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2026-05-06 - 09:14
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Wed May 06, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171472309278,20sleep10-21swapper/119:09:581
170102307276,20sleep20-21swapper/219:08:152
170082272242,19sleep00-21swapper/019:08:120
170062265233,22sleep30-21swapper/319:08:113
252652620,0sleep00-21swapper/023:15:420
11422590,0sleep20-21swapper/219:45:022
74052580,0sleep20-21swapper/200:03:202
51542560,0sleep20-21swapper/222:05:522
53492550,0sleep10-21swapper/100:01:471
144362540,0sleep30-21swapper/322:11:333
60602530,0sleep20-21swapper/221:28:192
59652200,0sleep20-21swapper/223:24:162
59652200,0sleep20-21swapper/223:24:162
48352190,0sleep10-21swapper/123:04:291
189972180,0sleep30-21swapper/321:35:293
66642170,0sleep30-21swapper/323:43:563
305772170,0sleep330583-21gltestperf23:00:153
38432140,0sleep00-21swapper/021:26:380
165772130,0sleep00-21swapper/020:15:190
1725099121,4cyclictest0-21swapper/221:56:302
137712120,0sleep30-21swapper/321:32:523
1725099110,3cyclictest275-21systemd-journal20:05:002
123492110,0sleep20-21swapper/200:05:442
1725099102,2cyclictest1-21systemd22:50:012
1725099102,1cyclictest0-21swapper/223:13:572
1725099100,3cyclictest5543-21cron23:05:002
1725099100,3cyclictest275-21systemd-journal23:35:012
1725099100,3cyclictest275-21systemd-journal20:40:012
20706291,4sleep334-21ksoftirqd/321:17:283
172549996,2cyclictest658-21snmpd21:11:103
172509992,2cyclictest9088-21cron21:50:022
172509992,2cyclictest658-21snmpd20:54:482
172509992,2cyclictest658-21snmpd19:50:262
172509992,2cyclictest658-21snmpd19:26:432
172509992,2cyclictest29871-21cat20:45:202
172509992,2cyclictest21521-21swap19:15:202
172509992,2cyclictest17058-21date21:15:152
172509992,2cyclictest14100-21rm21:52:312
172509992,2cyclictest14080-21sed22:50:172
172509992,2cyclictest11376-21ssh23:46:092
172509990,3cyclictest275-21systemd-journal23:51:042
172509990,3cyclictest275-21systemd-journal22:36:232
172509990,3cyclictest2287-21munin-run00:20:002
172509990,2cyclictest28959-21idleruntime-cro19:35:012
172549986,1cyclictest34-21ksoftirqd/300:00:003
172549985,2cyclictest658-21snmpd00:13:093
172509982,2cyclictest6632-21sh22:26:132
172509982,2cyclictest658-21snmpd22:41:292
172509982,2cyclictest658-21snmpd19:49:002
172509982,2cyclictest28777-21cat00:35:162
172509982,2cyclictest22284-21cat22:55:152
172509982,2cyclictest13307-21expr20:10:132
172509982,2cyclictest10480-21ssh23:07:092
172509982,1cyclictest0-21swapper/221:31:552
172509982,1cyclictest0-21swapper/220:26:272
172509981,3cyclictest0-21swapper/200:29:252
172509981,2cyclictest17705-21expr19:10:142
172509981,2cyclictest12788-21cat22:30:152
172509981,2cyclictest11235-21sort22:10:132
172509980,4cyclictest30521-21ssh22:21:042
172509980,3cyclictest28464-21ssh23:37:152
172509980,3cyclictest275-21systemd-journal00:14:552
172509980,2cyclictest3902-21sshd23:41:502
172509980,2cyclictest304-21systemd-udevd21:35:252
172509980,2cyclictest275-21systemd-journal21:04:552
172509980,2cyclictest27358-21sed22:00:182
