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2026-07-06 - 12:26
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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 highest latencies:
System rackaslot8.osadl.org (updated Mon Jul 06, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242062312279,22sleep10-21swapper/119:05:491
244262288258,19sleep20-21swapper/219:08:242
242932281215,21sleep00-21swapper/019:06:410
244782268237,20sleep30-21swapper/319:09:063
267482640,2sleep126746-21/usr/sbin/munin22:35:121
98742630,0sleep10-21swapper/123:43:191
252252620,0sleep20-21swapper/222:34:332
312302610,0sleep20-21swapper/220:35:122
81402600,0sleep30-21swapper/300:01:143
222002600,0sleep00-21swapper/022:51:450
24862580,0sleep00-21swapper/021:41:010
24862580,0sleep00-21swapper/021:41:010
211372550,0sleep10-21swapper/121:33:081
286042540,0sleep30-21swapper/322:16:123
202872540,0sleep30-21swapper/321:51:503
172162540,0sleep00-21swapper/022:10:010
316752200,0sleep20-21swapper/221:39:552
296892190,0sleep00-21swapper/022:17:010
9882180,0sleep30-21swapper/323:57:223
210522180,0sleep10-21swapper/121:13:271
174452170,0sleep20-21swapper/222:29:532
265552160,0sleep226556-21unixbench_singl21:55:212
161372140,1sleep316132-21gpgv21:50:023
2465599124,1cyclictest141rcu_preempt21:25:112
191992110,0sleep20-21swapper/221:31:342
41112100,3sleep122-21ksoftirqd/123:20:171
298762100,0sleep20-21swapper/222:36:442
2464699109,1cyclictest12-21ksoftirqd/021:30:000
16332100,0sleep20-21swapper/222:20:122
120292100,0sleep10-21swapper/122:06:091
31177290,0sleep20-21swapper/200:35:142
246469998,1cyclictest12-21ksoftirqd/000:00:010
246469990,8cyclictest27930-21ssh00:33:120
246469990,1cyclictest141rcu_preempt20:25:110
246609986,1cyclictest34-21ksoftirqd/320:00:013
246559983,1cyclictest28-21ksoftirqd/221:10:122
246559980,0cyclictest141rcu_preempt00:00:012
246519984,3cyclictest275-21systemd-journal20:51:121
246519980,7cyclictest25517-21ssh21:15:321
246469984,3cyclictest658-21snmpd23:00:130
11041280,0sleep00-21swapper/021:00:170
246609976,1cyclictest34-21ksoftirqd/319:15:003
246609974,2cyclictest504-21dbus-daemon19:20:013
246609973,3cyclictest658-21snmpd00:15:483
246609973,2cyclictest275-21systemd-journal20:21:113
246609973,2cyclictest22097-21libinput-device21:33:533
246609973,1cyclictest0-21swapper/323:05:263
246559975,2cyclictest28-21ksoftirqd/220:25:002
246559975,2cyclictest28-21ksoftirqd/219:40:012
246559975,1cyclictest28-21ksoftirqd/223:45:012
246559974,2cyclictest658-21snmpd22:45:132
246559973,3cyclictest275-21systemd-journal21:20:002
246559972,1cyclictest51250irq/139-enp4s0-22:10:132
246559971,3cyclictest11122-21munin-run23:25:012
246559971,0cyclictest141rcu_preempt00:25:132
246559970,0cyclictest141rcu_preempt23:25:152
246519973,3cyclictest275-21systemd-journal21:05:001
246469973,3cyclictest8705-21cron19:45:010
246469973,3cyclictest658-21snmpd20:46:030
246469973,3cyclictest504-21dbus-daemon21:33:280
246469973,3cyclictest21404-21expr23:50:140
246469973,3cyclictest13596-21ntpq23:45:170
246469970,5cyclictest275-21systemd-journal20:07:110
246469970,1cyclictest141rcu_preempt22:30:120
246609966,0cyclictest0-21swapper/323:20:323
246609966,0cyclictest0-21swapper/321:27:053
