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2026-04-30 - 15:18
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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 792 highest latencies:
System rackeslot4.osadl.org (updated Thu Apr 30, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2208356995450,2cyclictest2418407-21fwupd23:01:552
2208356993532,2cyclictest0-21swapper/219:49:592
220836099261,21cyclictest2425307-21apt-get23:20:113
220835699262,21cyclictest2311825-21apt-get20:50:132
220835699261,2cyclictest2240164-21apt-get19:40:132
220835199262,3cyclictest2245641-21apt-get19:45:121
2208351992622,3cyclictest2324183-21kthreadcore21:00:171
220835699251,22cyclictest2276077-21apt-get20:15:102
220835199251,4cyclictest2347750-21apt-get21:25:131
220835199251,22cyclictest2301111-21/usr/sbin/munin20:40:011
220835199251,21cyclictest2352824-21apt-get21:30:101
220835199251,21cyclictest2342390-21cron21:20:001
220834899252,21cyclictest2327034-21apt-get21:05:140
2208360992420,2cyclictest2347750-21apt-get21:25:133
2208360992420,2cyclictest2265926-21apt-get20:05:133
220836099241,20cyclictest0-21swapper/319:20:103
220836099241,19cyclictest0-21swapper/319:50:103
220835699242,2cyclictest2316879-21apt-get20:55:122
2208356992420,3cyclictest2407239-21sh22:45:002
220835699241,2cyclictest2442472-21apt-get23:50:112
220835699241,20cyclictest2390590-21apt-get22:20:142
220835699240,20cyclictest2271004-21apt-get20:10:142
220835199242,20cyclictest261-21systemd-journal23:30:001
220835199241,21cyclictest0-21swapper/121:10:011
220835199240,22cyclictest2401707-21cron22:40:001
220834899241,3cyclictest2408157-21apt-get22:50:100
2208360992319,3cyclictest491ktimers/322:40:123
2208360992319,2cyclictest2357878-21apt-get21:35:123
220836099231,20cyclictest2342672-21apt-get21:20:113
220836099230,22cyclictest2295110-21chrt20:30:183
220836099230,20cyclictest0-21swapper/320:55:123
2208356992320,2cyclictest2332540-21apt-get21:10:132
220835699231,3cyclictest2452979-21cron00:04:592
220835699231,2cyclictest2281628-21ps20:20:172
220835699230,3cyclictest2367702-21cron21:45:002
220835699230,21cyclictest2424386-21sh23:15:002
220835699230,21cyclictest2235176-21irqcore19:35:162
220835199232,2cyclictest301rcuc/100:30:111
2208351992319,2cyclictest2425037-21turbostat.cron23:20:001
2208351992319,2cyclictest0-21swapper/119:54:591
220835199231,2cyclictest0-21swapper/120:40:031
220835199231,2cyclictest0-21swapper/120:25:131
220835199231,21cyclictest0-21swapper/123:40:121
220835199231,20cyclictest2229632-21apt-get19:30:121
220835199230,20cyclictest0-21swapper/122:00:131
220834899232,20cyclictest2413879-21apt-get23:00:120
2208348992320,2cyclictest2373465-21apt-get21:50:110
2208348992320,2cyclictest2291239-21apt-get20:30:100
2208348992319,2cyclictest2301770-21apt-get20:40:130
220834899231,2cyclictest2219075-21apt-get19:20:100
220836099221,19cyclictest2452978-21cron00:04:593
220836099220,21cyclictest3377470-21kworker/u8:2+ext4-rsv-conversion19:49:593
220836099220,21cyclictest2367711-21basename21:45:003
220836099220,20cyclictest2260572-21idleruntime-cro20:00:003
220836099220,20cyclictest2260572-21idleruntime-cro19:59:593
220836099220,20cyclictest2244935-21cron19:45:003
220836099220,20cyclictest0-21swapper/321:05:143
220836099220,19cyclictest0-21swapper/320:15:103
220836099220,19cyclictest0-21swapper/300:10:113
2208356992219,2cyclictest2310701-21ntpq20:45:212
2208356992218,3cyclictest2328608-21sshd21:05:192
2208356992218,2cyclictest0-21swapper/223:40:122
220835699221,1cyclictest0-21swapper/220:00:002
