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2026-06-01 - 09:05
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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 Mon Jun 01, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15985921230,1sleep10-21swapper/119:10:141
1859162340,9sleep1331ktimers/119:25:201
159282992623,1cyclictest0-21swapper/321:35:233
15928299241,19cyclictest309095-21turbostat21:04:593
159282992320,1cyclictest0-21swapper/321:55:203
159282992320,1cyclictest0-21swapper/320:20:013
15928299231,17cyclictest330995-21turbostat21:20:013
159282992219,1cyclictest0-21swapper/300:10:153
159282992219,1cyclictest0-21swapper/300:00:033
159282992118,1cyclictest0-21swapper/322:38:013
159282992118,1cyclictest0-21swapper/321:20:063
159282992118,1cyclictest0-21swapper/321:00:003
159282992118,1cyclictest0-21swapper/319:50:293
159282992017,1cyclictest0-21swapper/323:35:013
159282992017,1cyclictest0-21swapper/322:25:283
159282992017,1cyclictest0-21swapper/319:20:013
159282992016,2cyclictest0-21swapper/323:45:253
15928299201,14cyclictest375600-21taskset21:45:263
159282992010,7cyclictest4232512sleep322:17:563
15928299199,7cyclictest2276292sleep320:00:203
159282991916,1cyclictest0-21swapper/323:35:183
159282991916,1cyclictest0-21swapper/323:25:013
159282991916,1cyclictest0-21swapper/320:40:073
159282991916,1cyclictest0-21swapper/300:00:003
15928299191,14cyclictest486293-21chrt23:00:133
15928299191,14cyclictest460589-21taskset22:40:193
15928299191,14cyclictest244748-21taskset20:12:383
15928299191,13cyclictest612304-21taskset00:25:053
15928299191,13cyclictest193709-21taskset19:35:003
159282991816,1cyclictest0-21swapper/321:25:123
159282991816,1cyclictest0-21swapper/321:25:113
159282991815,1cyclictest0-21swapper/323:00:003
159282991815,1cyclictest0-21swapper/322:45:133
159282991815,1cyclictest0-21swapper/300:15:213
15928299181,13cyclictest610547-21taskset00:20:393
15928299181,13cyclictest554784-21taskset23:42:113
15928299181,13cyclictest429659-21taskset22:20:233
15928299181,13cyclictest407721-21taskset22:07:573
15928299181,13cyclictest382928-21taskset21:50:203
15928299181,13cyclictest346711-21taskset21:30:083
15928299181,13cyclictest225574-21taskset19:58:383
15928299181,13cyclictest165361-21taskset19:11:353
15928299181,12cyclictest264430-21taskset20:30:023
2132342172,12sleep2213327-21fschecks_time19:50:172
159282991715,1cyclictest0-21swapper/323:50:193
159282991715,1cyclictest0-21swapper/323:05:163
15928299171,13cyclictest290125-21taskset20:50:063
15928299171,13cyclictest263893-21taskset20:26:243
15928299171,12cyclictest633749-21taskset00:35:403
15928299171,12cyclictest588686-21sleep00:09:593
15928299171,12cyclictest515678-21taskset23:16:203
15928299171,12cyclictest445101-21taskset22:30:213
15928299171,12cyclictest414931-21taskset22:11:083
15928299171,12cyclictest256736-21taskset20:20:243
15928299171,12cyclictest206596-21taskset19:45:033
15928299171,12cyclictest187343-21taskset19:30:113
6020432160,4sleep0602083-21ntpq00:15:250
3114722161,6sleep1313198-21kthreadcore21:05:211
159282991613,1cyclictest0-21swapper/323:10:183
