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2026-03-23 - 17:48
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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 Mon Mar 23, 2026 12:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71680rcu_preempt20405-21kworker/3:011:32:043
71680rcu_preempt20405-21kworker/3:011:32:043
1609099623cyclictest0-21swapper/010:32:060
1609099623cyclictest0-21swapper/010:32:060
1609099582cyclictest26106-21memory09:27:180
1609099582cyclictest26106-21memory09:27:180
71540rcu_preempt0-21swapper/209:23:212
71540rcu_preempt0-21swapper/209:23:212
1609099544cyclictest0-21swapper/011:42:200
1609099544cyclictest0-21swapper/011:42:200
1609099544cyclictest0-21swapper/011:42:200
1609099534cyclictest0-21swapper/012:24:430
1609099534cyclictest0-21swapper/012:24:430
1609099534cyclictest0-21swapper/012:24:430
1609099534cyclictest0-21swapper/008:47:080
1609099534cyclictest0-21swapper/008:47:080
1609099534cyclictest0-21swapper/008:47:080
1609099533cyclictest2363-21ntp_states09:42:190
1609099533cyclictest2363-21ntp_states09:42:190
1609099533cyclictest2363-21ntp_states09:42:190
1609099532cyclictest4994-21meminfo08:27:140
1609099532cyclictest4994-21meminfo08:27:140
1609099529cyclictest15651-21apt-get10:07:070
1609099529cyclictest15651-21apt-get10:07:070
1609099529cyclictest15651-21apt-get10:07:070
1609099524cyclictest0-21swapper/010:53:270
1609099524cyclictest0-21swapper/010:53:270
1609099524cyclictest0-21swapper/010:22:250
1609099524cyclictest0-21swapper/010:22:250
1609099524cyclictest0-21swapper/010:22:250
1609099523cyclictest0-21swapper/012:02:360
1609099523cyclictest0-21swapper/012:02:360
1609099523cyclictest0-21swapper/012:02:360
1609099522cyclictest30154-21aten_r4power_vo08:02:080
1609099522cyclictest30154-21aten_r4power_vo08:02:080
1609099514cyclictest0-21swapper/011:05:080
1609099514cyclictest0-21swapper/011:05:080
1609099514cyclictest0-21swapper/010:17:160
1609099514cyclictest0-21swapper/010:17:160
1609099514cyclictest0-21swapper/010:17:160
1609099513cyclictest0-21swapper/012:09:080
1609099513cyclictest0-21swapper/012:09:080
1609099513cyclictest0-21swapper/010:27:150
1609099513cyclictest0-21swapper/010:27:150
1609099513cyclictest0-21swapper/009:52:240
1609099513cyclictest0-21swapper/009:52:240
1609099513cyclictest0-21swapper/007:52:190
1609099513cyclictest0-21swapper/007:52:190
1609099512cyclictest5477-21ssh12:41:570
1609099512cyclictest5477-21ssh12:41:570
1609099512cyclictest410-21/usr/sbin/munin10:37:170
1609099512cyclictest410-21/usr/sbin/munin10:37:170
1609099512cyclictest410-21/usr/sbin/munin10:37:170
1609099512cyclictest12810-21sendmail-msp10:02:090
1609099512cyclictest12810-21sendmail-msp10:02:090
1609099511cyclictest8756-21apt-get08:42:060
1609099511cyclictest8756-21apt-get08:42:060
1609099511cyclictest8756-21apt-get08:42:060
1609099504cyclictest14061-1kworker/0:0H11:22:230
1609099504cyclictest14061-1kworker/0:0H11:22:230
1609099504cyclictest14061-1kworker/0:0H11:22:230
1609099504cyclictest0-21swapper/011:57:310
1609099504cyclictest0-21swapper/011:57:310
1609099504cyclictest0-21swapper/007:29:370
1609099504cyclictest0-21swapper/007:29:370
1609099503cyclictest0-21swapper/012:22:010
1609099503cyclictest0-21swapper/012:22:010
1609099503cyclictest0-21swapper/011:35:540
1609099503cyclictest0-21swapper/011:35:540
1609099503cyclictest0-21swapper/011:20:060
