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2026-07-05 - 04:30
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack4slot4.osadl.org (updated Sun Jul 05, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71730rcu_preempt0-21swapper/222:33:352
71730rcu_preempt0-21swapper/222:33:352
26501994920cyclictest5516-21awk19:54:100
26501994920cyclictest5516-21awk19:54:100
26501994920cyclictest5516-21awk19:54:100
26501994827cyclictest29232-21df_inode19:23:590
26501994827cyclictest29232-21df_inode19:23:590
26501994827cyclictest29232-21df_inode19:23:590
26501994827cyclictest23777-21df_inode22:09:000
26501994827cyclictest23777-21df_inode22:09:000
26501994827cyclictest23777-21df_inode22:09:000
26501994727cyclictest1730-21/usr/sbin/munin22:29:000
26501994727cyclictest1730-21/usr/sbin/munin22:29:000
26501994725cyclictest14941-21diskstats20:28:590
26501994725cyclictest14941-21diskstats20:28:590
26501994725cyclictest14941-21diskstats20:28:590
26501994724cyclictest27768-21df19:18:580
26501994724cyclictest27768-21df19:18:580
26501994720cyclictest1244-21awk19:39:070
26501994720cyclictest1244-21awk19:39:070
26501994637cyclictest7050-21apt-get22:38:540
26501994637cyclictest7050-21apt-get22:38:540
26501994625cyclictest11228-21ntp_states21:44:170
26501994625cyclictest11228-21ntp_states21:44:170
26501994625cyclictest11228-21ntp_states21:44:170
26501994624cyclictest25106-1ssh23:13:260
26501994624cyclictest25106-1ssh23:13:260
26501994624cyclictest25106-1ssh23:13:260
26501994621cyclictest0-21swapper/000:08:580
26501994621cyclictest0-21swapper/000:08:580
71450rcu_preempt2047-21runrttasks23:30:160
71450rcu_preempt2047-21runrttasks23:30:160
71450rcu_preempt2047-21runrttasks23:30:160
2650399453cyclictest0-21swapper/222:53:142
2650399453cyclictest0-21swapper/222:53:142
2650399453cyclictest0-21swapper/222:53:142
26501994527cyclictest17463-21/usr/sbin/munin20:39:040
26501994527cyclictest17463-21/usr/sbin/munin20:39:040
26501994527cyclictest17463-21/usr/sbin/munin20:39:040
26501994525cyclictest10384-21meminfo22:44:090
26501994525cyclictest10384-21meminfo22:44:090
26501994525cyclictest10384-21meminfo22:44:090
26501994524cyclictest29164-21memory22:19:110
26501994524cyclictest29164-21memory22:19:110
26501994524cyclictest25215-21ntp_states00:14:100
26501994524cyclictest25215-21ntp_states00:14:100
26501994524cyclictest25215-21ntp_states00:14:100
26501994522cyclictest0-21swapper/022:49:240
26501994522cyclictest0-21swapper/022:49:240
26501994522cyclictest0-21swapper/022:49:240
26501994522cyclictest0-21swapper/021:42:190
26501994522cyclictest0-21swapper/021:42:190
26501994521cyclictest0-21swapper/023:53:550
26501994521cyclictest0-21swapper/023:53:550
26501994520cyclictest0-21swapper/023:34:090
26501994520cyclictest0-21swapper/023:34:090
26501994520cyclictest0-21swapper/023:34:090
26501994520cyclictest0-21swapper/022:08:280
26501994520cyclictest0-21swapper/022:08:280
26501994520cyclictest0-21swapper/022:08:280
71440rcu_preempt0-21swapper/022:17:440
71440rcu_preempt0-21swapper/022:17:440
71440rcu_preempt0-21swapper/000:27:350
71440rcu_preempt0-21swapper/000:27:350
71440rcu_preempt0-21swapper/000:27:350
26501994434cyclictest11738-21apt-get23:48:550
26501994434cyclictest11738-21apt-get23:48:550
26501994434cyclictest11738-21apt-get23:48:550
26501994434cyclictest11738-21apt-get23:48:550
26501994425cyclictest2730-21egrep21:28:570
26501994425cyclictest2730-21egrep21:28:570
