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2026-08-16 - 12:33
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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 Sun Aug 16, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
328311621070,2sleep30-21swapper/323:05:183
30152302500,1sleep10-21swapper/119:50:191
33258792290,2sleep30-21swapper/323:34:203
2967779992417,5cyclictest3192906-21kworker/u16:0-rpciod22:40:021
2967778992416,4cyclictest0-21swapper/023:45:020
2967779992219,2cyclictest3422713-21dump-pmu-power00:40:011
2967779992219,2cyclictest3259635-21/usr/sbin/munin22:50:021
2967779992216,2cyclictest69250irq/121-eno123:00:171
2967779992215,3cyclictest3166594-21kthreadcore21:45:191
2967778992211,6cyclictest0-21swapper/021:10:100
2967780992118,1cyclictest0-21swapper/223:20:012
2967779992118,2cyclictest3068607-21gmain20:35:011
3240591200,5phc2sys0-21swapper/323:24:563
2967779992017,2cyclictest3333843-21systemd-run23:40:021
2967779992016,2cyclictest664-21dbus-daemon19:25:031
2967779992014,2cyclictest0-21swapper/122:45:021
2967779992011,4cyclictest3187058-21kthreadcore22:00:211
2967779992011,4cyclictest0-21swapper/120:40:011
296777899201,17cyclictest0-21swapper/021:45:010
2967778992011,5cyclictest759-1atopacctd22:55:150
2967778992011,4cyclictest3297090-21cpu23:15:140
3240591191,5phc2sys0-21swapper/320:25:003
3240591190,3phc2sys0-21swapper/319:50:023
296777999197,3cyclictest1300-21mta-sts-daemon23:08:171
2967779991916,2cyclictest3126333-21/usr/sbin/munin21:20:021
2967779991916,2cyclictest0-21swapper/121:40:021
2967779991916,2cyclictest0-21swapper/100:30:011
2967779991915,2cyclictest0-21swapper/123:50:021
2967779991911,3cyclictest0-21swapper/121:55:461
296777899199,6cyclictest0-21swapper/021:15:180
296777899199,5cyclictest0-21swapper/022:40:210
296777899198,6cyclictest0-21swapper/022:14:560
2967778991916,2cyclictest3415282-21dump-pmu-power00:35:010
2967778991910,4cyclictest0-21swapper/023:35:020
2967778991910,1cyclictest3407539-21ssh00:29:570
1157598190,4rtkit-daemon1309-21mta-sts-daemon19:23:270
3240591180,9phc2sys0-21swapper/320:04:563
2967780991816,1cyclictest0-21swapper/221:10:022
2967780991816,1cyclictest0-21swapper/200:00:022
2967780991815,1cyclictest0-21swapper/222:15:012
2967780991815,1cyclictest0-21swapper/219:40:022
2967780991815,1cyclictest0-21swapper/219:20:012
296778099180,4cyclictest29830622sleep219:24:562
2967779991815,2cyclictest0-21swapper/122:35:021
2967779991815,2cyclictest0-21swapper/121:25:031
2967779991815,2cyclictest0-21swapper/100:00:021
2967779991810,3cyclictest0-21swapper/123:51:531
2967778991816,1cyclictest676-21mta-sts-daemon21:34:580
2967778991815,2cyclictest3286727-21latency23:05:210
2967778991815,2cyclictest268-21systemd-journal00:00:010
2967778991814,2cyclictest0-21swapper/023:55:020
2967778991814,2cyclictest0-21swapper/021:05:020
2967778991811,3cyclictest3111377-21diskmemload23:04:410
3240591170,1phc2sys0-21swapper/321:44:563
31407472171,6sleep30-21swapper/321:29:563
2967780991715,1cyclictest0-21swapper/222:20:012
2967780991715,1cyclictest0-21swapper/200:20:032
2967780991714,1cyclictest0-21swapper/219:10:262
296777999178,7cyclictest0-21swapper/123:30:021
2967779991714,2cyclictest3044814-21fschecks_time20:15:151
2967779991714,2cyclictest0-21swapper/122:20:021
2967779991714,2cyclictest0-21swapper/100:20:011
2967779991713,3cyclictest2991540-21kthreadcore19:30:201
296777899179,1cyclictest3392064-21ssh00:17:530