159282991613,1cyclictest0-21swapper/321:40:073
159282991613,1cyclictest0-21swapper/300:30:153
15928299161,12cyclictest476860-21taskset22:51:023
15928299161,12cyclictest393511-21taskset22:00:183
15928299161,12cyclictest315271-21taskset21:07:103
15928299161,12cyclictest283720-21taskset20:45:053
15928299161,12cyclictest270867-21taskset20:35:023
15928299161,12cyclictest232368-21taskset20:05:033
15928299161,12cyclictest186285-21taskset19:25:273
15928299161,12cyclictest168036-21taskset19:15:093
15928299161,11cyclictest524973-21taskset23:25:063
15928299161,11cyclictest315797-21taskset21:10:063
15928299161,11cyclictest202983-21chrt19:40:183
4695622151,2sleep00-21swapper/022:47:150
6272072140,12sleep0627209-21ssh00:34:040
2834572141,9sleep1283489-21/usr/sbin/munin20:44:591
6881130,3low-memory-moni222-21plymouthd23:45:032
5246752130,10sleep0524731-21munin-run23:25:000
2488942130,9sleep0250214-21load20:15:210
5017212121,2sleep20-21swapper/223:10:112
3718332120,9sleep2373001-21kthreadcore21:45:192
2326622120,9sleep1232382-21/usr/sbin/munin20:05:181
5469922111,3sleep2546998-21ssh23:37:092
5241592110,3sleep1524161-21ssh23:23:301
4365352110,1sleep20-21swapper/222:25:202
3508192110,1sleep20-21swapper/221:30:182
2646742110,8sleep0264862-21basename20:30:150
2262242110,8sleep0226371-21hddtemp_smartct20:00:170
6221552100,7sleep2623719-21kthreadcore00:30:172
5889332101,5sleep1588968-21apt-get00:10:081
5847472101,6sleep0584842-21mailstats00:00:280
5705562100,7sleep1570564-21ssh23:53:001
5536822102,5sleep1553719-21awk23:40:251
5327622105,2sleep2431ktimers/223:30:122
5169042101,6sleep1516969-21sendmail-msp23:20:001
4936702100,7sleep1493951-21tar23:05:001
4578332101,6sleep0459509-21tr22:40:180
4540692102,5sleep0222-21plymouthd22:37:090
4165612101,6sleep1222-21plymouthd22:15:131
4165362101,6sleep0416558-21apt-get22:15:110
3544442105,3sleep2431ktimers/221:35:132
1531012101,4sleep20-21swapper/219:05:142
786190,4gdbus555808-21appstreamcli23:45:040
625375291,5sleep1222-21plymouthd00:30:201
604493290,7sleep2523699-1kworker/u16:4+flush-8:000:20:072
565300290,6sleep0566339-21kthreadcore23:50:180
553942290,6sleep0554178-21sed23:40:280
514768291,6sleep0514815-21ntpq23:15:220
493566291,5sleep1493570-21ssh23:04:411
492171290,1sleep20-21swapper/223:00:332
463846290,6sleep2464526-21kthreadcore22:45:172
455325291,4sleep1455366-21ssh22:40:111
445862291,5sleep1445866-21ssh22:30:571
432279290,6sleep1432417-21gltestperf22:25:151
425731290,6sleep1427194-21kthreadcore22:20:181
392285290,2sleep2392291-21ssh21:58:312
354377291,2sleep1354381-21ssh21:35:081
353238292,4sleep1672-21dbus-daemon21:32:141
345111290,6sleep0345117-21ssh21:26:090
345111290,6sleep0345117-21ssh21:26:080
336874290,6sleep0337108-21unixbench_multi21:20:280
321110290,5sleep2270547-21kworker/u16:0+rpciod21:10:222
303106290,3sleep0303166-21fschecks_count21:00:140
290133291,4sleep1290166-21apt-get20:50:131
243978290,6sleep1244017-21ntpq20:10:241
214446290,6sleep1215473-21grep19:50:201
169091290,6sleep1170086-21kthreadcore19:15:191
165316290,2sleep0222-21plymouthd19:11:020
