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2026-04-23 - 08:19

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 Apr 23, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25428991918,1cyclictest65850irq/126-lan20:00:233
25428991817,1cyclictest65850irq/126-lan21:15:153
25428991717,0cyclictest65850irq/126-lan23:25:113
25428991717,0cyclictest65850irq/126-lan23:10:113
25428991717,0cyclictest65850irq/126-lan23:01:273
25428991717,0cyclictest65850irq/126-lan00:18:433
25428991716,1cyclictest65850irq/126-lan23:55:123
25428991716,1cyclictest65850irq/126-lan23:50:133
25428991716,1cyclictest65850irq/126-lan23:25:003
25428991716,1cyclictest65850irq/126-lan21:45:153
25428991716,1cyclictest65850irq/126-lan21:10:153
25428991716,1cyclictest65850irq/126-lan20:10:163
25428991716,1cyclictest65850irq/126-lan19:55:163
25428991716,1cyclictest65850irq/126-lan00:25:133
25428991616,0cyclictest65850irq/126-lan21:55:113
25428991616,0cyclictest65850irq/126-lan21:00:083
25428991616,0cyclictest65850irq/126-lan19:10:023
25428991616,0cyclictest65850irq/126-lan00:10:213
25428991615,1cyclictest65850irq/126-lan23:45:203
25428991615,1cyclictest65850irq/126-lan23:30:173
25428991615,1cyclictest65850irq/126-lan22:40:153
25428991615,1cyclictest65850irq/126-lan21:20:193
25428991615,1cyclictest65850irq/126-lan21:05:133
25428991615,1cyclictest65850irq/126-lan20:55:183
25428991615,1cyclictest65850irq/126-lan20:50:143
25428991615,1cyclictest65850irq/126-lan20:25:123
25428991615,1cyclictest65850irq/126-lan20:25:123
25428991615,1cyclictest65850irq/126-lan00:20:003
25428991615,1cyclictest65850irq/126-lan00:05:113
25428991515,0cyclictest65850irq/126-lan22:15:113
25428991515,0cyclictest65850irq/126-lan22:10:143
25428991515,0cyclictest65850irq/126-lan19:40:153
25428991514,1cyclictest65850irq/126-lan22:55:163
25428991514,1cyclictest65850irq/126-lan22:35:143
25428991514,1cyclictest65850irq/126-lan22:25:123
25428991514,1cyclictest65850irq/126-lan22:05:203
25428991514,1cyclictest65850irq/126-lan22:00:183
25428991514,1cyclictest65850irq/126-lan21:40:143
25428991514,1cyclictest65850irq/126-lan20:45:133
25428991514,1cyclictest65850irq/126-lan19:30:133
25428991514,1cyclictest65850irq/126-lan19:20:203
25428991414,0cyclictest65850irq/126-lan22:45:173
25428991414,0cyclictest65850irq/126-lan19:37:053
25428991413,1cyclictest65850irq/126-lan23:05:163
25428991413,1cyclictest65850irq/126-lan22:20:123
25428991413,1cyclictest65850irq/126-lan21:50:153
25428991413,1cyclictest65850irq/126-lan21:25:123
25428991413,1cyclictest65850irq/126-lan20:30:163
25428991413,1cyclictest65850irq/126-lan20:20:163
25428991413,1cyclictest65850irq/126-lan20:05:213
25428991413,1cyclictest65850irq/126-lan19:45:143
25428991313,0cyclictest65850irq/126-lan23:35:143
25428991313,0cyclictest65850irq/126-lan20:40:213
25428991313,0cyclictest65850irq/126-lan20:35:153
25428991313,0cyclictest65850irq/126-lan00:35:173
25428991312,1cyclictest65850irq/126-lan21:35:113
25428991312,1cyclictest65850irq/126-lan19:15:173
25428991212,0cyclictest65850irq/126-lan19:50:173
25428991211,1cyclictest65850irq/126-lan19:25:143
