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2026-01-01 - 05:55

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 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 the highest latencies:
System rack8slot6s.osadl.org (updated Thu Jan 01, 2026 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5586991818,0cyclictest743-21snmpd23:54:402
5586991818,0cyclictest743-21snmpd23:34:152
5586991818,0cyclictest743-21snmpd22:54:382
5586991818,0cyclictest743-21snmpd22:32:132
5586991818,0cyclictest743-21snmpd22:06:572
5586991818,0cyclictest743-21snmpd22:01:152
5586991818,0cyclictest743-21snmpd20:02:582
5586991818,0cyclictest743-21snmpd19:55:112
5586991818,0cyclictest743-21snmpd19:49:102
5586991818,0cyclictest743-21snmpd19:27:372
5586991818,0cyclictest22691-21cat21:10:142
5577991818,0cyclictest65850irq/126-lan22:53:340
5577991818,0cyclictest65850irq/126-lan21:40:220
5577991818,0cyclictest65850irq/126-lan19:35:560
5577991817,1cyclictest65850irq/126-lan20:45:180
5577991817,1cyclictest65850irq/126-lan00:20:180
5586991717,0cyclictest743-21snmpd23:39:422
5586991717,0cyclictest743-21snmpd22:55:412
5586991717,0cyclictest743-21snmpd22:19:222
5586991717,0cyclictest743-21snmpd21:27:202
5586991717,0cyclictest743-21snmpd21:22:492
5586991717,0cyclictest743-21snmpd20:46:252
5586991717,0cyclictest743-21snmpd20:24:422
5586991717,0cyclictest743-21snmpd19:43:052
5586991717,0cyclictest6051-21cat23:05:202
5586991717,0cyclictest4635-21cat00:25:152
5586991717,0cyclictest18664-21cat21:00:152
5577991717,0cyclictest65850irq/126-lan23:50:220
5577991717,0cyclictest65850irq/126-lan23:05:240
5577991717,0cyclictest65850irq/126-lan23:03:500
5577991717,0cyclictest65850irq/126-lan22:45:140
5577991717,0cyclictest65850irq/126-lan22:19:130
5577991717,0cyclictest65850irq/126-lan21:15:210
5577991717,0cyclictest65850irq/126-lan20:54:160
5577991717,0cyclictest65850irq/126-lan00:13:390
5577991716,1cyclictest65850irq/126-lan19:20:180
5586991616,0cyclictest20223-21cat23:40:142
5577991616,0cyclictest65850irq/126-lan23:45:130
5577991616,0cyclictest65850irq/126-lan22:37:290
5577991616,0cyclictest65850irq/126-lan22:05:150
5577991616,0cyclictest65850irq/126-lan22:00:150
5577991616,0cyclictest65850irq/126-lan21:20:150
5577991616,0cyclictest65850irq/126-lan21:14:070
5577991616,0cyclictest65850irq/126-lan21:00:150
5577991616,0cyclictest65850irq/126-lan20:25:210
5577991616,0cyclictest65850irq/126-lan20:10:180
5577991616,0cyclictest65850irq/126-lan19:55:170
5577991616,0cyclictest65850irq/126-lan19:40:260
5577991616,0cyclictest65850irq/126-lan19:30:170
5577991616,0cyclictest65850irq/126-lan00:15:120
5577991616,0cyclictest65850irq/126-lan00:00:200
5577991515,0cyclictest65850irq/126-lan22:40:160
5577991515,0cyclictest65850irq/126-lan22:30:130
5577991515,0cyclictest65850irq/126-lan21:45:180
5577991515,0cyclictest65850irq/126-lan21:33:500
5577991515,0cyclictest65850irq/126-lan21:25:160
5577991515,0cyclictest65850irq/126-lan21:05:220
5577991515,0cyclictest65850irq/126-lan20:35:190
5577991515,0cyclictest65850irq/126-lan20:30:140
5577991515,0cyclictest65850irq/126-lan20:20:200
