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2026-06-25 - 03:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 all highest latencies:
System rack8slot6s.osadl.org (updated Thu Jun 25, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28307992019,1cyclictest65850irq/126-lan19:55:140
28313991919,0cyclictest743-21snmpd19:52:281
28307991919,0cyclictest65850irq/126-lan00:27:180
28313991818,0cyclictest743-21snmpd23:35:441
28313991818,0cyclictest743-21snmpd23:28:501
28313991818,0cyclictest743-21snmpd21:35:111
28313991818,0cyclictest743-21snmpd21:33:131
28313991818,0cyclictest743-21snmpd00:24:471
28307991818,0cyclictest65850irq/126-lan23:20:000
28307991818,0cyclictest65850irq/126-lan22:25:420
28307991818,0cyclictest65850irq/126-lan22:15:100
28307991817,1cyclictest65850irq/126-lan23:40:180
28307991817,1cyclictest65850irq/126-lan22:00:190
28307991817,1cyclictest65850irq/126-lan21:00:190
28307991817,1cyclictest65850irq/126-lan20:00:170
28307991817,1cyclictest65850irq/126-lan19:29:270
28307991817,1cyclictest65850irq/126-lan00:00:180
28313991717,0cyclictest743-21snmpd22:42:561
28313991717,0cyclictest743-21snmpd20:12:241
28307991717,0cyclictest65850irq/126-lan22:51:420
28307991717,0cyclictest65850irq/126-lan19:23:050
28307991716,1cyclictest65850irq/126-lan23:50:150
28307991716,1cyclictest65850irq/126-lan23:20:160
28307991716,1cyclictest65850irq/126-lan21:35:140
28307991716,1cyclictest65850irq/126-lan21:20:130
28307991716,1cyclictest65850irq/126-lan20:15:140
28307991716,1cyclictest65850irq/126-lan20:05:190
28307991616,0cyclictest65850irq/126-lan23:55:090
28307991616,0cyclictest65850irq/126-lan23:35:110
28307991616,0cyclictest65850irq/126-lan22:07:420
28307991616,0cyclictest65850irq/126-lan21:57:430
28307991616,0cyclictest65850irq/126-lan20:25:150
28307991616,0cyclictest65850irq/126-lan00:35:210
28307991615,1cyclictest65850irq/126-lan23:45:210
28307991615,1cyclictest65850irq/126-lan23:25:110
28307991615,1cyclictest65850irq/126-lan23:05:110
28307991615,1cyclictest65850irq/126-lan23:00:150
28307991615,1cyclictest65850irq/126-lan22:45:150
28307991615,1cyclictest65850irq/126-lan22:20:120
28307991615,1cyclictest65850irq/126-lan22:10:210
28307991615,1cyclictest65850irq/126-lan19:40:430
28313991515,0cyclictest743-21snmpd23:05:411
28313991515,0cyclictest743-21snmpd19:34:361
28307991515,0cyclictest65850irq/126-lan22:40:140
28307991515,0cyclictest65850irq/126-lan00:20:120
28307991515,0cyclictest65850irq/126-lan00:15:170
28307991514,1cyclictest65850irq/126-lan23:30:180
28307991514,1cyclictest65850irq/126-lan21:40:190
28307991514,1cyclictest65850irq/126-lan20:45:030
28307991514,1cyclictest65850irq/126-lan20:10:160
28307991514,1cyclictest65850irq/126-lan19:50:010
28307991514,1cyclictest65850irq/126-lan19:35:130
28307991514,1cyclictest65850irq/126-lan19:30:210
28307991514,1cyclictest65850irq/126-lan00:13:510
28307991414,0cyclictest65850irq/126-lan22:37:420
28307991414,0cyclictest65850irq/126-lan21:13:430
28307991414,0cyclictest65850irq/126-lan20:55:190
28307991413,1cyclictest65850irq/126-lan23:10:200
28307991413,1cyclictest65850irq/126-lan21:45:210
28307991413,1cyclictest65850irq/126-lan21:30:100
