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2026-07-22 - 17:59
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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 Jul 22, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30904424380,1sleep0309036-21ntpq10:40:240
6067992824,2cyclictest0-21swapper/311:55:003
6067992618,6cyclictest319169-21sleep10:50:003
606799251,9cyclictest104370-21turbostat08:25:003
606799247,13cyclictest33785-21turbostat07:34:553
6067992421,1cyclictest0-21swapper/312:20:083
6067992421,1cyclictest0-21swapper/312:10:163
6067992320,1cyclictest0-21swapper/311:40:183
6067992320,1cyclictest0-21swapper/311:20:003
606799220,2cyclictest0-21swapper/308:10:003
606799212,15cyclictest184687-21taskset09:22:413
6067992118,1cyclictest0-21swapper/312:35:213
6067992118,1cyclictest0-21swapper/310:38:323
606799211,16cyclictest452910-21taskset12:15:013
606799211,15cyclictest389835-21turbostat11:35:003
606799202,13cyclictest117125-21taskset08:34:223
6067992017,1cyclictest0-21swapper/311:20:153
6067992017,1cyclictest0-21swapper/310:20:213
6067992017,1cyclictest0-21swapper/309:30:163
6067992017,1cyclictest0-21swapper/307:20:053
606799201,15cyclictest287213-21taskset10:28:533
606799201,15cyclictest232151-21taskset09:53:553
606799201,15cyclictest162328-21chrt09:10:103
606799201,14cyclictest46613-21turbostat07:40:013
606799201,14cyclictest374539-21chrt11:25:143
6067992010,3cyclictest1554702sleep309:03:343
606799200,16cyclictest256125-21turbostat10:10:003
6067991916,1cyclictest0-21swapper/312:00:153
6067991916,1cyclictest0-21swapper/312:00:143
6067991916,1cyclictest0-21swapper/311:05:263
6067991916,1cyclictest0-21swapper/310:40:223
6067991916,1cyclictest0-21swapper/310:00:203
606799191,15cyclictest207539-21taskset09:35:483
606799191,14cyclictest412058-21taskset11:46:023
606799191,14cyclictest412058-21taskset11:46:013
606799191,14cyclictest19318-21taskset07:15:203
606799191,14cyclictest177455-21taskset09:19:283
606799191,14cyclictest110612-21taskset08:27:563
606799186,7cyclictest593202sleep307:48:493
606799182,13cyclictest72212-21taskset07:59:263
6067991815,1cyclictest0-21swapper/312:05:153
6067991815,1cyclictest0-21swapper/308:35:273
606799181,14cyclictest341881-21taskset11:02:443
606799181,14cyclictest224035-21taskset09:47:593
606799181,14cyclictest193017-21taskset09:29:073
606799181,13cyclictest78781-21sleep08:05:003
606799181,13cyclictest428578-21taskset11:58:163
606799181,13cyclictest295488-21taskset10:34:543
606799181,13cyclictest240396-21turbostat10:00:003
606799181,13cyclictest0-21swapper/311:35:213
606799181,12cyclictest97568-21taskset08:15:503
606799181,12cyclictest215641-21chrt09:41:163
606799171,3cyclictest0-21swapper/308:10:133
606799171,13cyclictest65537-21taskset07:51:403
606799171,13cyclictest325525-21taskset10:51:063
606799171,13cyclictest270475-21taskset10:16:223
606799171,13cyclictest262590-21taskset10:11:083
606799171,12cyclictest476332-21turbostat12:30:003
606799171,12cyclictest46863-21chrt07:40:053
606799171,12cyclictest333390-21taskset10:56:103
