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2026-06-24 - 11:47

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 the 376 highest latencies:
System rack8slot6s.osadl.org (updated Wed Jun 24, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14708991918,1cyclictest65850irq/126-lan19:20:460
14708991818,0cyclictest65850irq/126-lan21:29:140
14708991818,0cyclictest65850irq/126-lan21:22:240
14708991817,1cyclictest65850irq/126-lan22:52:040
14708991717,0cyclictest65850irq/126-lan21:35:130
14708991717,0cyclictest65850irq/126-lan21:30:210
14708991717,0cyclictest65850irq/126-lan20:45:330
14708991717,0cyclictest65850irq/126-lan20:44:550
14708991716,1cyclictest65850irq/126-lan23:50:150
14708991716,1cyclictest65850irq/126-lan19:15:120
14708991616,0cyclictest743-21snmpd23:41:560
14708991616,0cyclictest743-21snmpd23:21:510
14708991616,0cyclictest743-21snmpd22:31:280
14708991616,0cyclictest743-21snmpd22:20:220
14708991616,0cyclictest743-21snmpd22:20:220
14708991616,0cyclictest743-21snmpd00:25:020
14708991616,0cyclictest743-21snmpd00:02:580
14708991616,0cyclictest65850irq/126-lan23:25:210
14708991616,0cyclictest65850irq/126-lan21:50:340
14708991616,0cyclictest65850irq/126-lan21:10:230
14708991616,0cyclictest65850irq/126-lan20:30:220
14708991616,0cyclictest65850irq/126-lan00:20:140
14708991616,0cyclictest65850irq/126-lan00:07:200
14708991615,1cyclictest65850irq/126-lan23:15:160
14708991615,1cyclictest65850irq/126-lan23:10:150
14708991615,1cyclictest65850irq/126-lan22:15:220
14708991615,1cyclictest65850irq/126-lan21:07:420
14708991615,1cyclictest65850irq/126-lan20:50:130
14708991615,1cyclictest65850irq/126-lan20:35:140
14708991615,1cyclictest65850irq/126-lan19:30:180
14708991515,0cyclictest743-21snmpd20:20:440
14708991515,0cyclictest743-21snmpd20:19:560
14708991515,0cyclictest743-21snmpd19:58:370
14708991515,0cyclictest743-21snmpd19:36:070
14708991515,0cyclictest65850irq/126-lan20:10:160
14708991515,0cyclictest65850irq/126-lan00:35:110
14708991515,0cyclictest11537-21cat21:40:140
14708991514,1cyclictest65850irq/126-lan23:56:170
14708991514,1cyclictest65850irq/126-lan23:45:230
14708991514,1cyclictest65850irq/126-lan22:40:150
14708991514,1cyclictest65850irq/126-lan20:05:120
14708991514,1cyclictest65850irq/126-lan19:25:150
14708991514,1cyclictest65850irq/126-lan00:15:160
14708991414,0cyclictest9802-21cat22:55:140
14708991414,0cyclictest743-21snmpd23:39:090
14708991414,0cyclictest743-21snmpd19:52:110
14708991414,0cyclictest65850irq/126-lan22:10:110
14708991414,0cyclictest65850irq/126-lan22:01:320
14708991414,0cyclictest65850irq/126-lan21:15:210
14708991414,0cyclictest65850irq/126-lan21:00:130
14708991414,0cyclictest65850irq/126-lan20:55:380
14708991414,0cyclictest65850irq/126-lan19:40:110
14708991414,0cyclictest29476-21cat19:45:140
14708991413,1cyclictest65850irq/126-lan23:30:130
14708991413,1cyclictest65850irq/126-lan23:00:180
14708991413,1cyclictest65850irq/126-lan20:25:230
14708991413,1cyclictest65850irq/126-lan19:10:130
14708991313,0cyclictest65850irq/126-lan22:45:120
14708991313,0cyclictest65850irq/126-lan20:00:010
14708991212,0cyclictest65850irq/126-lan23:05:190
