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2026-05-27 - 16:22
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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 Wed May 27, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20662921220,1sleep30-21swapper/308:50:183
964512260,1sleep30-21swapper/307:25:183
73400992623,1cyclictest0-21swapper/311:20:003
73400992522,1cyclictest0-21swapper/310:00:043
73400992522,1cyclictest0-21swapper/309:30:123
73400992522,1cyclictest0-21swapper/307:54:593
73400992521,1cyclictest0-21swapper/307:44:593
73400992422,1cyclictest0-21swapper/311:00:193
73400992421,1cyclictest0-21swapper/310:40:013
73400992320,1cyclictest0-21swapper/310:10:003
73400992320,1cyclictest0-21swapper/310:09:593
73400992219,1cyclictest0-21swapper/312:25:253
73400992219,1cyclictest0-21swapper/308:40:013
73400992118,1cyclictest0-21swapper/311:52:483
73400992118,1cyclictest0-21swapper/311:00:013
73400992118,1cyclictest0-21swapper/310:15:253
73400992118,1cyclictest0-21swapper/308:20:133
73400992018,1cyclictest0-21swapper/311:10:003
73400992017,1cyclictest0-21swapper/310:20:053
7340099201,14cyclictest455243-21taskset11:35:003
7340099201,14cyclictest299953-21sleep09:55:003
7340099199,7cyclictest525772-21taskset12:20:153
7340099199,7cyclictest5006102sleep312:01:033
7340099192,13cyclictest179804-21taskset08:30:173
73400991917,1cyclictest0-21swapper/311:10:173
73400991916,1cyclictest0-21swapper/311:40:143
73400991916,1cyclictest0-21swapper/311:40:143
73400991916,1cyclictest0-21swapper/311:35:273
73400991916,1cyclictest0-21swapper/311:35:273
73400991916,1cyclictest0-21swapper/310:50:013
73400991916,1cyclictest0-21swapper/309:20:063
7340099191,14cyclictest306515-21taskset09:56:373
7340099191,14cyclictest223063-21taskset09:00:283
7340099191,14cyclictest164415-21taskset08:15:223
7340099191,14cyclictest164415-21taskset08:15:223
7340099191,13cyclictest107862-21chrt07:35:133
7340099188,7cyclictest3924782sleep310:53:103
7340099182,13cyclictest79507-21taskset07:12:033
7340099182,12cyclictest158628-21chrt08:11:493
73400991816,1cyclictest0-21swapper/312:40:013
73400991816,1cyclictest0-21swapper/311:20:063
73400991815,1cyclictest0-21swapper/309:45:163
7340099181,14cyclictest370104-21chrt10:40:113
7340099181,13cyclictest94518-21taskset07:22:143
7340099181,13cyclictest547403-21taskset12:31:333
7340099181,13cyclictest524758-21taskset12:18:423
7340099181,13cyclictest471508-21taskset11:45:153
7340099181,13cyclictest446043-21taskset11:25:543
7340099181,13cyclictest284246-21taskset09:44:383
7340099181,13cyclictest274755-21taskset09:35:243
7340099181,13cyclictest236905-21taskset09:12:233
7340099181,13cyclictest216035-21taskset08:55:223
7340099181,13cyclictest177791-21taskset08:25:403
7340099181,13cyclictest177791-21taskset08:25:403
7340099181,13cyclictest146059-21taskset08:04:593
7340099181,13cyclictest139288-21taskset07:55:413
883312171,3sleep20-21swapper/207:20:012
73400991714,1cyclictest0-21swapper/309:15:143
73400991714,1cyclictest0-21swapper/307:30:163
73400991713,1cyclictest0-21swapper/312:05:153
7340099171,13cyclictest517152-21taskset12:14:093
7340099171,13cyclictest361647-21taskset10:34:103
7340099171,13cyclictest352170-21chrt10:25:243