26501994425cyclictest2730-21egrep21:28:570
26501994425cyclictest27231-21/usr/sbin/munin00:18:590
26501994425cyclictest27231-21/usr/sbin/munin00:18:590
26501994424cyclictest32179-21meminfo19:34:060
26501994424cyclictest32179-21meminfo19:34:060
26501994424cyclictest32179-21meminfo19:34:060
26501994424cyclictest3037-21users19:44:130
26501994424cyclictest3037-21users19:44:130
26501994424cyclictest3037-21users19:44:130
26501994423cyclictest7956-21chrt23:41:030
26501994423cyclictest7956-21chrt23:41:030
26501994423cyclictest27411-21df21:13:590
26501994423cyclictest27411-21df21:13:590
26501994423cyclictest24413-21apt-get21:03:550
26501994423cyclictest24413-21apt-get21:03:550
26501994423cyclictest24413-21apt-get21:03:550
26501994422cyclictest29919-21aten_r4power_po21:18:580
26501994422cyclictest29919-21aten_r4power_po21:18:580
26501994422cyclictest0-21swapper/022:37:250
26501994422cyclictest0-21swapper/022:37:250
26501994422cyclictest0-21swapper/000:08:020
26501994422cyclictest0-21swapper/000:08:020
26501994422cyclictest0-21swapper/000:08:020
26501994421cyclictest0-21swapper/023:04:000
26501994421cyclictest0-21swapper/023:04:000
26501994421cyclictest0-21swapper/023:04:000
71430rcu_preempt0-21swapper/021:25:100
71430rcu_preempt0-21swapper/021:25:100
71430rcu_preempt0-21swapper/021:25:100
2650399434cyclictest0-21swapper/222:39:042
2650399434cyclictest0-21swapper/222:39:042
2650399433cyclictest27679-21meminfo21:14:082
2650399433cyclictest27679-21meminfo21:14:082
2650399433cyclictest23272-21memory23:09:102
2650399433cyclictest23272-21memory23:09:102
2650399433cyclictest23272-21memory23:09:102
26503994321cyclictest22329-21diskstats00:09:012
26503994321cyclictest22329-21diskstats00:09:012
2650399431cyclictest31055-21ssh22:23:362
2650399431cyclictest31055-21ssh22:23:362
26503994318cyclictest24923-21ntp_states21:04:092
26503994318cyclictest24923-21ntp_states21:04:092
26503994318cyclictest24923-21ntp_states21:04:092
26501994335cyclictest27056-21munin-run21:13:460
26501994335cyclictest27056-21munin-run21:13:460
26501994329cyclictest153961irqstats22:54:040
26501994329cyclictest153961irqstats22:54:040
26501994323cyclictest15369-21ssh21:53:010
26501994323cyclictest15369-21ssh21:53:010
26501994323cyclictest15369-21ssh21:53:010
26501994322cyclictest32435-21apt-get00:28:560
26501994322cyclictest32435-21apt-get00:28:560
26501994322cyclictest32435-21apt-get00:28:560
26501994322cyclictest13723-21memory20:24:070
26501994322cyclictest13723-21memory20:24:070
26501994321cyclictest32292-21sh23:26:400
26501994321cyclictest32292-21sh23:26:400
26501994321cyclictest32292-21sh23:26:400
26501994321cyclictest0-21swapper/020:08:450
26501994321cyclictest0-21swapper/020:08:450
26501994321cyclictest0-21swapper/020:08:450
26501994320cyclictest170772sleep023:58:570
26501994320cyclictest170772sleep023:58:570
26501994320cyclictest170772sleep023:58:570
26501994320cyclictest0-21swapper/023:44:070
26501994320cyclictest0-21swapper/023:44:070
26501994320cyclictest0-21swapper/023:44:070
26501994320cyclictest0-21swapper/021:36:270
26501994320cyclictest0-21swapper/021:36:270
26501994319cyclictest0-21swapper/019:59:100
26501994319cyclictest0-21swapper/019:59:100
26501994319cyclictest0-21swapper/019:59:100
26501994316cyclictest19850-21ssh23:03:100
26501994316cyclictest19850-21ssh23:03:100
26501994316cyclictest19850-21ssh23:03:100
71420rcu_preempt0-21swapper/022:01:470
