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2026-05-20 - 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 May 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4109435992320,1cyclictest0-21swapper/307:55:003
410943599227,5cyclictest126461-21taskset09:44:563
4109435992219,1cyclictest0-21swapper/312:20:253
4109435992219,1cyclictest0-21swapper/310:45:143
4109435992219,1cyclictest0-21swapper/309:30:173
4109435992119,1cyclictest0-21swapper/311:40:013
4109435992118,1cyclictest0-21swapper/310:40:223
4109435992118,1cyclictest0-21swapper/308:50:153
41835342200,9sleep244-21ksoftirqd/208:05:162
4109435992018,1cyclictest0-21swapper/312:30:243
4109435992017,1cyclictest0-21swapper/310:05:213
4109435992017,1cyclictest0-21swapper/309:10:173
410943599201,15cyclictest204329-21taskset10:32:193
410943599201,14cyclictest14049-21chrt08:25:143
410943599201,14cyclictest117710-21taskset09:37:383
410943599199,7cyclictest2844552sleep311:25:123
410943599193,5cyclictest4182217-21taskset08:05:013
4109435991917,1cyclictest0-21swapper/312:00:143
4109435991916,1cyclictest0-21swapper/309:28:033
4109435991916,1cyclictest0-21swapper/307:35:213
4109435991913,3cyclictest4130741-21sleep07:25:003
410943599191,14cyclictest360614-21taskset12:10:233
410943599191,14cyclictest348839-21taskset12:05:163
410943599191,14cyclictest267990-21taskset11:14:173
410943599191,14cyclictest213111-21taskset10:39:573
410943599191,13cyclictest188702-21taskset10:22:413
1782322190,2sleep20-21swapper/210:15:182
410943599181,9cyclictest4175525-21taskset07:59:563
4109435991816,1cyclictest0-21swapper/312:25:173
4109435991815,1cyclictest0-21swapper/312:15:163
4109435991815,1cyclictest0-21swapper/311:00:213
4109435991815,1cyclictest0-21swapper/309:55:233
4109435991815,1cyclictest0-21swapper/308:35:213
4109435991815,1cyclictest0-21swapper/308:20:053
4109435991815,1cyclictest0-21swapper/308:10:203
4109435991815,1cyclictest0-21swapper/307:40:153
410943599181,14cyclictest151282-21chrt10:00:163
410943599181,13cyclictest93967-21taskset09:22:073
410943599181,13cyclictest85700-21taskset09:16:103
410943599181,13cyclictest4162421-21taskset07:45:493
410943599181,13cyclictest4143354-21taskset07:32:463
410943599181,13cyclictest39604-21taskset08:45:063
410943599181,13cyclictest33220-21chrt08:40:093
410943599181,13cyclictest308483-21taskset11:40:153
410943599181,13cyclictest293755-21taskset11:30:163
410943599181,13cyclictest275830-21taskset11:18:583
410943599181,13cyclictest243550-21taskset10:57:023
410943599181,13cyclictest243550-21taskset10:57:013
410943599181,13cyclictest229236-21taskset10:50:113
410943599181,13cyclictest172369-21taskset10:11:153
410943599181,13cyclictest133801-21taskset09:48:333
410943599178,6cyclictest584382sleep308:59:423
4109435991714,1cyclictest0-21swapper/311:50:163
4109435991714,1cyclictest0-21swapper/310:17:003
4109435991714,1cyclictest0-21swapper/307:15:203
410943599171,13cyclictest71001-21taskset09:07:043
410943599171,13cyclictest401476-21taskset12:37:483
410943599171,13cyclictest401476-21taskset12:37:483
410943599171,13cyclictest276531-21taskset11:20:103
410943599171,13cyclictest26286-21taskset08:31:593
