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2026-05-08 - 22:35
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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 highest latencies:
System rackeslot2.osadl.org (updated Fri May 08, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23543242670,1sleep12354323-21ssh10:04:171
2116769992716,6cyclictest3841370-21avahi-daemon10:25:020
2116779992521,2cyclictest0-21swapper/209:10:162
22405232240,2sleep30-21swapper/308:45:233
2116779992320,1cyclictest0-21swapper/209:00:012
2116769992312,6cyclictest0-21swapper/010:30:020
2116769992312,6cyclictest0-21swapper/010:30:020
2649091228,2phc2sys0-21swapper/310:36:073
2116779992220,1cyclictest0-21swapper/210:30:022
2116779992220,1cyclictest0-21swapper/210:30:022
2116772992219,2cyclictest1-21systemd09:30:001
2116772992218,2cyclictest2522964-21grep11:55:031
2116772992213,3cyclictest0-21swapper/110:45:011
211676999228,4cyclictest2357912-21kthreadcore10:05:250
2116769992219,2cyclictest1-21systemd11:10:000
2116769992219,2cyclictest1-21systemd11:10:000
383433398210,5rtkit-daemon3851704-21mta-sts-daemon10:04:220
2649091210,2phc2sys0-21swapper/309:30:013
2116779992119,1cyclictest0-21swapper/211:30:022
2116779992118,1cyclictest0-21swapper/208:55:012
2116779992118,1cyclictest0-21swapper/208:55:012
2116779992118,1cyclictest0-21swapper/207:15:012
2116772992118,2cyclictest2385136-21/usr/sbin/munin10:25:011
2116772992117,2cyclictest2584337-21systemd12:35:011
383433398200,3rtkit-daemon3851705-21mta-sts-daemon07:26:031
383433398200,3rtkit-daemon3851704-21mta-sts-daemon12:31:070
2649091200,2phc2sys0-21swapper/310:57:273
2116779992017,1cyclictest0-21swapper/210:15:012
2116772992017,2cyclictest2116761-21cyclictest11:45:011
2116772992017,2cyclictest1326-21systemd-logind08:00:021
2116772992015,4cyclictest2123460-21packagekitd07:15:011
2116769992017,2cyclictest2220420-21grep08:30:010
2116769992013,6cyclictest3851704-21mta-sts-daemon12:05:590
2116769992010,5cyclictest0-21swapper/010:55:020
383433398190,3rtkit-daemon3851705-21mta-sts-daemon07:24:481
2116779991916,1cyclictest0-21swapper/212:20:002
2116779991916,1cyclictest0-21swapper/211:05:012
2116779991916,1cyclictest0-21swapper/208:20:012
2116772991916,2cyclictest2388346-21kthreadcore10:25:241
2116772991916,2cyclictest2388346-21kthreadcore10:25:241
2116769991916,2cyclictest2484770-21sh11:30:020
2116769991916,2cyclictest2252039-21systemd-run08:55:020
2116769991916,2cyclictest2252039-21systemd-run08:55:020
2116769991912,6cyclictest0-21swapper/011:15:010
211676999191,17cyclictest3851705-21mta-sts-daemon10:10:280
2649091181,3phc2sys0-21swapper/311:52:513
2116779991815,1cyclictest0-21swapper/211:55:022
2116779991815,1cyclictest0-21swapper/211:10:012
2116779991815,1cyclictest0-21swapper/211:10:012
2116779991815,1cyclictest0-21swapper/210:55:002
2116779991815,1cyclictest0-21swapper/209:20:302
2116779991815,1cyclictest0-21swapper/207:35:002
211677999181,10cyclictest0-21swapper/210:40:012
2116772991815,2cyclictest2445905-21latency_hist11:05:011
2116772991815,2cyclictest2396864-21kthreadcore10:30:251
2116772991815,2cyclictest1290-21dbus-daemon09:30:281
2116772991814,3cyclictest2233077-21systemd-run08:40:021
2116772991810,3cyclictest0-21swapper/111:05:291
2116772991810,3cyclictest0-21swapper/111:05:291
2116772991810,3cyclictest0-21swapper/110:05:181
2116769991816,1cyclictest2576302-21gpgv12:30:000
2116769991815,2cyclictest2522758-21apt-key11:55:010
2116769991815,2cyclictest2116761-21cyclictest10:40:250
2116769991815,2cyclictest2116761-21cyclictest09:10:280
2116769991815,2cyclictest1290-21dbus-daemon10:40:000