71420rcu_preempt0-21swapper/022:01:470
71420rcu_preempt0-21swapper/022:01:470
2650399424cyclictest0-21swapper/223:23:422
2650399424cyclictest0-21swapper/223:23:422
2650399424cyclictest0-21swapper/223:23:422
2650399423cyclictest17976-21ntp_states20:39:092
2650399423cyclictest17976-21ntp_states20:39:092
2650399423cyclictest17976-21ntp_states20:39:092
2650399421cyclictest9003-21sendmail-msp00:18:582
2650399421cyclictest9003-21sendmail-msp00:18:582
26503994218cyclictest0-21swapper/221:35:562
26503994218cyclictest0-21swapper/221:35:562
26501994223cyclictest25938-21ntp_states23:14:070
26501994223cyclictest25938-21ntp_states23:14:070
26501994223cyclictest25938-21ntp_states23:14:070
26501994222cyclictest11299-21/usr/sbin/munin20:14:130
26501994222cyclictest11299-21/usr/sbin/munin20:14:130
26501994222cyclictest10398-21cut20:13:440
26501994222cyclictest10398-21cut20:13:440
26501994222cyclictest10398-21cut20:13:440
26501994222cyclictest10398-21cut20:13:440
26501994221cyclictest0-21swapper/022:28:330
26501994221cyclictest0-21swapper/022:28:330
26501994220cyclictest0-21swapper/021:54:250
26501994220cyclictest0-21swapper/021:54:250
26501994220cyclictest0-21swapper/021:54:250
26501994220cyclictest0-21swapper/000:39:240
26501994220cyclictest0-21swapper/000:39:240
26501994219cyclictest0-21swapper/023:22:270
26501994219cyclictest0-21swapper/023:22:270
26501994219cyclictest0-21swapper/023:22:270
71410rcu_preempt9748-21sendmail-msp23:24:312
71410rcu_preempt9748-21sendmail-msp23:24:312
71410rcu_preempt9748-21sendmail-msp23:24:312
71410rcu_preempt372-21cat21:24:081
71410rcu_preempt372-21cat21:24:081
71410rcu_preempt372-21cat21:24:081
71410rcu_preempt28576-21copy22:18:491
71410rcu_preempt28576-21copy22:18:491
71410rcu_preempt24315-1kworker/1:1H00:33:561
71410rcu_preempt24315-1kworker/1:1H00:33:561
71410rcu_preempt0-21swapper/122:59:031
71410rcu_preempt0-21swapper/122:59:031
71410rcu_preempt0-21swapper/122:59:031
2650399414cyclictest0-21swapper/223:30:062
2650399414cyclictest0-21swapper/223:30:062
2650399414cyclictest0-21swapper/223:30:062
2650399413cyclictest0-21swapper/222:26:112
2650399413cyclictest0-21swapper/222:26:112
2650399413cyclictest0-21swapper/219:29:122
2650399413cyclictest0-21swapper/219:29:122
2650399413cyclictest0-21swapper/219:29:122
2650399412cyclictest8725-21users21:39:162
2650399412cyclictest8725-21users21:39:162
2650399412cyclictest6524-21df19:58:582
2650399412cyclictest6524-21df19:58:582
2650399412cyclictest6524-21df19:58:582
2650399412cyclictest25816-21meminfo23:14:032
2650399412cyclictest25816-21meminfo23:14:032
2650399412cyclictest25816-21meminfo23:14:032
2650399412cyclictest1150-21meminfo19:39:052
2650399412cyclictest1150-21meminfo19:39:052
2650399411cyclictest9656-21ntp_states20:09:082
2650399411cyclictest9656-21ntp_states20:09:082
2650399411cyclictest9656-21ntp_states20:09:082
2650399411cyclictest9656-21ntp_states20:09:082
26503994118cyclictest0-21swapper/222:56:442
26503994118cyclictest0-21swapper/222:56:442
26503994110cyclictest27059-21diskmemload23:06:292
26503994110cyclictest27059-21diskmemload23:06:292
26503994110cyclictest27059-21diskmemload23:06:292
26501994126cyclictest23254-21entropy20:59:010
26501994126cyclictest23254-21entropy20:59:010
26501994122cyclictest27465-21munin-run19:18:440
26501994122cyclictest27465-21munin-run19:18:440
26501994119cyclictest0-21swapper/020:34:100
26501994119cyclictest0-21swapper/020:34:100