410943599171,13cyclictest260173-21taskset11:09:283
410943599171,13cyclictest260173-21taskset11:09:273
410943599171,12cyclictest64506-21chrt09:00:383
410943599171,12cyclictest4175816-21taskset08:00:093
410943599171,12cyclictest4136099-21taskset07:25:213
410943599171,12cyclictest4109331-21sleep07:14:553
410943599171,12cyclictest315950-21taskset11:45:043
410943599171,12cyclictest141201-21taskset09:52:143
410943599171,12cyclictest1157-21taskset08:15:033
2770572171,11sleep1276542-21/usr/sbin/munin11:20:181
19216021713,1sleep30-21swapper/310:25:183
410943599160,13cyclictest338050-21chrt11:56:543
1504442151,5sleep2150449-21apt-get10:00:122
1242262151,10sleep1124269-21ntpq09:40:231
1223872150,5sleep21553714-21kworker/2:0+events09:40:192
41886232141,3sleep00-21swapper/008:10:120
41745942131,9sleep24174634-21ntpq07:55:232
3534852131,4sleep1353493-21ssh12:05:561
3530112131,9sleep0353284-21awk12:05:260
3471182131,9sleep2347152-21munin-run12:05:012
3135472131,8sleep0313655-21/usr/sbin/munin11:40:250
861442120,9sleep286148-21ssh09:17:252
2352422120,9sleep1235248-21ssh10:50:541
1017942128,2sleep057423-21kworker/u16:0+nfsiod09:27:060
41920012110,7sleep14193647-21cat08:10:211
41883472111,7sleep04188379-21idleruntime-cro08:10:000
41758202112,5sleep14175855-21apt-get08:00:111
41703592115,3sleep14171318-21grep07:55:181
41438382110,8sleep04143978-21grep07:35:120
41435292110,7sleep04143668-21latency_hist07:35:010
41313792111,7sleep24131468-21irqcore07:25:162
41236672110,3sleep04123884-21users07:15:280
3862402111,2sleep20-21swapper/212:29:142
2919862113,4sleep2222-21plymouthd11:30:002
2607492110,8sleep0260841-21grep11:10:150
1742732111,7sleep1174385-21perl10:15:141
1487952111,7sleep2148801-21ssh09:56:312
787622100,3sleep178770-21ssh09:13:561
704672100,7sleep165118-21/usr/sbin/munin09:05:261
447882101,6sleep144826-21ntpq08:45:221
41326412100,7sleep04134370-21tr07:25:180
41157452101,6sleep04115775-21munin-run07:15:000
41032502101,5sleep30-21swapper/307:05:143
387322100,7sleep038976-21users08:40:270
3083122100,7sleep2308479-21sed11:40:162
3005262100,8sleep0300691-21cat11:35:150
2699962100,3sleep2270916-21kthreadcore11:15:172
1971692100,2sleep2222-21plymouthd10:29:182
129122100,7sleep112997-21mailstats08:20:241
1014262100,8sleep1101432-21ssh09:26:071
4188717291,5sleep24188818-21/usr/sbin/munin08:10:142
4106056290,6sleep14107940-21kthreadcore07:05:191
385530290,6sleep1385536-21ssh12:27:211
378597291,4sleep1378742-21latency_hist12:25:001
329105291,4sleep2329146-21ntpq11:50:222
329055292,3sleep1329098-21ntpq11:50:211
32786290,2sleep0222-21plymouthd08:38:080
324288291,5sleep0325101-21sed11:50:150
291322290,2sleep1171rcu_preempt11:28:111
282569291,5sleep2282575-21ssh11:20:462
244982291,4sleep2245015-21apt-get11:00:142
243536290,6sleep171259-21diskmemload10:57:001
243536290,6sleep171259-21diskmemload10:57:001
218620291,5sleep2218712-21ntpq10:40:212
204064290,7sleep2204070-21ssh10:31:392
147671290,3sleep0147755-21ssh09:55:200
133988290,2sleep0222-21plymouthd09:49:030
71507280,2sleep271513-21ssh09:10:042
45521280,2sleep2222-21plymouthd08:47:232
4150270281,4sleep24150303-21apt-get07:40:122
4115439280,2sleep2222-21plymouthd07:11:052
