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2026-06-18 - 05:19
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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 Thu Jun 18, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6817072290,2sleep0241rcuc/023:40:180
6170602240,0sleep0617059-21unixbench_singl22:55:250
307106992421,2cyclictest1-21systemd21:10:010
307106992415,5cyclictest509687-21kthreadcore21:45:160
307107992320,2cyclictest699808-21cron23:55:011
307106992313,6cyclictest0-21swapper/022:00:020
307107992215,2cyclictest492398rtkit-daemon21:35:491
307106992219,2cyclictest537640-21systemd22:05:020
3153791210,2phc2sys0-21swapper/323:24:363
307106992112,8cyclictest557837-21unixbench-2d22:15:240
3153791201,5phc2sys0-21swapper/319:05:103
307107992017,2cyclictest765-1atopacctd23:40:021
307107992017,2cyclictest707196-21cron00:00:011
30710699208,5cyclictest746937-21kthreadcore00:25:180
307106992017,2cyclictest744020-21cron00:25:010
307106992017,2cyclictest633698-21sh23:10:020
307106992017,2cyclictest313515-21cpuspeed19:15:020
307108991917,1cyclictest0-21swapper/223:10:022
307108991915,2cyclictest0-21swapper/200:38:392
307108991915,2cyclictest0-21swapper/200:38:392
30710899191,4cyclictest0-21swapper/200:10:012
307107991917,1cyclictest633704-21apt-key23:10:021
307107991916,2cyclictest660-21dbus-daemon00:20:011
307107991916,2cyclictest559712-21systemd22:20:021
307107991915,2cyclictest0-21swapper/100:40:031
307107991915,2cyclictest0-21swapper/100:40:031
307107991910,4cyclictest0-21swapper/121:45:001
30710699199,6cyclictest0-21swapper/022:05:120
307106991916,2cyclictest670626-21systemd23:35:020
307106991916,2cyclictest660-21dbus-daemon00:10:220
307106991912,2cyclictest0-21swapper/023:35:180
307106991910,7cyclictest0-21swapper/021:45:010
3153791181,4phc2sys0-21swapper/319:20:123
307108991816,1cyclictest0-21swapper/219:15:032
307108991815,1cyclictest0-21swapper/223:35:212
307108991815,1cyclictest0-21swapper/223:00:142
307108991815,1cyclictest0-21swapper/221:40:022
307108991813,3cyclictest0-21swapper/221:20:032
307108991810,6cyclictest0-21swapper/220:50:012
307107991815,2cyclictest660-21dbus-daemon19:50:021
307107991814,3cyclictest274-21systemd-journal21:15:021
307107991811,3cyclictest513194-21grep21:45:191
30710799180,3cyclictest655414-21ssh23:24:101
30710699189,5cyclictest0-21swapper/021:29:150
30710699187,6cyclictest0-21swapper/021:50:180
30710699187,6cyclictest0-21swapper/021:37:140
30710699186,7cyclictest0-21swapper/000:35:170
30710699186,7cyclictest0-21swapper/000:35:170
307106991815,2cyclictest707497-21munin-plugin-st00:00:030
307106991815,2cyclictest660-21dbus-daemon19:25:010
307106991811,6cyclictest0-21swapper/023:30:010
307106991811,5cyclictest687019-21cut23:45:170
6188642170,2sleep1618859-21ssh23:00:021
3153791170,2phc2sys0-21swapper/322:09:403
3153791170,2phc2sys0-21swapper/321:54:173
3153791170,2phc2sys0-21swapper/321:11:513
3153791170,2phc2sys0-21swapper/300:27:443
30710899179,1cyclictest0-21swapper/222:55:012
30710899179,1cyclictest0-21swapper/221:55:002
307108991715,1cyclictest0-21swapper/223:55:172
307108991714,1cyclictest0-21swapper/223:45:022
307108991714,1cyclictest0-21swapper/222:45:122
307108991714,1cyclictest0-21swapper/222:35:012
307108991714,1cyclictest0-21swapper/221:40:122
307108991714,1cyclictest0-21swapper/220:20:392
307108991713,2cyclictest0-21swapper/220:00:182
