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2025-11-29 - 13:27
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sat Nov 29, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260514699231,15cyclictest2807059-21taskset21:40:013
2605146992118,1cyclictest0-21swapper/323:30:013
2605146992118,1cyclictest0-21swapper/322:05:003
260514699211,15cyclictest3009986-21taskset23:45:123
2605146992017,1cyclictest0-21swapper/321:05:153
2605146992014,3cyclictest2782631-21turbostat21:25:003
260514699201,13cyclictest2968889-21taskset23:19:563
2605146991916,1cyclictest0-21swapper/321:15:003
260514699191,13cyclictest3017878-21chrt23:50:023
260514699191,13cyclictest2904221-21taskset22:40:003
260514699182,6cyclictest2823205-21turbostat21:50:003
2605146991816,1cyclictest0-21swapper/322:10:193
2605146991815,1cyclictest0-21swapper/323:00:243
2605146991815,1cyclictest0-21swapper/321:15:213
2605146991815,1cyclictest0-21swapper/320:45:173
2605146991815,1cyclictest0-21swapper/319:50:003
260514699181,13cyclictest3066053-21turbostat00:20:003
260514699181,13cyclictest2953157-21taskset23:10:133
260514699181,12cyclictest3042063-21taskset00:05:003
260514699178,6cyclictest29520352sleep323:08:513
2605146991714,1cyclictest0-21swapper/322:35:003
2605146991714,1cyclictest0-21swapper/319:55:013
2605146991714,1cyclictest0-21swapper/319:15:013
2605146991714,1cyclictest0-21swapper/300:30:003
260514699171,13cyclictest2888107-21turbostat22:30:003
260514699171,12cyclictest3082731-21taskset00:30:123
260514699171,12cyclictest3072026-21taskset00:20:233
260514699171,12cyclictest2708277-21taskset20:29:563
260514699171,12cyclictest2682925-21turbostat20:10:003
260514699171,12cyclictest2626666-21taskset19:25:113
260514699170,15cyclictest2695511-21turbostat20:24:543
260514699170,13cyclictest2936387-21taskset22:59:563
307432921612,2sleep23074382-21systemd-run00:24:592
26200292161,2sleep00-21swapper/019:20:010
2605146991613,1cyclictest0-21swapper/322:15:153
2605146991613,1cyclictest0-21swapper/320:02:003
260514699161,12cyclictest3056136-21taskset00:10:503
260514699161,12cyclictest3032113-21taskset23:56:183
260514699161,12cyclictest2999637-21taskset23:35:313
260514699161,12cyclictest2928400-21turbostat22:54:593
260514699161,12cyclictest2880083-21sleep22:25:003
260514699161,12cyclictest2834471-21taskset21:55:163
260514699161,12cyclictest2783349-21taskset21:25:143
260514699161,12cyclictest2739464-21taskset20:52:243
260514699161,12cyclictest2726894-21taskset20:42:263
260514699161,12cyclictest2695420-21taskset20:19:143
260514699161,12cyclictest2644775-21taskset19:36:453
260514699161,11cyclictest2651214-21chrt19:40:233
260514699160,13cyclictest3009588-21taskset23:44:573
260514699160,11cyclictest2605285-21taskset19:10:013
2605146991512,1cyclictest0-21swapper/321:30:473
260514699151,12cyclictest2993383-21taskset23:34:473
260514699151,12cyclictest2714407-21chrt20:33:323
260514699151,12cyclictest2670183-21taskset19:57:463
260514699151,11cyclictest3040270-21taskset00:01:203
260514699151,11cyclictest2974769-21taskset23:20:243
260514699151,11cyclictest2904450-21taskset22:40:043
260514699151,11cyclictest2904450-21taskset22:40:043
260514699151,11cyclictest2847898-21taskset22:05:053
260514699151,11cyclictest2829828-21taskset21:51:433
260514699151,11cyclictest2812633-21taskset21:40:213
260514699151,11cyclictest2637935-21taskset19:30:213
260514699151,11cyclictest2626186-21taskset19:23:483
260514699150,12cyclictest3090816-21taskset00:35:103
260514699150,12cyclictest2720536-21chrt20:36:493
260514699150,12cyclictest2720536-21chrt20:36:493
260514699150,12cyclictest2683192-21chrt20:10:123
260514699150,11cyclictest2916609-21taskset22:45:173
260514699150,11cyclictest2916609-21taskset22:45:173
147598150,5rtkit-daemon2869474-21ntp_states22:15:210
147598150,10rtkit-daemon2626743-21fschecks_count19:25:131
2605146991411,1cyclictest0-21swapper/320:55:053
260514699141,10cyclictest2746203-21taskset21:00:063
147598140,10rtkit-daemon2828549-21ssh21:50:200
26392142131,9sleep22639020-21/usr/sbin/munin19:35:142
147598130,9rtkit-daemon2887379-21ssh22:28:141
30826932122,6sleep23082728-21apt-get00:30:122
29439392120,9sleep22943947-21ssh23:03:362
28080002121,7sleep22808803-21kthreadcore21:40:172
27829662122,5sleep02782969-21apt-get21:25:110
26265722121,8sleep22626662-21grep19:25:112
147598120,3rtkit-daemon2994189-21tail23:35:152
30160752111,7sleep23016082-21sh23:46:242
29287082110,8sleep02928712-21acpi22:55:130
28549702110,8sleep02854978-21ssh22:08:120
28019342110,7sleep22803967-21kthreadcore21:35:202
26116902111,3sleep22611363-21apt-get19:15:012
260514699118,1cyclictest0-21swapper/319:10:013
147598110,7rtkit-daemon2710009-21cat20:30:192
147598110,7rtkit-daemon22110-21packagekitd21:10:331
147598110,6rtkit-daemon1540-21sendmail-mta23:26:132
147598110,4rtkit-daemon22110-21packagekitd20:19:432
147598110,2rtkit-daemon214-21plymouthd23:03:360
147598110,2rtkit-daemon214-21plymouthd21:30:270
30816902100,1sleep00-21swapper/000:28:190
30670882107,1sleep00-21swapper/000:20:170
30425712105,2sleep13043064-21irqcore00:05:151
30094152106,2sleep13009421-21ssh23:44:361
28949632100,7sleep02894971-21ssh22:32:200
28745002100,7sleep02876493-21cut22:20:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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