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2026-07-29 - 22:17
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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 Jul 29, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24194421220,2sleep00-21swapper/011:08:380
396322850,1sleep2421rcuc/208:55:212
3266702730,1sleep0221rcuc/012:00:280
4091134992825,1cyclictest0-21swapper/311:10:153
4091134992522,1cyclictest0-21swapper/308:55:263
4091134992522,1cyclictest0-21swapper/308:10:213
4091134992320,1cyclictest0-21swapper/311:20:143
4091134992320,1cyclictest0-21swapper/310:40:253
4091134992320,1cyclictest0-21swapper/310:20:293
4091134992320,1cyclictest0-21swapper/309:40:223
4091134992320,1cyclictest0-21swapper/309:25:013
4091134992320,1cyclictest0-21swapper/308:40:283
4091134992320,1cyclictest0-21swapper/308:10:003
409113499231,15cyclictest116414-21taskset09:49:553
4091134992219,1cyclictest0-21swapper/312:00:213
4091134992219,1cyclictest0-21swapper/309:29:593
4091134992218,1cyclictest0-21swapper/310:05:253
4091134992118,1cyclictest0-21swapper/312:20:013
4091134992118,1cyclictest0-21swapper/310:00:323
4091134992118,1cyclictest0-21swapper/308:35:003
4091134992118,1cyclictest0-21swapper/307:20:243
409113499211,14cyclictest211189-21taskset10:50:013
1780222217,7sleep0178027-21diskmemload10:26:150
4091134992018,1cyclictest0-21swapper/311:20:013
4091134992017,1cyclictest0-21swapper/311:00:163
4091134992017,1cyclictest0-21swapper/309:10:163
4091134992017,1cyclictest0-21swapper/307:40:203
409113499201,15cyclictest4131480-21taskset07:37:493
409113499201,15cyclictest4106060-21taskset07:20:013
4091134991917,1cyclictest0-21swapper/312:20:143
4091134991916,1cyclictest0-21swapper/311:40:313
4091134991916,1cyclictest0-21swapper/311:30:003
4091134991916,1cyclictest0-21swapper/309:40:003
4091134991916,1cyclictest0-21swapper/309:30:243
4091134991916,1cyclictest0-21swapper/308:00:043
4091134991916,1cyclictest0-21swapper/307:55:013
409113499191,14cyclictest171873-21chrt10:25:123
409113499191,13cyclictest368374-21taskset12:30:023
409113499182,13cyclictest225482-21taskset10:56:483
4091134991816,0cyclictest0-21swapper/308:50:273
4091134991815,1cyclictest0-21swapper/312:35:253
4091134991815,1cyclictest0-21swapper/310:46:213
4091134991815,1cyclictest0-21swapper/309:15:123
4091134991815,1cyclictest0-21swapper/309:05:133
4091134991815,1cyclictest0-21swapper/307:25:173
409113499181,13cyclictest4096576-21taskset07:10:243
409113499181,13cyclictest342384-21taskset12:10:243
409113499181,13cyclictest305652-21taskset11:50:113
409113499181,13cyclictest193522-21taskset10:35:473
409113499181,13cyclictest1874-21taskset08:27:573
409113499181,13cyclictest162028-21taskset10:15:453
409113499181,13cyclictest154509-21taskset10:11:333
409113499181,13cyclictest14699-21taskset08:37:193
409113499181,13cyclictest130493-21taskset09:55:363
409113499181,13cyclictest116720-21taskset09:50:043
409113499180,16cyclictest4150914-21turbostat07:59:553
409113499180,14cyclictest180544-21taskset10:30:173
409113499177,7cyclictest3354432sleep312:06:333