246609966,0cyclictest0-21swapper/300:28:223
246609963,2cyclictest658-21snmpd23:14:133
246609963,2cyclictest658-21snmpd21:38:013
246609963,2cyclictest658-21snmpd20:01:563
246609963,2cyclictest658-21snmpd19:43:593
246609963,2cyclictest34-21ksoftirqd/319:30:013
246609963,2cyclictest32345-21ssh21:20:153
246609963,2cyclictest30161-21ssh22:56:313
246609963,2cyclictest28280-21sed23:15:153
246609963,2cyclictest275-21systemd-journal22:11:323
246609963,2cyclictest26004-21ssh23:53:013
246609963,2cyclictest21979-11brltty21:00:223
246609963,2cyclictest1340-21sh00:36:203
246609963,2cyclictest12419-21chrt00:24:093
246609963,2cyclictest0-21swapper/322:00:053
246609963,1cyclictest0-21swapper/300:30:393
246609962,4cyclictest0-21swapper/323:45:193
246609962,3cyclictest9319-21cat19:45:113
246609962,3cyclictest9319-21cat19:45:113
246609962,3cyclictest658-21snmpd23:41:473
246609962,3cyclictest658-21snmpd23:26:353
246609962,3cyclictest658-21snmpd22:39:363
246609962,3cyclictest658-21snmpd22:22:573
246609962,3cyclictest658-21snmpd22:06:363
246609962,3cyclictest658-21snmpd21:11:123
246609962,3cyclictest658-21snmpd20:36:423
246609962,3cyclictest658-21snmpd19:51:233
246609962,3cyclictest30976-21cron20:35:003
246609962,3cyclictest29168-21cat23:35:153
246609962,3cyclictest29168-21cat23:35:153
246609962,3cyclictest275-21systemd-journal22:30:153
246609962,3cyclictest20572-21cat23:30:153
246609962,3cyclictest10243-21ls22:25:153
246609961,3cyclictest275-21systemd-journal21:41:233
246609961,3cyclictest275-21systemd-journal21:41:233
246609961,3cyclictest25536-21rm00:11:573
246609960,6cyclictest0-21swapper/322:53:133
246609960,5cyclictest25184-21unixbench_multi21:15:203
246609960,0cyclictest14494-21diskmemload22:45:243
246559965,1cyclictest28-21ksoftirqd/200:00:012
246559964,1cyclictest14494-21diskmemload00:30:012
246559963,2cyclictest658-21snmpd20:16:382
246559963,2cyclictest4943-21ssh23:00:432
246559963,2cyclictest491-21systemd-logind19:10:182
246559963,2cyclictest29137-21grep20:30:122
246559963,2cyclictest23207-21ssh23:31:372
246559963,2cyclictest19400-21tr23:10:142
246559963,2cyclictest11925-21ssh22:06:042
246559963,1cyclictest0-21swapper/223:45:012
246559962,3cyclictest8368-21cat21:45:142
246559962,3cyclictest658-21snmpd23:18:432
246559962,3cyclictest658-21snmpd22:57:462
246559962,3cyclictest658-21snmpd21:05:482
246559962,3cyclictest658-21snmpd20:57:212
246559962,3cyclictest658-21snmpd19:55:432
246559962,3cyclictest658-21snmpd19:40:382
246559962,3cyclictest658-21snmpd19:17:342
246559962,3cyclictest6051-21expr20:50:142
246559962,3cyclictest275-21systemd-journal21:23:482
246559962,3cyclictest1248-21smart_sda21:40:192
246559962,3cyclictest1248-21smart_sda21:40:182
246559962,1cyclictest51250irq/139-enp4s0-00:12:542
246559962,1cyclictest0-21swapper/223:50:552
246559962,1cyclictest0-21swapper/223:05:192
246559960,6cyclictest0-21swapper/200:15:012
246559960,4cyclictest275-21systemd-journal22:40:132
246559960,1cyclictest141rcu_preempt23:35:122
246559960,1cyclictest141rcu_preempt23:35:122
246559960,1cyclictest141rcu_preempt22:50:202
246559960,1cyclictest141rcu_preempt20:25:152
246559960,1cyclictest141rcu_preempt00:20:132
246559960,1cyclictest141rcu_preempt00:05:132
