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2026-08-12 - 09:20
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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 Wed Aug 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
415974721700,2sleep30-21swapper/322:10:023
7502721110,2sleep30-21swapper/323:20:333
1271222740,1sleep0127120-21ssh23:55:450
508412730,1sleep050845-21tr23:05:310
41138342390,2sleep30-21swapper/321:36:233
3922283992724,2cyclictest4159672-21grep22:10:021
3922282992320,2cyclictest3985515-21munin-plugin-st20:00:010
3922282992320,2cyclictest0-21swapper/022:25:010
3922282992314,6cyclictest38274-21timerwakeupswit22:55:350
3922284992219,1cyclictest0-21swapper/223:05:292
3922283992219,2cyclictest4122662-21grep21:45:021
3922282992219,2cyclictest0-21swapper/023:45:020
3922282992218,3cyclictest0-21swapper/021:55:010
3922282992212,5cyclictest714-21gdbus21:05:020
3922284992118,1cyclictest0-21swapper/223:25:012
3922283992118,2cyclictest91583-21cron23:35:011
3922283992118,2cyclictest4167050-21grep22:15:021
3922283992118,2cyclictest188472-21gpgconf00:40:011
3922282992115,5cyclictest17450-21cron22:45:000
3922282992115,2cyclictest4073679-21grep21:10:300
3922284992017,1cyclictest0-21swapper/223:45:022
3922284992017,1cyclictest0-21swapper/222:25:002
3922284992017,1cyclictest0-21swapper/222:05:012
3922284992017,1cyclictest0-21swapper/200:20:012
3922283992017,2cyclictest4174469-21sh22:20:021
3922283992017,2cyclictest4034301-21sh20:40:011
392228299208,6cyclictest0-21swapper/021:35:070
3922282992017,2cyclictest3942711-21grep19:25:000
392228299201,13cyclictest3997963-21apt-get20:10:080
3922284991917,1cyclictest0-21swapper/220:00:012
3922284991916,1cyclictest0-21swapper/220:30:022
392228499191,11cyclictest0-21swapper/220:10:022
3922283991916,2cyclictest4085534-21dump-pmu-power21:20:001
3922283991914,3cyclictest168673-21kthreadcore00:25:281
392228299199,5cyclictest0-21swapper/023:30:230
392228299193,3cyclictest77037-21latency_hist23:25:020
3922282991916,2cyclictest0-21swapper/021:05:260
3922282991915,3cyclictest4100336-21systemd21:30:010
3922282991911,7cyclictest92372-21cpuspeed_turbos23:35:230
3922282991911,2cyclictest1157598rtkit-daemon00:30:380
3922282991910,6cyclictest4100650-21apt-get21:30:070
3922283991816,1cyclictest1-21systemd21:55:011
3922283991815,2cyclictest60033-21phc2sys23:10:331
3922283991815,2cyclictest48602-21sh23:05:271
3922283991812,4cyclictest0-21swapper/123:55:011
392228299187,5cyclictest152277-21cut00:15:280
392228299183,1cyclictest191rcu_preempt22:31:080
3922282991815,2cyclictest4129818-21cron21:50:010
3922282991815,2cyclictest121164-21cron23:55:000
3922282991815,2cyclictest0-21swapper/020:30:030
3922282991814,3cyclictest3994712-21kthreadcore20:05:370
3922282991811,2cyclictest17750irq/127-ahci[0000:00:17.0]20:05:010
3922282991810,6cyclictest0-21swapper/000:10:020
3240591180,2phc2sys0-21swapper/323:36:263
3240591180,2phc2sys0-21swapper/323:30:163
1157598180,2rtkit-daemon341rcuc/119:24:331
3922284991715,1cyclictest0-21swapper/221:35:012
3922284991714,1cyclictest0-21swapper/222:35:292
3922283991714,2cyclictest684-21systemd-logind19:20:011
3922283991714,2cyclictest4130046-21latency_hist21:50:021
3922283991714,2cyclictest4101284-21df_inode21:30:251
3922283991714,2cyclictest4100320-21idleruntime-cro21:30:011
3922283991714,2cyclictest3928605-21gltestperf19:15:021