26501994119cyclictest0-21swapper/020:34:100
26501994118cyclictest0-21swapper/020:44:050
26501994118cyclictest0-21swapper/020:44:050
71400rcu_preempt0-21swapper/222:03:142
71400rcu_preempt0-21swapper/222:03:142
71400rcu_preempt0-21swapper/222:03:142
71400rcu_preempt0-21swapper/000:34:030
71400rcu_preempt0-21swapper/000:34:030
2650399404cyclictest0-21swapper/222:33:592
2650399404cyclictest0-21swapper/222:33:592
2650399404cyclictest0-21swapper/200:16:322
2650399404cyclictest0-21swapper/200:16:322
2650399404cyclictest0-21swapper/200:16:322
2650399403cyclictest19105-21diskstats20:43:592
2650399403cyclictest19105-21diskstats20:43:592
2650399403cyclictest0-21swapper/221:49:032
2650399403cyclictest0-21swapper/221:49:032
2650399403cyclictest0-21swapper/221:49:032
2650399402cyclictest5210-21diskstats19:54:002
2650399402cyclictest5210-21diskstats19:54:002
2650399402cyclictest5210-21diskstats19:54:002
2650399402cyclictest30298-21memory00:24:072
2650399402cyclictest30298-21memory00:24:072
2650399402cyclictest30298-21memory00:24:072
2650399402cyclictest23782-21diskstats22:09:002
2650399402cyclictest23782-21diskstats22:09:002
2650399402cyclictest23782-21diskstats22:09:002
2650399402cyclictest16254-21df20:34:002
2650399402cyclictest16254-21df20:34:002
2650399402cyclictest16254-21df20:34:002
2650399401cyclictest8837-21sendmail-msp20:08:452
2650399401cyclictest8837-21sendmail-msp20:08:452
2650399401cyclictest8837-21sendmail-msp20:08:452
2650399401cyclictest19740-21df_abs00:04:022
2650399401cyclictest19740-21df_abs00:04:022
2650399401cyclictest19740-21df_abs00:04:022
2650399401cyclictest17882-21ssh23:59:202
2650399401cyclictest17882-21ssh23:59:202
2650399401cyclictest17882-21ssh23:59:202
2650399401cyclictest11738-21apt-get23:48:572
2650399401cyclictest11738-21apt-get23:48:572
2650399401cyclictest11738-21apt-get23:48:572
2650399401cyclictest11738-21apt-get23:48:572
2650399401cyclictest10627-21apt-get21:43:552
2650399401cyclictest10627-21apt-get21:43:552
2650399401cyclictest10627-21apt-get21:43:552
26503994018cyclictest0-21swapper/221:22:282
26503994018cyclictest0-21swapper/221:22:282
26503994017cyclictest965-21/usr/sbin/munin00:29:162
26503994017cyclictest965-21/usr/sbin/munin00:29:162
26503994017cyclictest965-21/usr/sbin/munin00:29:162
26503994016cyclictest32178-21meminfo19:34:052
26503994016cyclictest32178-21meminfo19:34:052
26503994016cyclictest32178-21meminfo19:34:052
26503994015cyclictest17474-21rm21:56:352
26503994015cyclictest17474-21rm21:56:352
26503994015cyclictest17474-21rm21:56:352
26501994020cyclictest3435-21apt-get19:49:030
26501994020cyclictest3435-21apt-get19:49:030
26501994020cyclictest3435-21apt-get19:49:030
2650399399cyclictest12862-1kworker/2:2H20:21:272
2650399399cyclictest12862-1kworker/2:2H20:21:272
2650399394cyclictest7934-1kworker/2:0H22:43:592
2650399394cyclictest7934-1kworker/2:0H22:43:592
2650399394cyclictest7934-1kworker/2:0H22:43:592
2650399393cyclictest0-21swapper/222:04:132
2650399393cyclictest0-21swapper/222:04:132
2650399393cyclictest0-21swapper/222:04:132
2650399392cyclictest27056-21munin-run21:13:452
2650399392cyclictest27056-21munin-run21:13:452
2650399392cyclictest2479-21irqstats19:44:032
2650399392cyclictest2479-21irqstats19:44:032
2650399392cyclictest2479-21irqstats19:44:032
2650399392cyclictest1959-21runrttasks20:13:552
2650399392cyclictest1959-21runrttasks20:13:552
2650399392cyclictest17885-21df_inode22:59:012