2116769991815,2cyclictest0-21swapper/011:20:010
2116769991810,7cyclictest3851705-21mta-sts-daemon10:59:360
2116769991810,4cyclictest3851702-21mta-sts-daemon11:04:360
2649091170,2phc2sys0-21swapper/312:25:263
25050192170,2sleep20-21swapper/211:40:262
21570502170,2sleep12144475-21kworker/1:0+events07:40:011
2116779991715,1cyclictest0-21swapper/208:00:002
2116779991714,1cyclictest0-21swapper/212:00:292
2116779991714,1cyclictest0-21swapper/211:10:262
2116779991714,1cyclictest0-21swapper/211:00:002
2116779991714,1cyclictest0-21swapper/210:25:012
2116779991714,1cyclictest0-21swapper/210:05:172
2116779991714,1cyclictest0-21swapper/209:40:002
211677999171,12cyclictest0-21swapper/207:40:172
2116772991714,2cyclictest2545760-21systemd-run12:10:011
2116772991714,2cyclictest2484765-21cut11:30:021
2116772991714,2cyclictest2432464-21sed10:55:241
2116772991714,2cyclictest2428745-21sendmail_mailqu10:50:281
2116772991714,2cyclictest2226607-21systemd-run08:35:001
2116772991714,2cyclictest2202246-21gltestperf08:15:211
2116772991714,2cyclictest0-21swapper/111:35:021
2116772991712,1cyclictest134050irq/121-eno111:17:331
2116772991710,3cyclictest2329774-21ptp4l09:45:271
211676999179,4cyclictest0-21swapper/009:55:290
211676999177,6cyclictest0-21swapper/012:15:010
2116769991714,2cyclictest2258293-21apt-config09:00:010
2116769991714,2cyclictest2196371-21irqrtprio08:10:220
2116769991714,2cyclictest2060198-21GUsbEventThread07:40:100
2116769991713,2cyclictest2258722-21/usr/sbin/munin09:00:240
2116769991712,4cyclictest2385024-21kworker/u16:3-xprtiod10:49:290
2116769991712,2cyclictest3851703-21mta-sts-daemon12:20:460
2116769991711,5cyclictest2286289-21latency_hist09:20:000
383433398160,2rtkit-daemon0-21swapper/110:46:351
26490911611,2phc2sys0-21swapper/307:30:243
2649091160,4phc2sys0-21swapper/311:23:323
2649091160,2phc2sys0-21swapper/312:16:513
2649091160,2phc2sys0-21swapper/311:57:033
2649091160,2phc2sys0-21swapper/309:34:173
2649091160,1phc2sys0-21swapper/308:55:583
211677999163,9cyclictest0-21swapper/209:34:072
2116779991614,1cyclictest0-21swapper/210:40:202
2116779991613,2cyclictest0-21swapper/211:30:192
2116779991613,1cyclictest0-21swapper/212:40:002
2116779991613,1cyclictest0-21swapper/212:30:002
2116779991613,1cyclictest0-21swapper/212:25:012
2116779991613,1cyclictest0-21swapper/211:50:002
2116779991613,1cyclictest0-21swapper/211:50:002
2116779991613,1cyclictest0-21swapper/211:40:012
2116779991613,1cyclictest0-21swapper/210:00:222
2116779991613,1cyclictest0-21swapper/208:40:012
2116779991613,1cyclictest0-21swapper/207:50:012
211677299161,6cyclictest2535329-21tr12:00:251
2116772991613,2cyclictest3841370-21avahi-daemon08:50:021
2116772991613,2cyclictest3841370-21avahi-daemon07:55:011
2116772991613,2cyclictest2576459-21apt-key12:30:001
2116772991613,2cyclictest2474982-21mailstats11:20:291
2116772991613,2cyclictest2400955-21tr10:35:181
2116772991613,2cyclictest2209512-21kthreadcore08:20:231
2116772991613,2cyclictest1290-21dbus-daemon12:20:001
2116772991613,2cyclictest1290-21dbus-daemon07:45:011
2116772991612,3cyclictest3827634-1atopacctd08:40:251
2116772991612,3cyclictest2477117-21kworker/u16:3+nfsiod12:21:331
2116772991612,3cyclictest2213547-21kworker/u16:3+nfsiod09:24:581
2116772991612,3cyclictest1290-21dbus-daemon12:00:001
2116772991612,2cyclictest1290-21dbus-daemon08:30:021
211676999168,4cyclictest1996-21runrttasks10:17:420
211676999167,4cyclictest2270941-21diskmemload12:38:030
211676999164,4cyclictest3851705-21mta-sts-daemon09:38:430
211676999161,4cyclictest2289528-21kthreadcore09:20:260
2116769991614,1cyclictest2169896-21apt-key07:50:000
2116769991613,2cyclictest2515000-21latency_hist11:50:010