25428991110,1cyclictest65850irq/126-lan22:30:173
25428991110,1cyclictest65850irq/126-lan20:15:163
25428991010,0cyclictest65850irq/126-lan23:15:163
25428991010,0cyclictest65850irq/126-lan22:50:113
25428991010,0cyclictest65850irq/126-lan21:30:063
25428991010,0cyclictest65850irq/126-lan00:33:373
254249998,1cyclictest743-21snmpd20:56:402
254249998,1cyclictest743-21snmpd00:25:382
254249998,1cyclictest741-21lldpd22:57:352
254249998,1cyclictest741-21lldpd22:06:312
254229998,1cyclictest743-21snmpd21:13:171
254229998,1cyclictest743-21snmpd20:48:191
254229998,1cyclictest743-21snmpd19:52:521
254229998,1cyclictest743-21snmpd19:26:191
254229998,1cyclictest743-21snmpd00:02:311
254189998,1cyclictest743-21snmpd21:24:520
254189998,1cyclictest743-21snmpd20:58:550
254189998,1cyclictest743-21snmpd19:35:010
254189998,1cyclictest743-21snmpd00:09:160
254189998,1cyclictest741-21lldpd21:08:410
254189998,1cyclictest741-21lldpd20:18:300
254249988,0cyclictest743-21snmpd23:23:512
254249988,0cyclictest743-21snmpd21:49:332
254249988,0cyclictest743-21snmpd19:49:022
254249988,0cyclictest741-21lldpd20:14:062
254249988,0cyclictest741-21lldpd19:20:552
254249986,2cyclictest743-21snmpd22:50:502
254249986,2cyclictest743-21snmpd22:16:242
254249986,2cyclictest743-21snmpd00:23:142
254249986,2cyclictest743-21snmpd00:11:252
254229988,0cyclictest743-21snmpd22:52:441
254229988,0cyclictest743-21snmpd22:29:011
254229988,0cyclictest743-21snmpd21:42:351
254229988,0cyclictest743-21snmpd19:20:431
254229988,0cyclictest743-21snmpd19:11:041
254229988,0cyclictest741-21lldpd22:16:101
254229988,0cyclictest741-21lldpd20:07:211
254229987,1cyclictest743-21snmpd22:40:521
254229986,2cyclictest743-21snmpd23:42:421
254229986,2cyclictest743-21snmpd21:15:111
254229986,2cyclictest743-21snmpd20:20:381
254229986,2cyclictest717-21ntpd23:26:341
254229986,2cyclictest717-21ntpd23:18:531
254229986,2cyclictest717-21ntpd23:00:391
254229986,2cyclictest717-21ntpd22:46:591
254229986,2cyclictest717-21ntpd22:37:531
254229986,2cyclictest717-21ntpd21:51:561
254229986,2cyclictest717-21ntpd21:31:321
254229986,2cyclictest717-21ntpd21:29:541
254229986,2cyclictest717-21ntpd21:09:011
254229986,2cyclictest717-21ntpd21:00:591
254229986,2cyclictest717-21ntpd20:41:371
254229986,2cyclictest717-21ntpd20:37:131
254229986,2cyclictest717-21ntpd19:16:461
254229986,2cyclictest717-21ntpd00:35:571
254229986,2cyclictest14257-21cat20:00:151
254189988,0cyclictest741-21lldpd22:38:480
254189988,0cyclictest741-21lldpd21:55:180
254189988,0cyclictest741-21lldpd21:01:590
254189988,0cyclictest741-21lldpd20:31:380
254189987,1cyclictest743-21snmpd23:15:150
254189987,1cyclictest743-21snmpd23:12:440
254189987,1cyclictest743-21snmpd22:02:180
254189987,1cyclictest743-21snmpd20:52:130
254189987,1cyclictest741-21lldpd00:28:560
254189986,2cyclictest743-21snmpd22:46:020
254189986,2cyclictest743-21snmpd20:20:500
254189986,2cyclictest743-21snmpd19:56:050
254189986,2cyclictest743-21snmpd19:21:570
254289976,1cyclictest65850irq/126-lan23:40:163
254249977,0cyclictest743-21snmpd23:30:122
254249977,0cyclictest741-21lldpd23:59:192