307107991714,2cyclictest742986-21runrttasks00:21:531
307107991714,2cyclictest581638-21apt-config22:35:011
307107991714,2cyclictest552213-21wc22:15:011
307107991714,2cyclictest532333-21kthreadcore22:00:171
307107991714,2cyclictest483585-21xargs21:25:251
307107991714,2cyclictest430710-21pmu-power20:45:201
307107991714,2cyclictest0-21swapper/122:50:031
307107991714,2cyclictest0-21swapper/120:25:021
30710699179,4cyclictest0-21swapper/020:05:110
30710699179,4cyclictest0-21swapper/000:05:010
307106991714,2cyclictest388559-21systemd20:15:020
307106991714,2cyclictest307104-21cyclictest23:55:020
307106991714,1cyclictest0-21swapper/022:35:010
307106991711,5cyclictest467859-21kthreadcore21:15:200
307106991710,6cyclictest644161-21kthreadcore23:15:180
3153791161,4phc2sys0-21swapper/320:20:113
3153791161,2phc2sys0-21swapper/320:56:333
3153791160,6phc2sys0-21swapper/322:51:563
3153791160,1phc2sys0-21swapper/300:11:213
30710899167,1cyclictest0-21swapper/219:25:012
30710899162,7cyclictest0-21swapper/223:20:012
30710899161,5cyclictest0-21swapper/219:50:012
307108991614,1cyclictest0-21swapper/223:50:022
307108991614,1cyclictest0-21swapper/223:25:022
307108991614,1cyclictest0-21swapper/220:05:162
307108991614,1cyclictest0-21swapper/219:20:012
307108991613,1cyclictest0-21swapper/222:35:212
307108991613,1cyclictest0-21swapper/221:10:022
307108991613,1cyclictest0-21swapper/221:00:012
307108991613,1cyclictest0-21swapper/220:30:002
307108991612,2cyclictest0-21swapper/222:10:182
307107991613,2cyclictest693-21systemd-logind20:05:021
307107991613,2cyclictest611545-21/usr/sbin/munin22:55:031
307107991613,2cyclictest523808-21sed21:55:151
307107991613,2cyclictest1-21systemd23:03:141
307107991612,3cyclictest550655-21kworker/u16:3+nfsiod22:39:491
307107991612,3cyclictest425660-21kworker/u16:1+nfsiod22:26:111
307107991611,4cyclictest1237-21mta-sts-daemon00:05:371
307107991611,2cyclictest439315-21kthreadcore20:55:171
30710699169,6cyclictest1247-21mta-sts-daemon19:30:190
30710699168,6cyclictest0-21swapper/000:10:020
30710699168,4cyclictest625551-21runrttasks23:03:340
30710699167,5cyclictest0-21swapper/022:50:020
30710699167,4cyclictest0-21swapper/023:20:120
307106991613,2cyclictest634018-21/usr/sbin/munin23:10:200
307106991613,2cyclictest634018-21/usr/sbin/munin23:10:200
307106991613,2cyclictest605089-21sed22:50:150
307106991613,2cyclictest472181-21irqrtprio21:20:160
30710699161,11cyclictest0-21swapper/022:14:320
307106991610,5cyclictest307104-21cyclictest00:16:110
307106991610,5cyclictest1237-21mta-sts-daemon19:45:130
3153791151,3phc2sys0-21swapper/319:35:113
31537911510,2phc2sys0-21swapper/319:32:293
3153791150,3phc2sys0-21swapper/319:40:163
3153791150,2phc2sys0-21swapper/323:58:343
3153791150,2phc2sys0-21swapper/322:31:363
3153791150,2phc2sys0-21swapper/319:10:223
3153791150,2phc2sys0-21swapper/300:08:433
3153791150,1phc2sys0-21swapper/322:56:453
3153791150,1phc2sys0-21swapper/321:29:283
3153791150,1phc2sys0-21swapper/320:11:213
3153791150,1phc2sys0-21swapper/300:18:223
30710899151,8cyclictest0-21swapper/200:20:012
307108991513,1cyclictest0-21swapper/223:10:172
307108991513,1cyclictest0-21swapper/223:10:172
307108991513,1cyclictest0-21swapper/219:45:032
307108991512,1cyclictest0-21swapper/223:35:012
307108991512,1cyclictest0-21swapper/222:25:012
307108991512,1cyclictest0-21swapper/221:34:052
307108991512,1cyclictest0-21swapper/221:10:172