4091134991715,1cyclictest0-21swapper/309:00:033
4091134991714,1cyclictest0-21swapper/311:55:163
4091134991714,1cyclictest0-21swapper/311:05:213
409113499171,13cyclictest287861-21taskset11:35:373
409113499171,12cyclictest4183081-21sleep08:20:013
409113499171,12cyclictest4144159-21taskset07:45:313
409113499171,12cyclictest4119125-21taskset07:30:043
409113499171,12cyclictest297716-21taskset11:45:113
409113499171,12cyclictest274035-21taskset11:30:063
409113499171,12cyclictest274035-21taskset11:30:063
4091134991613,1cyclictest0-21swapper/308:45:183
409113499161,12cyclictest4183320-21taskset08:20:023
409113499161,12cyclictest368562-21taskset12:30:133
3450752151,10sleep0345196-21/usr/sbin/munin12:15:150
1692622151,4sleep2169303-21ntpq10:20:222
7495821410,2sleep133961-21kworker/u16:2-events_unbound09:20:281
40909792141,9sleep04091049-21907:10:010
40909082140,2sleep30-21swapper/307:09:073
71522130,10sleep27425-21grep08:30:212
1927942130,4sleep2192840-21ntpq10:35:232
1324102131,8sleep1132119-21sendmail-msp10:00:121
1064052130,10sleep2106452-21ntp_states09:40:262
778182120,2sleep10-21swapper/109:25:161
41445062121,8sleep24144509-21cron07:50:002
3587272122,4sleep1249-21jbd2/sda2-812:20:301
151922121,2sleep20-21swapper/208:40:072
87432110,3sleep08480-21apt-get08:35:040
852452111,6sleep185251-21ssh09:30:141
530892111,2sleep10-21swapper/109:06:361
41769592112,6sleep14176954-21apt-get08:15:131
41692162110,8sleep14169310-21ntp_kernel_err08:05:231
41115472110,8sleep14111583-21ntpq07:20:251
3031142112,5sleep1303151-21ntpq11:45:261
2116752111,6sleep1212093-21cut10:50:161
1880172111,7sleep1188874-21irqrtprio10:35:181
1074182110,1sleep00-21swapper/009:41:470
681272100,8sleep268135-21ssh09:17:192
607502105,3sleep2431ktimers/209:13:362
437352101,5sleep245268-21grep09:00:202
41511992102,4sleep2222-21plymouthd07:55:142
41435422100,7sleep1222-21plymouthd07:45:231
41191702101,6sleep14119173-21apt-get07:30:141
41003232100,7sleep04101254-21irqstats07:15:180
3777602100,7sleep1378951-21kthreadcore12:35:171
3422902101,5sleep1342329-21ntpq12:10:241
3240762100,3sleep2325086-21tr12:00:222
2951642106,2sleep134-21ksoftirqd/111:40:241
2692992100,7sleep1271004-21cut11:25:201
2584072100,1sleep20-21swapper/211:20:172
18622100,1sleep10-21swapper/108:27:481
1708342100,7sleep0170836-21ssh10:23:090
1326152101,6sleep0132649-21cut10:00:150
99349290,2sleep0222-21plymouthd09:36:300
86421290,6sleep287289-21kthreadcore09:30:192
7507290,7sleep07549-21ntpq08:30:240
4089989291,4sleep24090046-21sed07:05:222
366823290,3sleep2366829-21ssh12:26:082
33229293,3sleep0151ktimers/008:50:240
317800290,5sleep2318569-21wc11:55:212
316081290,6sleep1317798-21kthreadcore11:55:191
27109290,6sleep027359-21unixbench_singl08:45:260
271005292,4sleep2222-21plymouthd11:25:212
228435291,5sleep2226684-21sendmail-msp11:00:202
18284290,2sleep014970-21sendmail-msp08:40:220
153555290,1sleep10-21swapper/110:10:231
132839291,4sleep2132119-21sendmail-msp10:00:172
131962290,3sleep1131968-21ssh09:59:401
100285294,3sleep10-21swapper/109:38:591
55910281,4sleep057567-21cut09:10:210