296777899178,5cyclictest0-21swapper/021:45:240
2967778991715,1cyclictest3062295-21systemd-run20:30:010
2967778991714,2cyclictest3400356-21/usr/sbin/munin00:25:010
2967778991714,2cyclictest3385504-21systemd-run00:15:010
2967778991714,2cyclictest3255884-21kthreadcore22:45:200
2967778991714,2cyclictest3141173-21apt-config21:30:020
2967778991714,2cyclictest268-21systemd-journal20:25:000
2967778991711,5cyclictest0-21swapper/022:00:210
3240591160,2phc2sys0-21swapper/323:54:043
2967780991614,1cyclictest0-21swapper/200:25:132
2967780991613,1cyclictest0-21swapper/223:22:552
2967780991613,1cyclictest0-21swapper/222:40:132
2967780991613,1cyclictest0-21swapper/221:50:222
2967780991613,1cyclictest0-21swapper/220:35:212
296777999167,4cyclictest0-21swapper/123:35:011
296777999167,4cyclictest0-21swapper/123:25:011
2967779991614,1cyclictest2967776-21cyclictest20:50:011
2967779991613,2cyclictest3364999-21kthreadcore00:00:201
2967779991613,2cyclictest3171753-21sed21:50:161
2967779991613,2cyclictest2977149-21systemd19:20:011
2967779991613,2cyclictest1-21systemd21:20:241
2967779991612,3cyclictest3244602-21kworker/u16:3+nfsiod23:15:341
2967779991611,4cyclictest2974097-21munin-node23:13:351
2967779991611,2cyclictest1307-21mta-sts-daemon22:06:421
2967779991610,3cyclictest0-21swapper/122:10:151
296777899168,4cyclictest0-21swapper/023:20:210
296777899167,5cyclictest0-21swapper/022:25:120
296777899163,8cyclictest3194661-21cat22:05:170
2967778991614,1cyclictest3173458-21kthreadcore21:50:190
2967778991613,2cyclictest3127006-21sh21:20:150
2967778991613,2cyclictest3099053-21unin-run21:00:010
2967778991613,2cyclictest3092887-21munin-run20:55:010
2967778991613,2cyclictest2976394-21fschecks_count19:15:050
2967778991613,2cyclictest0-21swapper/021:40:020
2967778991612,3cyclictest2992367-21kthreadcore19:30:200
2967778991612,1cyclictest1306-21mta-sts-daemon21:55:360
296777899161,14cyclictest0-21swapper/020:15:190
3240591153,2phc2sys0-21swapper/323:29:403
3240591150,3phc2sys0-21swapper/321:34:583
3240591150,3phc2sys0-21swapper/321:21:313
3240591150,2phc2sys0-21swapper/322:55:383
3240591150,2phc2sys0-21swapper/322:02:483
3240591150,2phc2sys0-21swapper/319:30:273
3240591150,2phc2sys0-21swapper/300:01:073
2967780991513,1cyclictest0-21swapper/223:35:022
2967780991513,1cyclictest0-21swapper/222:55:022
2967780991513,1cyclictest0-21swapper/222:00:212
2967780991513,1cyclictest0-21swapper/219:25:032
2967780991512,2cyclictest0-21swapper/223:38:292
2967780991512,1cyclictest0-21swapper/223:10:182
2967780991512,1cyclictest0-21swapper/222:23:502
2967780991512,1cyclictest0-21swapper/220:35:012
2967780991512,1cyclictest0-21swapper/220:15:142
2967780991512,1cyclictest0-21swapper/200:30:262
296777999158,3cyclictest3215996-21idleruntime22:20:171
2967779991512,2cyclictest3112263-21fschecks_count21:10:151
2967779991512,2cyclictest3051172-21sort20:20:151
2967779991512,2cyclictest2967776-21cyclictest22:50:201
2967779991511,3cyclictest3269742-21kthreadcore22:55:201
2967779991511,3cyclictest3159746-21kthreadcore21:40:171
2967779991511,3cyclictest3057430-21irqcore20:25:211
296777899159,3cyclictest3111377-21diskmemload23:49:290
296777899159,3cyclictest3111377-21diskmemload22:34:240
296777899156,5cyclictest3241843-21kthreadcore22:35:210
2967778991513,1cyclictest2967776-21cyclictest23:26:080
2967778991512,2cyclictest3364193-21sh00:00:160
2967778991512,2cyclictest3291026-21kthreadcore23:10:180