2116769991613,2cyclictest2515000-21latency_hist11:50:010
2116769991613,2cyclictest2501298-21irqcore11:40:230
2116769991613,2cyclictest2118337-21kthreadcore07:10:220
2116769991613,2cyclictest1326-21systemd-logind08:45:000
2116769991613,2cyclictest1326-21systemd-logind07:10:010
2116769991612,2cyclictest2187779-21pmu-power08:00:280
2649091153,2phc2sys0-21swapper/311:25:453
2649091150,4phc2sys0-21swapper/308:00:153
2649091150,2phc2sys0-21swapper/312:04:083
2649091150,2phc2sys0-21swapper/307:15:183
2649091150,1phc2sys0-21swapper/310:22:493
211677999151,6cyclictest0-21swapper/210:20:012
2116779991513,1cyclictest0-21swapper/209:30:012
2116779991513,1cyclictest0-21swapper/207:20:012
2116779991512,1cyclictest0-21swapper/212:15:002
2116779991512,1cyclictest0-21swapper/212:07:302
2116779991512,1cyclictest0-21swapper/211:20:232
2116779991512,1cyclictest0-21swapper/211:15:172
2116779991512,1cyclictest0-21swapper/210:31:192
2116779991512,1cyclictest0-21swapper/209:59:302
2116779991512,1cyclictest0-21swapper/209:45:282
2116779991512,1cyclictest0-21swapper/209:15:172
2116779991512,1cyclictest0-21swapper/209:01:342
2116772991512,2cyclictest3840882-21snmpd12:13:581
2116772991512,2cyclictest2585526-21sort12:35:211
2116772991512,2cyclictest2493243-21grep11:35:201
2116772991512,2cyclictest2371012-21if_enp1s010:15:201
2116772991512,2cyclictest2320179-21kthreadcore09:40:251
2116772991512,2cyclictest2279203-21cpuspeed_turbos09:15:191
2116772991511,3cyclictest3851704-21mta-sts-daemon09:10:591
2116772991511,3cyclictest2257469-21switchtime08:55:291
2116772991510,2cyclictest3851705-21mta-sts-daemon09:37:301
211677299150,3cyclictest0-21swapper/109:04:311
2116769991512,2cyclictest2531809-21irqcore12:00:220
2116769991512,2cyclictest2396433-21kthreadcore10:30:250
2116769991512,2cyclictest2325511-21sort09:45:220
2116769991512,2cyclictest2266148-21irqrtprio09:05:220
2116769991512,2cyclictest2204424-21kthreadcore08:15:250
2116769991512,2cyclictest2139661-21irqrtprio07:25:220
2116769991512,2cyclictest2123254-21munin-node07:56:310
2116769991511,3cyclictest3834332-21rtkit-daemon09:43:380
2116769991511,2cyclictest2170443-21cpuspeed_turbos07:50:170
211676999150,3cyclictest2156982-21wc07:40:000
211676999150,1cyclictest2299476-21ssh09:25:300
2649091145,2phc2sys0-21swapper/311:14:223
2649091141,1phc2sys0-21swapper/307:20:243
2649091140,4phc2sys0-21swapper/312:37:043
2649091140,3phc2sys0-21swapper/312:23:143
2649091140,2phc2sys0-21swapper/312:13:033
2649091140,2phc2sys0-21swapper/311:49:333
2649091140,2phc2sys0-21swapper/311:49:333
2649091140,2phc2sys0-21swapper/310:34:023
2649091140,2phc2sys0-21swapper/309:35:473
2649091140,1phc2sys0-21swapper/308:26:523
2116779991412,1cyclictest0-21swapper/209:50:182
2116779991412,1cyclictest0-21swapper/209:40:242
2116779991412,1cyclictest0-21swapper/208:30:172
2116779991412,1cyclictest0-21swapper/207:10:022
2116779991411,1cyclictest0-21swapper/212:30:152
2116779991411,1cyclictest0-21swapper/210:48:302
2116779991411,1cyclictest0-21swapper/208:30:012
2116779991411,1cyclictest0-21swapper/208:20:252
2116779991411,1cyclictest0-21swapper/207:25:252
211677299149,4cyclictest3834789-21rpcbind09:52:361
2116772991412,1cyclictest2131980-21latency_hist07:20:001
2116772991411,2cyclictest3851704-21mta-sts-daemon10:11:011
2116772991411,2cyclictest2168702-21proc_pri07:45:271
2116772991410,3cyclictest2213547-21kworker/u16:3+nfsiod09:57:131
2116772991410,3cyclictest2198505-21kthreadcore08:10:241
2116772991410,3cyclictest2184476-21kthreadcore08:00:241
211677299140,13cyclictest0-21swapper/108:50:151
211677299140,13cyclictest0-21swapper/108:50:151