254249977,0cyclictest741-21lldpd22:45:302
254249977,0cyclictest741-21lldpd22:39:422
254249977,0cyclictest741-21lldpd20:25:062
254249977,0cyclictest741-21lldpd20:25:062
254249977,0cyclictest741-21lldpd19:36:382
254249977,0cyclictest741-21lldpd00:38:522
254249977,0cyclictest522-21avahi-daemon22:02:312
254249977,0cyclictest522-21avahi-daemon00:18:132
254249976,1cyclictest743-21snmpd20:45:242
254249976,1cyclictest17346-21cpuspeed_turbos00:05:122
254249976,1cyclictest15806-21cpuspeed_turbos21:25:112
254249976,1cyclictest10747-21latency_hist23:50:002
254249975,2cyclictest743-21snmpd23:51:192
254249975,2cyclictest743-21snmpd21:55:302
254249975,2cyclictest743-21snmpd21:51:562
254249975,2cyclictest743-21snmpd21:11:082
254249975,2cyclictest743-21snmpd19:29:492
254249975,2cyclictest743-21snmpd19:11:162
254229977,0cyclictest743-21snmpd20:18:361
254229977,0cyclictest743-21snmpd19:35:081
254229977,0cyclictest741-21lldpd23:24:171
254229977,0cyclictest741-21lldpd22:24:341
254229977,0cyclictest741-21lldpd19:56:221
254229976,1cyclictest743-21snmpd22:03:091
254229976,1cyclictest743-21snmpd19:48:141
254229976,1cyclictest741-21lldpd23:54:051
254229976,1cyclictest717-21ntpd21:48:001
254229976,1cyclictest522-21avahi-daemon23:57:041
254229976,1cyclictest522-21avahi-daemon22:08:071
254229976,1cyclictest2767-21cpuspeed_turbos23:30:131
254229975,2cyclictest743-21snmpd22:14:061
254229975,2cyclictest717-21ntpd23:11:151
254229975,2cyclictest717-21ntpd23:06:271
254229975,2cyclictest717-21ntpd21:55:401
254229973,3cyclictest3356-21grep20:55:011
254189977,0cyclictest743-21snmpd22:33:040
254189977,0cyclictest743-21snmpd21:40:290
254189977,0cyclictest743-21snmpd21:34:080
254189977,0cyclictest743-21snmpd20:03:120
254189977,0cyclictest741-21lldpd22:25:450
254189977,0cyclictest741-21lldpd21:52:140
254189977,0cyclictest741-21lldpd21:25:530
254189977,0cyclictest741-21lldpd19:45:300
254189977,0cyclictest741-21lldpd19:33:360
254189977,0cyclictest741-21lldpd00:10:180
254189976,1cyclictest743-21snmpd23:59:220
254189976,1cyclictest743-21snmpd23:35:540
254189976,1cyclictest743-21snmpd20:11:060
254189976,1cyclictest743-21snmpd00:38:140
254189976,1cyclictest741-21lldpd23:31:490
254189976,1cyclictest741-21lldpd21:36:340
254189976,1cyclictest717-21ntpd23:24:300
254189975,2cyclictest743-21snmpd19:15:160
254189974,3cyclictest743-21snmpd22:51:200
254289966,0cyclictest741-21lldpd00:04:433
254249966,0cyclictest743-21snmpd23:42:392
254249966,0cyclictest743-21snmpd23:09:022
254249966,0cyclictest743-21snmpd19:16:242
254249966,0cyclictest741-21lldpd23:26:402
254249966,0cyclictest741-21lldpd23:10:452
254249966,0cyclictest741-21lldpd21:36:092
254249966,0cyclictest741-21lldpd20:36:262
254249966,0cyclictest522-21avahi-daemon22:26:452
254249965,1cyclictest573-21in:imuxsock22:31:392
254249965,1cyclictest1361-21cpuspeed_turbos19:30:122
254249965,1cyclictest12562-21nvmesmart_nvme021:15:192
254249964,2cyclictest743-21snmpd23:38:182
254249964,2cyclictest743-21snmpd23:16:482
254249964,2cyclictest743-21snmpd22:40:042
254249963,3cyclictest506-21systemd-resolve20:20:122