7340099171,13cyclictest330118-21taskset10:12:333
7340099171,13cyclictest260192-21taskset09:27:103
4637152170,4sleep0464288-21cut11:40:150
4637152170,4sleep0464288-21cut11:40:150
7340099161,12cyclictest87471-21taskset07:15:243
7340099161,12cyclictest492648-21taskset11:55:363
7340099161,12cyclictest197607-21taskset08:45:043
7340099161,12cyclictest120726-21taskset07:45:033
7340099161,11cyclictest223993-21taskset09:05:123
7340099161,11cyclictest191664-21chrt08:40:163
7340099161,11cyclictest146341-21taskset08:05:123
1389512161,11sleep2139207-21grep07:55:292
4856682150,4sleep0485674-21ssh11:53:100
3850172150,1sleep00-21swapper/010:49:070
3689082150,8sleep2368914-21ssh10:37:432
5255622141,2sleep00-21swapper/012:20:120
3571272141,3sleep2358816-21kthreadcore10:30:172
2822022141,10sleep1282239-21ntpq09:40:191
5478132131,2sleep20-21swapper/212:32:422
5266532130,7sleep1527371-21kthreadcore12:20:181
5153262131,9sleep0515379-21ntp_states12:10:210
4928302131,2sleep10-21swapper/111:56:081
5257202120,9sleep2525771-21/usr/sbin/munin12:20:152
3520272121,3sleep0222-21plymouthd10:25:220
3188002120,9sleep1320520-21grep10:05:181
3188002120,9sleep1320520-21grep10:05:181
2847402121,8sleep0284835-21cpuspeed_turbos09:45:120
2091902120,9sleep1209330-21ntpq08:50:211
1812832120,9sleep0181458-21kthreadcore08:30:190
731342111,7sleep00-21swapper/007:08:250
5092352111,7sleep0222-21plymouthd12:08:380
5051382110,9sleep2506871-21kthreadcore12:05:192
4946972110,8sleep1494777-21fschecks_time12:00:131
4491942111,7sleep0449231-21kthreadcore11:30:170
4401762110,8sleep0440293-21perl11:25:150
3375952110,8sleep2337599-21ssh10:16:462
2701682110,7sleep2270899-21grep09:35:162
2028902112,5sleep0202929-21ntpq08:45:230
1676562111,3sleep10-21swapper/108:20:171
1536672111,7sleep2154509-21tr08:10:172
1332352110,8sleep1133290-21/usr/sbin/munin07:55:001
678472101,6sleep168699-21grep07:05:171
5247412100,7sleep0524747-21ssh12:18:400
5100172101,3sleep1222-21plymouthd12:10:111
4400082100,6sleep2440014-21ssh11:25:142
4324222100,7sleep0432539-21/usr/sbin/munin11:20:150
4222622101,5sleep2422529-21awk11:10:262
4070722100,7sleep2407074-21ssh11:00:282
4011722100,2sleep0222-21plymouthd11:00:100
3930602101,6sleep0222-21plymouthd10:54:530
3756692100,7sleep0375852-21sed10:40:250
2839402100,2sleep00-21swapper/009:43:480
2519032101,2sleep20-21swapper/209:20:372
2099762101,5sleep2222-21plymouthd08:50:302
1912042101,5sleep2222-21plymouthd08:40:112
1908002100,2sleep1222-21plymouthd08:38:341
1784332102,4sleep2178430-21apt-get08:30:132
73252290,2sleep30-21swapper/307:09:563
494074290,6sleep2494078-21ssh11:59:452
462813290,1sleep10-21swapper/111:39:321
462813290,1sleep10-21swapper/111:39:311
455982291,5sleep2456783-21cut11:35:162
455982291,5sleep2456783-21cut11:35:162
450259290,6sleep1451907-21kthreadcore11:30:181
430797290,7sleep0430803-21ssh11:16:490
422594290,6sleep1422600-21ssh11:10:331
415030290,6sleep1415036-21ssh11:06:081
408913291,4sleep2408954-21ssh11:05:092
401213291,4sleep1222-21plymouthd11:00:111
400352290,3sleep0222-21plymouthd10:58:340
367661290,6sleep0367786-21cut10:35:240
355941290,6sleep1355975-21kthreadcore10:30:151
345287290,6sleep2345293-21ssh10:21:312
329827290,2sleep10-21swapper/110:11:401