220835699221,1cyclictest0-21swapper/219:59:592
220835699220,2cyclictest0-21swapper/220:05:132
220835699220,20cyclictest0-21swapper/220:00:112
220835699220,1cyclictest0-21swapper/200:10:112
220835699220,19cyclictest0-21swapper/222:50:112
220835699220,19cyclictest0-21swapper/222:00:132
2208351992219,2cyclictest0-21swapper/120:05:131
2208351992219,2cyclictest0-21swapper/100:20:121
220835199221,20cyclictest0-21swapper/120:50:131
220835199221,19cyclictest0-21swapper/123:30:121
220835199220,2cyclictest0-21swapper/121:50:131
220835199220,20cyclictest2402411-21apt-get22:40:111
220835199220,20cyclictest0-21swapper/123:50:111
2208348992219,2cyclictest2352546-21cron21:30:000
220834899221,20cyclictest2379166-21apt-get22:00:130
220834899221,20cyclictest2306795-21apt-get20:45:110
220834899221,20cyclictest2214002-21apt-get19:15:120
220834899220,3cyclictest2353314-21tr21:30:160
220834899220,2cyclictest2389662-21cron22:15:000
220834899220,2cyclictest2244947-21munin-run19:45:000
220834899220,21cyclictest1-21systemd20:20:000
220834899220,20cyclictest0-21swapper/020:50:130
2208360992119,1cyclictest500-21dbus-daemon22:10:003
2208360992119,1cyclictest0-21swapper/320:00:113
2208360992119,1cyclictest0-21swapper/319:35:123
2208360992117,3cyclictest2424396-21sh23:15:003
220836099211,19cyclictest2356755-21ntpq21:30:203
220836099210,19cyclictest0-21swapper/323:40:123
2208356992118,2cyclictest2208902-21apt-get19:10:122
2208356992118,2cyclictest0-21swapper/223:20:112
2208356992118,1cyclictest0-21swapper/200:30:112
220835699210,2cyclictest0-21swapper/221:25:132
220835699210,20cyclictest2453619-21cron00:10:002
220835699210,20cyclictest0-21swapper/222:10:002
220835699210,19cyclictest2250716-21apt-get19:50:102
220835699210,19cyclictest2230122-21sort19:30:162
2208351992119,1cyclictest0-21swapper/119:10:121
2208351992115,4cyclictest2285898-21cron20:25:011
220835199210,20cyclictest0-21swapper/122:50:111
220835199210,20cyclictest0-21swapper/119:25:131
2208348992119,1cyclictest0-21swapper/022:40:020
2208348992118,2cyclictest2286186-21apt-get20:25:120
2208348992118,2cyclictest1-21systemd21:50:000
2208348992118,2cyclictest0-21swapper/021:35:110
2208348992117,3cyclictest2424382-21idleruntime-cro23:15:000
2208348992116,4cyclictest2255846-21/usr/sbin/munin19:55:120
2208348992116,4cyclictest2255846-21/usr/sbin/munin19:55:120
220834899211,19cyclictest2459656-21apt-get00:20:120
220834899211,19cyclictest0-21swapper/019:45:120
220834899210,2cyclictest2271498-21ps20:10:180
220834899210,20cyclictest2437220-21ps23:40:160
2208360992018,1cyclictest0-21swapper/321:10:033
2208360992018,1cyclictest0-21swapper/320:40:143
2208360992017,2cyclictest0-21swapper/322:50:113
220836099200,2cyclictest2281635-21cut20:20:173
220836099200,1cyclictest0-21swapper/323:50:113
220836099200,1cyclictest0-21swapper/322:20:133
220836099200,1cyclictest0-21swapper/319:10:123
220836099200,19cyclictest0-21swapper/300:30:163
2208356992017,2cyclictest0-21swapper/219:15:122
2208356992017,1cyclictest0-21swapper/200:20:212
2208356992014,4cyclictest2425027-21cron23:20:002
220835699200,1cyclictest0-21swapper/220:40:142
220835699200,1cyclictest0-21swapper/219:20:102
220835699200,19cyclictest0-21swapper/221:35:122
220835699200,19cyclictest0-21swapper/200:20:002
2208351992018,1cyclictest0-21swapper/121:35:121
2208351992017,2cyclictest2419309-21cron23:10:001
2208351992017,2cyclictest0-21swapper/123:20:101
2208351992017,2cyclictest0-21swapper/123:10:211
2208351992017,1cyclictest2453898-21apt-get00:10:121
