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2026-08-09 - 00:27
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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
Characteristics of the 376 highest latencies:
System rackeslot2.osadl.org (updated Sat Aug 08, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
200937121010,2sleep30-21swapper/312:01:153
19211692740,1sleep01921167-21ssh11:04:200
15997332530,3sleep20-21swapper/207:05:332
18590972480,2sleep30-21swapper/310:20:383
1602994992822,2cyclictest69250irq/121-eno107:20:011
1602993992817,6cyclictest1825739-21latency_hist10:00:030
1602993992514,6cyclictest759-1atopacctd12:30:370
19064092230,2sleep20-21swapper/210:55:002
1602993992320,2cyclictest1641669-21latency_hist07:40:000
1602994992213,3cyclictest1820638-21kthreadcore09:55:371
16952692210,2sleep20-21swapper/208:20:382
1602994992116,3cyclictest688-21in:imuxsock09:50:021
1602993992118,2cyclictest1958919-21grep11:30:020
1602993992118,1cyclictest0-21swapper/011:20:020
1602993992113,4cyclictest1034-21runrttasks10:31:080
1602993992113,4cyclictest1034-21runrttasks10:31:080
3240591201,4phc2sys0-21swapper/310:15:193
1602995992017,1cyclictest0-21swapper/212:14:432
1602995992017,1cyclictest0-21swapper/209:25:012
1602994992017,2cyclictest1899119-21sh10:50:011
1602994992016,2cyclictest0-21swapper/109:25:021
1602994992013,2cyclictest0-21swapper/110:40:011
160299399208,4cyclictest1300-21mta-sts-daemon09:26:290
1602993992017,2cyclictest664-21dbus-daemon09:40:010
1602993992017,2cyclictest1609459-21wc07:15:020
1602993992016,2cyclictest1862423-21grep10:25:030
1602993992016,2cyclictest0-21swapper/012:15:020
1602993992011,7cyclictest0-21swapper/012:25:020
1602993992010,6cyclictest2056329-21cstates12:35:340
3240591190,2phc2sys0-21swapper/311:06:453
3240591190,2phc2sys0-21swapper/310:25:373
1602995991916,1cyclictest0-21swapper/211:45:012
1602995991916,1cyclictest0-21swapper/208:15:012
1602994991916,2cyclictest1654074-21cron07:50:001
160299399199,5cyclictest0-21swapper/011:55:020
1602993991916,2cyclictest1602992-21cyclictest09:30:390
1602993991916,2cyclictest1-21systemd08:50:020
1602993991916,2cyclictest0-21swapper/009:45:010
1602993991915,2cyclictest1751956-21sh09:10:020
1602993991913,5cyclictest1973937-21/usr/sbin/munin11:40:370
1602993991910,5cyclictest1307-21mta-sts-daemon10:45:020
1157598190,2rtkit-daemon1309-21mta-sts-daemon08:05:390
3240591180,4phc2sys0-21swapper/310:30:263
3240591180,4phc2sys0-21swapper/310:30:263
3240591180,3phc2sys0-21swapper/310:11:183
3240591180,2phc2sys0-21swapper/309:11:343
3240591180,1phc2sys0-21swapper/309:53:353
1602995991815,1cyclictest0-21swapper/211:05:012
1602995991815,1cyclictest0-21swapper/208:35:012
1602995991815,1cyclictest0-21swapper/207:40:022
1602995991815,1cyclictest0-21swapper/207:35:012
1602995991810,6cyclictest19723522chrt11:36:212
160299499187,4cyclictest0-21swapper/110:50:341
1602994991815,2cyclictest2040579-21apt-config12:25:011
1602994991815,2cyclictest1936360-21latency_hist11:15:011
1602994991815,2cyclictest1727218-21apt-key08:50:011
1602994991815,2cyclictest0-21swapper/108:15:011
1602994991814,3cyclictest1864057-21kthreadcore10:25:381
1602994991810,3cyclictest0-21swapper/111:05:011
160299399189,5cyclictest0-21swapper/012:00:330
160299399189,2cyclictest0-21swapper/010:55:380
160299399187,6cyclictest0-21swapper/011:10:380
1602993991815,2cyclictest1654336-21cut07:50:020