1609099503cyclictest0-21swapper/011:20:060
1609099503cyclictest0-21swapper/011:20:060
1609099503cyclictest0-21swapper/011:12:140
1609099503cyclictest0-21swapper/011:12:140
1609099503cyclictest0-21swapper/011:12:140
1609099503cyclictest0-21swapper/011:11:050
1609099503cyclictest0-21swapper/011:11:050
1609099503cyclictest0-21swapper/011:11:050
1609099503cyclictest0-21swapper/010:45:280
1609099503cyclictest0-21swapper/010:45:280
1609099503cyclictest0-21swapper/010:45:280
1609099503cyclictest0-21swapper/009:41:270
1609099503cyclictest0-21swapper/009:41:270
1609099503cyclictest0-21swapper/009:41:270
1609099503cyclictest0-21swapper/009:41:270
1609099503cyclictest0-21swapper/009:22:380
1609099503cyclictest0-21swapper/009:22:380
1609099503cyclictest0-21swapper/008:32:130
1609099503cyclictest0-21swapper/008:32:130
1609099502cyclictest28397-21diskstats11:27:140
1609099502cyclictest28397-21diskstats11:27:140
1609099502cyclictest28397-21diskstats11:27:140
1609099502cyclictest1445-21wget11:37:070
1609099502cyclictest1445-21wget11:37:070
1609099502cyclictest1445-21wget11:37:070
16090995017cyclictest19255-21irqstats07:22:130
16090995017cyclictest19255-21irqstats07:22:130
16090995016cyclictest7556-21ntp_states11:47:210
16090995016cyclictest7556-21ntp_states11:47:210
1609099494cyclictest0-21swapper/009:47:250
1609099494cyclictest0-21swapper/009:47:250
1609099493cyclictest0-21swapper/012:33:150
1609099493cyclictest0-21swapper/012:33:150
1609099493cyclictest0-21swapper/010:57:220
1609099493cyclictest0-21swapper/010:57:220
1609099493cyclictest0-21swapper/010:57:220
1609099493cyclictest0-21swapper/010:16:140
1609099493cyclictest0-21swapper/010:16:140
1609099493cyclictest0-21swapper/009:02:080
1609099493cyclictest0-21swapper/009:02:080
1609099493cyclictest0-21swapper/008:57:100
1609099493cyclictest0-21swapper/008:57:100
1609099493cyclictest0-21swapper/008:21:550
1609099493cyclictest0-21swapper/008:21:550
1609099493cyclictest0-21swapper/008:21:550
1609099492cyclictest30407-21users12:27:240
1609099492cyclictest30407-21users12:27:240
1609099492cyclictest30407-21users12:27:240
1609099492cyclictest22795-21munin-run09:21:550
1609099492cyclictest22795-21munin-run09:21:550
1609099492cyclictest22795-21munin-run09:21:550
1609099483cyclictest0-21swapper/011:55:000
1609099483cyclictest0-21swapper/011:55:000
1609099483cyclictest0-21swapper/010:47:380
1609099483cyclictest0-21swapper/010:47:380
1609099483cyclictest0-21swapper/009:12:150
1609099483cyclictest0-21swapper/009:12:150
1609099482cyclictest29883-21munin-run08:01:540
1609099482cyclictest29883-21munin-run08:01:540
1609099482cyclictest16347-21grep09:07:220
1609099482cyclictest16347-21grep09:07:220
1609099474cyclictest0-21swapper/009:34:250
1609099474cyclictest0-21swapper/009:34:250
1609099474cyclictest0-21swapper/009:34:250
1609099473cyclictest0-21swapper/008:52:090
1609099473cyclictest0-21swapper/008:52:090
1609099463cyclictest0-21swapper/012:12:100
1609099463cyclictest0-21swapper/012:12:100
1609099462cyclictest1959-21runrttasks07:15:280
1609099462cyclictest1959-21runrttasks07:15:280
1609099462cyclictest1959-21runrttasks07:15:280
1609099462cyclictest0-21swapper/008:07:120
1609099462cyclictest0-21swapper/008:07:120
16090994616cyclictest0-21swapper/009:57:030
16090994616cyclictest0-21swapper/009:57:030
16090994613cyclictest24497-21apt-get07:42:060
16090994613cyclictest24497-21apt-get07:42:060
