-21plymouthd11:15:200
365972290,2sleep2222-21plymouthd10:39:582
302958290,3sleep2302964-21ssh09:56:562
272403292,4sleep0222-21plymouthd09:38:190
249644292,4sleep2233468-21kworker/u16:4+xprtiod09:24:452
233756290,2sleep1222-21plymouthd09:13:331
195247290,6sleep1195807-21ps08:45:191
143630291,4sleep1143632-21apt-get08:05:141
138181291,5sleep1139143-21cut08:00:171
92236281,4sleep092269-21apt-get07:25:120
91707280,1sleep20-21swapper/207:22:092
536801281,4sleep2536857-21systemctl12:30:012
536317280,3sleep1536319-21ssh12:28:341
513333280,6sleep2513335-21ssh12:14:362
512218280,2sleep1512224-21ssh12:11:181
505404280,6sleep20-21swapper/212:09:072
490575281,3sleep1490586-21ssh12:00:121
476311280,5sleep1476470-21kthreadcore11:50:181
458362280,1sleep00-21swapper/011:37:500
450436280,2sleep20-21swapper/211:32:142
450130282,3sleep0222-21plymouthd11:31:240
438548280,5sleep2440219-21kthreadcore11:25:172
418817280,2sleep2222-21plymouthd11:10:412
397425281,4sleep1397429-21ssh11:00:151
381573280,2sleep2381639-21appstreamcli10:50:012
365770280,6sleep1365776-21ssh10:39:251
357512284,2sleep00-21swapper/010:32:550
334712281,4sleep1334716-21ssh10:19:171
319839280,4sleep1222-21plymouthd10:10:101
319017280,2sleep2222-21plymouthd10:08:442
311729280,4sleep2311733-21ssh10:04:582
282508280,6sleep2283525-21grep09:45:182
242306281,4sleep1242059-21sendmail-msp09:20:071
235399280,5sleep2236233-21kthreadcore09:15:152
235399280,5sleep2236233-21kthreadcore09:15:152
234985280,5sleep1235397-21irqcore09:15:141
234985280,5sleep1235397-21irqcore09:15:141
232776280,2sleep0222-21plymouthd09:10:400
225604281,4sleep0225651-21ntp_states09:05:220
214019281,4sleep1213799-21sendmail-msp09:00:061
207179280,1sleep10-21swapper/108:52:501
207040280,1sleep20-21swapper/208:51:012
206486281,4sleep0206512-21ntpq08:50:230
193569281,4sleep2193605-21ntpq08:40:232
177143280,5sleep0178858-21kthreadcore08:30:200
175054280,2sleep2222-21plymouthd08:27:362
174255281,4sleep1174301-21ntpq08:25:231
168841280,2sleep10-21swapper/108:24:301
162193281,4sleep0222-21plymouthd08:16:110
156090280,5sleep072-21kcompactd008:14:310
124363282,3sleep2124155-21appstreamcli07:50:042
110315281,4sleep2110357-21ntpq07:35:242
110315281,4sleep2110357-21ntpq07:35:242
104779281,4sleep2104834-21munin-run07:35:002
98319270,3sleep2222-21plymouthd07:29:232
92884271,3sleep193731-21kthreadcore07:25:171
85785271,3sleep0222-21plymouthd07:20:110
76779270,5sleep10-21swapper/107:12:021
511962270,4sleep0511968-21ssh12:10:370
498352270,3sleep00-21swapper/012:05:120
497497271,3sleep2222-21plymouthd12:03:342
482724270,1sleep00-21swapper/011:55:110
459430270,4sleep0459436-21ssh11:40:020
435609270,1sleep00-21swapper/011:24:150
403964270,2sleep0222-21plymouthd11:02:340
389657270,3sleep2222-21plymouthd10:55:102
389598271,4sleep1672-21dbus-daemon10:55:051
387164271,3sleep1387202-21ssh10:50:241
380023270,4sleep2222-21plymouthd10:45:362
380016270,4sleep1222-21plymouthd10:45:351
373191270,5sleep2373195-21ssh10:43:152
342218270,1sleep10-21swapper/110:23:211
334705270,4sleep0334711-21ssh10:19:160
334566272,3sleep2431ktimers/210:18:532
325057270,4sleep2325098-21ntpq10:10:192