1157598180,2rtkit-daemon351ktimers/107:33:001
3240591179,3phc2sys0-21swapper/307:50:013
160299599171,6cyclictest0-21swapper/209:30:162
1602995991714,1cyclictest0-21swapper/212:25:012
1602995991714,1cyclictest0-21swapper/210:20:412
1602995991713,2cyclictest0-21swapper/208:50:422
160299499176,4cyclictest0-21swapper/110:20:361
160299499173,3cyclictest69250irq/121-eno110:15:191
1602994991715,1cyclictest0-21swapper/112:15:011
1602994991714,2cyclictest1928912-21latency_hist11:10:011
1602994991714,2cyclictest1826835-21cut10:00:341
1602994991714,2cyclictest1801423-21processes09:40:421
1602994991714,2cyclictest0-21swapper/112:35:011
1602994991713,3cyclictest1954770-21kthreadcore11:25:381
160299399179,7cyclictest1645071-21kthreadcore07:40:400
160299399177,5cyclictest0-21swapper/012:25:390
1602993991714,2cyclictest1830308-21kthreadcore10:00:370
1602993991714,2cyclictest1818059-21/usr/sbin/munin09:55:010
1602993991714,2cyclictest1309-21mta-sts-daemon10:55:030
1602993991714,2cyclictest1-21systemd12:10:010
1602993991714,2cyclictest0-21swapper/009:15:010
1602993991712,4cyclictest1300-21mta-sts-daemon11:36:400
1602993991710,6cyclictest0-21swapper/010:05:450
3240591161,2phc2sys0-21swapper/310:55:393
3240591160,3phc2sys0-21swapper/310:54:503
3240591160,3phc2sys0-21swapper/310:49:303
3240591160,2phc2sys0-21swapper/309:17:433
160299599161,7cyclictest0-21swapper/211:50:022
1602995991614,1cyclictest0-21swapper/212:05:012
1602995991614,1cyclictest0-21swapper/208:50:012
1602995991613,1cyclictest0-21swapper/211:28:492
1602995991613,1cyclictest0-21swapper/210:55:202
1602995991613,1cyclictest0-21swapper/210:35:032
1602995991613,1cyclictest0-21swapper/210:35:032
1602995991613,1cyclictest0-21swapper/209:50:012
1602995991613,1cyclictest0-21swapper/209:13:182
1602995991612,2cyclictest0-21swapper/212:08:002
1602995991612,2cyclictest0-21swapper/211:19:302
160299499162,9cyclictest714-21gdbus08:00:011
1602994991613,2cyclictest2033044-21/usr/sbin/munin12:20:011
1602994991613,2cyclictest1984131-21kthreadcore11:45:371
1602994991613,2cyclictest1943985-21systemd-run11:20:021
1602994991613,2cyclictest1907704-21sh10:55:351
1602994991613,2cyclictest1794099-21mailstats09:35:421
1602994991613,2cyclictest1774193-21/usr/sbin/munin09:25:301
1602994991613,2cyclictest1757205-21proc_pri09:10:421
1602994991613,2cyclictest1714989-21ls08:40:011
1602994991613,2cyclictest1690762-21cat08:20:011
1602994991613,2cyclictest1602992-21cyclictest09:50:381
1602994991613,2cyclictest1309-21mta-sts-daemon07:42:121
1602994991612,3cyclictest1979387-21unixbench_multi11:40:431
1602994991612,3cyclictest1718161-21kthreadcore08:40:381
1602994991612,3cyclictest1626579-21kthreadcore07:25:381
160299399168,3cyclictest0-21swapper/007:35:000
160299399168,2cyclictest0-21swapper/010:30:010
1602993991613,2cyclictest1855026-21sh10:20:020
1602993991613,2cyclictest1810696-21sh09:50:010
1602993991613,2cyclictest1767588-21grep09:20:340
1602993991613,2cyclictest1696826-21idleruntime-cro08:25:010
1602993991613,2cyclictest1664553-21kthreadcore07:55:380
1602993991613,2cyclictest1655743-21kthreadcore07:50:360
1602993991613,2cyclictest1629595-21cut07:30:010
1602993991613,2cyclictest1617624-21latency_hist07:20:030
1602993991613,2cyclictest1-21systemd12:00:020
1602993991613,2cyclictest0-21swapper/008:15:020
1602993991612,3cyclictest1727694-21kworker/u16:0+nfsiod10:14:050
3240591150,2phc2sys0-21swapper/308:25:423
20488182150,2sleep30-21swapper/312:30:333