2208351992016,2cyclictest2367987-21apt-get21:45:131
2208351992015,2cyclictest191rcu_preempt21:10:241
2208351992015,1cyclictest22355021irqcore19:35:161
2208351992014,2cyclictest191rcu_preempt20:10:261
220835199200,1cyclictest0-21swapper/121:20:111
2208348992018,1cyclictest0-21swapper/020:35:140
2208348992018,1cyclictest0-21swapper/019:10:200
2208348992017,2cyclictest2239464-21apt-get19:39:590
220834899200,1cyclictest0-21swapper/023:20:120
220834899200,1cyclictest0-21swapper/020:55:130
220834899200,19cyclictest0-21swapper/019:50:100
2208360991917,1cyclictest1-21systemd00:19:383
2208360991917,1cyclictest0-21swapper/323:00:123
2208360991917,1cyclictest0-21swapper/322:10:123
2208360991916,2cyclictest2373953-21irqcore21:50:183
2208360991916,1cyclictest0-21swapper/322:00:123
220836099190,1cyclictest0-21swapper/319:30:123
2208356991916,1cyclictest2224554-21apt-get19:25:132
220835699190,0cyclictest0-21swapper/222:10:122
220835199199,5cyclictest0-21swapper/123:00:231
220835199197,5cyclictest0-21swapper/122:05:311
2208351991918,1cyclictest0-21swapper/119:55:161
2208351991918,1cyclictest0-21swapper/119:55:161
2208351991916,1cyclictest0-21swapper/120:15:101
2208348991917,1cyclictest0-21swapper/021:40:120
2208348991915,2cyclictest2470813-21cron00:40:000
220834899190,1cyclictest0-21swapper/000:10:110
220834899190,19cyclictest0-21swapper/022:20:130
220834899190,19cyclictest0-21swapper/021:10:120
2208360991815,2cyclictest2413622-21munin-run23:00:003
220836099181,1cyclictest2310710-21ntpq20:45:213
2208356991816,1cyclictest2413612-21turbostat.cron23:00:002
2208351991814,3cyclictest261-21systemd-journal22:00:001
2208351991813,3cyclictest2442204-21idleruntime-cro23:50:001
2208351991813,1cyclictest191rcu_preempt22:27:461
2208351991813,1cyclictest191rcu_preempt19:40:181
2208351991812,1cyclictest191rcu_preempt21:40:121
220835199180,4cyclictest0-21swapper/120:30:191
2208348991816,1cyclictest0-21swapper/021:20:120
2208360991713,2cyclictest2453628-21cron00:09:593
2208360991713,2cyclictest0-21swapper/320:40:013
2208356991716,1cyclictest0-21swapper/221:00:212
2208356991715,1cyclictest2436461-21idleruntime-cro23:40:002
2208356991715,1cyclictest0-21swapper/221:30:152
2208351991716,1cyclictest301rcuc/120:55:131
2208351991715,2cyclictest301rcuc/100:00:011
2208351991714,2cyclictest0-21swapper/122:30:131
2208351991712,3cyclictest2311567-21basename20:50:001
2208348991715,1cyclictest2447268-21idleruntime-cro23:55:000
2208348991715,1cyclictest0-21swapper/021:15:110
2208348991715,1cyclictest0-21swapper/021:00:110
2208348991715,1cyclictest0-21swapper/020:05:130
2208348991714,2cyclictest2265661-21idleruntime-cro20:04:590
2208348991713,3cyclictest61650irq/133-enp0s29f1:rx-022:30:220
2208348991713,3cyclictest2442206-21sh23:50:000
2208360991614,1cyclictest0-21swapper/300:20:213
2208360991613,2cyclictest0-21swapper/319:15:123
2208356991613,2cyclictest0-21swapper/221:15:102
2208356991613,2cyclictest0-21swapper/220:40:012
2208356991611,2cyclictest2442221-21sleep23:50:002
220835199167,5cyclictest0-21swapper/120:05:001
220835199162,3cyclictest0-21swapper/100:28:151
2208351991612,1cyclictest191rcu_preempt22:57:071
2208351991612,1cyclictest191rcu_preempt22:20:191
2208351991612,1cyclictest191rcu_preempt19:23:411
2208351991612,1cyclictest191rcu_preempt19:15:231
2208348991613,2cyclictest61650irq/133-enp0s29f1:rx-022:20:000
2208348991613,2cyclictest61650irq/133-enp0s29f1:rx-000:30:100
2208348991612,3cyclictest2224621-21cpuspeed_turbos19:25:130
2208348991612,2cyclictest61650irq/133-enp0s29f1:rx-000:07:150
