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2026-08-11 - 16:13
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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 Tue Aug 11, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284252311281,20sleep20-21swapper/207:06:362
284572287257,19sleep10-21swapper/107:07:001
284542262231,21sleep30-21swapper/307:06:583
286902261229,21sleep00-21swapper/007:09:440
141572590,0sleep20-21swapper/211:20:152
93062580,1sleep09308-21grep10:00:210
239932570,0sleep10-21swapper/109:30:381
208922570,0sleep30-21swapper/309:29:403
208922570,0sleep30-21swapper/309:29:403
128712570,2sleep122-21ksoftirqd/111:39:111
247142560,0sleep00-21swapper/010:48:220
289432550,0sleep20-21swapper/209:34:192
49192520,0sleep10-21swapper/109:20:131
9622180,1sleep10-21swapper/107:15:211
179022180,0sleep10-21swapper/109:27:261
179022180,0sleep10-21swapper/109:27:261
11292170,0sleep00-21swapper/009:36:250
33772150,0sleep219057-21diskmemload10:35:192
50552140,0sleep00-21swapper/010:36:090
160012130,0sleep00-21swapper/011:02:070
107912130,0sleep00-21swapper/010:40:130
2884299101,6cyclictest25112-21sh11:07:373
2883399109,1cyclictest22-21ksoftirqd/109:45:011
2882999108,1cyclictest12-21ksoftirqd/012:19:590
288429993,5cyclictest9840-21perf08:50:003
288429991,5cyclictest31636-21ssh12:28:223
288429991,4cyclictest4952-21sh11:34:343
288429991,3cyclictest27846-21rm11:28:433
288429990,6cyclictest9377-21ssh09:22:383
288429990,6cyclictest8672-21ssh12:15:053
288429990,6cyclictest24119-21ssh10:47:553
288429990,3cyclictest21263-21latency_hist11:25:013
288369998,1cyclictest28-21ksoftirqd/209:15:012
288299994,3cyclictest275-21systemd-journal09:15:010
288429985,2cyclictest10398-21apt-get12:35:013
288429983,4cyclictest13930-21cron11:40:013
288429982,1cyclictest19057-21diskmemload09:41:113
288429981,5cyclictest529-21rm09:36:003
288429981,5cyclictest4018-21sh10:16:103
288429981,5cyclictest25341-21ssh12:24:563
288429981,3cyclictest8482-21cstates10:00:143
288429981,3cyclictest5816-21rm11:54:183
288429981,3cyclictest24351-21ssh09:12:383
288429981,3cyclictest19057-21diskmemload10:58:543
288429981,3cyclictest19057-21diskmemload10:28:473
288429981,3cyclictest14584-21ssh11:01:023
288429981,3cyclictest13132-21rm10:40:563
288429980,6cyclictest3154-21ssh12:11:193
288429980,6cyclictest10577-21ssh11:56:323
288429980,5cyclictest30757-21ssh11:10:293
288429980,5cyclictest28614-21ssh09:34:053
288429980,5cyclictest26812-21ssh09:51:413
288429980,5cyclictest22761-21sh11:45:083
288429980,5cyclictest12559-21ssh10:21:173
288429980,5cyclictest10274-21ssh11:18:073
288429980,3cyclictest3831-21ssh12:30:293
288429980,3cyclictest17837-21/usr/sbin/munin10:05:163
288369986,1cyclictest28-21ksoftirqd/207:15:002
288369983,1cyclictest141rcu_preempt12:13:052
288339985,2cyclictest22-21ksoftirqd/111:55:001
288339984,3cyclictest275-21systemd-journal07:50:011
288299984,3cyclictest275-21systemd-journal11:55:250
288299980,1cyclictest14442-21apt-get11:40:120
28661280,1sleep30-21swapper/310:11:373
288429974,2cyclictest17550-21sh12:00:263
288429973,3cyclictest658-21snmpd09:05:123
288429973,3cyclictest6018-21df_inode08:40:133