14708991212,0cyclictest65850irq/126-lan22:26:510
14708991212,0cyclictest65850irq/126-lan22:26:510
14708991212,0cyclictest65850irq/126-lan00:10:160
14708991211,1cyclictest65850irq/126-lan22:35:120
14708991010,0cyclictest65850irq/126-lan21:55:010
147229998,1cyclictest743-21snmpd21:36:443
147229998,1cyclictest741-21lldpd00:25:533
147179998,1cyclictest743-21snmpd19:28:132
147179998,1cyclictest741-21lldpd22:17:122
147179998,1cyclictest741-21lldpd21:21:462
147139998,1cyclictest743-21snmpd22:47:021
147139998,1cyclictest741-21lldpd20:51:491
147139998,1cyclictest26304-21ntp_kernel_pll_23:35:161
147089998,1cyclictest743-21snmpd21:48:000
147089998,1cyclictest741-21lldpd00:31:310
147229988,0cyclictest743-21snmpd00:19:143
147229988,0cyclictest741-21lldpd23:55:463
147229988,0cyclictest741-21lldpd22:47:373
147229988,0cyclictest741-21lldpd20:44:183
147229988,0cyclictest741-21lldpd20:28:203
147229988,0cyclictest741-21lldpd19:31:523
147229988,0cyclictest741-21lldpd19:29:383
147229987,1cyclictest743-21snmpd23:08:583
147229987,1cyclictest741-21lldpd21:48:143
147229987,1cyclictest741-21lldpd19:48:593
147229987,1cyclictest522-21avahi-daemon19:42:433
147229986,2cyclictest743-21snmpd23:33:123
147229986,2cyclictest743-21snmpd23:21:323
147229986,2cyclictest743-21snmpd23:10:413
147229986,2cyclictest743-21snmpd22:03:063
147229986,2cyclictest743-21snmpd21:26:233
147229986,2cyclictest743-21snmpd20:50:373
147229986,2cyclictest743-21snmpd20:16:353
147229986,2cyclictest743-21snmpd00:14:173
147229986,2cyclictest6131-21cat00:05:183
147229986,2cyclictest11835-21cat23:00:133
147179988,0cyclictest741-21lldpd23:00:092
147179988,0cyclictest741-21lldpd21:38:022
147179988,0cyclictest741-21lldpd21:31:502
147179988,0cyclictest741-21lldpd19:39:292
147179988,0cyclictest741-21lldpd00:24:352
147179987,1cyclictest741-21lldpd20:15:472
147179986,2cyclictest743-21snmpd23:32:212
147179986,2cyclictest743-21snmpd21:18:462
147139988,0cyclictest743-21snmpd23:40:061
147139988,0cyclictest743-21snmpd22:50:201
147139988,0cyclictest743-21snmpd19:12:301
147139988,0cyclictest741-21lldpd23:50:241
147139988,0cyclictest741-21lldpd23:34:081
147139988,0cyclictest741-21lldpd00:32:111
147139987,1cyclictest743-21snmpd23:12:571
147139987,1cyclictest743-21snmpd21:52:421
147139987,1cyclictest741-21lldpd20:23:031
147139986,2cyclictest743-21snmpd00:36:441
147089988,0cyclictest65850irq/126-lan22:05:130
147229977,0cyclictest741-21lldpd22:08:273
147229977,0cyclictest741-21lldpd21:07:343
147229977,0cyclictest741-21lldpd19:11:343
147229976,1cyclictest743-21snmpd22:22:403
147229976,1cyclictest743-21snmpd22:22:403
147229976,1cyclictest743-21snmpd19:38:213
147229976,1cyclictest0-21swapper/319:54:593
147229975,2cyclictest743-21snmpd23:40:303
147229975,2cyclictest743-21snmpd23:17:243
147229975,2cyclictest743-21snmpd22:33:073
147229975,2cyclictest743-21snmpd21:57:063
147229975,2cyclictest743-21snmpd20:01:293
147229974,2cyclictest244-20systemd-journal20:45:143
147179977,0cyclictest743-21snmpd22:39:092
147179977,0cyclictest743-21snmpd20:13:102
147179977,0cyclictest741-21lldpd23:14:482
147179977,0cyclictest741-21lldpd21:58:082
147179977,0cyclictest741-21lldpd21:25:042