28307991413,1cyclictest65850irq/126-lan21:05:160
28307991413,1cyclictest65850irq/126-lan20:50:120
28307991413,1cyclictest65850irq/126-lan20:40:120
28307991413,1cyclictest65850irq/126-lan20:20:150
28307991313,0cyclictest65850irq/126-lan21:15:180
28307991313,0cyclictest65850irq/126-lan19:15:130
28307991313,0cyclictest65850irq/126-lan00:30:130
28307991212,0cyclictest65850irq/126-lan22:30:140
28307991212,0cyclictest65850irq/126-lan21:25:120
28307991211,1cyclictest65850irq/126-lan22:55:120
28307991111,0cyclictest65850irq/126-lan20:34:230
28307991111,0cyclictest65850irq/126-lan20:34:230
28307991110,1cyclictest65850irq/126-lan20:35:270
28307991110,1cyclictest65850irq/126-lan19:45:200
2832099105,2cyclictest31319-21ntp_offset19:15:162
28307991010,0cyclictest65850irq/126-lan21:50:120
28307991010,0cyclictest65850irq/126-lan00:05:130
283249998,1cyclictest743-21snmpd21:45:263
283249998,1cyclictest743-21snmpd20:58:513
283209998,1cyclictest743-21snmpd22:11:282
283209998,1cyclictest743-21snmpd19:57:552
283209998,0cyclictest191rcu_preempt23:10:172
283209997,0cyclictest191rcu_preempt21:10:212
283209997,0cyclictest191rcu_preempt20:30:172
283209997,0cyclictest191rcu_preempt20:30:172
283209995,2cyclictest743-21snmpd19:51:372
283209993,3cyclictest43-21ksoftirqd/219:20:202
283139998,1cyclictest743-21snmpd00:31:441
283249988,0cyclictest741-21lldpd22:01:313
283249988,0cyclictest741-21lldpd21:12:403
283249988,0cyclictest741-21lldpd20:20:503
283249987,1cyclictest743-21snmpd21:36:273
283249987,1cyclictest743-21snmpd21:34:293
283249987,1cyclictest743-21snmpd20:50:403
283249987,1cyclictest743-21snmpd19:44:013
283249986,2cyclictest743-21snmpd22:19:363
283249986,2cyclictest743-21snmpd21:23:323
283249986,2cyclictest743-21snmpd00:20:223
283249986,2cyclictest743-21snmpd00:06:213
283209988,0cyclictest743-21snmpd21:49:562
283209988,0cyclictest741-21lldpd23:21:442
283209988,0cyclictest741-21lldpd20:41:322
283209987,1cyclictest741-21lldpd23:49:202
283209987,0cyclictest191rcu_preempt00:10:002
283209986,2cyclictest743-21snmpd23:00:532
283209986,2cyclictest743-21snmpd00:31:592
283209986,2cyclictest21817-21cat22:50:142
283209986,0cyclictest191rcu_preempt23:15:172
283209985,2cyclictest0-21swapper/200:25:162
283209984,2cyclictest0-21swapper/219:27:422
283209981,3cyclictest9297-21cpuspeed_turbos23:40:112
283209980,5cyclictest23340-21df20:15:132
283139988,0cyclictest743-21snmpd22:37:551
283139988,0cyclictest741-21lldpd20:41:341
283139988,0cyclictest741-21lldpd00:35:281
283139988,0cyclictest741-21lldpd00:11:091
283139987,1cyclictest743-21snmpd22:27:461
283139987,1cyclictest743-21snmpd21:44:061
283139987,1cyclictest743-21snmpd21:02:571
283139986,2cyclictest743-21snmpd20:07:111
283139986,2cyclictest743-21snmpd19:24:181
283079987,1cyclictest743-21snmpd19:13:480
283249977,0cyclictest743-21snmpd23:24:323
283249977,0cyclictest743-21snmpd21:52:513
283249977,0cyclictest743-21snmpd20:35:303
283249977,0cyclictest743-21snmpd20:25:183
283249977,0cyclictest743-21snmpd00:29:103
283249977,0cyclictest743-21snmpd00:17:173
283249977,0cyclictest743-21snmpd00:14:543
283249977,0cyclictest741-21lldpd23:07:483