2967778991512,2cyclictest3216074-21if_err_eno122:20:170
2967778991512,2cyclictest3212191-21kthreadcore22:15:200
2967778991512,2cyclictest3043894-21aten_repower_cu20:14:570
2967778991512,2cyclictest0-21swapper/021:10:020
3240591149,2phc2sys0-21swapper/320:27:523
3240591141,6phc2sys0-21swapper/319:09:583
3240591141,3phc2sys0-21swapper/322:34:583
3240591140,4phc2sys0-21swapper/323:42:443
3240591140,4phc2sys0-21swapper/323:39:583
3240591140,4phc2sys0-21swapper/322:54:583
3240591140,3phc2sys0-21swapper/322:18:313
3240591140,2phc2sys0-21swapper/323:12:403
3240591140,2phc2sys0-21swapper/300:13:433
2967780991412,1cyclictest0-21swapper/223:25:132
2967780991412,1cyclictest0-21swapper/223:00:012
2967780991412,1cyclictest0-21swapper/221:30:032
2967780991412,1cyclictest0-21swapper/219:55:032
2967780991412,1cyclictest0-21swapper/200:24:152
2967780991411,1cyclictest0-21swapper/222:45:182
2967780991411,1cyclictest0-21swapper/222:32:582
2967780991411,1cyclictest0-21swapper/221:19:062
2967780991411,1cyclictest0-21swapper/220:45:222
2967780991411,1cyclictest0-21swapper/219:40:222
2967780991411,1cyclictest0-21swapper/200:36:192
2967780991411,1cyclictest0-21swapper/200:05:222
2967780991411,1cyclictest0-21swapper/200:00:182
2967780991410,2cyclictest0-21swapper/221:21:262
2967780991410,2cyclictest0-21swapper/219:45:142
2967780991410,2cyclictest0-21swapper/200:14:522
296777999149,4cyclictest1300-21mta-sts-daemon23:41:211
296777999149,4cyclictest11574-21rtkit-daemon19:38:491
296777999148,5cyclictest1306-21mta-sts-daemon19:48:021
296777999148,5cyclictest1306-21mta-sts-daemon00:10:041
296777999145,2cyclictest0-21swapper/120:55:131
296777999144,2cyclictest2973770-21awk19:15:011
2967779991412,1cyclictest1306-21mta-sts-daemon20:00:161
2967779991411,2cyclictest664-21dbus-daemon20:00:001
2967779991411,2cyclictest664-21dbus-daemon20:00:001
2967779991411,2cyclictest3409642-21kthreadcore00:30:191
2967779991411,2cyclictest3396341-21kthreadcore00:20:201
2967779991411,2cyclictest3148488-21aten_repower_cu21:34:591
2967779991411,2cyclictest3110414-21runrttasks21:05:211
2967779991411,2cyclictest3080691-21cron20:45:011
2967779991411,2cyclictest3034882-21kthreadcore20:05:191
2967779991411,2cyclictest0-21swapper/122:25:161
2967779991410,3cyclictest3244602-21kworker/u16:3+nfsiod00:06:341
2967779991410,3cyclictest3040935-21kthreadcore20:10:191
2967779991410,3cyclictest2985301-21kthreadcore19:25:181
296777899149,4cyclictest0-21swapper/022:50:200
296777899145,3cyclictest3375762-21memory00:05:230
296777899141,8cyclictest3021842-21cat19:55:190
296777899141,8cyclictest3021842-21cat19:55:190
296777899141,8cyclictest268-21systemd-journal19:28:240
2967778991412,1cyclictest11574-21rtkit-daemon20:03:210
2967778991411,2cyclictest3327498-21irqcore23:35:170
2967778991411,2cyclictest3000601-21mailstats19:35:240
2967778991411,2cyclictest2967776-21cyclictest20:45:240
2967778991411,2cyclictest268-21systemd-journal19:52:250
2967778991411,2cyclictest1306-21mta-sts-daemon20:05:240
2967778991411,2cyclictest11574-21rtkit-daemon20:36:230
2967778991410,3cyclictest3005130-21kthreadcore19:40:200
2967778991410,3cyclictest2968005-21aten_repower_fr19:10:070
2967778991410,2cyclictest0-21swapper/020:45:020
3240591131,4phc2sys0-21swapper/300:24:543
3240591130,3phc2sys0-21swapper/323:59:583
3240591130,3phc2sys0-21swapper/322:14:353
3240591130,2phc2sys0-21swapper/321:00:153
3240591130,2phc2sys0-21swapper/320:30:493