323870293,4sleep00-21swapper/010:10:140
321667292,4sleep0222-21plymouthd10:05:330
321667292,4sleep0222-21plymouthd10:05:330
315754291,4sleep2315786-21apt-get10:05:112
315754291,4sleep2315786-21apt-get10:05:112
294734290,6sleep0296453-21kthreadcore09:50:180
260759290,1sleep00-21swapper/009:28:530
246341290,2sleep10-21swapper/109:20:161
170919291,5sleep0171034-21python308:20:250
152332290,2sleep0222-21plymouthd08:08:330
152292291,4sleep2222-21plymouthd08:08:042
146000290,2sleep2222-21plymouthd08:04:152
145203291,4sleep0145230-21ntpq08:00:240
138664294,3sleep1331ktimers/107:55:241
131905291,5sleep2132240-21head07:50:202
126662290,2sleep0222-21plymouthd07:47:340
101412290,2sleep20-21swapper/207:30:112
100799292,3sleep0222-21plymouthd07:25:330
89457283,2sleep10-21swapper/107:20:151
82198281,4sleep00-21swapper/007:15:140
556122280,2sleep10-21swapper/112:39:261
546256280,2sleep1546399-21ssh12:30:191
515177281,4sleep2515274-21ntpq12:10:202
478813281,4sleep1222-21plymouthd11:50:111
477806280,2sleep0222-21plymouthd11:48:050
477508282,3sleep2222-21plymouthd11:47:142
471232281,4sleep1471339-21fschecks_time11:45:141
454327281,4sleep2222-21plymouthd11:32:322
400835281,1sleep2171rcu_preempt11:00:002
375496280,5sleep2368631-21kworker/u16:5+flush-8:010:40:222
349139280,2sleep1350708-21ssh10:25:191
346790281,3sleep2346825-21apt-get10:25:122
345106282,3sleep0222-21plymouthd10:21:000
344451281,4sleep1344571-21python310:20:261
314614280,2sleep0222-21plymouthd10:02:290
299388280,6sleep1299394-21ssh09:53:271
229797280,1sleep10-21swapper/109:07:531
216652280,2sleep2222-21plymouthd08:56:112
216087281,4sleep0216113-21ntpq08:55:250
204053280,4sleep0222-21plymouthd08:50:120
197050280,2sleep0222-21plymouthd08:41:140
171420281,1sleep20-21swapper/208:21:102
127158281,4sleep0127314-21diskstats07:50:140
120193280,4sleep1222-21plymouthd07:41:291
113678280,1sleep20-21swapper/207:36:092
113055281,4sleep0113097-21ntpq07:35:230
103410281,5sleep10-21swapper/107:30:191
88619270,3sleep0222-21plymouthd07:20:110
79447270,1sleep10-21swapper/107:11:171
67162271,2sleep20-21swapper/207:05:102
538911270,4sleep0539045-21sed12:25:260
538172270,5sleep2538578-21needreboot12:25:202
519209270,4sleep1519243-21kthreadcore12:15:171
503728270,4sleep1505137-21grep12:05:181
494443271,4sleep20-21swapper/212:00:022
486640271,3sleep0486675-21apt-get11:55:110
469772270,1sleep1222-21plymouthd11:42:211
469772270,1sleep1222-21plymouthd11:42:201
465287270,5sleep2466964-21kthreadcore11:40:172
465287270,5sleep2466964-21kthreadcore11:40:162
460818271,4sleep0460868-21awk11:35:220
460818271,4sleep0460868-21awk11:35:220
438295270,4sleep2222-21plymouthd11:20:572
430938270,1sleep20-21swapper/211:17:202
421773271,3sleep0421917-21ntpq11:10:200
392569270,4sleep2392575-21ssh10:53:252
385619270,1sleep1385625-21ssh10:50:051
377892271,3sleep1377895-21apt-get10:45:111
376536270,4sleep1376542-21ssh10:42:021
361307270,1sleep0222-21plymouthd10:33:070
330748271,3sleep2222-21plymouthd10:14:252
309739271,3sleep2311338-21kthreadcore10:00:172
306755270,4sleep2306761-21ssh09:57:252
306175270,1sleep10-21swapper/109:55:401
290035270,1sleep20-21swapper/209:45:232
284121271,4sleep2284125-21ssh09:44:182