2650399392cyclictest17885-21df_inode22:59:012
2650399392cyclictest17885-21df_inode22:59:012
2650399391cyclictest14319-21/usr/sbin/munin23:54:132
2650399391cyclictest14319-21/usr/sbin/munin23:54:132
26503993915cyclictest9356-21df23:44:002
26503993915cyclictest9356-21df23:44:002
26503993915cyclictest9356-21df23:44:002
26501993917cyclictest8837-21sendmail-msp20:21:480
26501993917cyclictest8837-21sendmail-msp20:21:480
71380rcu_preempt32324-1kworker/3:0H21:24:163
71380rcu_preempt32324-1kworker/3:0H21:24:163
71380rcu_preempt32324-1kworker/3:0H21:24:163
71380rcu_preempt24315-1kworker/1:1H00:26:481
71380rcu_preempt24315-1kworker/1:1H00:26:481
71380rcu_preempt24315-1kworker/1:1H00:26:481
71380rcu_preempt0-21swapper/321:16:133
71380rcu_preempt0-21swapper/321:16:133
71380rcu_preempt0-21swapper/121:31:581
71380rcu_preempt0-21swapper/121:31:581
71380rcu_preempt0-21swapper/121:31:581
2650399383cyclictest0-21swapper/222:15:002
2650399383cyclictest0-21swapper/222:15:002
2650399383cyclictest0-21swapper/200:39:412
2650399383cyclictest0-21swapper/200:39:412
2650399382cyclictest3820-21diskstats19:49:012
2650399382cyclictest3820-21diskstats19:49:012
2650399382cyclictest3820-21diskstats19:49:012
2650399381cyclictest29002-21apt-get19:23:562
2650399381cyclictest29002-21apt-get19:23:562
2650399381cyclictest29002-21apt-get19:23:562
2650399381cyclictest2597-21apt-get21:28:552
2650399381cyclictest2597-21apt-get21:28:552
2650399381cyclictest2597-21apt-get21:28:552
2650399381cyclictest14704-21apt-get20:28:552
2650399381cyclictest14704-21apt-get20:28:552
2650399381cyclictest14704-21apt-get20:28:552
2650399381cyclictest13318-21apt-get20:23:552
2650399381cyclictest13318-21apt-get20:23:552
2650399381cyclictest0-21swapper/223:34:122
2650399381cyclictest0-21swapper/223:34:122
2650399381cyclictest0-21swapper/223:34:122
26501993820cyclictest0-21swapper/020:48:570
26501993820cyclictest0-21swapper/020:48:570
26501993818cyclictest0-21swapper/020:54:100
26501993818cyclictest0-21swapper/020:54:100
26501993818cyclictest0-21swapper/020:54:100
26501993816cyclictest0-21swapper/019:29:120
26501993816cyclictest0-21swapper/019:29:120
26501993816cyclictest0-21swapper/019:29:120
71370rcu_preempt17449-21crond22:58:441
71370rcu_preempt17449-21crond22:58:441
71370rcu_preempt0-21swapper/323:22:473
71370rcu_preempt0-21swapper/323:22:473
71370rcu_preempt0-21swapper/323:22:473
71370rcu_preempt0-21swapper/123:43:551
71370rcu_preempt0-21swapper/123:43:551
71370rcu_preempt0-21swapper/123:43:551
71370rcu_preempt0-21swapper/123:15:551
71370rcu_preempt0-21swapper/123:15:551
71370rcu_preempt0-21swapper/123:15:551
71370rcu_preempt0-21swapper/122:34:301
71370rcu_preempt0-21swapper/122:34:301
2650399371cyclictest2742-21/usr/sbin/munin00:34:122
2650399371cyclictest2742-21/usr/sbin/munin00:34:122
2650399371cyclictest0-21swapper/223:39:102
2650399371cyclictest0-21swapper/223:39:102
26503993716cyclictest0-21swapper/221:24:092
26503993716cyclictest0-21swapper/221:24:092
26503993716cyclictest0-21swapper/221:24:092
26503993711cyclictest22326-21threads20:54:102
26503993711cyclictest22326-21threads20:54:102
26503993711cyclictest22326-21threads20:54:102
71360rcu_preempt8979-21ssh23:43:441
71360rcu_preempt8979-21ssh23:43:441
71360rcu_preempt28621-21kworker/3:022:18:593
71360rcu_preempt28621-21kworker/3:022:18:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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