288429973,3cyclictest3974-21awk07:25:003
288429973,3cyclictest19944-21latency_hist08:00:003
288429973,3cyclictest10729-21cron07:40:013
288429971,4cyclictest2297-21ssh10:35:133
288429971,2cyclictest7762-21cat07:30:213
288429971,2cyclictest31256-21ssh09:16:163
288429971,2cyclictest16483-21ssh09:45:233
288429970,5cyclictest489-21taskset08:25:473
288429970,5cyclictest30612-21ssh10:32:153
288429970,5cyclictest26048-21ssh12:05:303
288429970,3cyclictest16933-21ssh11:40:553
288429970,3cyclictest1066-21ssh10:53:363
288369976,1cyclictest4562-21ssh12:31:022
288369975,2cyclictest28-21ksoftirqd/207:20:012
288369973,3cyclictest9177-21ntpq10:00:192
288369973,3cyclictest275-21systemd-journal08:44:342
288339976,1cyclictest22-21ksoftirqd/112:34:591
288339973,3cyclictest658-21snmpd10:04:361
288339973,3cyclictest275-21systemd-journal08:20:001
288339973,3cyclictest26772-21diskstats10:30:131
288339971,0cyclictest0-21swapper/108:25:151
288299976,1cyclictest12-21ksoftirqd/010:00:010
288299975,2cyclictest12-21ksoftirqd/011:00:010
288299973,3cyclictest658-21snmpd08:46:390
288299973,3cyclictest28400-11brltty09:08:550
288299973,3cyclictest275-21systemd-journal10:22:230
288299971,1cyclictest141rcu_preempt10:11:580
19849270,0sleep20-21swapper/212:02:112
288429963,2cyclictest29686-21cat07:10:153
288429963,2cyclictest275-21systemd-journal08:30:083
288429963,2cyclictest15952-21perl07:50:153
288429963,2cyclictest14383-21mailstats07:45:203
288429962,3cyclictest4444-21expr07:25:133
288429962,3cyclictest4444-21expr07:25:133
288429962,3cyclictest3677-21cat08:35:133
288429962,3cyclictest31462-21munin-node07:15:023
288429962,3cyclictest275-21systemd-journal09:55:123
288429962,3cyclictest27165-21cat08:15:133
288429962,3cyclictest25148-21fschecks_time08:10:153
288429962,3cyclictest22644-21expr08:05:133
288429962,3cyclictest20464-21cat08:00:133
288429962,3cyclictest12628-21expr08:55:143
288429962,3cyclictest11269-21expr07:40:113
288429962,3cyclictest10164-21/usr/sbin/munin08:50:123
288429962,3cyclictest0-21swapper/309:00:123
288429960,6cyclictest0-21swapper/308:20:213
288369966,0cyclictest0-21swapper/212:24:472
288369966,0cyclictest0-21swapper/212:08:112
288369966,0cyclictest0-21swapper/211:48:342
288369966,0cyclictest0-21swapper/211:00:132
288369964,1cyclictest23135-21tr08:05:162
288369963,2cyclictest8323-21ssh09:21:502
288369963,2cyclictest7789-21ssh11:16:132
288369963,2cyclictest663-21runrttasks09:00:112
288369963,2cyclictest658-21snmpd10:59:312
288369963,2cyclictest658-21snmpd10:05:302
288369963,2cyclictest658-21snmpd08:32:332
288369963,2cyclictest560-21gdbus12:15:002
288369963,2cyclictest29375-21sh09:15:172
288369963,2cyclictest275-21systemd-journal09:59:352
288369963,2cyclictest275-21systemd-journal09:52:412
288369963,2cyclictest15550-21cat07:50:142
288369963,2cyclictest14803-21sh09:45:092
288369963,2cyclictest14006-21ssh11:59:092
288369962,3cyclictest658-21snmpd11:13:282
288369962,3cyclictest658-21snmpd10:18:452
288369962,3cyclictest658-21snmpd10:13:422
288369962,3cyclictest29797-21cat08:20:152
288369962,3cyclictest26560-21cat10:30:132
288369962,3cyclictest18077-21sed09:05:172