3240591130,2phc2sys0-21swapper/319:15:243
3240591130,2phc2sys0-21swapper/300:18:063
3240591130,1phc2sys0-21swapper/322:21:513
3240591130,1phc2sys0-21swapper/300:09:543
296778099131,7cyclictest3118380-21taskset21:14:112
2967780991311,1cyclictest0-21swapper/223:50:232
2967780991311,1cyclictest0-21swapper/223:00:142
2967780991311,1cyclictest0-21swapper/221:55:152
2967780991311,1cyclictest0-21swapper/221:40:122
2967780991311,1cyclictest0-21swapper/221:34:242
2967780991311,1cyclictest0-21swapper/220:55:162
2967780991311,1cyclictest0-21swapper/219:55:222
2967780991311,1cyclictest0-21swapper/219:55:222
2967780991310,1cyclictest0-21swapper/223:45:192
2967780991310,1cyclictest0-21swapper/223:40:172
2967780991310,1cyclictest0-21swapper/223:05:262
2967780991310,1cyclictest0-21swapper/222:25:192
2967780991310,1cyclictest0-21swapper/221:35:222
2967780991310,1cyclictest0-21swapper/221:00:162
2967780991310,1cyclictest0-21swapper/220:50:122
2967780991310,1cyclictest0-21swapper/220:25:242
2967779991310,2cyclictest3099452-21cpuspeed_turbos21:00:141
2967779991310,2cyclictest3087279-21cpuspeed_turbos20:50:121
2967779991310,2cyclictest3002635-21sort19:40:181
296777899139,3cyclictest3064572-21kthreadcore20:30:190
296777899139,1cyclictest491rcuog/219:46:330
296777899133,5cyclictest0-21swapper/000:36:550
3240591121,2phc2sys0-21swapper/321:10:283
3240591121,2phc2sys0-21swapper/321:09:563
3240591121,2phc2sys0-21swapper/300:27:203
3240591120,3phc2sys0-21swapper/321:45:193
3240591120,2phc2sys0-21swapper/323:45:373
3240591120,2phc2sys0-21swapper/323:01:593
3240591120,2phc2sys0-21swapper/322:06:443
3240591120,1phc2sys0-21swapper/321:58:313
3240591120,1phc2sys0-21swapper/321:35:483
3240591120,1phc2sys0-21swapper/319:44:293
296778099129,1cyclictest0-21swapper/222:35:212
296778099129,1cyclictest0-21swapper/221:45:102
296778099129,1cyclictest0-21swapper/220:10:172
296778099129,1cyclictest0-21swapper/219:31:242
2967780991210,1cyclictest0-21swapper/220:20:142
2967780991210,1cyclictest0-21swapper/220:00:182
296777899125,4cyclictest664-21dbus-daemon19:10:020
29674872121,6sleep20-21swapper/219:09:572
3240591112,3phc2sys0-21swapper/320:35:253
3240591111,2phc2sys0-21swapper/320:55:023
3240591111,1phc2sys0-21swapper/319:25:023
3240591110,2phc2sys0-21swapper/322:40:273
3240591110,2phc2sys0-21swapper/320:58:253
3240591110,2phc2sys0-21swapper/320:16:233
3240591110,1phc2sys0-21swapper/320:12:583
296778099119,1cyclictest0-21swapper/222:05:152
296778099119,1cyclictest0-21swapper/220:05:162
296778099118,1cyclictest0-21swapper/220:40:242
1157598110,3rtkit-daemon1309-21mta-sts-daemon19:08:221
3240591101,2phc2sys0-21swapper/320:48:413
3240591101,2phc2sys0-21swapper/319:50:223
3240591101,2phc2sys0-21swapper/319:25:143
3240591100,2phc2sys0-21swapper/322:46:523
3240591100,2phc2sys0-21swapper/322:35:423
3240591100,2phc2sys0-21swapper/322:28:493
3240591100,2phc2sys0-21swapper/321:54:563
3240591100,2phc2sys0-21swapper/321:19:383
3240591100,2phc2sys0-21swapper/320:06:413
3240591100,2phc2sys0-21swapper/319:35:123
3240591100,2phc2sys0-21swapper/300:39:553
3240591100,2phc2sys0-21swapper/300:32:063
324059190,2phc2sys0-21swapper/323:15:063
324059190,2phc2sys0-21swapper/320:40:073
324059190,2phc2sys0-21swapper/319:56:473
324059190,2phc2sys0-21swapper/319:56:473
324059190,2phc2sys0-21swapper/319:10:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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