606799171,12cyclictest32837-21chrt07:25:223
606799171,12cyclictest155852-21taskset09:05:093
606799171,12cyclictest142754-21turbostat08:55:003
3116602172,11sleep2311655-21apt-get10:45:112
2223612179,6sleep1222509-21ntpq09:45:211
606799162,3cyclictest0-21swapper/307:10:133
606799161,2cyclictest0-21swapper/312:30:133
606799161,2cyclictest0-21swapper/311:10:123
606799161,2cyclictest0-21swapper/308:45:123
606799161,2cyclictest0-21swapper/308:40:123
606799161,12cyclictest148939-21taskset08:57:433
585562161,8sleep058588-21/usr/sbin/munin07:45:240
2564662161,4sleep20-21swapper/210:10:122
3765732151,5sleep0378277-21kthreadcore11:25:200
3745322152,10sleep2374538-21ssh11:25:142
2931432150,2sleep20-21swapper/210:30:212
4688502149,2sleep00-21swapper/012:25:120
4348942142,9sleep1434931-21ntpq12:00:251
4348942142,9sleep1434931-21ntpq12:00:251
3108792141,10sleep2310883-21ssh10:43:522
2169792141,9sleep0217011-21/usr/sbin/munin09:45:000
1648902140,6sleep1166571-21kthreadcore09:10:161
880372131,8sleep189889-21kthreadcore08:10:201
4534052130,10sleep2453719-21irqcore12:15:172
3028922132,4sleep0222-21plymouthd10:38:450
2853612131,3sleep1285404-21ntpq10:25:221
1619622130,3sleep2222-21plymouthd09:09:542
1293262130,10sleep2129471-21sort08:40:272
1048392131,8sleep2104970-21gltestperf08:25:152
606799121,2cyclictest0-21swapper/307:10:013
465832120,3sleep2222-21plymouthd07:40:022
3638632120,1sleep00-21swapper/011:15:210
2789122120,3sleep0222-21plymouthd10:22:450
2639202120,9sleep1263924-21ssh10:14:561
2499722121,7sleep1250897-21kthreadcore10:05:181
1225902121,8sleep2122627-21ntpq08:35:222
500522110,8sleep151643-21cut07:40:211
4908002110,2sleep1222-21plymouthd12:36:521
4673882110,4sleep1222-21plymouthd12:21:581
4282212110,8sleep0428223-21ssh11:57:150
4218872110,8sleep2421906-21ssh11:55:162
4047252110,8sleep2404730-21sh11:42:332
3652962110,8sleep2365302-21ssh11:17:282
3326132110,1sleep10-21swapper/110:55:261
3190952110,3sleep00-21swapper/010:49:550
2670792110,1sleep0221rcuc/010:15:170
2432532111,7sleep1244697-21kthreadcore10:00:211
2383102111,7sleep1238400-21/usr/sbin/munin09:55:281
1863142114,4sleep0186863-21sed09:25:200
756402101,6sleep172316-21sendmail-msp08:00:211
597172101,4sleep0222-21plymouthd07:50:140
4374912101,5sleep1437531-21ssh12:05:141
41937532101,3sleep10-21swapper/107:05:131
4110692100,7sleep1411198-21ld11:45:211
4110692100,7sleep1411198-21ld11:45:211
3892102101,6sleep20-21swapper/211:33:232
3883742100,3sleep0222-21plymouthd11:31:000
3739992100,3sleep1222-21plymouthd11:24:271
3670402105,2sleep20-21swapper/211:20:162
3256662100,7sleep0325672-21ssh10:51:280
3027112101,6sleep1302717-21ssh10:38:171
270992100,3sleep00-21swapper/007:21:320
2708172100,4sleep10-21swapper/110:17:121
2400862100,7sleep0240089-21sh09:59:190
2098572100,7sleep1210692-21cut09:40:161
1845652100,7sleep2184571-21ssh09:22:162
1830492101,6sleep1177719-21sendmail-msp09:20:221
1766782100,3sleep20-21swapper/209:17:162
98641291,5sleep197958-21sendmail-msp08:20:181
97700290,1sleep10-21swapper/108:17:281
84837290,1sleep00-21swapper/008:06:290