288369962,3cyclictest10272-21cat10:20:152
288369961,4cyclictest31733-21readlink09:35:222
288369961,4cyclictest271rcuc/212:40:002
288369961,4cyclictest25973-21ssh12:25:122
288369960,6cyclictest0-21swapper/210:25:352
288369960,6cyclictest0-21swapper/209:40:102
288369960,6cyclictest0-21swapper/207:40:182
288369960,2cyclictest663-21runrttasks11:05:042
288369960,2cyclictest13352-21apt-get09:25:112
288369960,2cyclictest13352-21apt-get09:25:112
288339966,0cyclictest0-21swapper/111:45:041
288339966,0cyclictest0-21swapper/110:51:181
288339966,0cyclictest0-21swapper/109:54:241
288339965,1cyclictest22-21ksoftirqd/112:35:011
288339965,1cyclictest22-21ksoftirqd/110:25:011
288339963,2cyclictest7665-21ssh10:57:131
288339963,2cyclictest674-21lldpd11:12:181
288339963,2cyclictest658-21snmpd11:08:191
288339963,2cyclictest658-21snmpd08:08:241
288339963,2cyclictest658-21snmpd07:35:531
288339963,2cyclictest658-21snmpd07:27:171
288339963,2cyclictest658-21snmpd07:27:171
288339963,2cyclictest504-21dbus-daemon11:15:441
288339963,2cyclictest24839-21ssh11:26:251
288339962,3cyclictest7308-21cat07:30:181
288339962,3cyclictest658-21snmpd12:15:031
288339962,3cyclictest658-21snmpd12:11:001
288339962,3cyclictest658-21snmpd11:23:111
288339962,3cyclictest658-21snmpd10:47:191
288339962,3cyclictest658-21snmpd10:38:391
288339962,3cyclictest658-21snmpd09:14:131
288339962,3cyclictest658-21snmpd08:14:091
288339962,3cyclictest658-21snmpd08:04:421
288339962,3cyclictest658-21snmpd07:41:261
288339962,3cyclictest4328-21sshd09:38:491
288339962,3cyclictest15296-21date12:00:001
288339962,1cyclictest0-21swapper/109:15:011
288339960,6cyclictest0-21swapper/110:05:501
288339960,6cyclictest0-21swapper/108:30:121
288339960,5cyclictest25874-21sh10:10:141
288339960,5cyclictest24137-21/usr/sbin/munin12:05:221
288339960,0cyclictest0-21swapper/111:01:171
288339960,0cyclictest0-21swapper/109:46:281
288299963,2cyclictest9868-21mailstats07:35:190
288299963,2cyclictest8285-21sshd07:33:330
288299963,2cyclictest6780-21sh12:32:430
288299963,2cyclictest658-21snmpd11:25:020
288299963,2cyclictest658-21snmpd11:09:220
288299963,2cyclictest6182-21sh10:17:500
288299963,2cyclictest5942-21expr08:40:110
288299963,2cyclictest32046-21ssh11:11:260
288299963,2cyclictest30887-21chrt08:22:500
288299963,2cyclictest30336-21expr11:30:130
288299963,2cyclictest28098-21ssh10:50:160
288299963,2cyclictest2798-21ssh12:11:040
288299963,2cyclictest275-21systemd-journal09:43:540
288299963,2cyclictest25304-21cat08:10:160
288299963,2cyclictest24715-21perl12:05:170
288299963,2cyclictest20499-21expr08:00:130
288299963,2cyclictest16965-21systemctl12:00:200
288299963,2cyclictest13770-21df09:25:130
288299963,2cyclictest13770-21df09:25:120
288299963,2cyclictest0-21swapper/011:51:540
288299962,3cyclictest658-21snmpd12:38:340
288299962,3cyclictest658-21snmpd09:48:300
288299962,3cyclictest658-21snmpd09:20:490
288299962,3cyclictest658-21snmpd07:25:140
288299962,3cyclictest658-21snmpd07:25:140
288299962,3cyclictest658-21snmpd07:22:410
288299962,3cyclictest32282-21awk08:25:200
288299962,3cyclictest275-21systemd-journal08:20:000
288299962,3cyclictest26684-21cat12:25:150