5577991515,0cyclictest65850irq/126-lan20:15:120
5577991515,0cyclictest65850irq/126-lan19:45:290
5586991414,0cyclictest743-21snmpd21:38:132
5577991414,0cyclictest65850irq/126-lan22:25:160
5577991414,0cyclictest65850irq/126-lan19:25:190
5577991414,0cyclictest65850irq/126-lan19:10:180
5577991413,1cyclictest65850irq/126-lan22:55:120
5577991313,0cyclictest65850irq/126-lan23:40:150
5577991313,0cyclictest65850irq/126-lan23:20:150
5577991313,0cyclictest65850irq/126-lan22:10:200
5577991313,0cyclictest65850irq/126-lan21:50:180
5577991313,0cyclictest65850irq/126-lan20:40:170
5577991313,0cyclictest65850irq/126-lan20:05:160
5577991212,0cyclictest65850irq/126-lan23:35:150
5577991212,0cyclictest65850irq/126-lan23:15:190
5577991212,0cyclictest65850irq/126-lan23:10:000
5577991212,0cyclictest65850irq/126-lan21:55:140
5577991212,0cyclictest65850irq/126-lan21:00:000
5577991212,0cyclictest65850irq/126-lan20:00:160
5577991212,0cyclictest65850irq/126-lan19:50:130
5577991212,0cyclictest65850irq/126-lan19:17:280
5577991211,1cyclictest65850irq/126-lan21:36:200
5577991111,0cyclictest65850irq/126-lan23:32:590
5577991111,0cyclictest65850irq/126-lan00:25:170
558699109,1cyclictest19646-21kworker/2:0+events00:11:092
5577991010,0cyclictest65850irq/126-lan22:20:130
5577991010,0cyclictest65850irq/126-lan00:35:130
55889998,1cyclictest743-21snmpd23:13:273
55889998,1cyclictest743-21snmpd22:13:193
55889998,1cyclictest743-21snmpd19:31:103
55889998,1cyclictest743-21snmpd00:33:383
55829998,1cyclictest743-21snmpd21:47:451
55829998,1cyclictest743-21snmpd21:18:081
55829998,1cyclictest743-21snmpd00:32:441
55829998,1cyclictest741-21lldpd23:35:361
55829998,1cyclictest741-21lldpd21:10:001
55779999,0cyclictest65850irq/126-lan00:30:120
55889988,0cyclictest743-21snmpd22:52:353
55889988,0cyclictest743-21snmpd00:12:113
55889988,0cyclictest741-21lldpd19:22:153
55889988,0cyclictest741-21lldpd00:04:433
55889987,1cyclictest743-21snmpd19:13:063
55889987,1cyclictest741-21lldpd20:40:463
55889987,1cyclictest741-21lldpd20:27:063
55889987,1cyclictest741-21lldpd20:07:433
55889987,1cyclictest26613-21gltestperf21:20:153
55889987,1cyclictest24998-21ntp_kernel_err21:15:193
55889986,2cyclictest743-21snmpd22:21:463
55889986,2cyclictest743-21snmpd21:38:223
55889986,2cyclictest743-21snmpd20:01:553
55889986,1cyclictest743-21snmpd22:45:143
55869988,0cyclictest743-21snmpd19:50:022
55869988,0cyclictest741-21lldpd22:41:402
55869987,1cyclictest743-21snmpd20:41:212
55869987,1cyclictest743-21snmpd20:39:152
55869987,1cyclictest741-21lldpd00:08:172
55869986,2cyclictest743-21snmpd21:59:002
55869986,2cyclictest743-21snmpd20:13:302
55829988,0cyclictest743-21snmpd20:58:491
55829988,0cyclictest743-21snmpd20:12:541
55829988,0cyclictest743-21snmpd19:25:311
55829988,0cyclictest743-21snmpd19:23:341
55829988,0cyclictest743-21snmpd19:13:281
55829988,0cyclictest741-21lldpd23:02:201
55829988,0cyclictest741-21lldpd21:44:531
55829988,0cyclictest741-21lldpd20:46:541
55829988,0cyclictest741-21lldpd00:10:351
55829987,1cyclictest743-21snmpd23:17:241
55829987,1cyclictest743-21snmpd22:05:451
55829987,1cyclictest743-21snmpd00:27:531