1609199453cyclictest0-21swapper/109:42:511
1609199453cyclictest0-21swapper/109:42:511
1609199453cyclictest0-21swapper/109:42:511
1609199452cyclictest3726-21ntp_states08:22:201
1609199452cyclictest3726-21ntp_states08:22:201
1609099453cyclictest0-21swapper/007:21:540
1609099453cyclictest0-21swapper/007:21:540
1609099453cyclictest0-21swapper/007:21:540
1609099452cyclictest0-21swapper/008:24:460
1609099452cyclictest0-21swapper/008:24:460
1609099452cyclictest0-21swapper/007:39:130
1609099452cyclictest0-21swapper/007:39:130
1609099452cyclictest0-21swapper/007:39:130
71440rcu_preempt21714-21runrttasks11:15:112
71440rcu_preempt21714-21runrttasks11:15:112
71440rcu_preempt21714-21runrttasks11:15:112
71440rcu_preempt12810-21sendmail-msp10:02:392
71440rcu_preempt12810-21sendmail-msp10:02:392
46050440irq/122-QManpo0-210
46050440irq/122-QManpo0-210
46050440irq/122-QManpo0-210
1609199444cyclictest0-21swapper/109:06:541
1609199444cyclictest0-21swapper/109:06:541
1609099442cyclictest1959-21runrttasks08:37:060
1609099442cyclictest1959-21runrttasks08:37:060
1609099442cyclictest1959-21runrttasks08:37:060
1609199433cyclictest0-21swapper/112:07:111
1609199433cyclictest0-21swapper/112:07:111
1609199433cyclictest0-21swapper/109:17:221
1609199433cyclictest0-21swapper/109:17:221
1609199433cyclictest0-21swapper/109:17:221
1609199432cyclictest30348-21irqstats08:02:151
1609199432cyclictest30348-21irqstats08:02:151
1609199432cyclictest10505-21/usr/sbin/munin09:57:131
1609199432cyclictest10505-21/usr/sbin/munin09:57:131
1609199432cyclictest0-21swapper/107:36:151
1609199432cyclictest0-21swapper/107:36:151
1609199431cyclictest28439-21/usr/sbin/munin09:32:081
1609199431cyclictest28439-21/usr/sbin/munin09:32:081
1609199431cyclictest28439-21/usr/sbin/munin09:32:081
1609099431cyclictest21714-21/usr/sbin/munin07:32:110
1609099431cyclictest21714-21/usr/sbin/munin07:32:110
71420rcu_preempt30820-21sh11:31:572
71420rcu_preempt30820-21sh11:31:572
71420rcu_preempt30820-21sh11:31:572
71420rcu_preempt0-21swapper/211:51:182
71420rcu_preempt0-21swapper/211:51:182
71420rcu_preempt0-21swapper/109:53:551
71420rcu_preempt0-21swapper/109:53:551
1609199424cyclictest0-21swapper/112:27:131
1609199424cyclictest0-21swapper/112:27:131
1609199424cyclictest0-21swapper/112:27:131
1609199424cyclictest0-21swapper/111:46:561
1609199424cyclictest0-21swapper/111:46:561
1609199424cyclictest0-21swapper/111:46:561
1609199424cyclictest0-21swapper/111:37:081
1609199424cyclictest0-21swapper/111:37:081
1609199424cyclictest0-21swapper/111:37:081
1609199424cyclictest0-21swapper/107:42:191
1609199424cyclictest0-21swapper/107:42:191
1609199423cyclictest0-21swapper/109:12:211
1609199423cyclictest0-21swapper/109:12:211
1609199423cyclictest0-21swapper/109:07:151
1609199423cyclictest0-21swapper/109:07:151
1609199422cyclictest4296-1kworker/1:3H11:02:141
1609199422cyclictest4296-1kworker/1:3H11:02:141
1609199422cyclictest31622-21ssh10:35:021
1609199422cyclictest31622-21ssh10:35:021
1609199422cyclictest17376-21meminfo11:07:201
1609199422cyclictest17376-21meminfo11:07:201
1609199422cyclictest17376-21meminfo11:07:201
1609199421cyclictest26224-21latency07:47:141
1609199421cyclictest26224-21latency07:47:141
1609199421cyclictest23576-21awk07:37:171
1609199421cyclictest23576-21awk07:37:171
1609199421cyclictest23576-21awk07:37:171
1609099427cyclictest26614-21/usr/sbin/munin07:47:220
