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2025-12-16 - 08:07
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack7slot2.osadl.org (updated Tue Dec 16, 2025 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92337999889,6cyclictest53-21kswapd023:50:090
92338999678,6cyclictest240620-21kworker/u4:2+events_unbound23:42:581
92337998984,3cyclictest200512-21kworker/u4:11+events_unbound22:47:470
92338998576,6cyclictest118040-21apt-get20:50:061
92337998074,4cyclictest53-21kswapd023:42:210
92337997728,37cyclictest0-21swapper/021:45:340
92338997646,27cyclictest315-21systemd-journal21:57:381
92338997538,33cyclictest110596-21aten2__20:20:161
92338997535,4cyclictest0-21swapper/123:05:101
9233899744,26cyclictest190705-21ssh22:35:231
92338997436,34cyclictest118183-21latency_hist20:50:001
92338997341,30cyclictest93230-21sendmail_mailqu19:10:361
92338997333,8cyclictest0-21swapper/123:10:221
92338997226,42cyclictest53-21kswapd023:45:191
92338997226,42cyclictest53-21kswapd023:45:181
92337997265,5cyclictest53-21kswapd023:49:320
92337997265,5cyclictest53-21kswapd023:49:320
92337997228,22cyclictest0-21swapper/022:55:320
92337997224,27cyclictest0-21swapper/000:20:280
92338997131,36cyclictest119362-21kworker/u4:8-rpciod21:15:021
9233799711,45cyclictest269456-21ssh00:14:000
92338997034,5cyclictest0-21swapper/123:55:401
92337997062,5cyclictest53-21kswapd023:15:140
92337997035,32cyclictest218874-21irqstats23:10:200
92337997033,19cyclictest0-21swapper/021:15:000
92337997028,39cyclictest228448-21kworker/u4:0+rpciod23:25:300
92338996958,9cyclictest196679-21systemd22:42:471
92338996936,4cyclictest142928-21aten2__21:35:141
92338996928,6cyclictest282314-21sshd00:30:091
92337996938,29cyclictest116780-21munin-plugin-st20:45:000
92337996918,27cyclictest25650irq/23-42890000.ethernet21:30:190
9233899687,15cyclictest171rcu_preempt21:25:251
92338996856,8cyclictest0-21swapper/121:40:391
92337996834,30cyclictest121178-21fschecks_time21:00:200
92338996734,6cyclictest154770-21df_abs21:50:171
92338996729,6cyclictest0-21swapper/100:00:231
92337996755,9cyclictest53-21kswapd023:25:000
92337996733,30cyclictest108353-21gltestperf20:10:240
92337996733,30cyclictest108353-21gltestperf20:10:230
92337996728,21cyclictest0-21swapper/021:50:160
92337996719,26cyclictest25650irq/23-42890000.ethernet22:35:320
9233799671,38cyclictest186745-21ntpq22:30:310
92338996656,7cyclictest53-21kswapd022:55:001
9233799663,38cyclictest287732-21ssh00:35:510
9233799663,38cyclictest287732-21ssh00:35:510
9233799661,46cyclictest239619-21/usr/sbin/munin23:35:410
92337996535,28cyclictest99749-21timerandwakeup19:35:370
9233799653,46cyclictest270968-21ntpq00:15:270
92337996531,31cyclictest0-21swapper/020:55:380
9233799651,44cyclictest203078-21ntpq22:50:330
92338996449,10cyclictest0-21swapper/123:00:331
92337996426,35cyclictest0-21swapper/000:10:010
9233799642,39cyclictest159165-21ntpq21:55:330
92337996420,23cyclictest0-21swapper/021:35:140
92337996417,29cyclictest0-21swapper/022:10:330
92337996417,29cyclictest0-21swapper/022:10:320
92337996332,28cyclictest105100-21sendmail20:00:010
92337996330,30cyclictest110655-21aten_r7power_po20:20:160
9233799631,57cyclictest100177-21apt-get19:40:120
92338996250,9cyclictest102516-21systemd19:47:181
92338996230,5cyclictest0-21swapper/121:45:181
92337996233,26cyclictest0-21swapper/000:30:300
92337996230,29cyclictest0-21swapper/022:00:270
92337996230,29cyclictest0-21swapper/022:00:260
92337996229,30cyclictest0-21swapper/021:40:250
9233799621,42cyclictest235325-21ssh23:30:410
9233799613,55cyclictest94342-21ntpq19:15:350
9233799613,53cyclictest128681-21grep21:15:440
9233799613,53cyclictest128681-21grep21:15:430
9233799613,42cyclictest109807-21ntpq20:15:240
9233799612,43cyclictest136005-21ntpq21:25:340
9233799611,42cyclictest112424-21ntpq20:25:280
9233799611,37cyclictest174529-21ntpq22:15:310
92338996051,7cyclictest230002-21apt-get23:25:111
9233799604,53cyclictest210983-21ntpq23:00:240