211676999149,4cyclictest3851704-21mta-sts-daemon07:34:200
211676999145,5cyclictest0-21swapper/008:48:320
211676999141,7cyclictest1290-21dbus-daemon07:25:010
2116769991412,1cyclictest3851703-21mta-sts-daemon11:34:190
2116769991411,2cyclictest2559023-21timerandwakeup12:15:300
2116769991411,2cyclictest2523772-21uniq11:55:190
2116769991411,2cyclictest2496044-21kthreadcore11:35:240
2116769991411,2cyclictest2472479-21kthreadcore11:20:240
2116769991411,2cyclictest2303095-21kthreadcore09:30:230
2116769991411,2cyclictest2232186-21timerandwakeup08:35:290
2116769991411,2cyclictest2225700-21proc_pri08:30:260
2116769991411,2cyclictest2212821-21phc2sys08:20:270
2116769991411,2cyclictest2189175-21cpu08:05:180
2116769991411,2cyclictest2125783-21latency07:15:050
2649091130,3phc2sys0-21swapper/307:42:193
2649091130,2phc2sys0-21swapper/311:41:023
2649091130,2phc2sys0-21swapper/311:35:163
2649091130,2phc2sys0-21swapper/311:34:483
2649091130,2phc2sys0-21swapper/310:48:133
211677999139,2cyclictest0-21swapper/208:40:272
2116779991312,1cyclictest0-21swapper/207:25:002
2116779991311,1cyclictest0-21swapper/208:05:252
2116779991310,1cyclictest0-21swapper/209:05:182
2116779991310,1cyclictest0-21swapper/208:45:222
2116779991310,1cyclictest0-21swapper/208:00:252
2116779991310,1cyclictest0-21swapper/207:50:232
2116772991311,1cyclictest2146066-21kthreadcore07:30:231
2116772991311,1cyclictest2060469-21kworker/u16:0-ext4-rsv-conversion07:10:021
2116772991310,2cyclictest3851704-21mta-sts-daemon11:12:181
2116772991310,2cyclictest2508131-21tr11:45:191
2116772991310,2cyclictest2508131-21tr11:45:191
2116772991310,2cyclictest2268734-21kthreadcore09:05:241
2116772991310,2cyclictest2190310-21kthreadcore08:05:241
2116769991310,2cyclictest3851705-21mta-sts-daemon09:52:210
2649091121,2phc2sys0-21swapper/310:15:023
2649091120,5phc2sys0-21swapper/309:20:183
2649091120,3phc2sys0-21swapper/310:50:243
2649091120,2phc2sys0-21swapper/310:09:013
2649091120,2phc2sys0-21swapper/310:02:273
2649091120,2phc2sys0-21swapper/309:16:513
2649091120,2phc2sys0-21swapper/309:10:173
2649091120,2phc2sys0-21swapper/307:50:013
2649091120,2phc2sys0-21swapper/307:08:143
2649091120,1phc2sys0-21swapper/311:03:443
211677999129,1cyclictest0-21swapper/208:10:252
211677999129,1cyclictest0-21swapper/207:35:232
2116779991210,1cyclictest0-21swapper/211:55:222
2649091112,2phc2sys0-21swapper/309:00:143
2649091111,2phc2sys0-21swapper/308:30:173
2649091110,9phc2sys0-21swapper/310:25:543
2649091110,9phc2sys0-21swapper/310:25:543
2649091110,5phc2sys0-21swapper/308:50:153
2649091110,5phc2sys0-21swapper/308:50:153
2649091110,2phc2sys0-21swapper/310:44:523
2649091110,1phc2sys0-21swapper/308:12:093
2649091110,1phc2sys0-21swapper/307:26:083
2649091110,1phc2sys0-21swapper/307:12:463
2649091103,3phc2sys0-21swapper/310:16:423
2649091103,1phc2sys0-21swapper/312:34:193
2649091102,2phc2sys0-21swapper/308:40:233
2649091101,2phc2sys0-21swapper/311:15:233
2649091100,2phc2sys0-21swapper/312:06:263
2649091100,2phc2sys0-21swapper/311:07:133
2649091100,2phc2sys0-21swapper/311:07:133
2649091100,2phc2sys0-21swapper/309:52:103
2649091100,2phc2sys0-21swapper/309:42:243
2649091100,2phc2sys0-21swapper/308:21:033
264909191,3phc2sys0-21swapper/308:35:163
264909191,2phc2sys0-21swapper/309:55:223
264909190,4phc2sys0-21swapper/309:05:183
264909190,2phc2sys0-21swapper/309:45:083
264909190,2phc2sys0-21swapper/308:15:183
264909190,2phc2sys0-21swapper/308:05:173
264909190,2phc2sys0-21swapper/307:55:183
264909190,2phc2sys0-21swapper/307:35:193
264909180,2phc2sys0-21swapper/307:50:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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