147179977,0cyclictest741-21lldpd20:27:122
147179977,0cyclictest741-21lldpd00:16:062
147179977,0cyclictest522-21avahi-daemon23:40:552
147179977,0cyclictest522-21avahi-daemon23:15:072
147179977,0cyclictest506-21systemd-resolve20:34:582
147179977,0cyclictest506-21systemd-resolve00:25:182
147179976,1cyclictest743-21snmpd23:47:342
147179976,1cyclictest743-21snmpd22:33:312
147179976,1cyclictest522-21avahi-daemon19:40:072
147179976,1cyclictest13177-21cpuspeed_turbos21:45:122
147179975,2cyclictest743-21snmpd23:25:302
147179975,2cyclictest743-21snmpd22:40:192
147179975,2cyclictest743-21snmpd20:47:572
147179975,2cyclictest743-21snmpd20:44:022
147179975,2cyclictest743-21snmpd20:37:302
147179975,2cyclictest743-21snmpd20:25:002
147179975,2cyclictest743-21snmpd19:15:332
147139977,0cyclictest743-21snmpd20:42:201
147139977,0cyclictest741-21lldpd21:29:381
147139977,0cyclictest741-21lldpd20:49:331
147139977,0cyclictest741-21lldpd20:31:091
147139977,0cyclictest741-21lldpd00:13:021
147139977,0cyclictest522-21avahi-daemon20:38:061
147139976,1cyclictest743-21snmpd21:02:581
147139976,1cyclictest741-21lldpd19:21:311
147139976,1cyclictest522-21avahi-daemon20:13:191
147139976,1cyclictest31366-21head19:50:131
147139976,1cyclictest25061-21cpuspeed_turbos19:35:131
147139976,1cyclictest1738-21cat22:35:141
147139975,2cyclictest743-21snmpd23:27:031
147139975,2cyclictest743-21snmpd23:16:481
147139975,2cyclictest743-21snmpd23:07:231
147139975,2cyclictest743-21snmpd21:49:441
147139975,2cyclictest743-21snmpd21:24:171
147139975,2cyclictest743-21snmpd20:27:531
147139975,2cyclictest743-21snmpd19:25:521
147139974,3cyclictest743-21snmpd22:02:021
147139973,3cyclictest1906-21sed19:55:191
147229966,0cyclictest743-21snmpd23:47:403
147229965,1cyclictest743-21snmpd22:36:073
147229965,1cyclictest743-21snmpd22:25:223
147229965,1cyclictest743-21snmpd22:25:223
147229965,1cyclictest743-21snmpd22:15:153
147229965,1cyclictest743-21snmpd22:11:513
147229965,1cyclictest741-21lldpd21:10:033
147229965,1cyclictest3641-21needreboot21:20:163
147229964,2cyclictest743-21snmpd23:50:103
147229964,2cyclictest743-21snmpd20:55:003
147229964,2cyclictest743-21snmpd20:30:333
147229964,2cyclictest743-21snmpd19:59:293
147229963,3cyclictest11915-21df00:20:133
147229962,3cyclictest717-21ntpd21:40:173
147229962,3cyclictest16402-21sed21:50:343
147229962,3cyclictest10733-21users22:55:233
147179966,0cyclictest743-21snmpd19:13:002
147179966,0cyclictest743-21snmpd00:00:222
147179966,0cyclictest741-21lldpd00:38:092
147179966,0cyclictest522-21avahi-daemon22:02:562
147179966,0cyclictest522-21avahi-daemon20:52:262
147179966,0cyclictest522-21avahi-daemon00:32:362
147179966,0cyclictest14697-21cyclictest00:05:252
147179965,1cyclictest743-21snmpd23:50:402
147179965,1cyclictest743-21snmpd22:58:262
147179965,1cyclictest743-21snmpd22:20:342
147179965,1cyclictest743-21snmpd22:20:342
147179965,1cyclictest743-21snmpd21:02:132
147179965,1cyclictest21252-21cpuspeed_turbos22:05:122
147179965,1cyclictest1703-21cpuspeed_turbos23:55:132
147179964,2cyclictest743-21snmpd20:06:442
147179964,2cyclictest743-21snmpd00:12:592
147179961,5cyclictest557-21NetworkManager23:22:532