160299599156,5cyclictest0-21swapper/209:40:162
160299599152,9cyclictest0-21swapper/207:30:022
1602995991513,1cyclictest0-21swapper/212:15:382
1602995991513,1cyclictest0-21swapper/210:35:242
1602995991513,1cyclictest0-21swapper/210:10:022
1602995991513,1cyclictest0-21swapper/209:55:022
1602995991513,1cyclictest0-21swapper/207:15:032
1602995991512,1cyclictest0-21swapper/211:55:352
1602995991512,1cyclictest0-21swapper/211:50:452
1602995991512,1cyclictest0-21swapper/211:22:162
1602995991512,1cyclictest0-21swapper/210:50:022
1602995991512,1cyclictest0-21swapper/210:15:282
1602995991512,1cyclictest0-21swapper/209:35:412
1602995991512,1cyclictest0-21swapper/209:26:182
1602995991512,1cyclictest0-21swapper/207:55:382
1602995991511,2cyclictest0-21swapper/211:30:222
1602995991511,2cyclictest0-21swapper/210:04:022
1602995991511,2cyclictest0-21swapper/208:40:432
160299499159,5cyclictest1309-21mta-sts-daemon10:40:341
160299499152,8cyclictest1751748-21ls09:10:001
1602994991512,2cyclictest2045442-21kthreadcore12:25:401
1602994991512,2cyclictest2003533-21sh12:00:031
1602994991512,2cyclictest1967599-21irqcore11:35:361
1602994991512,2cyclictest1945341-21irqcore11:20:371
1602994991512,2cyclictest1872002-21kthreadcore10:30:381
1602994991512,2cyclictest1872002-21kthreadcore10:30:381
1602994991512,2cyclictest1846016-21grep10:10:441
1602994991512,2cyclictest1743119-21kthreadcore09:00:381
1602994991512,2cyclictest1666908-21cpuspeed_turbos08:00:331
1602994991512,2cyclictest1608564-21unixbench-2d07:10:431
1602994991512,2cyclictest0-21swapper/112:40:011
1602994991512,2cyclictest0-21swapper/112:10:011
1602994991512,2cyclictest0-21swapper/112:05:001
1602994991512,2cyclictest0-21swapper/110:10:031
1602994991510,4cyclictest1306-21mta-sts-daemon08:25:161
1602994991510,2cyclictest1309-21mta-sts-daemon09:30:121
160299399154,6cyclictest0-21swapper/008:42:410
160299399151,6cyclictest0-21swapper/011:06:340
1602993991512,2cyclictest1959211-21/usr/sbin/munin11:30:420
1602993991512,2cyclictest1760610-21sort09:15:360
1602993991512,2cyclictest1300-21mta-sts-daemon11:21:020
1602993991512,2cyclictest1-21systemd10:35:420
1602993991512,2cyclictest0-21swapper/010:45:010
1602993991511,3cyclictest2003538-21kworker/u16:1+nfsiod12:16:130
1602993991511,3cyclictest1300-21mta-sts-daemon07:20:330
3240591140,2phc2sys0-21swapper/311:50:103
3240591140,2phc2sys0-21swapper/311:19:343
3240591140,12phc2sys0-21swapper/309:23:583
1602995991412,1cyclictest0-21swapper/212:36:342
1602995991412,1cyclictest0-21swapper/208:20:022
1602995991412,1cyclictest0-21swapper/208:05:382
1602995991412,1cyclictest0-21swapper/207:15:392
1602995991411,1cyclictest0-21swapper/211:10:392
1602995991411,1cyclictest0-21swapper/210:25:402
1602995991411,1cyclictest0-21swapper/209:55:322
1602995991411,1cyclictest0-21swapper/209:15:372
1602995991411,1cyclictest0-21swapper/209:00:372
1602995991411,1cyclictest0-21swapper/208:35:322
1602995991411,1cyclictest0-21swapper/207:50:022
160299499141,7cyclictest1696820-21munin-run08:25:011
1602994991411,2cyclictest664-21dbus-daemon07:55:021
1602994991411,2cyclictest1704532-21kthreadcore08:30:381
1602994991411,2cyclictest1309-21mta-sts-daemon11:50:441
1602994991411,2cyclictest1309-21mta-sts-daemon11:31:221
1602994991411,2cyclictest1300-21mta-sts-daemon09:17:171
1602994991410,3cyclictest1730473-21kthreadcore08:50:371
1602994991410,3cyclictest1619037-21kthreadcore07:20:371