47636281,4sleep247766-21sed09:05:172
4189351280,1sleep20-21swapper/208:22:352
4176921281,3sleep0222-21plymouthd08:15:110
4176434280,1sleep00-21swapper/008:12:150
4170540281,4sleep24170278-21apt-get08:10:042
4149950280,1sleep10-21swapper/107:50:231
4147590280,5sleep24149425-21kthreadcore07:50:202
4144341281,3sleep0222-21plymouthd07:47:540
4131945281,4sleep14131714-21sendmail-msp07:40:121
4130739280,5sleep14130781-21ntpq07:35:231
4105790280,1sleep10-21swapper/107:17:431
4096484281,4sleep14096524-21ntpq07:10:231
4084925281,3sleep10-21swapper/107:05:121
40182280,2sleep0222-21plymouthd08:55:570
374999280,1sleep00-21swapper/012:32:120
361736280,5sleep1362664-21kthreadcore12:25:181
360343280,5sleep0360349-21ssh12:24:540
359046282,3sleep2222-21plymouthd12:21:232
337223281,4sleep2337267-21ssh12:10:162
336170281,4sleep1336174-21ssh12:08:351
334394281,4sleep0334431-21ntp_kernel_pll_12:05:210
328760281,4sleep1328766-21ssh12:04:461
310896281,4sleep1310941-21ntpq11:50:221
306602281,5sleep0307445-21kthreadcore11:50:170
304627280,2sleep2222-21plymouthd11:48:122
295295280,5sleep00-21swapper/011:40:270
288695280,2sleep1222-21plymouthd11:37:521
281405280,2sleep1281407-21ssh11:34:271
281405280,2sleep1281407-21ssh11:34:261
280772281,5sleep20-21swapper/211:32:442
280772281,5sleep20-21swapper/211:32:432
27419280,5sleep1222-21plymouthd08:45:431
256687280,5sleep0222-21plymouthd11:16:370
226197282,3sleep0222-21plymouthd10:58:490
225108280,2sleep2222-21plymouthd10:55:472
217344280,2sleep2217350-21ssh10:51:052
203783281,4sleep1203921-21grep10:45:161
201696280,1sleep2201702-21ssh10:41:072
185045281,4sleep1185091-21ntpq10:30:241
181291280,5sleep0182877-21cut10:30:190
180150280,5sleep2180541-21irqcore10:30:172
156114280,5sleep20-21swapper/210:15:142
148660280,5sleep20-21swapper/210:10:162
147377280,1sleep20-21swapper/210:08:312
146347281,4sleep169469-21kworker/u16:1+nfsiod10:05:391
116815281,4sleep00-21swapper/009:50:130
10420281,4sleep212171-21kthreadcore08:35:192
100031280,1sleep20-21swapper/209:38:202
91144270,1sleep00-21swapper/009:30:330
83386270,4sleep283392-21ssh09:25:532
77362271,3sleep077397-21apt-get09:25:110
76682270,1sleep00-21swapper/009:24:000
75522271,3sleep2222-21plymouthd09:20:492
63258270,4sleep064584-21ssh09:15:170
60184271,3sleep160190-21ssh09:12:021
46159271,3sleep1222-21plymouthd09:00:281
4183369271,3sleep0222-21plymouthd08:20:120
4176418270,1sleep10-21swapper/108:12:041
4157641271,4sleep00-21swapper/008:00:120
4157625270,4sleep2249-21jbd2/sda2-808:00:022
4157248270,1sleep10-21swapper/107:58:421
4151237271,3sleep0222-21plymouthd07:55:160
4131981271,3sleep2222-21plymouthd07:40:142
4118847271,3sleep0222-21plymouthd07:29:460
4112758271,3sleep14112788-21apt-get07:25:131
4112315270,4sleep2222-21plymouthd07:22:542
4112303270,1sleep00-21swapper/007:22:430
4096832270,4sleep24097068-21users07:10:282
4091759271,3sleep04092690-21irqstats07:10:180
383647274,1sleep2421rcuc/212:39:312
381426271,3sleep0381572-21ntpq12:35:200
350277270,1sleep20-21swapper/212:15:252
329132271,3sleep2329169-21apt-get12:05:122
304486270,4sleep0222-21plymouthd11:47:490
