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2026-06-17 - 00:53
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Tue Jun 16, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21361212720,1sleep30-21swapper/310:20:183
1867047992926,1cyclictest0-21swapper/312:15:003
1867047992926,1cyclictest0-21swapper/309:40:003
1867047992623,1cyclictest0-21swapper/311:20:283
1867047992421,1cyclictest0-21swapper/307:15:043
1867047992320,1cyclictest0-21swapper/310:56:123
1867047992320,1cyclictest0-21swapper/310:35:143
23192772220,2sleep2421rcuc/212:16:362
1867047992219,1cyclictest0-21swapper/310:00:033
1867047992219,1cyclictest0-21swapper/310:00:033
186704799212,14cyclictest2133806-21taskset10:19:303
1867047992118,1cyclictest0-21swapper/312:00:053
1867047992118,1cyclictest0-21swapper/311:45:123
1867047992118,1cyclictest0-21swapper/311:45:123
1867047992118,1cyclictest0-21swapper/311:40:193
1867047992118,1cyclictest0-21swapper/310:30:013
1867047992118,1cyclictest0-21swapper/309:50:253
1867047992118,1cyclictest0-21swapper/308:05:003
1867047992117,1cyclictest0-21swapper/311:05:133
186704799211,15cyclictest2038622-21taskset09:17:363
186704799211,14cyclictest2344028-21taskset12:35:013
21108962200,2sleep1222-21plymouthd10:05:011
186704799202,14cyclictest2055712-21taskset09:28:263
1867047992018,1cyclictest0-21swapper/312:20:063
1867047992017,1cyclictest0-21swapper/312:30:173
1867047992017,1cyclictest0-21swapper/311:50:163
186704799201,15cyclictest1965705-21chrt08:25:123
186704799201,14cyclictest1920401-21taskset07:48:153
186704799201,13cyclictest2118404-21taskset10:09:563
186704799199,6cyclictest19333252sleep307:59:193
186704799192,13cyclictest2249403-21taskset11:31:593
186704799192,13cyclictest2249403-21taskset11:31:593
1867047991916,1cyclictest0-21swapper/309:10:183
1867047991916,1cyclictest0-21swapper/308:40:163
1867047991916,1cyclictest0-21swapper/308:20:043
1867047991916,1cyclictest0-21swapper/308:20:043
186704799191,14cyclictest2313037-21chrt12:15:133
186704799191,14cyclictest2257669-21taskset11:38:243
186704799191,14cyclictest2257669-21taskset11:38:243
186704799191,14cyclictest1958302-21taskset08:15:263
186704799182,12cyclictest1946525-21chrt08:10:123
1867047991816,1cyclictest0-21swapper/310:10:183
1867047991815,1cyclictest0-21swapper/309:55:183
1867047991815,1cyclictest0-21swapper/309:45:143
186704799181,14cyclictest2079400-21taskset09:44:423
186704799181,14cyclictest1972090-21taskset08:30:133
186704799181,13cyclictest2335257-21taskset12:27:523
186704799181,13cyclictest2224993-21taskset11:15:233
186704799181,13cyclictest2212292-21taskset11:10:143
186704799181,13cyclictest2188212-21taskset10:54:423
186704799181,13cyclictest2178475-21taskset10:45:243
186704799181,13cyclictest2009848-21taskset08:55:273
186704799181,13cyclictest1925780-21taskset07:50:193
186704799181,13cyclictest1888415-21taskset07:24:343
1867047991714,1cyclictest0-21swapper/311:00:043
1867047991714,1cyclictest0-21swapper/309:30:193
1867047991714,1cyclictest0-21swapper/307:40:183
1867047991714,1cyclictest0-21swapper/307:35:193
186704799171,13cyclictest2303796-21taskset12:06:433
186704799171,13cyclictest2172603-21taskset10:44:243
186704799171,13cyclictest2046990-21taskset09:20:333
186704799171,13cyclictest2016355-21chrt09:00:403
186704799171,13cyclictest1997130-21taskset08:46:413
186704799171,13cyclictest1984238-21taskset08:35:343
186704799171,13cyclictest1895542-21taskset07:30:153
186704799171,12cyclictest2281837-21taskset11:55:043
186704799171,12cyclictest2016960-21taskset09:05:093
186704799171,12cyclictest1997704-21chrt08:50:143
186704799171,12cyclictest1873065-21taskset07:10:393
1867047991710,4cyclictest18946732chrt07:27:393
23445692160,12sleep22345351-21cut12:35:172
22109242167,2sleep2171rcu_preempt11:08:092
1867047991613,1cyclictest0-21swapper/310:30:123
186704799161,12cyclictest2237930-21taskset11:25:173
186704799161,12cyclictest1940106-21taskset08:05:113
22210492151,11sleep12222188-21tr11:15:181
21434532141,10sleep02144745-21tr10:25:170
21249902149,2sleep22124994-21ssh10:11:242
19240182140,2sleep20-21swapper/207:50:202
18962092140,11sleep01897141-21cut07:30:170
21346062130,3sleep02134611-21fschecks_time10:20:150
20853362131,9sleep02085460-21python309:45:240
20373322131,8sleep22037338-21ssh09:15:592
19067562131,9sleep11906800-21ntpq07:35:241
6881120,3low-memory-moni2038492-21frontend09:17:311
22839802121,2sleep10-21swapper/111:55:191
22459582121,8sleep22247692-21kthreadcore11:30:182
22459582121,8sleep22247692-21kthreadcore11:30:172
22032272124,2sleep10-21swapper/111:03:231
20792402121,8sleep0222-21plymouthd09:44:120
20559692121,8sleep22023146-21diskmemload09:29:112
19909492121,4sleep0222-21plymouthd08:44:300
19269222121,7sleep11926947-21munin-plugin-st07:55:001
18827242121,8sleep21883400-21irqrtprio07:20:172
7861110,4gdbus2054911-21fwupdmgr09:26:120
23274352110,7sleep22327441-21ssh12:22:412
22482712110,8sleep12248309-21ntpq11:30:211
22482712110,8sleep12248309-21ntpq11:30:211
21649932111,2sleep12117450-21kworker/u16:1-rpciod10:39:581
20697322110,8sleep02069789-21grep09:35:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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