147179961,5cyclictest557-21NetworkManager21:08:092
147139966,0cyclictest743-21snmpd21:40:411
147139966,0cyclictest743-21snmpd21:05:311
147139966,0cyclictest743-21snmpd00:23:141
147139966,0cyclictest743-21snmpd00:17:141
147139966,0cyclictest743-21snmpd00:00:311
147139966,0cyclictest741-21lldpd21:18:301
147139966,0cyclictest522-21avahi-daemon22:30:421
147139966,0cyclictest506-21systemd-resolve19:41:461
147139965,1cyclictest743-21snmpd22:25:131
147139965,1cyclictest743-21snmpd22:25:131
147139965,1cyclictest3415-21cpuspeed_turbos22:40:111
147139964,2cyclictest743-21snmpd21:56:181
147139964,2cyclictest743-21snmpd19:30:191
147139962,3cyclictest12440-21grep23:00:191
147229955,0cyclictest741-21lldpd20:37:233
147229955,0cyclictest741-21lldpd19:19:003
147229955,0cyclictest14697-21cyclictest23:35:203
147229954,1cyclictest743-21snmpd00:01:433
147229954,1cyclictest522-21avahi-daemon23:29:233
147229954,1cyclictest4007-21cut22:40:153
147229953,2cyclictest743-21snmpd21:17:583
147229953,2cyclictest11425-21cut20:20:253
147229952,3cyclictest8190-21ntpq22:50:173
147229952,2cyclictest575-21rs:main3
147229952,2cyclictest28519-21timerwakeupswit21:00:203
147229950,4cyclictest7787-21ntpq21:30:173
147179954,1cyclictest2875-21fschecks_count20:00:142
147179954,1cyclictest244-20systemd-journal21:41:532
147179954,1cyclictest19652-21ntpq19:20:152
147179953,2cyclictest743-21snmpd19:49:372
147179953,2cyclictest557-21NetworkManager19:55:112
147179953,2cyclictest25611-21grep20:55:152
147179952,2cyclictest7549-21grep22:50:132
147179952,2cyclictest244-20systemd-journal19:30:392
147179952,2cyclictest14767-21sed23:05:212
147179951,3cyclictest6706-21users22:45:212
147179951,3cyclictest32163-21ntpq21:10:192
147139955,0cyclictest741-21lldpd23:56:071
147139955,0cyclictest741-21lldpd22:55:251
147139955,0cyclictest741-21lldpd21:34:571
147139955,0cyclictest741-21lldpd20:56:041
147139955,0cyclictest741-21lldpd00:25:171
147139955,0cyclictest522-21avahi-daemon22:16:071
147139954,1cyclictest743-21snmpd20:03:321
147139954,1cyclictest741-21lldpd21:35:061
147139952,3cyclictest743-21snmpd19:15:181
147139952,3cyclictest557-21NetworkManager23:45:171
147139952,2cyclictest4441-21turbostat.cron20:09:551
147139952,2cyclictest30135-21cat19:45:201
147139952,2cyclictest27243-21dpkg22:20:121
147139952,2cyclictest27243-21dpkg22:20:121
147139952,2cyclictest244-20systemd-journal23:22:131
147139952,2cyclictest23795-21cat22:10:141
147139951,4cyclictest557-21NetworkManager22:09:261
147229942,2cyclictest19378-21cat19:20:133
147229941,3cyclictest717-21ntpd20:05:113
147229941,2cyclictest18337-21cat00:35:143
147229940,3cyclictest15957-21diskstats00:30:133
147179941,2cyclictest29733-21cpuspeed_turbos22:25:152
147179941,2cyclictest29733-21cpuspeed_turbos22:25:142
147179941,2cyclictest27410-21ls23:40:002
147179941,2cyclictest15281-21df_inode21:50:122
147179940,4cyclictest31783-21ntpq19:50:162
147179940,3cyclictest23356-21diskstats22:10:112
147139941,2cyclictest8847-21expr20:15:091
147139941,2cyclictest6873-21cat00:05:251
147139940,4cyclictest32106-21ntpq21:10:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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