1609099427cyclictest26614-21/usr/sbin/munin07:47:220
1609099423cyclictest1268-21users08:12:220
1609099423cyclictest1268-21users08:12:220
1609099423cyclictest1268-21users08:12:220
71410rcu_preempt3026-21kworker/1:410:54:021
71410rcu_preempt3026-21kworker/1:410:54:021
71410rcu_preempt0-21swapper/207:40:412
71410rcu_preempt0-21swapper/207:40:412
71410rcu_preempt0-21swapper/207:40:412
71410rcu_preempt0-21swapper/111:27:171
71410rcu_preempt0-21swapper/111:27:171
71410rcu_preempt0-21swapper/111:27:171
1609199414cyclictest0-21swapper/111:32:151
1609199414cyclictest0-21swapper/111:32:151
1609199414cyclictest0-21swapper/109:26:261
1609199414cyclictest0-21swapper/109:26:261
1609199413cyclictest0-21swapper/110:57:141
1609199413cyclictest0-21swapper/110:57:141
1609199413cyclictest0-21swapper/110:57:141
1609199413cyclictest0-21swapper/110:12:141
1609199413cyclictest0-21swapper/110:12:141
1609199413cyclictest0-21swapper/109:27:501
1609199413cyclictest0-21swapper/109:27:501
1609199413cyclictest0-21swapper/107:57:071
1609199413cyclictest0-21swapper/107:57:071
1609199412cyclictest5918-21df_inode10:47:081
1609199412cyclictest5918-21df_inode10:47:081
1609199412cyclictest4593-21/usr/sbin/munin08:27:131
1609199412cyclictest4593-21/usr/sbin/munin08:27:131
1609199412cyclictest27380-21ntp_states12:22:201
1609199412cyclictest27380-21ntp_states12:22:201
1609199412cyclictest27380-21ntp_states12:22:201
1609199412cyclictest24468-21df_inode10:22:111
1609199412cyclictest24468-21df_inode10:22:111
1609199412cyclictest24468-21df_inode10:22:111
1609199412cyclictest16529-21users12:02:251
1609199412cyclictest16529-21users12:02:251
1609199412cyclictest16529-21users12:02:251
1609199411cyclictest3118-21aten_r4power_po10:42:091
1609199411cyclictest3118-21aten_r4power_po10:42:091
1609199411cyclictest3118-21aten_r4power_po10:42:091
1609199411cyclictest22559-21/usr/sbin/munin11:17:201
1609199411cyclictest22559-21/usr/sbin/munin11:17:201
1609199411cyclictest22559-21/usr/sbin/munin11:17:201
71400rcu_preempt0-21swapper/211:56:182
71400rcu_preempt0-21swapper/211:56:182
71400rcu_preempt0-21swapper/209:42:282
71400rcu_preempt0-21swapper/209:42:282
71400rcu_preempt0-21swapper/209:42:282
71400rcu_preempt0-21swapper/209:16:272
71400rcu_preempt0-21swapper/209:16:272
1609199404cyclictest0-21swapper/108:42:161
1609199404cyclictest0-21swapper/108:42:161
1609199404cyclictest0-21swapper/108:42:161
1609199404cyclictest0-21swapper/108:21:551
1609199404cyclictest0-21swapper/108:21:551
1609199404cyclictest0-21swapper/108:21:551
1609199403cyclictest32510-21df_inode12:32:091
1609199403cyclictest32510-21df_inode12:32:091
1609199403cyclictest19352-21meminfo07:22:151
1609199403cyclictest19352-21meminfo07:22:151
1609199403cyclictest0-21swapper/112:12:061
1609199403cyclictest0-21swapper/112:12:061
1609199403cyclictest0-21swapper/111:57:171
1609199403cyclictest0-21swapper/111:57:171
1609199403cyclictest0-21swapper/111:55:281
1609199403cyclictest0-21swapper/111:55:281
1609199403cyclictest0-21swapper/111:23:151
1609199403cyclictest0-21swapper/111:23:151
1609199403cyclictest0-21swapper/111:23:151
1609199403cyclictest0-21swapper/110:28:041
1609199403cyclictest0-21swapper/110:28:041
1609199403cyclictest0-21swapper/110:02:531
1609199403cyclictest0-21swapper/110:02:531
1609199403cyclictest0-21swapper/108:37:071
1609199403cyclictest0-21swapper/108:37:071