172509980,2cyclictest23369-21sshd00:31:572
172459983,3cyclictest275-21systemd-journal00:20:011
13697280,0sleep10-21swapper/100:25:581
3819270,0sleep00-21swapper/021:00:150
172549975,2cyclictest34-21ksoftirqd/319:55:013
172549975,1cyclictest34-21ksoftirqd/319:40:013
172549974,2cyclictest994-21cron19:45:013
172549973,3cyclictest658-21snmpd21:41:433
172549973,3cyclictest275-21systemd-journal00:33:403
172549973,3cyclictest24171-21awk23:15:183
172549973,1cyclictest0-21swapper/323:09:023
172509972,4cyclictest0-21swapper/221:20:162
172509972,1cyclictest663-21runrttasks19:22:232
172509972,1cyclictest27715-21sh23:55:492
172509971,2cyclictest658-21snmpd21:40:142
172509970,3cyclictest29997-21ssh23:19:172
172509970,3cyclictest23736-21ssh22:17:152
172509970,2cyclictest275-21systemd-journal21:11:582
172509970,2cyclictest275-21systemd-journal20:08:382
172459976,1cyclictest22-21ksoftirqd/119:55:001
172459976,1cyclictest22-21ksoftirqd/119:30:021
172459975,1cyclictest27747-21/usr/sbin/munin22:00:191
172459973,3cyclictest658-21snmpd23:24:171
172459973,3cyclictest658-21snmpd23:24:171
172459973,3cyclictest658-21snmpd22:06:211
172459973,3cyclictest504-21dbus-daemon21:55:001
172459973,3cyclictest275-21systemd-journal23:13:401
172459973,3cyclictest275-21systemd-journal22:34:171
172459973,3cyclictest275-21systemd-journal22:18:511
172419974,2cyclictest28338-21cron20:45:000
172419973,3cyclictest275-21systemd-journal20:47:220
172419972,4cyclictest0-21swapper/022:05:130
172419972,3cyclictest504-21dbus-daemon23:40:000
172419971,4cyclictest275-21systemd-journal20:25:130
172419970,7cyclictest7363-21diskmemload22:54:480
9963260,0sleep10-21swapper/100:05:071
172549966,0cyclictest0-21swapper/321:55:293
172549966,0cyclictest0-21swapper/320:10:413
172549964,1cyclictest34-21ksoftirqd/321:00:013
172549963,2cyclictest9546-21ssh00:24:103
172549963,2cyclictest8287-21rm22:08:153
172549963,2cyclictest658-21snmpd22:31:583
172549963,2cyclictest32560-21date21:25:003
172549963,2cyclictest28255-11brltty21:08:383
172549963,2cyclictest275-21systemd-journal22:51:413
172549963,2cyclictest275-21systemd-journal19:59:563
172549963,2cyclictest25723-21ntp_offset19:25:173
172549963,2cyclictest11480-21taskset21:50:293
172549962,3cyclictest658-21snmpd23:32:323
172549962,3cyclictest658-21snmpd23:25:053
172549962,3cyclictest658-21snmpd23:22:113
172549962,3cyclictest658-21snmpd23:22:113
172549962,3cyclictest658-21snmpd23:10:233
172549962,3cyclictest658-21snmpd22:55:533
172549962,3cyclictest658-21snmpd22:26:003
172549962,3cyclictest658-21snmpd22:03:523
172549962,3cyclictest658-21snmpd20:31:063
172549962,3cyclictest658-21snmpd19:21:403
172549962,3cyclictest4137-21ntpq21:00:183
172549962,3cyclictest275-21systemd-journal21:45:383
172549962,3cyclictest27211-21expr00:15:133
172549962,3cyclictest26048-21cat23:55:143
172549962,3cyclictest20499-21cat22:35:143
172549962,3cyclictest17949-21cron00:10:003
172549962,3cyclictest17158-21expr23:50:133
172549962,3cyclictest0-21swapper/323:36:473
172549962,1cyclictest0-21swapper/323:45:193
172549962,1cyclictest0-21swapper/322:45:233
172549961,5cyclictest3155-21cups-browsed22:16:463