4114824281,4sleep14114864-21ntpq07:10:241
4109009280,1sleep00-21swapper/007:06:220
386384281,5sleep0386389-21sh12:29:370
378469280,2sleep2222-21plymouthd12:24:372
369029280,2sleep2222-21plymouthd12:15:272
347924280,5sleep2348837-21cut12:05:162
339564281,4sleep0339665-21cut12:00:130
33225281,3sleep133258-21apt-get08:40:121
32788280,1sleep20-21swapper/208:38:092
315399280,2sleep1315405-21ssh11:44:191
298773280,5sleep1298781-21ssh11:32:091
276539281,3sleep0276574-21apt-get11:20:130
268105280,2sleep10-21swapper/111:14:361
243239280,2sleep2222-21plymouthd10:56:132
243239280,2sleep2222-21plymouthd10:56:122
213488280,4sleep10-21swapper/110:40:121
166623281,4sleep0167251-21irqrtprio10:10:160
165761280,5sleep2165767-21ssh10:09:462
158774280,5sleep0159285-21irqrtprio10:05:150
14012280,3sleep114045-21apt-get08:25:131
140105281,4sleep2140226-21python309:50:262
133188280,1sleep20-21swapper/209:46:522
118452282,3sleep271655-21kworker/u16:4+xprtiod09:39:392
111029281,4sleep1111053-21apt-get09:35:131
109415280,6sleep00-21swapper/009:31:320
95352270,3sleep2222-21plymouthd09:25:112
92771271,3sleep192811-21ntpq09:20:211
92726270,5sleep092770-21ld09:20:210
86974273,2sleep086979-21sh09:19:360
86137270,4sleep186143-21ssh09:17:241
77556271,3sleep0222-21plymouthd09:10:340
7621270,3sleep0222-21plymouthd08:20:110
7188270,5sleep0222-21plymouthd08:18:100
58254270,3sleep1222-21plymouthd08:57:211
51794270,3sleep1222-21plymouthd08:51:431
46190270,4sleep246386-21sed08:50:152
4181631270,3sleep0222-21plymouthd08:00:460
4168178271,3sleep20-21swapper/207:50:232
4159051270,4sleep04160895-21tr07:45:190
4156714271,2sleep20-21swapper/207:45:132
4149271270,1sleep10-21swapper/107:35:261
4143332270,1sleep20-21swapper/207:32:302
4124558271,3sleep14124352-21appstreamcli07:20:021
4109178270,3sleep2222-21plymouthd07:08:332
392089270,3sleep0392134-21ntpq12:30:200
39075270,1sleep20-21swapper/208:41:372
387071271,4sleep2387280-21basename12:30:142
371019273,2sleep00-21swapper/012:20:100
361807270,4sleep1361813-21ssh12:12:131
360571270,4sleep2360612-21ntpq12:10:222
345070270,5sleep10-21swapper/112:00:261
338815273,2sleep2431ktimers/211:58:592
331695270,4sleep1331652-21/usr/sbin/munin11:55:131
300251271,2sleep10-21swapper/111:35:121
28192273,2sleep14109427-21cyclictest08:35:161
273983270,4sleep0274026-21ntpq11:15:230
268558271,2sleep1222-21plymouthd11:15:081
259149270,1sleep20-21swapper/211:06:392
259149270,1sleep20-21swapper/211:06:392
25586270,3sleep125629-21ntpq08:30:221
252857270,3sleep0252892-21apt-get11:05:120
252857270,3sleep0252892-21apt-get11:05:120
247579271,4sleep1222-21plymouthd11:00:201
244914270,5sleep0244685-21sendmail-msp11:00:030
242999271,4sleep0243006-21sh10:55:300
242999271,4sleep0243006-21sh10:55:300
229261271,3sleep0229345-21cpuspeed_turbos10:50:130
228493272,2sleep2228499-21ssh10:49:002
228242270,2sleep1222-21plymouthd10:48:151
211555270,4sleep0211560-21sh10:35:390
204802270,4sleep1204808-21ssh10:33:381
202993271,4sleep0203040-21collect210:30:200
196781270,1sleep10-21swapper/110:28:141
181929270,3sleep1181936-21ssh10:20:071
168243270,4sleep2169905-21grep10:10:192