3922283991714,2cyclictest23269-21grep22:45:331
3922283991714,2cyclictest0-21swapper/119:50:021
3922283991712,3cyclictest688-21in:imuxsock22:25:021
3922283991712,3cyclictest108233-21tr23:45:301
392228299179,4cyclictest0-21swapper/022:15:010
392228299177,8cyclictest4185014-21tr22:25:260
392228299177,6cyclictest136123-21munin-run00:05:010
392228299172,5cyclictest491rcuog/223:03:380
3922282991714,2cyclictest759-1atopacctd22:05:290
3922282991714,2cyclictest664-21dbus-daemon21:00:020
3922282991714,2cyclictest3950045-21irqcore19:30:270
3922282991710,6cyclictest0-21swapper/022:05:030
3240591170,2phc2sys0-21swapper/322:15:293
16586221714,1sleep20-21swapper/200:25:022
1157598170,2rtkit-daemon1306-21mta-sts-daemon20:28:021
392228499161,8cyclictest0-21swapper/223:25:072
3922284991614,1cyclictest0-21swapper/223:40:022
3922284991614,1cyclictest0-21swapper/220:00:322
3922284991613,1cyclictest0-21swapper/221:22:022
3922284991613,1cyclictest0-21swapper/220:15:022
3922284991613,1cyclictest0-21swapper/219:35:362
3922284991613,1cyclictest0-21swapper/219:25:322
3922284991613,1cyclictest0-21swapper/219:10:022
3922284991613,1cyclictest0-21swapper/200:25:242
392228399166,3cyclictest501rcuop/223:56:521
392228399166,3cyclictest501rcuop/200:09:221
392228399163,10cyclictest501rcuop/223:15:241
3922283991614,1cyclictest1307-21mta-sts-daemon22:35:021
3922283991613,2cyclictest690-21rs:main1
3922283991613,2cyclictest4059714-21gltestperf21:00:261
3922283991613,2cyclictest3922280-21cyclictest22:00:311
3922283991613,2cyclictest166137-21sh00:25:021
3922283991613,2cyclictest13184-21kthreadcore22:40:271
3922283991613,2cyclictest0-21swapper/122:00:031
3922283991613,2cyclictest0-21swapper/122:00:031
3922283991613,2cyclictest0-21swapper/121:15:021
3922283991612,3cyclictest759-1atopacctd19:50:271
3922283991612,3cyclictest4015437-21runrttasks20:20:351
3922283991612,3cyclictest3981156-21kthreadcore19:55:291
3922283991612,3cyclictest3922280-21cyclictest22:35:301
3922283991612,3cyclictest35802-21kthreadcore22:55:301
3922283991611,2cyclictest3961373-21aten_repower_vo19:40:201
392228299166,5cyclictest0-21swapper/022:35:070
392228299165,6cyclictest4169615-21grep22:15:300
392228299162,1cyclictest601rcuop/320:35:380
3922282991613,2cyclictest69700-21/usr/sbin/munin23:20:020
3922282991613,2cyclictest672-21polkitd21:45:020
3922282991613,2cyclictest4144932-21sh22:00:020
3922282991613,2cyclictest4144932-21sh22:00:020
3922282991613,2cyclictest3975633-21kthreadcore19:50:260
3922282991613,2cyclictest1306-21mta-sts-daemon19:45:050
3922282991613,2cyclictest0-21swapper/000:40:010
392228299161,2cyclictest168649-21kthreadcore00:25:280
3922282991612,3cyclictest4026022-21kthreadcore20:30:300
3922282991610,2cyclictest491rcuog/221:17:210
3240591168,2phc2sys0-21swapper/323:48:083
3240591160,2phc2sys0-21swapper/323:00:223
3240591160,2phc2sys0-21swapper/321:55:043
3240591160,2phc2sys0-21swapper/321:55:043
392228499151,5cyclictest0-21swapper/222:45:062
3922284991513,1cyclictest0-21swapper/223:10:362
3922284991513,1cyclictest0-21swapper/200:40:012
3922284991512,1cyclictest0-21swapper/223:45:332
3922284991512,1cyclictest0-21swapper/223:33:142
3922284991512,1cyclictest0-21swapper/223:20:022
3922284991512,1cyclictest0-21swapper/223:00:272
3922284991512,1cyclictest0-21swapper/223:00:012
3922284991512,1cyclictest0-21swapper/222:35:012
3922284991512,1cyclictest0-21swapper/221:50:222