172549960,6cyclictest0-21swapper/322:20:003
172549960,6cyclictest0-21swapper/300:37:083
172549960,2cyclictest21275-21ntp_states19:15:183
172549960,2cyclictest20498-21memory20:25:153
172509962,3cyclictest658-21snmpd20:15:142
172509962,3cyclictest658-21snmpd00:23:182
172509962,1cyclictest7120-21taskset21:07:122
172509960,6cyclictest0-21swapper/223:25:052
172459966,0cyclictest0-21swapper/123:46:031
172459963,2cyclictest8842-21sh20:00:141
172459963,2cyclictest658-21snmpd19:46:141
172459963,2cyclictest6365-21ssh23:43:411
172459963,2cyclictest504-21dbus-daemon21:00:001
172459963,2cyclictest4604-21sh00:20:241
172459963,2cyclictest29250-21ssh23:18:431
172459963,2cyclictest2865-21grep21:45:221
172459963,2cyclictest275-21systemd-journal20:16:091
172459963,2cyclictest20216-21ssh23:32:231
172459963,2cyclictest17707-21sed21:35:161
172459963,2cyclictest16668-21ssh23:50:011
172459963,1cyclictest0-21swapper/122:25:001
172459962,3cyclictest8553-21cat21:10:131
172459962,3cyclictest658-21snmpd23:28:031
172459962,3cyclictest658-21snmpd22:59:521
172459962,3cyclictest658-21snmpd22:54:281
172459962,3cyclictest658-21snmpd22:42:251
172459962,3cyclictest658-21snmpd22:35:231
172459962,3cyclictest658-21snmpd21:30:111
172459962,3cyclictest658-21snmpd21:20:141
172459962,3cyclictest658-21snmpd20:42:331
172459962,3cyclictest658-21snmpd20:39:031
172459962,3cyclictest658-21snmpd20:28:041
172459962,3cyclictest658-21snmpd20:11:381
172459962,3cyclictest658-21snmpd19:42:171
172459962,3cyclictest658-21snmpd19:30:111
172459962,3cyclictest658-21snmpd19:16:371
172459962,3cyclictest658-21snmpd00:35:571
172459962,3cyclictest6348-21ntpq21:05:181
172459962,3cyclictest560-21gdbus20:05:011
172459962,3cyclictest5587-21hddtemp_smartct22:45:151
172459962,3cyclictest504-21dbus-daemon23:05:011
172459962,3cyclictest3779-21apt-get22:25:141
172459962,3cyclictest27072-21vmstat23:55:191
172459962,3cyclictest25993-21ssh23:35:231
172459962,3cyclictest24173-21sshd19:20:591
172459962,3cyclictest19165-21cat00:10:151
172459962,3cyclictest18140-21cat20:20:161
172459962,3cyclictest1141-21cat21:25:151
172459960,6cyclictest0-21swapper/121:17:591
172459960,3cyclictest25971-21turbostat22:00:001
172419966,0cyclictest0-21swapper/023:06:060
172419966,0cyclictest0-21swapper/019:50:170
172419963,2cyclictest658-21snmpd20:36:390
172419963,2cyclictest658-21snmpd20:04:120
172419963,2cyclictest5438-21sed22:25:220
172419963,2cyclictest501-21in:imuxsock23:00:000
172419963,2cyclictest32301-21ssh00:18:110
172419963,2cyclictest3064-21ssh23:03:090
172419963,2cyclictest30530-21rm00:36:010
172419963,2cyclictest275-21systemd-journal20:31:110
172419963,2cyclictest22238-21ssh21:37:570
172419963,2cyclictest21530-21ssh22:15:370
172419963,2cyclictest21375-21rm23:52:220
172419963,2cyclictest18559-21rm23:11:560
172419963,2cyclictest16047-21ssh21:15:060
172419963,2cyclictest15303-21ssh22:31:300
172419963,1cyclictest0-21swapper/023:41:470
172419962,3cyclictest989-21cron19:45:010
172419962,3cyclictest7652-21ls23:25:130
172419962,3cyclictest658-21snmpd23:20:330
172419962,3cyclictest658-21snmpd23:20:330