155603290,6sleep0157425-21kthreadcore19:05:200
688180,2low-memory-moni0-21swapper/200:18:432
617818282,3sleep0222-21plymouthd00:25:270
612346281,3sleep2612378-21apt-get00:25:132
609901282,3sleep0609949-21ntpq00:20:250
604537281,3sleep1604572-21apt-get00:20:141
603746281,4sleep1603729-21fwupd00:18:431
596406281,4sleep0596615-21latency_hist00:15:000
585384281,4sleep1585388-21ssh00:00:571
573923280,5sleep0575575-21kthreadcore23:55:200
562493282,3sleep1222-21plymouthd23:46:511
553483281,4sleep2553574-21ssh23:40:232
531942280,1sleep00-21swapper/023:28:300
500972280,6sleep2500973-21sh23:08:382
470790281,3sleep1470825-21apt-get22:50:141
461613280,2sleep2461619-21ssh22:41:332
454893282,3sleep2222-21plymouthd22:39:362
438272280,1sleep00-21swapper/022:26:180
422050280,2sleep2422130-21ssh22:15:262
414088281,4sleep1414137-21ntpq22:10:231
408412280,5sleep2222-21plymouthd22:10:012
402408280,5sleep1403330-21cut22:05:191
393391281,4sleep2393510-21perl22:00:182
377667281,3sleep1377702-21apt-get21:50:111
370889280,4sleep1371832-21kthreadcore21:45:181
360761280,2sleep0222-21plymouthd21:36:430
336669281,4sleep1336696-21ssh21:20:241
331819280,5sleep2332747-21irqstats21:20:162
326359281,5sleep00-21swapper/021:15:210
322169280,5sleep0322175-21ssh21:11:540
321999280,2sleep1322005-21ssh21:11:251
283246280,2sleep0222-21plymouthd20:42:180
282552281,4sleep2282599-21ntp_states20:40:232
263968280,2sleep1222-21plymouthd20:27:241
231773280,2sleep1222-21plymouthd20:00:421
225540280,1sleep1222-21plymouthd19:58:131
224736281,4sleep2224776-21ntpq19:55:212
219843281,4sleep0219986-21tail19:55:150
212553280,5sleep1222-21plymouthd19:47:341
194135280,5sleep1194800-21cut19:35:151
187349281,4sleep0187493-21df19:30:140
181818280,5sleep2182616-21tr19:25:182
174011280,2sleep0222-21plymouthd19:17:460
159079280,2sleep1222-21plymouthd19:09:051
595898270,4sleep2595903-21diskmemload00:13:252
572063270,4sleep2572990-21sed23:55:182
571156271,3sleep2222-21plymouthd23:54:462
546323271,3sleep1222-21plymouthd23:35:281
525042270,3sleep1525039-21apt-get23:25:131
524321270,1sleep2222-21plymouthd23:23:592
516084270,4sleep2516092-21ssh23:17:362
500001270,3sleep0222-21plymouthd23:05:470
485015270,4sleep1222-21plymouthd22:57:301
484730270,1sleep00-21swapper/022:56:330
478505271,3sleep2478538-21apt-get22:55:112
478093271,3sleep2222-21plymouthd22:54:442
454147272,2sleep134-21ksoftirqd/122:37:221
446589271,4sleep20-21swapper/222:33:062
446577270,1sleep00-21swapper/022:33:050
429440270,4sleep0429556-21/usr/sbin/munin22:20:220
424511271,3sleep2424710-21diskmemload22:20:152
414891271,3sleep0222-21plymouthd22:11:030
414717271,3sleep2414723-21ssh22:10:322
400337270,5sleep1400343-21ssh22:04:061
392075270,1sleep00-21swapper/021:57:480
385394271,3sleep1385429-21apt-get21:55:131
368108271,3sleep1222-21plymouthd21:40:281
362250270,4sleep2362326-21tr21:40:132
362155270,4sleep0361926-21sendmail-msp21:40:030
323516271,3sleep1222-21plymouthd21:15:151
315197270,4sleep2222-21plymouthd21:06:142
310491271,3sleep0311471-21cut21:05:200
303364270,4sleep2304081-21sed21:00:162