297108270,5sleep2297114-21ssh11:44:102
257400270,4sleep1226317-21kworker/u16:2+rpciod11:18:311
248794270,1sleep1222-21plymouthd11:11:381
248647270,2sleep0171rcu_preempt11:10:330
242326270,4sleep1242332-21ssh11:09:451
235872272,2sleep253368-21diskmemload11:05:172
218192271,3sleep0218198-21ssh10:53:250
21668271,2sleep20-21swapper/208:45:132
209465270,1sleep00-21swapper/010:45:540
201632270,1sleep00-21swapper/010:40:570
195418271,4sleep1195141-21sendmail-msp10:40:101
1781270,3sleep2222-21plymouthd08:26:452
171832271,2sleep20-21swapper/210:25:122
163861270,5sleep1163623-21sendmail-msp10:20:051
156072271,3sleep1156113-21ssh10:15:131
154594270,1sleep00-21swapper/010:11:460
15238271,2sleep10-21swapper/108:40:141
127518270,4sleep0128889-21cut09:55:190
124071270,4sleep1124077-21ssh09:54:311
1230271,3sleep01354-21python308:25:260
115135271,3sleep0222-21plymouthd09:46:250
100996271,3sleep1101020-21apt-get09:40:131
53005260,3sleep0222-21plymouthd09:05:310
4189518260,1sleep10-21swapper/108:24:421
4182921260,1sleep20-21swapper/208:18:272
4170102260,3sleep0222-21plymouthd08:08:070
4169565260,3sleep24169684-21sort08:05:282
4163717260,1sleep10-21swapper/108:03:421
4150561261,2sleep0222-21plymouthd07:50:460
4137801260,1sleep00-21swapper/007:40:350
4131290260,3sleep0222-21plymouthd07:35:390
4125504261,2sleep24125537-21apt-get07:35:122
4125213260,2sleep0222-21plymouthd07:34:460
4124984260,3sleep2222-21plymouthd07:31:522
4118580261,2sleep2222-21plymouthd07:26:182
4105715260,3sleep2222-21plymouthd07:16:482
40784261,3sleep086188-21systemd-journal09:00:100
371129261,2sleep20-21swapper/212:30:222
36854261,3sleep138674-21cut08:55:171
367154261,2sleep00-21swapper/012:27:060
344865261,2sleep10-21swapper/112:15:121
343816260,3sleep0222-21plymouthd12:13:040
33985260,3sleep2222-21plymouthd08:53:062
314899260,3sleep0316080-21kthreadcore11:55:180
288071260,1sleep00-21swapper/011:36:110
279386260,3sleep0222-21plymouthd11:30:260
279386260,3sleep0222-21plymouthd11:30:250
273198260,1sleep00-21swapper/011:28:320
264733260,3sleep0264739-21ssh11:21:480
258827260,3sleep1222-21plymouthd11:20:201
248716261,2sleep2222-21plymouthd11:10:462
233424261,3sleep10-21swapper/111:01:511
232676261,2sleep0232902-21grep11:00:310
2301260,1sleep10-21swapper/108:30:081
225128260,3sleep1225130-21ssh10:55:491
210090260,3sleep2210096-21ssh10:47:462
187535260,2sleep00-21swapper/010:35:120
179154262,2sleep14091129-21cyclictest10:29:241
161328263,1sleep0151ktimers/010:15:240
14655260,1sleep10-21swapper/108:36:451
140403261,2sleep0140406-21apt-get10:05:140
131574260,4sleep2131580-21ssh09:58:412
122891260,1sleep20-21swapper/209:51:162
115122260,1sleep20-21swapper/209:46:222
114875260,3sleep1222-21plymouthd09:45:411
61496250,2sleep1222-21plymouthd09:15:021
369970251,2sleep10-21swapper/112:30:211
312093250,2sleep20-21swapper/211:52:082
284301250,2sleep244-21ksoftirqd/211:35:212
28020250,2sleep10-21swapper/108:50:131
250280250,2sleep2222-21plymouthd11:15:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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