55829986,2cyclictest743-21snmpd20:09:211
55829986,2cyclictest743-21snmpd00:04:011
55829986,2cyclictest2643-21cat00:20:141
55779988,0cyclictest65850irq/126-lan23:55:120
55779988,0cyclictest65850irq/126-lan23:25:150
55889977,0cyclictest743-21snmpd23:20:393
55889977,0cyclictest743-21snmpd23:06:143
55889977,0cyclictest743-21snmpd22:34:193
55889977,0cyclictest743-21snmpd00:35:473
55889977,0cyclictest741-21lldpd23:46:013
55889977,0cyclictest741-21lldpd22:57:563
55889977,0cyclictest741-21lldpd22:25:113
55889977,0cyclictest741-21lldpd20:57:163
55889977,0cyclictest741-21lldpd20:22:223
55889977,0cyclictest741-21lldpd19:40:573
55889977,0cyclictest741-21lldpd19:15:233
55889976,1cyclictest743-21snmpd22:03:543
55889976,1cyclictest743-21snmpd20:16:323
55889975,2cyclictest743-21snmpd23:26:393
55889975,2cyclictest743-21snmpd22:16:403
55889975,2cyclictest743-21snmpd20:14:063
55889975,2cyclictest2624-21cat00:20:143
55869977,0cyclictest743-21snmpd20:16:032
55869977,0cyclictest741-21lldpd00:33:562
55869977,0cyclictest741-21lldpd00:15:592
55869976,1cyclictest19646-21kworker/2:0+events23:55:192
55869976,1cyclictest19646-21kworker/2:0+events23:47:392
55869976,1cyclictest19646-21kworker/2:0+events23:25:172
55869976,1cyclictest19646-21kworker/2:0+events23:20:392
55869976,1cyclictest19646-21kworker/2:0+events23:10:292
55869976,1cyclictest19646-21kworker/2:0+events23:01:292
55869976,1cyclictest19646-21kworker/2:0+events22:45:192
55869976,1cyclictest19646-21kworker/2:0+events22:35:152
55869976,1cyclictest19646-21kworker/2:0+events22:26:312
55869976,1cyclictest19646-21kworker/2:0+events22:20:152
55869976,1cyclictest19646-21kworker/2:0+events22:10:132
55869976,1cyclictest19646-21kworker/2:0+events21:45:012
55869976,1cyclictest19646-21kworker/2:0+events21:41:032
55869976,1cyclictest19646-21kworker/2:0+events21:15:172
55869976,1cyclictest19646-21kworker/2:0+events21:09:242
55869976,1cyclictest19646-21kworker/2:0+events20:56:352
55869976,1cyclictest19646-21kworker/2:0+events19:30:122
55869976,1cyclictest19646-21kworker/2:0+events19:10:162
55869976,1cyclictest19646-21kworker/2:0+events00:20:212
55869976,1cyclictest19646-21kworker/2:0+events00:00:052
55869975,2cyclictest717-21ntpd00:35:122
55829977,0cyclictest741-21lldpd23:09:441
55829977,0cyclictest741-21lldpd22:02:511
55829977,0cyclictest741-21lldpd20:28:441
55829977,0cyclictest741-21lldpd19:16:411
55829976,1cyclictest743-21snmpd23:28:241
55829976,1cyclictest743-21snmpd22:49:141
55829976,1cyclictest743-21snmpd20:51:001
55829976,1cyclictest32622-21cpuspeed_turbos00:15:131
55829976,1cyclictest30412-21cpuspeed_turbos21:30:131
55829975,2cyclictest8071-21cat23:10:291
55829975,2cyclictest743-21snmpd23:50:431
55829975,2cyclictest743-21snmpd23:47:251
55829975,2cyclictest743-21snmpd23:32:331
55829975,2cyclictest743-21snmpd22:39:471
55829975,2cyclictest743-21snmpd21:22:591
55829975,2cyclictest743-21snmpd20:15:511
55829975,2cyclictest743-21snmpd19:59:111
55829975,2cyclictest743-21snmpd19:30:151
55829973,3cyclictest19325-21sed21:00:211
55889966,0cyclictest743-21snmpd19:28:273
55889966,0cyclictest741-21lldpd20:52:023