254249963,3cyclictest15559-21fw_forwarded_lo00:00:152
254249962,4cyclictest557-21NetworkManager20:00:252
254249962,3cyclictest29673-21cut00:35:002
254229966,0cyclictest743-21snmpd23:46:041
254229966,0cyclictest743-21snmpd21:20:141
254229966,0cyclictest741-21lldpd23:35:211
254229966,0cyclictest741-21lldpd22:56:341
254229966,0cyclictest741-21lldpd20:55:491
254229965,1cyclictest743-21snmpd19:42:201
254229965,1cyclictest743-21snmpd00:10:461
254229965,1cyclictest717-21ntpd21:35:311
254229964,2cyclictest743-21snmpd20:25:511
254229964,2cyclictest743-21snmpd20:25:511
254229964,2cyclictest743-21snmpd19:32:411
254229964,2cyclictest743-21snmpd00:16:321
254229964,2cyclictest743-21snmpd00:05:281
254229963,3cyclictest25650-21perl00:25:131
254229962,2cyclictest12792-21cat22:35:001
254189966,0cyclictest741-21lldpd23:44:310
254189966,0cyclictest741-21lldpd22:40:190
254189966,0cyclictest741-21lldpd22:19:340
254189966,0cyclictest573-21in:imuxsock20:49:420
254189965,1cyclictest743-21snmpd23:50:280
254189965,1cyclictest743-21snmpd23:28:390
254189965,1cyclictest741-21lldpd00:21:580
254189965,1cyclictest244-20systemd-journal22:10:170
254189964,2cyclictest743-21snmpd21:49:060
254189964,2cyclictest743-21snmpd20:09:470
254189964,2cyclictest743-21snmpd19:26:490
254189961,5cyclictest557-21NetworkManager20:25:430
254189961,5cyclictest557-21NetworkManager20:25:430
254249955,0cyclictest573-21in:imuxsock21:32:142
254249955,0cyclictest522-21avahi-daemon21:43:462
254249955,0cyclictest506-21systemd-resolve19:58:212
254249954,1cyclictest22951-21/usr/sbin/munin23:00:182
254249953,2cyclictest743-21snmpd22:11:212
254249953,2cyclictest743-21snmpd19:41:172
254249952,2cyclictest9159-21sshd21:07:052
254249952,2cyclictest7687-21ntp_states22:20:162
254249952,2cyclictest20143-21cut20:15:132
254249951,3cyclictest16554-21ld20:05:162
254229952,2cyclictest27841-21cut20:35:001
254229952,2cyclictest18593-21awk20:10:161
254189955,0cyclictest741-21lldpd22:23:140
254189955,0cyclictest741-21lldpd19:43:400
254189954,1cyclictest9611-21ntpq23:45:170
254189954,1cyclictest522-21avahi-daemon00:00:220
254189954,1cyclictest21591-21gltestperf00:15:120
254189954,1cyclictest1207-21ntpq22:05:170
254189953,2cyclictest21725-21ntpq22:55:170
254189952,3cyclictest506-21systemd-resolve20:41:280
254189952,3cyclictest25872-21uniq19:10:110
254189951,3cyclictest10057-21cut19:50:120
254189950,4cyclictest10467-21ntpq21:10:170
254249943,1cyclictest30345-21gltestperf20:40:142
254249942,2cyclictest743-21snmpd20:54:372
254249941,2cyclictest5765-21grep21:00:122
254249941,2cyclictest244-20systemd-journal19:52:272
254249941,2cyclictest14524-21ntpq21:20:152
254249940,3cyclictest26098-21diskstats20:30:112
254229942,2cyclictest28102-21tail00:30:141
254229942,2cyclictest23313-21cat00:20:111
254189942,2cyclictest743-21snmpd21:18:350
254189942,2cyclictest27976-21fschecks_count00:30:130
254189942,2cyclictest25737-21ld23:05:160
254189941,2cyclictest28781-21ntpq20:35:170
254189930,3cyclictest22976-21apt-get23:00:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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