3922284991512,1cyclictest0-21swapper/220:58:462
3922284991512,1cyclictest0-21swapper/219:45:282
3922284991511,2cyclictest0-21swapper/223:50:372
392228399159,5cyclictest759-1atopacctd20:45:191
392228399154,3cyclictest501rcuop/223:03:291
3922283991512,2cyclictest4108469-21cut21:35:241
3922283991512,2cyclictest100809-21kernelversion23:40:291
3922283991512,2cyclictest0-21swapper/100:05:021
392228399151,13cyclictest3991601-21idleruntime-cro20:05:011
3922283991511,3cyclictest3943313-21cpuspeed_turbos19:25:241
3922283991511,3cyclictest1300-21mta-sts-daemon00:17:401
392228299152,6cyclictest11574-21rtkit-daemon20:44:520
392228299151,8cyclictest4009896-21cat20:20:020
392228299151,5cyclictest3936639-21systemctl19:20:000
3922282991512,2cyclictest672-21polkitd20:50:030
3922282991512,2cyclictest60569-21unixbench_multi23:10:360
3922282991512,2cyclictest4091097-21mailstats21:20:360
3922282991512,2cyclictest3959661-21kthreadcore19:35:300
3922282991512,2cyclictest3922280-21cyclictest23:45:320
3922282991512,2cyclictest19495-21kthreadcore22:45:280
3922282991512,2cyclictest144194-21cpuspeed_turbos00:10:230
3922282991512,2cyclictest0-21swapper/022:55:010
3922282991511,3cyclictest4048344-21kthreadcore20:50:280
3922282991511,3cyclictest4012917-21kthreadcore20:20:290
3922282991510,3cyclictest0-21swapper/023:30:030
3240591152,2phc2sys0-21swapper/322:11:003
3240591151,6phc2sys0-21swapper/320:50:073
3240591151,3phc2sys0-21swapper/323:44:323
3240591151,2phc2sys0-21swapper/323:06:393
3240591150,3phc2sys0-21swapper/322:05:013
3240591150,2phc2sys0-21swapper/323:51:413
3240591150,2phc2sys0-21swapper/322:45:253
3240591150,1phc2sys0-21swapper/320:30:433
392228499147,3cyclictest0-21swapper/220:15:082
3922284991412,1cyclictest0-21swapper/221:55:292
3922284991412,1cyclictest0-21swapper/221:55:292
3922284991412,1cyclictest0-21swapper/221:00:262
3922284991412,1cyclictest0-21swapper/220:45:022
3922284991412,1cyclictest0-21swapper/219:25:022
3922284991411,1cyclictest0-21swapper/222:50:282
3922284991411,1cyclictest0-21swapper/221:35:272
3922284991411,1cyclictest0-21swapper/221:25:242
3922284991411,1cyclictest0-21swapper/220:50:262
3922284991411,1cyclictest0-21swapper/219:15:252
3922284991410,2cyclictest0-21swapper/223:55:352
3922284991410,2cyclictest0-21swapper/222:13:442
392228499140,1cyclictest0-21swapper/221:44:492
392228399149,3cyclictest0-21swapper/119:35:071
392228399149,2cyclictest1306-21mta-sts-daemon22:25:081
392228399147,3cyclictest4086135-21ssh21:20:221
3922283991411,2cyclictest93277-21irqrtprio23:35:271
3922283991411,2cyclictest759-1atopacctd20:15:291
3922283991411,2cyclictest72953-21kthreadcore23:20:281
3922283991411,2cyclictest4054006-21sed20:55:281
3922283991411,2cyclictest4035606-21irqcore20:40:251
392228399141,12cyclictest4022483-21apt-get20:30:071
3922283991411,2cyclictest4000750-21kthreadcore20:10:301
3922283991411,2cyclictest3953566-21kthreadcore19:30:291
3922283991411,2cyclictest3922293-21/usr/sbin/munin19:10:021
3922283991411,2cyclictest1300-21mta-sts-daemon22:50:041
3922283991410,3cyclictest759-1atopacctd20:50:271
392228399140,5cyclictest1309-21mta-sts-daemon23:25:151
392228299147,2cyclictest17750irq/127-ahci[0000:00:17.0]19:30:020
3922282991411,2cyclictest3961556-21cpuspeed_turbos19:40:240
3922282991411,2cyclictest162088-21kthreadcore00:20:290
3240591141,2phc2sys0-21swapper/320:25:083