167252271,3sleep1222-21plymouthd10:10:171
164283270,4sleep1164289-21ssh10:05:561
157115271,3sleep1157121-21ssh10:02:431
143936273,2sleep10-21swapper/109:55:171
140663270,1sleep00-21swapper/009:50:430
134205271,4sleep10-21swapper/109:49:361
1156270,3sleep2902-21appstreamcli08:15:032
103188271,3sleep1103222-21apt-get09:30:121
87450260,2sleep20-21swapper/209:20:102
7609260,4sleep20-21swapper/208:20:052
71230260,3sleep271268-21awk09:10:012
71182260,1sleep00-21swapper/009:09:220
64819260,1sleep00-21swapper/009:04:410
59153260,3sleep259248-21ps09:00:182
52325260,3sleep252357-21apt-get08:55:132
4182268261,2sleep10-21swapper/108:05:121
4176315260,4sleep24177235-21kernelversion08:00:172
4169415260,3sleep04169437-21apt-get07:55:130
4168841260,3sleep0222-21plymouthd07:51:160
4156261260,1sleep10-21swapper/107:43:081
4150259260,2sleep0222-21plymouthd07:40:070
4143787260,3sleep2222-21plymouthd07:35:022
4137361260,3sleep14137100-21apt-get07:30:041
4129907261,2sleep00-21swapper/007:20:250
4124573261,2sleep24124608-21apt-get07:20:112
4123925260,3sleep2222-21plymouthd07:15:552
4118556261,2sleep10-21swapper/107:15:171
39648261,2sleep00-21swapper/008:45:120
394742260,3sleep2394775-21apt-get12:35:122
394742260,3sleep2394775-21apt-get12:35:112
369763260,1sleep10-21swapper/112:17:341
361484260,1sleep00-21swapper/012:11:160
331664260,2sleep00-21swapper/011:55:120
316982260,3sleep2317879-21kthreadcore11:45:162
316420260,3sleep1316975-21ps11:45:151
306838260,3sleep2222-21plymouthd11:37:382
292268260,3sleep2222-21plymouthd11:30:042
266910260,3sleep2222-21plymouthd11:11:282
26392260,1sleep00-21swapper/008:33:180
258002261,3sleep1258107-21ntpq11:05:211
258002261,3sleep1258107-21ntpq11:05:211
221337260,2sleep00-21swapper/010:45:120
213469261,3sleep0222-21plymouthd10:40:110
211930260,1sleep10-21swapper/110:36:441
19991260,1sleep20-21swapper/208:28:262
189893261,2sleep0189928-21apt-get10:25:120
188310260,3sleep2222-21plymouthd10:21:322
187247260,3sleep0187290-21ntpq10:20:220
181579260,1sleep00-21swapper/010:19:540
14205260,3sleep0222-21plymouthd08:25:170
135121261,2sleep10-21swapper/109:50:171
119926260,4sleep0120741-21cat09:40:170
117425260,1sleep00-21swapper/009:36:480
109558260,3sleep2222-21plymouthd09:31:532
6649250,2sleep1222-21plymouthd08:15:271
63950250,2sleep1222-21plymouthd09:00:251
54062250,3sleep055782-21kthreadcore08:55:180
51017250,3sleep051108-21ntpq08:50:210
4168051250,2sleep10-21swapper/107:50:221
4162424250,2sleep10-21swapper/107:45:521
4136747250,3sleep10-21swapper/107:25:511
401511250,2sleep0222-21plymouthd12:37:540
401511250,2sleep0222-21plymouthd12:37:540
399987251,2sleep1400033-21ssh12:35:231
399987251,2sleep1400033-21ssh12:35:221
386781250,2sleep1222-21plymouthd12:30:051
363130250,3sleep00-21swapper/012:15:060
321298250,2sleep0222-21plymouthd11:45:220
292497250,2sleep0222-21plymouthd11:30:150
284407250,2sleep0222-21plymouthd11:25:050
26188250,2sleep2222-21plymouthd08:30:432
235459250,2sleep2222-21plymouthd10:51:272
211776250,2sleep2222-21plymouthd10:36:162
156967250,2sleep0222-21plymouthd10:02:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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