2208360991513,1cyclictest2325917-21ntpq21:00:213
2208360991513,1cyclictest0-21swapper/320:50:123
2208360991512,2cyclictest2338136-21grep21:15:143
2208360991512,2cyclictest0-21swapper/322:40:003
2208360991510,3cyclictest2425034-21basename23:20:003
2208356991513,1cyclictest0-21swapper/220:30:102
2208356991512,2cyclictest0-21swapper/222:50:002
2208356991510,4cyclictest2373428-21sshd21:50:062
2208351991513,1cyclictest0-21swapper/100:00:111
220835199150,4cyclictest2389003-21switchtime22:10:231
2208348991512,2cyclictest211rcuc/022:50:000
2208360991411,2cyclictest3852782-21kworker/u8:0+events_unbound22:00:003
2208360991411,2cyclictest2228950-21unixbench_singl19:25:253
2208360991410,3cyclictest2368052-21cpuspeed_turbos21:45:123
2208360991410,2cyclictest0-21swapper/322:30:183
2208356991410,2cyclictest2401717-21latency_hist22:40:002
2208351991411,1cyclictest500-21dbus-daemon00:40:001
2208351991410,1cyclictest191rcu_preempt22:46:211
2208351991410,1cyclictest191rcu_preempt00:09:111
220835199140,4cyclictest2390482-21latency_hist22:20:001
220834899148,4cyclictest261-21systemd-journal23:16:050
220834899148,4cyclictest2436454-21cron23:40:000
2208348991411,2cyclictest61650irq/133-enp0s29f1:rx-023:30:180
2208356991310,2cyclictest2432126-21kthreadcore23:30:172
220835199139,1cyclictest191rcu_preempt00:18:511
220834899139,3cyclictest2281676-21cut20:20:170
220834899139,2cyclictest0-21swapper/022:39:590
220836099129,2cyclictest491ktimers/323:30:013
220836099127,4cyclictest2395693-21sshd22:26:053
2208360991210,1cyclictest0-21swapper/300:40:013
220835699129,2cyclictest0-21swapper/223:30:002
220835699128,3cyclictest509-21systemd-logind00:28:542
220835699128,3cyclictest2342963-21gltestperf21:20:142
2208356991210,1cyclictest0-21swapper/221:45:212
2208356991210,1cyclictest0-21swapper/220:25:162
220835199120,2cyclictest32-21ksoftirqd/123:35:051
220834899129,2cyclictest61650irq/133-enp0s29f1:rx-023:55:040
220834899129,2cyclictest61650irq/133-enp0s29f1:rx-019:30:180
220834899129,2cyclictest61650irq/133-enp0s29f1:rx-000:20:000
220834899129,2cyclictest2465142-21turbostat00:30:000
220834899129,2cyclictest2448185-21apt-get00:00:110
220834899125,5cyclictest500-21dbus-daemon23:10:000
220836099118,2cyclictest0-21swapper/320:10:143
220836099117,3cyclictest2464739-21sshd00:25:153
220836099117,3cyclictest2418956-21sshd23:05:393
220836099117,2cyclictest2442196-21idleruntime-cro23:50:003
220836099110,5cyclictest481rcuc/319:10:003
220836099110,3cyclictest2407904-21awk22:50:003
220836099110,3cyclictest0-21swapper/323:59:183
220835699119,1cyclictest0-21swapper/222:00:002
220835699117,2cyclictest0-21swapper/222:30:152
220835699117,2cyclictest0-21swapper/200:00:002
220834899118,2cyclictest61650irq/133-enp0s29f1:rx-022:07:040
220834899118,2cyclictest2413601-21idleruntime-cro23:00:000
220834899111,3cyclictest2396150-21cat22:30:000
220836099107,2cyclictest0-21swapper/320:25:163
220836099106,3cyclictest2436087-21seq23:35:293
220836099106,2cyclictest0-21swapper/322:19:593
220835699101,8cyclictest2208571-21cat19:10:002
220835699100,2cyclictest0-21swapper/222:25:352
220834899106,2cyclictest2430735-21latency_hist23:30:010
22083569996,2cyclictest514-21in:imuxsock22:17:012
22083569994,4cyclictest500-21dbus-daemon23:10:002
22083569990,7cyclictest2470814-21cron00:40:012
22083489997,1cyclictest2306317-21kworker/0:1+events_power_efficient21:55:140
22083489985,2cyclictest0-21swapper/019:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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