246559960,0cyclictest141rcu_preempt22:00:142
246559960,0cyclictest141rcu_preempt21:50:032
246519966,0cyclictest0-21swapper/123:56:511
246519966,0cyclictest0-21swapper/122:33:291
246519966,0cyclictest0-21swapper/121:36:131
246519964,1cyclictest21437-21hddtemp_smartct23:50:141
246519963,2cyclictest7431-21cat19:40:171
246519963,2cyclictest658-21snmpd22:02:241
246519963,2cyclictest658-21snmpd19:23:101
246519963,2cyclictest4202-21ssh22:40:361
246519963,2cyclictest3730-21sh00:38:111
246519963,2cyclictest31424-21cut20:35:121
246519963,2cyclictest30404-21ssh21:58:171
246519963,2cyclictest29829-21sh23:15:511
246519963,2cyclictest29223-21ssh22:55:481
246519963,2cyclictest275-21systemd-journal19:10:431
246519963,2cyclictest18605-21ssh00:07:591
246519963,2cyclictest14486-21cron21:10:001
246519963,2cyclictest12812-21sshd19:51:051
246519962,3cyclictest8487-21expr21:45:141
246519962,3cyclictest658-21snmpd23:28:351
246519962,3cyclictest658-21snmpd20:12:261
246519962,3cyclictest658-21snmpd20:09:561
246519962,3cyclictest658-21snmpd19:35:311
246519962,3cyclictest658-21snmpd19:30:131
246519962,3cyclictest658-21snmpd19:29:011
246519962,3cyclictest658-21snmpd00:29:481
246519962,3cyclictest658-21snmpd00:11:121
246519962,3cyclictest28104-21cat20:25:201
246519962,3cyclictest2754-21cut22:20:171
246519962,3cyclictest275-21systemd-journal20:45:471
246519962,3cyclictest26215-21fschecks_count22:15:141
246519962,3cyclictest2550-21sed20:40:191
246519962,3cyclictest16980-21sshd23:47:261
246519962,3cyclictest14084-21cat19:55:151
246519962,3cyclictest11391-21diskstats23:05:131
246519960,6cyclictest0-21swapper/122:26:011
246519960,2cyclictest6909-21grep00:00:191
246519960,0cyclictest0-21swapper/123:34:071
246469966,0cyclictest0-21swapper/023:25:280
246469964,1cyclictest491-21systemd-logind22:20:350
246469963,2cyclictest32662-21ssh00:35:280
246469963,2cyclictest31012-21sshd23:16:440
246469963,2cyclictest30772-21memory00:15:150
246469963,2cyclictest275-21systemd-journal23:42:280
246469963,2cyclictest23577-21rm21:54:230
246469963,2cyclictest19838-21sh22:10:480
246469963,2cyclictest18987-21ssh23:10:030
246469963,2cyclictest14365-21ntpq19:55:170
246469963,2cyclictest1400-21cat22:00:140
246469963,2cyclictest12874-21ssh23:05:280
246469962,3cyclictest658-21snmpd23:38:500
246469962,3cyclictest658-21snmpd23:38:500
246469962,3cyclictest658-21snmpd21:09:090
246469962,3cyclictest658-21snmpd20:40:120
246469962,3cyclictest658-21snmpd20:39:060
246469962,3cyclictest658-21snmpd20:21:050
246469962,3cyclictest658-21snmpd00:20:420
246469962,3cyclictest658-21snmpd00:10:120
246469962,3cyclictest27021-21cat22:35:140
246469962,3cyclictest24472-21cat20:20:000
246469962,3cyclictest14291-21expr00:25:130
246469962,3cyclictest11451-21cat19:50:130
246469962,1cyclictest0-21swapper/021:46:000
246469961,1cyclictest141rcu_preempt20:10:110
246469960,6cyclictest0-21swapper/022:42:470
246469960,6cyclictest0-21swapper/022:26:110
246469960,2cyclictest8950-21/usr/sbin/munin19:45:120
246469960,2cyclictest8950-21/usr/sbin/munin19:45:120
246469960,1cyclictest141rcu_preempt23:30:120
246469960,1cyclictest141rcu_preempt21:55:130
246469960,1cyclictest0-21swapper/023:20:040
246469960,0cyclictest141rcu_preempt23:55:110