172419962,3cyclictest658-21snmpd22:40:520
172419962,3cyclictest658-21snmpd20:53:510
172419962,3cyclictest658-21snmpd20:21:130
172419962,3cyclictest658-21snmpd20:05:030
172419962,3cyclictest658-21snmpd19:39:430
172419962,3cyclictest658-21snmpd19:30:160
172419962,3cyclictest658-21snmpd19:27:560
172419962,3cyclictest658-21snmpd00:33:480
172419962,3cyclictest658-21snmpd00:26:210
172419962,3cyclictest658-21snmpd00:21:150
172419962,3cyclictest658-21snmpd00:12:400
172419962,3cyclictest275-21systemd-journal19:15:590
172419962,3cyclictest1958-21if_enp4s021:45:140
172419962,3cyclictest12785-21grep22:10:210
172419962,3cyclictest11153-21ntp_kernel_pll_00:05:180
172419962,3cyclictest0-21swapper/021:50:120
172419962,2cyclictest28215-1kworker/u9:121:59:050
172419961,2cyclictest658-21snmpd23:55:180
172419960,6cyclictest0-21swapper/023:30:530
172419960,6cyclictest0-21swapper/022:21:300
172419960,6cyclictest0-21swapper/022:01:530
172419960,6cyclictest0-21swapper/021:40:560
172419960,6cyclictest0-21swapper/021:30:060
172419960,6cyclictest0-21swapper/019:46:040
172419960,3cyclictest9942-21rm21:10:380
172419960,3cyclictest25038-21fschecks_time21:20:140
172549953,1cyclictest663-21runrttasks19:45:133
172549953,1cyclictest28205-21cron22:40:003
172549952,2cyclictest8918-21cat20:00:153
172549952,2cyclictest31194-21cat20:50:133
172549952,2cyclictest304-21systemd-udevd20:15:123
172549952,2cyclictest29138-21head20:45:163
172549952,2cyclictest26394-21grep20:40:143
172549952,2cyclictest24511-21cat20:35:123
172549952,2cyclictest11004-21expr20:05:143
172549952,2cyclictest10965-21ssh00:25:043
172549951,3cyclictest0-21swapper/321:25:033
172549950,4cyclictest27384-21diskstats19:30:133
172549950,3cyclictest275-21systemd-journal20:20:123
172549950,2cyclictest17474-21apt-get19:10:143
172509953,1cyclictest29779-21gltestperf19:35:152
172509952,2cyclictest6689-21/usr/sbin/munin19:55:152
172509952,2cyclictest658-21snmpd20:30:042
172509952,2cyclictest1132-21cat20:55:122
172509951,3cyclictest27341-21ntp_states20:40:192
172509951,3cyclictest18117-21cat20:20:152
172459953,1cyclictest6178-21cpuspeed_turbos19:55:121
172459952,2cyclictest658-21snmpd21:40:111
172459952,2cyclictest658-21snmpd20:45:091
172459952,2cyclictest658-21snmpd19:35:381
172459952,2cyclictest3562-21entropy21:00:131
172459952,2cyclictest31797-21cat20:50:141
172459952,2cyclictest19901-21sh00:30:131
172459952,2cyclictest17845-21df19:10:141
172459951,3cyclictest11070-21/usr/sbin/munin22:10:121
172459950,3cyclictest275-21systemd-journal20:30:131
172419952,2cyclictest658-21snmpd20:59:370
172419952,2cyclictest658-21snmpd19:55:110
172419952,2cyclictest658-21snmpd19:10:220
172419952,2cyclictest13352-21expr20:10:140
172419952,1cyclictest0-21swapper/022:45:060
172419951,3cyclictest9054-21cat23:45:150
172419951,3cyclictest275-21systemd-journal00:00:010
172419951,3cyclictest22536-21/usr/sbin/munin19:20:140
172419951,3cyclictest20848-21forks22:35:150
172419950,4cyclictest7047-21sshd21:06:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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