1609199403cyclictest0-21swapper/108:37:071
1609199403cyclictest0-21swapper/107:56:021
1609199403cyclictest0-21swapper/107:56:021
1609199402cyclictest21151-21latency_hist10:17:001
1609199402cyclictest21151-21latency_hist10:17:001
1609199402cyclictest21151-21latency_hist10:17:001
1609199402cyclictest1959-21runrttasks08:32:121
1609199402cyclictest1959-21runrttasks08:32:121
1609199402cyclictest0-21swapper/109:51:591
1609199402cyclictest0-21swapper/109:51:591
1609199401cyclictest5100-21ssh12:41:081
1609199401cyclictest5100-21ssh12:41:081
1609199401cyclictest15998-21latency_hist07:12:001
1609199401cyclictest15998-21latency_hist07:12:001
71390rcu_preempt0-21swapper/211:07:212
71390rcu_preempt0-21swapper/211:07:212
71390rcu_preempt0-21swapper/211:07:212
71390rcu_preempt0-21swapper/210:52:252
71390rcu_preempt0-21swapper/210:52:252
71390rcu_preempt0-21swapper/209:40:552
71390rcu_preempt0-21swapper/209:40:552
71390rcu_preempt0-21swapper/209:40:552
71390rcu_preempt0-21swapper/209:40:552
1609199394cyclictest0-21swapper/109:37:141
1609199394cyclictest0-21swapper/109:37:141
1609199394cyclictest0-21swapper/109:37:141
1609199394cyclictest0-21swapper/109:37:141
1609199393cyclictest0-21swapper/110:37:111
1609199393cyclictest0-21swapper/110:37:111
1609199393cyclictest0-21swapper/110:37:111
1609199392cyclictest897-21ntp_states08:12:181
1609199392cyclictest897-21ntp_states08:12:181
1609199392cyclictest897-21ntp_states08:12:181
1609199392cyclictest7332-21irqstats11:47:161
1609199392cyclictest7332-21irqstats11:47:161
1609199392cyclictest25300-21ssh12:18:291
1609199392cyclictest25300-21ssh12:18:291
1609199392cyclictest1959-21runrttasks08:09:271
1609199392cyclictest1959-21runrttasks08:09:271
1609199391cyclictest19985-21/usr/sbin/munin11:12:131
1609199391cyclictest19985-21/usr/sbin/munin11:12:131
1609199391cyclictest19985-21/usr/sbin/munin11:12:131
16091993913cyclictest15831-21df10:07:101
16091993913cyclictest15831-21df10:07:101
16091993913cyclictest15831-21df10:07:101
71380rcu_preempt2880-21copy10:42:062
71380rcu_preempt2880-21copy10:42:062
71380rcu_preempt2880-21copy10:42:062
71380rcu_preempt0-21swapper/212:27:172
71380rcu_preempt0-21swapper/212:27:172
71380rcu_preempt0-21swapper/212:27:172
71380rcu_preempt0-21swapper/212:23:262
71380rcu_preempt0-21swapper/212:23:262
71380rcu_preempt0-21swapper/212:23:262
1609199382cyclictest1959-21runrttasks08:55:171
1609199382cyclictest1959-21runrttasks08:55:171
1609199382cyclictest17781-21df_inode07:17:101
1609199382cyclictest17781-21df_inode07:17:101
1609199382cyclictest17781-21df_inode07:17:101
1609199381cyclictest1959-21runrttasks08:50:541
1609199381cyclictest1959-21runrttasks08:50:541
1609199381cyclictest1959-21runrttasks08:50:541
1609199381cyclictest12901-21/usr/sbin/munin08:57:171
1609199381cyclictest12901-21/usr/sbin/munin08:57:171
71370rcu_preempt7700-21ssh09:52:172
71370rcu_preempt7700-21ssh09:52:172
71370rcu_preempt0-21swapper/212:41:572
71370rcu_preempt0-21swapper/212:41:572
71370rcu_preempt0-21swapper/212:07:142
71370rcu_preempt0-21swapper/212:07:142
71370rcu_preempt0-21swapper/209:18:502
71370rcu_preempt0-21swapper/209:18:502
71370rcu_preempt0-21swapper/209:18:502
71370rcu_preempt0-21swapper/209:07:142
71370rcu_preempt0-21swapper/209:07:142
71370rcu_preempt0-21swapper/207:17:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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