317033271,3sleep0317228-21ssh10:05:200
304369271,3sleep1304364-21apt-get10:00:121
304331271,3sleep0304058-21sendmail-msp10:00:110
285316270,1sleep00-21swapper/009:45:200
257878271,3sleep2257881-21apt-get09:30:142
257878271,3sleep2257881-21apt-get09:30:142
248525270,1sleep0222-21plymouthd09:21:300
226207270,1sleep10-21swapper/109:06:081
220872271,3sleep2221799-21kernelversion09:05:162
214024270,5sleep086188-21systemd-journal09:00:090
213477270,1sleep20-21swapper/208:56:392
212789271,4sleep0212830-21ntpq08:55:200
194823270,3sleep2222-21plymouthd08:45:042
188037270,1sleep1222-21plymouthd08:39:581
181631271,3sleep11-21systemd08:35:011
155793270,4sleep1222-21plymouthd08:10:431
144674270,4sleep2145699-21grep08:05:202
139145271,4sleep2222-21plymouthd08:00:182
130216270,1sleep10-21swapper/107:50:591
120317270,4sleep2122161-21kthreadcore07:45:192
117529270,1sleep2222-21plymouthd07:42:582
110939270,5sleep1222-21plymouthd07:36:371
110939270,5sleep1222-21plymouthd07:36:361
76835260,1sleep00-21swapper/007:12:450
543797260,3sleep1543803-21ssh12:32:431
537149260,3sleep00-21swapper/012:30:100
536201260,1sleep00-21swapper/012:28:130
527975260,1sleep00-21swapper/012:22:000
526743261,1sleep20-21swapper/212:20:222
505272260,4sleep1222-21plymouthd12:08:391
451883260,3sleep1451910-21ssh11:35:141
442147260,3sleep0222-21plymouthd11:25:350
418976260,1sleep00-21swapper/011:11:070
407358260,4sleep0409003-21cut11:05:180
405398261,2sleep1405578-21ssh11:05:151
397888261,2sleep2398426-21irqrtprio11:00:192
350836261,3sleep1350875-21apt-get10:30:111
349097260,3sleep0222-21plymouthd10:25:530
342784261,2sleep00-21swapper/010:25:010
319797260,2sleep00-21swapper/010:10:090
294136261,2sleep20-21swapper/209:50:232
275849260,4sleep2277502-21kthreadcore09:40:172
265032260,1sleep00-21swapper/009:34:290
265032260,1sleep00-21swapper/009:34:290
200658260,1sleep00-21swapper/008:46:020
188923260,3sleep1188102-21sendmail-msp08:40:181
182091261,2sleep20-21swapper/208:35:142
175514260,3sleep20-21swapper/208:30:132
168021260,2sleep0222-21plymouthd08:20:240
164188261,2sleep20-21swapper/208:20:182
156128260,1sleep20-21swapper/208:15:012
152725260,4sleep2154595-21kthreadcore08:10:202
149730260,1sleep00-21swapper/008:09:500
137242261,2sleep00-21swapper/008:00:120
123881260,1sleep00-21swapper/007:47:370
123763260,1sleep10-21swapper/107:46:071
117602260,1sleep00-21swapper/007:43:520
111559261,2sleep10-21swapper/107:40:121
110855260,3sleep0222-21plymouthd07:35:300
110855260,3sleep0222-21plymouthd07:35:300
98636250,3sleep10-21swapper/107:30:101
443937251,2sleep10-21swapper/111:30:091
375537251,2sleep00-21swapper/010:45:180
344573250,2sleep1345746-21cut10:25:181
295787250,2sleep0222-21plymouthd09:53:340
279453250,2sleep0222-21plymouthd09:41:110
250543250,2sleep0251405-21sed09:25:150
234780251,2sleep01-21systemd09:15:130
234780251,2sleep01-21systemd09:15:130
233688250,2sleep2222-21plymouthd09:13:232
132071250,2sleep20-21swapper/207:55:182
130801250,3sleep0130834-21apt-get07:55:110
130215250,2sleep0222-21plymouthd07:50:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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