301725270,4sleep2301772-21ntp_states20:55:242
301689270,1sleep10-21swapper/120:55:231
290608270,1sleep2222-21plymouthd20:50:182
289779271,3sleep2222-21plymouthd20:48:542
289051271,4sleep0289122-21sendmail_mailst20:45:270
276746270,1sleep1222-21plymouthd20:36:341
264863271,3sleep10-21swapper/120:30:161
263292271,3sleep2263331-21ntp_states20:25:242
256829271,3sleep1256862-21ntpq20:20:261
238811271,3sleep0238807-21apt-get20:10:140
238506270,4sleep21-21systemd20:10:002
231784270,1sleep20-21swapper/220:00:512
212539270,1sleep20-21swapper/219:47:232
201556271,4sleep2202982-21cut19:40:182
199684270,4sleep0222-21plymouthd19:37:430
189355272,2sleep1190380-21kthreadcore19:30:191
153102270,3sleep30-21swapper/319:05:153
634025260,1sleep00-21swapper/000:36:260
633892261,2sleep2222-21plymouthd00:36:042
633735260,4sleep1222-21plymouthd00:35:391
618491260,1sleep10-21swapper/100:26:161
588008260,3sleep1588014-21ssh00:08:081
587827260,1sleep20-21swapper/200:07:292
587481260,2sleep0222-21plymouthd00:06:310
584676261,3sleep2584710-21ntpq00:00:262
539717260,2sleep0222-21plymouthd23:33:420
538825260,3sleep1538831-21ssh23:30:591
531950261,2sleep20-21swapper/223:28:312
508508260,1sleep10-21swapper/123:13:111
507637261,2sleep0222-21plymouthd23:10:300
486188261,3sleep0485975-21appstreamcli23:00:030
477651260,3sleep0222-21plymouthd22:53:290
463477260,3sleep10-21swapper/122:45:161
383954260,1sleep20-21swapper/221:51:402
382974261,3sleep0383025-21ntp_states21:50:220
375968260,1sleep00-21swapper/021:45:580
353360260,1sleep00-21swapper/021:32:410
346277260,4sleep20-21swapper/221:29:402
346277260,4sleep20-21swapper/221:29:392
340421260,3sleep1341358-21grep21:25:181
340421260,3sleep1341358-21grep21:25:171
323495260,1sleep20-21swapper/221:15:122
302921261,2sleep10-21swapper/121:00:111
297007261,3sleep0222-21plymouthd20:55:180
290127260,3sleep0222-21plymouthd20:50:080
276822260,4sleep01-21systemd20:37:340
270866260,2sleep2222-21plymouthd20:35:032
270285261,2sleep2222-21plymouthd20:30:532
263208260,3sleep0263248-21ntpq20:25:230
257355260,2sleep2222-21plymouthd20:20:402
251038260,1sleep10-21swapper/120:16:261
250352260,3sleep2250392-21ntpq20:15:222
241181260,3sleep2241856-21kthreadcore20:10:212
238349260,3sleep0222-21plymouthd20:07:590
218382260,3sleep0218429-21ps19:50:270
206609260,3sleep00-21swapper/019:45:130
206012261,2sleep1222-21plymouthd19:40:501
206001260,1sleep00-21swapper/019:40:410
192804261,2sleep2222-21plymouthd19:30:282
184316261,2sleep0222-21plymouthd19:25:200
180345261,3sleep0222-21plymouthd19:21:360
180282260,1sleep20-21swapper/219:20:462
179998260,1sleep1222-21plymouthd19:20:291
164807260,1sleep20-21swapper/219:10:232
571576250,2sleep10-21swapper/123:55:131
547049250,2sleep0222-21plymouthd23:37:200
401030250,2sleep0222-21plymouthd22:05:140
400086251,2sleep00-21swapper/022:03:170
286344250,2sleep10-21swapper/120:45:201
256782250,2sleep0222-21plymouthd20:20:250
199626250,2sleep2222-21plymouthd19:37:012
173851250,2sleep2222-21plymouthd19:15:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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