84148291,5sleep184191-21ntpq08:05:221
52096290,6sleep052136-21ld07:40:240
484368290,3sleep2484374-21ssh12:35:052
481939290,7sleep2481996-21grep12:30:252
459242290,2sleep10-21swapper/112:16:281
452103290,7sleep0452109-21ssh12:13:310
44949291,5sleep245501-21cat07:35:212
43129290,6sleep144947-21kthreadcore07:35:201
413782290,6sleep2413784-21ssh11:50:072
398075291,6sleep1398085-21ssh11:40:111
397057292,3sleep0222-21plymouthd11:38:230
39278291,5sleep139315-21ntpq07:30:231
372834290,1sleep00-21swapper/011:21:140
351349291,5sleep1352254-21cut11:10:171
350546291,4sleep1350602-21/usr/sbin/munin11:10:011
349965290,6sleep2349972-21sshd-session11:08:262
341504291,2sleep1222-21plymouthd11:01:471
332674290,6sleep2327279-21/usr/sbin/munin10:55:272
318250290,1sleep10-21swapper/110:47:401
295159291,6sleep0295165-21ssh10:34:040
277642290,6sleep2277771-21python310:20:272
248586291,4sleep0222-21plymouthd10:05:120
21569290,6sleep122051-21sed07:20:161
201566291,4sleep0201572-21ssh09:35:140
19930291,5sleep119967-21ntpq07:15:231
193614290,1sleep20-21swapper/209:30:062
183647290,2sleep00-21swapper/009:20:310
149394292,4sleep2149178-21sendmail-msp09:00:042
14797291,4sleep0222-21plymouthd07:15:140
135409291,5sleep0135445-21ntpq08:45:230
123250290,3sleep00-21swapper/008:36:000
117458291,4sleep1117480-21apt-get08:35:131
116273291,4sleep1116312-21ntp_states08:30:241
110542290,3sleep00-21swapper/008:27:020
104332290,1sleep20-21swapper/208:24:562
104032290,3sleep00-21swapper/008:21:050
91967281,4sleep092082-21perl08:15:160
85385281,4sleep285418-21apt-get08:10:132
77796281,4sleep072316-21sendmail-msp08:00:240
65797281,4sleep2672-21dbus-daemon07:55:012
474115281,4sleep2474158-21ntpq12:25:242
459206280,3sleep00-21swapper/012:16:220
451561280,5sleep2451565-21ssh12:12:002
450412281,4sleep1450459-21ntpq12:10:231
442752281,4sleep2442802-21ntpq12:05:232
434933282,3sleep2434972-21ntpq12:00:262
434933282,3sleep2434972-21ntpq12:00:262
395177282,4sleep1395353-21strings11:35:191
389632281,4sleep1389638-21ssh11:34:341
380190281,4sleep1380353-21/usr/sbin/munin11:25:291
364880280,3sleep10-21swapper/111:16:191
342574280,3sleep00-21swapper/011:04:390
340431281,4sleep2340476-21ntpq11:00:242
33566280,2sleep1222-21plymouthd07:27:341
326375281,4sleep1326381-21ssh10:53:251
310553280,3sleep10-21swapper/110:43:031
287995281,4sleep1288028-21apt-get10:30:121
286228280,1sleep0222-21plymouthd10:26:100
225013281,3sleep2225019-21ssh09:50:122
214606281,4sleep2214730-21ntpq09:40:202
175479280,5sleep00-21swapper/009:15:250
169799280,5sleep0170049-21latency_hist09:15:000
155238280,1sleep00-21swapper/009:00:330
142679280,3sleep20-21swapper/208:54:232
117154280,2sleep00-21swapper/008:34:440
111046281,3sleep2111079-21apt-get08:30:132
97796270,3sleep2222-21plymouthd08:18:422
66141271,2sleep10-21swapper/107:55:161
66105271,2sleep00-21swapper/007:55:140
65453271,3sleep1222-21plymouthd07:50:351
58464270,4sleep20-21swapper/207:45:232
4931270,4sleep24985-21/usr/sbin/munin07:05:222
483879271,3sleep0222-21plymouthd12:34:240