283249977,0cyclictest741-21lldpd22:45:223
283249977,0cyclictest741-21lldpd21:19:373
283249977,0cyclictest741-21lldpd21:09:433
283249977,0cyclictest741-21lldpd20:48:323
283249977,0cyclictest741-21lldpd19:52:043
283249976,1cyclictest743-21snmpd22:07:363
283249976,1cyclictest743-21snmpd19:12:273
283249976,1cyclictest506-21systemd-resolve23:58:093
283249976,1cyclictest20805-21idleruntime-cro21:29:593
283249975,2cyclictest743-21snmpd23:13:273
283249975,2cyclictest743-21snmpd00:36:103
283249974,3cyclictest743-21snmpd19:30:093
283209977,0cyclictest741-21lldpd19:35:342
283209977,0cyclictest741-21lldpd19:13:532
283209977,0cyclictest741-21lldpd00:00:182
283209976,1cyclictest9171-21fschecks_count21:00:122
283209976,1cyclictest743-21snmpd21:39:442
283209976,1cyclictest743-21snmpd21:22:142
283209976,1cyclictest741-21lldpd22:48:402
283209976,1cyclictest573-21in:imuxsock00:20:312
283209976,1cyclictest522-21avahi-daemon00:05:202
283209976,0cyclictest191rcu_preempt22:04:592
283209976,0cyclictest191rcu_preempt19:42:402
283209975,2cyclictest743-21snmpd21:59:362
283209975,2cyclictest743-21snmpd21:15:462
283209975,2cyclictest743-21snmpd20:13:212
283209975,2cyclictest717-21ntpd20:20:172
283209975,2cyclictest3498-21head23:25:132
283209974,1cyclictest43-21ksoftirqd/220:05:172
283209974,1cyclictest191rcu_preempt22:35:152
283209974,1cyclictest191rcu_preempt22:15:182
283209974,0cyclictest191rcu_preempt19:45:112
283209973,2cyclictest43-21ksoftirqd/222:30:282
283209973,2cyclictest0-21swapper/221:29:592
283209972,3cyclictest43-21ksoftirqd/221:05:172
283209972,2cyclictest5680-21cat23:30:142
283209972,2cyclictest43-21ksoftirqd/220:00:172
283209970,5cyclictest24153-21ntpq22:55:172
283139977,0cyclictest743-21snmpd23:19:301
283139977,0cyclictest741-21lldpd23:00:511
283139977,0cyclictest741-21lldpd22:17:051
283139977,0cyclictest741-21lldpd22:09:051
283139977,0cyclictest741-21lldpd19:43:071
283139977,0cyclictest741-21lldpd00:17:481
283139976,1cyclictest743-21snmpd23:50:271
283139976,1cyclictest743-21snmpd20:47:421
283139976,1cyclictest741-21lldpd22:00:191
283139976,1cyclictest522-21avahi-daemon20:00:161
283139975,2cyclictest743-21snmpd21:27:441
283139975,2cyclictest743-21snmpd20:50:221
283139975,2cyclictest743-21snmpd20:30:561
283139975,2cyclictest743-21snmpd20:30:561
283139975,2cyclictest717-21ntpd21:15:131
283139975,2cyclictest717-21ntpd20:35:121
283139975,2cyclictest11636-21cat23:45:141
283249966,0cyclictest743-21snmpd19:55:343
283249966,0cyclictest741-21lldpd22:28:513
283249966,0cyclictest741-21lldpd20:42:143
283249966,0cyclictest741-21lldpd19:47:133
283249966,0cyclictest522-21avahi-daemon23:26:043
283249965,1cyclictest9494-21gltestperf23:40:143
283249965,1cyclictest743-21snmpd23:34:183
283249965,1cyclictest743-21snmpd21:55:243
283249965,1cyclictest743-21snmpd21:01:213
283249965,1cyclictest741-21lldpd22:24:563
283249965,1cyclictest511ktimers/320:10:123
283249965,1cyclictest11508-21gltestperf23:45:143
283249964,2cyclictest743-21snmpd20:33:173
283249964,2cyclictest743-21snmpd20:33:173
283249962,3cyclictest31131-21grep00:30:213
283249962,3cyclictest18052-21apt20:05:003
283209966,0cyclictest7272-21head20:55:112