55889965,1cyclictest743-21snmpd21:31:083
55889965,1cyclictest522-21avahi-daemon00:26:103
55889965,1cyclictest22262-21gltestperf19:50:123
55889964,2cyclictest743-21snmpd23:57:553
55889964,2cyclictest743-21snmpd23:00:323
55889963,3cyclictest32717-21diskstats00:15:133
55889963,2cyclictest2144-21tr21:40:123
55889962,3cyclictest25257-21sed19:55:223
55889962,3cyclictest13626-21perl22:05:123
55869965,1cyclictest19646-21kworker/2:0+events23:15:392
55869965,1cyclictest19646-21kworker/2:0+events21:50:092
55869965,1cyclictest19646-21kworker/2:0+events21:30:152
55869965,1cyclictest19646-21kworker/2:0+events20:50:152
55869965,1cyclictest19646-21kworker/2:0+events20:30:172
55869965,1cyclictest19646-21kworker/2:0+events20:25:192
55869965,1cyclictest19646-21kworker/2:0+events20:05:132
55869965,1cyclictest19646-21kworker/2:0+events19:35:152
55869965,1cyclictest19646-21kworker/2:0+events19:20:252
55869963,3cyclictest717-21ntpd19:16:272
55829966,0cyclictest741-21lldpd22:16:451
55829966,0cyclictest741-21lldpd22:11:251
55829965,1cyclictest743-21snmpd22:41:491
55829965,1cyclictest743-21snmpd20:00:261
55829962,3cyclictest8504-21gcc20:35:191
55829961,5cyclictest557-21NetworkManager23:41:471
55889955,0cyclictest743-21snmpd23:15:543
55889955,0cyclictest743-21snmpd21:58:003
55889955,0cyclictest741-21lldpd23:43:433
55889955,0cyclictest741-21lldpd19:49:003
55889955,0cyclictest741-21lldpd00:09:493
55889954,1cyclictest743-21snmpd22:44:443
55889954,1cyclictest743-21snmpd20:33:483
55889953,2cyclictest6447-21cat21:50:113
55889952,3cyclictest557-21NetworkManager23:37:293
55889952,2cyclictest244-20systemd-journal21:01:533
55889952,2cyclictest20873-21tail21:05:163
55889950,4cyclictest16583-21ntp_states23:30:193
55829955,0cyclictest743-21snmpd21:26:021
55829955,0cyclictest741-21lldpd22:51:201
55829955,0cyclictest741-21lldpd22:31:461
55829955,0cyclictest522-21avahi-daemon19:39:101
55829954,1cyclictest743-21snmpd23:56:581
55829954,1cyclictest6318-21gltestperf21:50:111
55829953,2cyclictest743-21snmpd21:09:151
55829953,2cyclictest743-21snmpd00:36:021
55829953,2cyclictest743-21snmpd00:06:161
55829953,2cyclictest557-21NetworkManager20:20:271
55829953,2cyclictest10008-21uniq20:40:141
55829952,3cyclictest557-21NetworkManager19:45:211
55829952,2cyclictest9586-21sed21:55:211
55829952,2cyclictest2548-21ps22:55:181
55829952,2cyclictest244-20systemd-journal22:24:101
55829952,2cyclictest19031-21cat19:40:331
55829950,4cyclictest22198-21ntpq22:25:141
55779950,3cyclictest16-21ksoftirqd/000:05:000
55889944,0cyclictest0-21swapper/323:50:163
55889943,1cyclictest28522-21cut21:25:103
55889941,2cyclictest22969-21ldconfig21:10:163
55889941,2cyclictest12453-21ntp_192.168.11420:45:163
55889940,3cyclictest16601-21ntpq19:35:193
55889940,2cyclictest8015-21tail20:35:163
55889940,2cyclictest4272-21sort21:45:133
55829942,2cyclictest32649-21gltestperf21:35:141
55829941,2cyclictest22591-21cut19:50:141
55829940,4cyclictest6445-21ntpq20:30:171
55829940,3cyclictest12017-21/usr/sbin/munin23:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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