483445270,4sleep1222-21plymouthd12:33:161
476005270,5sleep10-21swapper/112:29:141
467058270,1sleep2467064-21ssh12:21:072
430990270,4sleep0431934-21kthreadcore12:00:200
430990270,4sleep0431934-21kthreadcore12:00:200
421163270,1sleep00-21swapper/011:54:260
412287271,3sleep2412291-21ssh11:46:432
412287271,3sleep2412291-21ssh11:46:422
357721270,1sleep2357727-21ssh11:13:072
350868270,4sleep0350907-21apt-get11:10:110
33598271,3sleep2222-21plymouthd07:27:592
286896270,3sleep2222-21plymouthd10:27:592
264322271,2sleep20-21swapper/210:15:132
247686271,3sleep0222-21plymouthd10:03:290
224107271,3sleep2222-21plymouthd09:48:112
222614271,4sleep0222653-21ntpq09:45:240
21203271,3sleep221351-21df07:20:122
208284270,1sleep2208290-21ssh09:37:532
20717271,3sleep2222-21plymouthd07:17:572
192448270,1sleep2192450-21ssh09:27:342
191252270,1sleep10-21swapper/109:25:291
170175271,3sleep10-21swapper/109:15:141
148792270,1sleep00-21swapper/008:55:490
142563271,3sleep1222-21plymouthd08:52:531
106049270,4sleep1107496-21grep08:25:191
91484260,2sleep0222-21plymouthd08:14:440
84193261,2sleep284242-21ntpq08:05:242
59253260,1sleep10-21swapper/107:47:591
5839260,2sleep0222-21plymouthd07:08:570
490687260,1sleep00-21swapper/012:36:360
46559260,1sleep00-21swapper/007:39:440
465199260,3sleep0466071-21memory12:20:200
429198260,4sleep1429375-21cut12:00:011
413857261,2sleep1413860-21apt-get11:50:141
405929261,2sleep00-21swapper/011:45:120
405929261,2sleep00-21swapper/011:45:120
40006260,3sleep2222-21plymouthd07:32:512
39861260,1sleep00-21swapper/007:31:060
397987261,2sleep0397769-21appstreamcli11:40:030
345435261,3sleep0347019-21ssh11:05:190
327509260,3sleep0327717-21basename10:55:170
319499261,2sleep20-21swapper/210:50:132
297116261,3sleep2298130-21kthreadcore10:35:172
272204261,3sleep1272363-21ssh10:20:141
261706261,2sleep00-21swapper/010:10:220
254910260,3sleep2222-21plymouthd10:06:392
246048263,1sleep20-21swapper/210:00:262
238769260,3sleep2222-21plymouthd09:55:412
231157260,3sleep1231163-21ssh09:51:151
230983260,3sleep0222-21plymouthd09:50:420
207949260,3sleep1207955-21ssh09:36:591
199636260,4sleep1191958-21kworker/u16:4+nfsiod09:30:421
161710260,2sleep0222-21plymouthd09:06:390
161056261,2sleep1222-21plymouthd09:05:241
149398261,2sleep10-21swapper/109:00:061
143003260,3sleep1143036-21apt-get08:55:141
137590261,2sleep00-21swapper/008:50:150
136238261,2sleep20-21swapper/208:48:212
132408261,3sleep1134214-21cut08:45:201
129799260,1sleep10-21swapper/108:42:231
12214260,3sleep2222-21plymouthd07:13:152
12113260,1sleep00-21swapper/007:11:570
11426260,3sleep111466-21ntpq07:10:211
78456250,2sleep2222-21plymouthd08:01:192
66102250,2sleep2222-21plymouthd07:55:132
442855250,2sleep00-21swapper/012:05:240
391067250,2sleep20-21swapper/211:35:162
33470250,2sleep0222-21plymouthd07:26:210
193638250,2sleep00-21swapper/009:30:130
162286251,2sleep2162323-21apt-get09:10:102
143039251,2sleep20-21swapper/208:55:152
128964250,3sleep0129044-21ntpq08:40:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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