160299399149,4cyclictest1300-21mta-sts-daemon08:55:170
160299399148,4cyclictest1729118-21cut08:50:370
160299399146,6cyclictest1744465-21tr09:00:390
160299399144,5cyclictest1672088-21sshd08:02:420
1602993991411,2cyclictest1710589-21kernelversion08:35:370
1602993991411,2cyclictest1698660-21kthreadcore08:25:370
1602993991411,2cyclictest1686553-21kthreadcore08:15:380
1602993991411,2cyclictest1300-21mta-sts-daemon08:30:460
1602993991411,2cyclictest0-21swapper/011:45:450
3240591133,2phc2sys0-21swapper/308:22:173
3240591130,3phc2sys0-21swapper/311:20:163
3240591130,3phc2sys0-21swapper/310:42:213
3240591130,3phc2sys0-21swapper/310:04:403
3240591130,2phc2sys0-21swapper/311:32:063
3240591130,2phc2sys0-21swapper/310:39:283
3240591130,1phc2sys0-21swapper/309:45:053
160299599139,2cyclictest0-21swapper/210:10:382
1602995991311,1cyclictest0-21swapper/212:30:162
1602995991311,1cyclictest0-21swapper/211:05:322
1602995991311,1cyclictest0-21swapper/208:55:382
1602995991311,1cyclictest0-21swapper/207:45:012
1602995991310,2cyclictest0-21swapper/207:50:372
1602995991310,2cyclictest0-21swapper/207:20:372
1602995991310,1cyclictest0-21swapper/210:40:022
1602995991310,1cyclictest0-21swapper/209:05:372
1602995991310,1cyclictest0-21swapper/208:25:362
1602995991310,1cyclictest0-21swapper/208:00:382
160299599130,6cyclictest0-21swapper/212:30:022
1602994991310,2cyclictest1738817-21processes08:55:421
3240591121,2phc2sys0-21swapper/307:25:153
3240591120,4phc2sys0-21swapper/312:16:353
3240591120,2phc2sys0-21swapper/312:07:493
3240591120,2phc2sys0-21swapper/311:36:073
3240591120,2phc2sys0-21swapper/311:11:583
3240591120,1phc2sys0-21swapper/308:54:233
3240591120,1phc2sys0-21swapper/307:53:403
160299499125,5cyclictest1640571-21wc07:35:391
160299499125,2cyclictest69250irq/121-eno108:05:431
1157598120,3rtkit-daemon676-21mta-sts-daemon07:09:301
3240591112,2phc2sys0-21swapper/309:00:163
3240591110,3phc2sys0-21swapper/308:10:393
3240591110,2phc2sys0-21swapper/312:37:103
3240591110,2phc2sys0-21swapper/308:35:153
3240591110,2phc2sys0-21swapper/307:55:363
3240591110,1phc2sys0-21swapper/312:10:223
3240591110,1phc2sys0-21swapper/311:48:093
3240591110,1phc2sys0-21swapper/309:06:413
3240591110,1phc2sys0-21swapper/308:30:263
3240591110,1phc2sys0-21swapper/307:38:173
3240591102,5phc2sys1623275-21chrt07:23:133
3240591102,2phc2sys0-21swapper/311:55:393
3240591102,2phc2sys0-21swapper/311:00:203
3240591102,2phc2sys0-21swapper/309:37:443
3240591102,2phc2sys0-21swapper/309:27:253
3240591101,2phc2sys0-21swapper/308:55:393
3240591101,2phc2sys0-21swapper/308:40:363
3240591101,2phc2sys0-21swapper/307:10:403
3240591100,3phc2sys0-21swapper/307:40:173
3240591100,2phc2sys0-21swapper/312:28:383
3240591100,2phc2sys0-21swapper/311:25:413
3240591100,2phc2sys0-21swapper/309:55:153
3240591100,2phc2sys0-21swapper/309:40:163
3240591100,2phc2sys0-21swapper/309:31:063
3240591100,2phc2sys0-21swapper/307:05:113
3240591100,1phc2sys0-21swapper/310:05:553
160299399108,1cyclictest0-21swapper/007:10:020
324059194,2phc2sys0-21swapper/308:15:343
324059192,2phc2sys0-21swapper/307:15:163
324059192,1phc2sys0-21swapper/312:21:133
324059191,3phc2sys0-21swapper/308:00:163
324059191,2phc2sys0-21swapper/311:40:323
324059191,2phc2sys0-21swapper/308:05:343
324059190,2phc2sys0-21swapper/308:45:373
324059190,1phc2sys0-21swapper/307:31:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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