283209966,0cyclictest522-21avahi-daemon21:43:432
283209966,0cyclictest506-21systemd-resolve00:15:132
283209964,2cyclictest28300-21cyclictest23:56:502
283209963,1cyclictest43-21ksoftirqd/223:35:152
283209963,1cyclictest43-21ksoftirqd/221:50:112
283209962,4cyclictest557-21NetworkManager19:34:582
283209962,3cyclictest13511-21fw_forwarded_lo23:50:122
283209962,3cyclictest0-21swapper/222:40:152
283209962,1cyclictest0-21swapper/220:50:162
283209961,3cyclictest43-21ksoftirqd/222:20:112
283209961,3cyclictest43-21ksoftirqd/221:30:152
283209961,3cyclictest32683-21ntpq00:35:172
283209960,4cyclictest32335-21sed20:35:202
283209960,4cyclictest1631-21ntp_states22:00:172
283209960,4cyclictest13011-21runrttasks22:29:342
283139966,0cyclictest741-21lldpd23:44:131
283139966,0cyclictest741-21lldpd22:52:301
283139966,0cyclictest7010-21cpuspeed_turbos20:55:101
283139966,0cyclictest506-21systemd-resolve19:39:341
283139966,0cyclictest19919-21needreboot00:05:151
283139965,1cyclictest741-21lldpd22:30:231
283139965,1cyclictest522-21avahi-daemon21:45:161
283139965,1cyclictest23698-21gltestperf22:55:141
283139962,3cyclictest10639-21sed22:20:211
283139960,2cyclictest28729-21head00:25:171
283249954,1cyclictest743-21snmpd23:35:083
283249954,1cyclictest743-21snmpd20:05:443
283249953,2cyclictest743-21snmpd22:11:553
283249953,2cyclictest743-21snmpd21:44:173
283249952,2cyclictest717-21ntpd23:15:173
283249952,2cyclictest3257-21cat19:25:193
283249952,2cyclictest244-20systemd-journal19:20:433
283249952,2cyclictest16434-21sed22:35:193
283249951,3cyclictest6482-21cut19:35:153
283249951,3cyclictest23150-21pluginstate22:54:593
283209952,1cyclictest0-21swapper/220:25:112
283209950,3cyclictest43-21ksoftirqd/223:05:102
283209950,2cyclictest2878-21runrttasks20:45:042
283139955,0cyclictest522-21avahi-daemon21:52:321
283139955,0cyclictest17844-21kworker/u16:1-ext4-rsv-conversion20:20:241
283139955,0cyclictest0-21swapper/119:25:111
283139953,2cyclictest717-21ntpd22:12:221
283139953,2cyclictest717-21ntpd21:10:011
283139953,2cyclictest11415-21cat21:05:131
283139952,3cyclictest8519-21kworker/1:2-mm_percpu_wq23:11:491
283139952,2cyclictest575-21rs:main1
283139952,2cyclictest28887-21expr19:10:121
283139952,2cyclictest244-20systemd-journal19:58:491
283139952,2cyclictest1630-21sed23:20:121
283139952,1cyclictest191rcu_preempt00:00:481
283139951,3cyclictest27231-21apt20:25:111
283139950,4cyclictest16034-21ntpq23:55:141
283249942,2cyclictest743-21snmpd00:03:463
283249941,2cyclictest26509-21cat23:00:203
283249941,2cyclictest244-20systemd-journal23:50:163
283249941,2cyclictest17469-21tr22:40:113
283249941,2cyclictest13640-21grep22:30:133
283249940,4cyclictest31227-21ntpq19:15:153
283249940,3cyclictest23054-21gpgv20:15:003
283139942,2cyclictest717-21ntpd19:45:021
283139942,2cyclictest30941-21cat19:15:141
283139942,2cyclictest18124-21switchtime21:20:171
283139941,2cyclictest5623-21cut23:30:141
283139940,4cyclictest31926-21ntpq21:55:181
283139940,2cyclictest0-21swapper/120:15:011
283249930,2cyclictest23391-21acpi22:55:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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