307108991512,1cyclictest0-21swapper/220:35:232
307108991512,1cyclictest0-21swapper/219:55:012
307108991512,1cyclictest0-21swapper/200:35:012
307108991512,1cyclictest0-21swapper/200:20:472
307108991511,2cyclictest0-21swapper/221:49:352
307108991511,2cyclictest0-21swapper/220:11:482
307108991511,2cyclictest0-21swapper/219:25:162
307108991510,4cyclictest0-21swapper/222:00:002
307107991513,1cyclictest1237-21mta-sts-daemon21:21:211
307107991512,2cyclictest757005-21timerandwakeup00:30:231
307107991512,2cyclictest714618-21cron00:05:011
307107991512,2cyclictest688384-21kthreadcore23:45:181
307107991512,2cyclictest678858-21gltestperf23:40:141
307107991512,2cyclictest521142-21head21:50:241
307107991512,2cyclictest463765-21aten_repower_vo21:15:121
307107991512,2cyclictest340757-21gltestperf19:35:151
307107991512,2cyclictest339839-21cut19:35:021
307107991512,2cyclictest313165-21sh19:15:011
307107991512,2cyclictest307104-21cyclictest00:10:171
307107991512,2cyclictest1247-21mta-sts-daemon21:33:481
307107991512,2cyclictest1-21systemd19:30:021
307107991512,2cyclictest0-21swapper/120:35:011
307107991510,4cyclictest0-21swapper/123:20:001
307107991510,2cyclictest1246-21mta-sts-daemon22:21:501
30710699159,5cyclictest425937-21tail20:45:110
30710699159,5cyclictest1237-21mta-sts-daemon22:35:170
30710699156,5cyclictest0-21swapper/022:25:210
307106991513,1cyclictest0-21swapper/020:25:010
307106991512,2cyclictest765-1atopacctd21:30:130
307106991512,2cyclictest658-21avahi-daemon20:40:020
307106991512,2cyclictest461112-21cut21:10:210
307106991512,2cyclictest313225-21munin-node19:41:510
307106991512,2cyclictest1247-21mta-sts-daemon19:55:160
307106991512,2cyclictest1242-21mta-sts-daemon19:30:010
3153791140,4phc2sys0-21swapper/322:40:243
3153791140,3phc2sys0-21swapper/300:40:033
3153791140,3phc2sys0-21swapper/300:40:033
3153791140,2phc2sys0-21swapper/322:25:593
3153791140,2phc2sys0-21swapper/322:15:293
3153791140,2phc2sys0-21swapper/321:18:303
3153791140,2phc2sys0-21swapper/320:30:013
307108991412,1cyclictest0-21swapper/221:26:372
307108991412,1cyclictest0-21swapper/221:25:032
307108991412,1cyclictest0-21swapper/200:12:012
307108991411,2cyclictest0-21swapper/220:30:092
307108991411,1cyclictest0-21swapper/222:40:162
307108991411,1cyclictest0-21swapper/222:15:152
307108991411,1cyclictest0-21swapper/219:55:162
30710799149,4cyclictest1246-21mta-sts-daemon20:17:031
30710799148,2cyclictest67250irq/126-eno123:10:121
30710799148,2cyclictest67250irq/126-eno123:10:121
307107991411,2cyclictest749041-21kthreadcore00:25:191
307107991411,2cyclictest666174-21kthreadcore23:30:181
307107991411,2cyclictest657394-21kthreadcore23:25:171
307107991411,2cyclictest541423-21kthreadcore22:05:181
307107991411,2cyclictest404026-21kthreadcore20:25:181
307107991411,2cyclictest323129-21kthreadcore19:20:191
307107991411,2cyclictest1237-21mta-sts-daemon22:41:261
307107991411,2cyclictest1-21systemd20:50:161
307107991410,3cyclictest765-1atopacctd19:45:031
307107991410,3cyclictest424916-21timerandwakeup20:40:251
307107991410,3cyclictest415870-21kthreadcore20:35:181
307107991410,3cyclictest320073-21kthreadcore19:15:191
307107991410,2cyclictest0-21swapper/121:10:021
30710799140,12cyclictest388367-21awk20:15:001
30710699145,5cyclictest0-21swapper/020:34:050
307106991411,2cyclictest589647-21acpi22:40:110
307106991411,2cyclictest560498-21fschecks_time22:20:140