275156270,1sleep00-21swapper/009:35:380
267525271,3sleep2222-21plymouthd09:31:032
260088271,4sleep1260094-21ssh09:26:531
253742271,2sleep20-21swapper/209:25:142
245341270,1sleep00-21swapper/009:19:220
244030270,4sleep2244036-21ssh09:15:322
244025270,1sleep10-21swapper/109:15:311
237009270,1sleep20-21swapper/209:12:432
234408270,4sleep0235471-21memory09:10:190
223309271,4sleep0222-21plymouthd09:02:230
223207270,1sleep10-21swapper/109:01:031
217229271,3sleep2217011-21sendmail-msp09:00:042
203765270,1sleep10-21swapper/108:49:451
177816271,3sleep2222-21plymouthd08:26:002
177816271,3sleep2222-21plymouthd08:25:592
164978270,1sleep20-21swapper/208:15:462
164978270,1sleep20-21swapper/208:15:462
158028270,4sleep1222-21plymouthd08:10:241
152391270,1sleep10-21swapper/108:09:191
139352271,3sleep0222-21plymouthd07:56:310
126798270,1sleep10-21swapper/107:49:191
123381270,5sleep20-21swapper/207:45:192
120207270,1sleep00-21swapper/007:41:400
113839270,1sleep10-21swapper/107:37:561
101450271,3sleep0101598-21df07:30:140
95603260,4sleep296447-21kthreadcore07:25:182
95410260,3sleep195601-21cut07:25:171
94482260,3sleep2222-21plymouthd07:21:462
82154260,2sleep1222-21plymouthd07:15:071
79489260,1sleep00-21swapper/007:11:480
73554260,3sleep2222-21plymouthd07:10:032
555828260,2sleep2222-21plymouthd12:38:352
555685260,1sleep00-21swapper/012:38:050
547134260,3sleep0222-21plymouthd12:30:420
520570261,2sleep20-21swapper/212:15:182
501022260,3sleep0222-21plymouthd12:02:170
478768260,3sleep2478770-21ssh11:50:042
445939260,1sleep10-21swapper/111:25:361
432213260,3sleep1432250-21apt-get11:20:121
430654260,1sleep10-21swapper/111:16:271
414357260,3sleep0414486-21python311:05:230
393396260,4sleep1360680-21kworker/u16:2+rpciod10:55:061
362202260,1sleep10-21swapper/110:35:051
337981260,2sleep0222-21plymouthd10:17:480
337590260,3sleep1222-21plymouthd10:16:451
307329261,2sleep0222-21plymouthd09:59:000
292476261,2sleep20-21swapper/209:50:112
286459260,3sleep1288074-21ssh09:45:171
269203261,2sleep10-21swapper/109:35:111
266707260,3sleep1266760-21ntpq09:30:211
266666260,3sleep0222-21plymouthd09:30:200
251286260,3sleep0251330-21ntpq09:20:220
230366261,2sleep10-21swapper/109:10:131
229614260,1sleep20-21swapper/209:05:292
223793260,3sleep0222-21plymouthd09:05:030
216862260,3sleep1222-21plymouthd08:58:551
198388260,4sleep2199232-21cut08:45:172
191203260,1sleep10-21swapper/108:40:101
190701260,3sleep2222-21plymouthd08:37:182
190597260,1sleep00-21swapper/008:35:570
178397261,2sleep10-21swapper/108:30:121
177412260,4sleep1177544-21sed08:25:271
177412260,4sleep1177544-21sed08:25:271
172456260,3sleep0173392-21irqstats08:25:180
172456260,3sleep0173392-21irqstats08:25:180
159157261,2sleep0159179-21apt-get08:15:120
159157261,2sleep0159179-21apt-get08:15:120
158600260,3sleep0222-21plymouthd08:11:270
139957260,2sleep10-21swapper/108:00:131
120343260,3sleep2222-21plymouthd07:43:262
536344251,2sleep10-21swapper/112:25:191
377902250,2sleep20-21swapper/210:45:122
308965250,2sleep1309738-21tr10:00:171
164500250,2sleep1222-21plymouthd08:15:251
164500250,2sleep1222-21plymouthd08:15:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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