3240591140,2phc2sys0-21swapper/323:12:413
3240591140,2phc2sys0-21swapper/321:11:113
3240591140,2phc2sys0-21swapper/300:36:533
41365082130,5sleep30-21swapper/321:53:043
392228499132,7cyclictest0-21swapper/222:05:062
3922284991311,1cyclictest0-21swapper/222:40:222
3922284991311,1cyclictest0-21swapper/221:10:282
3922284991311,1cyclictest0-21swapper/200:15:022
3922284991310,1cyclictest0-21swapper/222:25:232
3922284991310,1cyclictest0-21swapper/222:15:232
3922284991310,1cyclictest0-21swapper/221:45:242
3922284991310,1cyclictest0-21swapper/220:23:142
3922284991310,1cyclictest0-21swapper/219:40:282
3922284991310,1cyclictest0-21swapper/219:30:242
3922284991310,1cyclictest0-21swapper/200:30:272
3922284991310,1cyclictest0-21swapper/200:05:312
392228399139,3cyclictest4068855-21kthreadcore21:05:311
392228399139,3cyclictest3992199-21cpuspeed_turbos20:05:311
392228399133,4cyclictest0-21swapper/100:30:071
3240591130,2phc2sys0-21swapper/322:55:213
3240591130,2phc2sys0-21swapper/321:43:343
3240591130,1phc2sys0-21swapper/322:22:383
3240591130,1phc2sys0-21swapper/321:15:133
3240591130,1phc2sys0-21swapper/300:01:113
392228499129,1cyclictest0-21swapper/220:36:102
392228499129,1cyclictest0-21swapper/220:30:072
392228499121,4cyclictest0-21swapper/221:20:022
3922284991210,1cyclictest0-21swapper/220:45:302
3922284991210,1cyclictest0-21swapper/219:50:062
3922284991210,1cyclictest0-21swapper/219:10:292
3922284991210,1cyclictest0-21swapper/200:00:032
392228299127,3cyclictest0-21swapper/019:10:030
392228299122,1cyclictest0-21swapper/019:10:250
3240591121,2phc2sys0-21swapper/320:05:363
3240591120,2phc2sys0-21swapper/321:30:043
3240591120,1phc2sys0-21swapper/321:05:073
3240591120,1phc2sys0-21swapper/319:59:563
392228499119,1cyclictest0-21swapper/221:05:282
3240591113,2phc2sys0-21swapper/319:30:293
3240591112,2phc2sys0-21swapper/300:34:253
3240591111,4phc2sys0-21swapper/321:20:093
3240591111,2phc2sys0-21swapper/322:26:483
3240591110,2phc2sys0-21swapper/323:55:293
3240591110,2phc2sys0-21swapper/321:29:483
3240591110,2phc2sys0-21swapper/319:20:073
3240591110,2phc2sys0-21swapper/319:10:063
3240591110,1phc2sys0-21swapper/320:59:583
3240591110,1phc2sys0-21swapper/320:41:393
3240591110,1phc2sys0-21swapper/319:52:373
3240591101,4phc2sys0-21swapper/320:45:083
3240591101,3phc2sys0-21swapper/300:25:023
3240591101,2phc2sys0-21swapper/320:00:273
3240591101,2phc2sys0-21swapper/319:05:253
3240591101,2phc2sys0-21swapper/300:30:003
3240591101,2phc2sys0-21swapper/300:17:183
3240591101,2phc2sys0-21swapper/300:05:353
3240591100,3phc2sys0-21swapper/322:33:303
3240591100,2phc2sys0-21swapper/323:25:073
3240591100,2phc2sys0-21swapper/322:50:323
3240591100,2phc2sys0-21swapper/319:50:013
3240591100,2phc2sys0-21swapper/319:30:013
3240591100,2phc2sys0-21swapper/300:13:413
3240591100,1phc2sys0-21swapper/321:03:193
324059191,2phc2sys0-21swapper/323:16:103
324059190,2phc2sys0-21swapper/322:42:023
324059190,2phc2sys0-21swapper/322:35:093
324059190,2phc2sys0-21swapper/321:45:073
324059190,2phc2sys0-21swapper/320:35:103
324059190,2phc2sys0-21swapper/320:20:063
324059190,2phc2sys0-21swapper/320:15:253
324059190,2phc2sys0-21swapper/319:43:043
324059190,2phc2sys0-21swapper/319:35:303
324059190,2phc2sys0-21swapper/319:15:033
324059190,1phc2sys0-21swapper/320:10:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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