307106991411,2cyclictest449934-21latency_hist21:05:010
307106991411,2cyclictest389317-21cut20:15:130
307106991411,2cyclictest371064-21sh20:00:130
307106991411,2cyclictest1246-21mta-sts-daemon19:50:190
307106991411,2cyclictest0-21swapper/019:15:240
307106991410,3cyclictest1242-21mta-sts-daemon20:50:230
30710699140,9cyclictest401120-21/usr/sbin/munin20:25:140
3153791132,3phc2sys0-21swapper/321:40:303
3153791132,2phc2sys0-21swapper/320:41:223
3153791131,5phc2sys0-21swapper/320:00:103
3153791130,3phc2sys0-21swapper/321:30:123
3153791130,2phc2sys0-21swapper/323:33:003
3153791130,2phc2sys0-21swapper/323:16:213
3153791130,2phc2sys0-21swapper/321:55:583
30710899134,6cyclictest4442322sleep221:00:122
30710899133,5cyclictest0-21swapper/223:50:122
30710899131,6cyclictest0-21swapper/222:55:112
307108991311,1cyclictest0-21swapper/223:25:192
307108991311,1cyclictest0-21swapper/222:25:222
307108991311,1cyclictest0-21swapper/200:25:222
307108991311,1cyclictest0-21swapper/200:04:402
307108991310,1cyclictest0-21swapper/222:05:162
307108991310,1cyclictest0-21swapper/222:00:102
30710799139,3cyclictest444831-21gltestperf21:00:151
30710799139,3cyclictest368692-21kthreadcore19:55:201
30710799139,3cyclictest358393-21aten_repower_cu19:50:121
307106991310,2cyclictest438272-21cpuspeed_turbos20:55:120
307106991310,2cyclictest420428-21head20:40:160
307106991310,2cyclictest340151-21tail19:35:120
307106991310,2cyclictest1247-21mta-sts-daemon00:30:090
5670142120,2sleep30-21swapper/322:25:023
3153791120,2phc2sys0-21swapper/321:00:103
3153791120,1phc2sys0-21swapper/323:03:183
3153791120,1phc2sys0-21swapper/321:21:233
3153791120,1phc2sys0-21swapper/320:49:083
30710899129,1cyclictest0-21swapper/219:35:212
307108991210,1cyclictest0-21swapper/220:40:172
30710899120,7cyclictest0-21swapper/220:15:092
30710899120,6cyclictest0-21swapper/219:30:102
30710799128,2cyclictest0-21swapper/119:10:021
307107991210,1cyclictest0-21swapper/120:05:021
3153791113,1phc2sys0-21swapper/323:42:303
3153791112,2phc2sys0-21swapper/300:21:313
3153791111,2phc2sys0-21swapper/323:35:173
3153791111,2phc2sys0-21swapper/323:15:013
3153791111,2phc2sys0-21swapper/323:15:013
3153791111,2phc2sys0-21swapper/322:00:103
3153791111,2phc2sys0-21swapper/320:40:023
3153791111,2phc2sys0-21swapper/319:55:223
3153791110,3phc2sys0-21swapper/323:05:103
3153791110,2phc2sys0-21swapper/323:51:363
3153791110,2phc2sys0-21swapper/322:35:173
3153791110,1phc2sys0-21swapper/321:35:573
3153791110,1phc2sys0-21swapper/320:34:413
3153791110,1phc2sys0-21swapper/319:49:413
3153791110,1phc2sys0-21swapper/319:27:213
3153791110,1phc2sys0-21swapper/300:31:243
30710899119,1cyclictest0-21swapper/220:50:192
3153791101,2phc2sys0-21swapper/322:45:073
3153791101,2phc2sys0-21swapper/320:05:163
3153791100,4phc2sys0-21swapper/320:15:093
3153791100,2phc2sys0-21swapper/323:28:033
3153791100,2phc2sys0-21swapper/322:13:273
3153791100,2phc2sys0-21swapper/321:05:153
3153791100,2phc2sys0-21swapper/320:55:013
3153791100,2phc2sys0-21swapper/319:15:033
3153791100,2phc2sys0-21swapper/300:03:353
30710899101,6cyclictest0-21swapper/219:10:012
30710699100,6cyclictest0-21swapper/019:10:020
315379193,2phc2sys0-21swapper/323:45:183
315379190,2phc2sys0-21swapper/321:45:033
315379190,2phc2sys0-21swapper/319:50:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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