9233799604,52cyclictest95619-21ntpq19:20:230
92337996028,30cyclictest105498-21aten_r7power_vo20:00:240
9233799602,54cyclictest118294-21apt-get20:50:160
9233799602,54cyclictest117503-21ntpq20:45:250
9233799602,54cyclictest102057-21ntpq19:45:270
9233799602,48cyclictest214369-21ssh23:05:200
9233799602,41cyclictest96563-21diskstats19:25:180
9233799602,41cyclictest92961-21irqstats19:10:220
9233799593,51cyclictest254327-21apt-get23:55:130
92337995928,28cyclictest96135-21kworker/u4:0-rpciod19:54:590
9233799591,37cyclictest0-21swapper/000:25:380
9233799582,53cyclictest107279-21ntpq20:05:350
9233799582,40cyclictest122774-21ntpq21:05:320
9233799582,34cyclictest92314-21munin-run19:09:590
92337995750,5cyclictest53-21kswapd022:25:000
92337995750,5cyclictest53-21kswapd022:25:000
92337995727,28cyclictest0-21swapper/021:20:240
9233799572,52cyclictest194143-21apt-get22:40:120
9233799572,38cyclictest113564-21/usr/sbin/munin20:30:210
92338995649,5cyclictest156564-21kworker/u4:0+events_unbound22:05:221
92338995649,5cyclictest156564-21kworker/u4:0+events_unbound22:05:211
92338995646,7cyclictest139582-21/usr/sbin/munin21:30:221
92338995638,12cyclictest99987-21modprobe19:39:591
9233799563,49cyclictest114963-21ntpq20:35:290
9233799562,49cyclictest98184-21ntpq19:30:270
92337995623,30cyclictest258694-21fschecks_time00:00:230
9233799561,40cyclictest182718-21ntpq22:25:290
92338995541,9cyclictest0-21swapper/123:35:141
92337995522,30cyclictest0-21swapper/022:05:210
92337995522,30cyclictest0-21swapper/022:05:210
92338995440,9cyclictest0-21swapper/122:20:371
92338995440,9cyclictest0-21swapper/122:20:361
9233899537,38cyclictest267015-21ssh00:10:261
9233899537,14cyclictest235169-21ntp_states23:30:371
92338995343,8cyclictest109062-21systemd20:12:211
92338995343,8cyclictest109062-21systemd20:12:201
92338995332,12cyclictest106457-21modprobe20:05:001
92338995243,6cyclictest0-21swapper/100:20:291
92338995240,9cyclictest116741-21systemd20:42:251
92338995144,5cyclictest264392-21kworker/u4:1+events_unbound00:08:041
92338995041,7cyclictest119362-21kworker/u4:8+events_unbound21:17:311
92338995041,7cyclictest119362-21kworker/u4:8+events_unbound21:17:301
92338994943,4cyclictest92336-21cyclictest23:17:541
92338994940,5cyclictest0-21swapper/123:50:111
92338994937,6cyclictest189779-21kworker/u4:322:35:011
92338994839,7cyclictest184000-21kworker/u4:7+events_unbound22:57:491
92338994839,7cyclictest162848-21/usr/sbin/munin22:00:241
92338994839,7cyclictest162848-21/usr/sbin/munin22:00:241
92338994839,7cyclictest119756-21sed20:55:181
92338994835,8cyclictest0-21swapper/119:25:311
92338994812,6cyclictest123240-21diskmemload21:20:361
9233899475,29cyclictest182559-21memory22:25:221
92338994738,6cyclictest174673-21ssh22:15:381
92338994737,7cyclictest0-21swapper/122:10:431
92338994737,7cyclictest0-21swapper/122:10:421
92338994735,7cyclictest0-21swapper/122:45:331
92338994638,5cyclictest107630-21grep20:05:421
92338994636,7cyclictest278542-21aten_r7power_vo00:25:181
92338994537,5cyclictest230020-21apt-get23:24:591
92338994437,5cyclictest53-21kswapd000:35:341
92338994437,5cyclictest53-21kswapd000:35:331
92338994434,6cyclictest0-21swapper/121:10:021
92338994433,9cyclictest92266-21kworker/u4:5-rpciod19:15:201
92338994336,5cyclictest264399-21kworker/u4:9+events_unbound00:20:011
92338994334,7cyclictest96163-21sh19:25:001
92338994333,6cyclictest93558-21kworker/u4:10-rpciod20:25:391
92338994330,9cyclictest0-21swapper/120:35:181
92338994236,4cyclictest121932-21systemd21:02:271
92338994234,5cyclictest98676-21kworker/u4:14-rpciod20:30:201
92338994130,6cyclictest0-21swapper/119:55:191
92338994130,6cyclictest0-21swapper/119:30:231
92338994033,5cyclictest99947-21kworker/u4:16+events_unbound20:15:381
92338994026,10cyclictest101355-21ls19:45:021
92338993829,6cyclictest0-21swapper/119:50:321
92338993324,7cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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