288299962,3cyclictest16819-21expr10:05:110
288299962,2cyclictest275-21systemd-journal07:43:260
288299961,4cyclictest17323-21ssh12:20:000
288299961,2cyclictest14293-21perf09:00:000
288299961,1cyclictest141rcu_preempt11:20:300
288299960,6cyclictest0-21swapper/011:37:290
288299960,6cyclictest0-21swapper/010:34:270
288299960,6cyclictest0-21swapper/007:10:550
288299960,5cyclictest24587-21rt-features09:50:200
288299960,0cyclictest0-21swapper/010:29:160
288369953,1cyclictest663-21runrttasks11:50:432
288369953,1cyclictest24625-21/usr/sbin/munin08:10:142
288369952,2cyclictest9531-21seq08:46:402
288369952,2cyclictest658-21snmpd07:31:202
288369952,2cyclictest6035-21cat11:35:122
288369952,2cyclictest3632-21expr08:35:132
288369952,2cyclictest27698-21cat08:15:162
288369952,2cyclictest27326-21ssh10:50:072
288369952,2cyclictest2296-21expr07:20:132
288369952,2cyclictest22581-21cat11:25:182
288369952,2cyclictest18777-21grep07:55:182
288369952,2cyclictest13509-21cat07:45:142
288369952,2cyclictest12621-21expr08:55:132
288369952,2cyclictest11023-21ntp_kernel_pll_08:50:172
288369952,2cyclictest10480-21ssh10:40:062
288369952,1cyclictest0-21swapper/211:30:132
288369951,3cyclictest9101-21grep07:35:142
288369951,3cyclictest658-21snmpd08:25:032
288369951,3cyclictest4577-21cstates07:25:142
288369951,3cyclictest4577-21cstates07:25:142
288369951,3cyclictest21173-21ntp_states08:00:182
288369951,3cyclictest15597-21grep11:40:182
288369950,2cyclictest18946-21/usr/sbin/munin10:45:152
288339954,0cyclictest22-21ksoftirqd/110:15:131
288339952,2cyclictest658-21snmpd08:47:031
288339952,2cyclictest658-21snmpd08:20:031
288339952,2cyclictest658-21snmpd07:11:321
288339952,2cyclictest31799-21ssh09:55:141
288339952,2cyclictest18356-21df07:55:141
288339952,2cyclictest18304-21cat12:20:141
288339952,2cyclictest17028-21gdbus09:05:011
288339952,2cyclictest16325-21gltestperf12:00:161
288339952,2cyclictest15517-21uname11:40:171
288339952,2cyclictest10441-21ls08:50:121
288339951,3cyclictest7023-21wc08:40:191
288339951,3cyclictest658-21snmpd08:57:101
288339951,3cyclictest504-21dbus-daemon12:25:001
288339951,3cyclictest29911-21ssh11:30:051
288339951,3cyclictest2312-21ls07:20:131
288339951,3cyclictest16425-21/usr/sbin/munin07:50:181
288339951,3cyclictest10709-21/usr/sbin/munin10:40:121
288339950,5cyclictest0-21swapper/109:00:231
288339950,4cyclictest17947-21/usr/sbin/munin10:25:141
288339950,2cyclictest5366-21latency_hist08:40:011
288299953,1cyclictest491-21systemd-logind08:06:220
288299953,1cyclictest31523-21gltestperf07:15:020
288299952,2cyclictest658-21snmpd09:30:130
288299952,2cyclictest658-21snmpd08:35:060
288299952,2cyclictest5533-21gltestperf11:15:150
288299952,2cyclictest15301-21cat09:00:160
288299952,1cyclictest0-21swapper/009:10:150
288299951,3cyclictest658-21snmpd08:30:210
288299951,3cyclictest18398-21fschecks_count07:55:160
288299951,3cyclictest11158-21grep08:50:180
288299950,4cyclictest13212-21/usr/sbin/munin07:45:170
288299950,4cyclictest0-21swapper/011:45:130
288299950,3cyclictest275-21systemd-journal07:50:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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