246469960,0cyclictest141rcu_preempt22:55:120
246469960,0cyclictest141rcu_preempt21:15:120
246469960,0cyclictest141rcu_preempt21:10:110
246609952,2cyclictest658-21snmpd20:45:093
246609952,2cyclictest658-21snmpd20:05:073
246609952,2cyclictest658-21snmpd19:20:343
246609952,2cyclictest491-21systemd-logind20:55:063
246609952,2cyclictest4527-21cat19:35:143
246609952,2cyclictest27165-21expr20:25:133
246609952,2cyclictest22985-21cat20:15:153
246609952,2cyclictest20885-21memory20:10:163
246609952,2cyclictest1810-21wc20:40:153
246609952,2cyclictest13745-21expr00:05:133
246609952,2cyclictest12501-21find21:05:123
246609952,1cyclictest5836-21apt-get20:50:133
246609951,3cyclictest658-21snmpd23:00:003
246609951,3cyclictest2183-21cstates19:30:133
246609951,3cyclictest2162-21ssh22:40:123
246609950,4cyclictest25349-21grep21:55:133
246559954,1cyclictest10892-21cut21:00:152
246559953,1cyclictest10020-21proc_pri19:45:162
246559953,1cyclictest10020-21proc_pri19:45:162
246559952,2cyclictest30282-21cat19:20:132
246559952,2cyclictest26210-21fschecks_count22:15:142
246559952,2cyclictest2199-21cstates19:30:132
246559952,2cyclictest20066-21/usr/sbin/munin20:10:132
246559952,2cyclictest16058-21uniq20:00:142
246559952,2cyclictest1428-21expr20:40:122
246559951,3cyclictest658-21snmpd19:54:262
246559950,4cyclictest32163-21/usr/sbin/munin19:25:122
246559950,2cyclictest3280-21/usr/sbin/munin20:45:132
246559950,0cyclictest141rcu_preempt20:05:122
246519954,1cyclictest51050irq/138-enp4s0-21:25:111
246519953,1cyclictest19040-21sh23:10:051
246519953,1cyclictest18002-21cut22:10:151
246519952,2cyclictest9647-21cat19:45:131
246519952,2cyclictest9647-21cat19:45:121
246519952,2cyclictest8687-21basename20:55:141
246519952,2cyclictest658-21snmpd00:29:591
246519952,2cyclictest32012-21expr21:20:131
246519952,2cyclictest28325-21ssh23:35:081
246519952,2cyclictest28325-21ssh23:35:071
246519952,2cyclictest24718-21grep20:20:141
246519952,2cyclictest23478-21sendmail_mailtr20:15:181
246519952,2cyclictest21279-21ssh22:51:041
246519952,2cyclictest16813-21cpuspeed_turbos21:50:141
246519952,2cyclictest11263-21load22:45:161
246519951,3cyclictest484-21sed21:40:141
246519951,3cyclictest484-21sed21:40:141
246519951,3cyclictest30154-21cat00:15:121
246519951,3cyclictest27212-21if_enp4s019:15:011
246519951,3cyclictest15737-21/usr/sbin/munin20:00:131
246519950,4cyclictest4070-21smart_sda23:00:191
246519950,1cyclictest5760-21/usr/sbin/munin00:20:151
246519950,1cyclictest0-21swapper/120:30:141
246469953,1cyclictest889-21rt-features19:25:170
246469952,2cyclictest8191-21grep20:55:120
246469952,2cyclictest658-21snmpd20:30:030
246469952,2cyclictest31612-21ssh21:20:030
246469952,2cyclictest28343-21/usr/sbin/munin19:15:150
246469952,2cyclictest25203-21expr19:10:120
246469952,2cyclictest2294-21expr19:30:120
246469952,1cyclictest0-21swapper/022:45:020
246469951,3cyclictest658-21snmpd21:35:070
246469951,3cyclictest658-21snmpd20:50:030
246469951,3cyclictest16708-21/usr/sbin/munin20:00:190
246469951,3cyclictest0-21swapper/000:05:050
246469950,1cyclictest141rcu_preempt19:20:120
246469950,0cyclictest141rcu_preempt19:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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