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2026-07-18 - 07:59

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 Sat Jul 18, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26486991918,1cyclictest65850irq/126-lan20:55:140
26486991918,1cyclictest65850irq/126-lan00:26:010
26494991817,1cyclictest24271-21cat20:20:142
26486991818,0cyclictest65850irq/126-lan23:30:190
26486991818,0cyclictest65850irq/126-lan21:48:460
26486991817,1cyclictest65850irq/126-lan21:51:240
26486991817,1cyclictest65850irq/126-lan20:35:000
26486991817,1cyclictest65850irq/126-lan00:35:120
26486991717,0cyclictest65850irq/126-lan23:00:140
26486991717,0cyclictest65850irq/126-lan22:00:150
26486991717,0cyclictest65850irq/126-lan21:20:200
26486991717,0cyclictest65850irq/126-lan21:05:150
26486991716,1cyclictest65850irq/126-lan22:53:430
26486991716,1cyclictest65850irq/126-lan22:45:150
26486991716,1cyclictest65850irq/126-lan22:40:110
26486991716,1cyclictest65850irq/126-lan22:37:140
26486991716,1cyclictest65850irq/126-lan22:34:390
26486991716,1cyclictest65850irq/126-lan20:35:210
26486991716,1cyclictest65850irq/126-lan20:35:210
26486991716,1cyclictest65850irq/126-lan19:50:170
26486991616,0cyclictest65850irq/126-lan21:30:280
26486991616,0cyclictest65850irq/126-lan19:47:340
26486991616,0cyclictest65850irq/126-lan19:42:350
26486991616,0cyclictest65850irq/126-lan19:10:130
26486991615,1cyclictest65850irq/126-lan23:59:590
26486991615,1cyclictest65850irq/126-lan20:15:200
26486991615,1cyclictest65850irq/126-lan19:35:140
26486991615,1cyclictest65850irq/126-lan19:30:140
26486991615,1cyclictest65850irq/126-lan19:25:130
26486991615,1cyclictest65850irq/126-lan00:30:200
26486991615,1cyclictest65850irq/126-lan00:10:120
26486991615,1cyclictest65850irq/126-lan00:08:090
26486991615,1cyclictest65850irq/126-lan00:00:140
26486991515,0cyclictest65850irq/126-lan23:45:440
26486991515,0cyclictest65850irq/126-lan21:15:000
26486991515,0cyclictest65850irq/126-lan20:10:100
26486991514,1cyclictest65850irq/126-lan23:25:140
26486991514,1cyclictest65850irq/126-lan23:10:160
26486991514,1cyclictest65850irq/126-lan23:05:100
26486991514,1cyclictest65850irq/126-lan22:15:210
26486991514,1cyclictest65850irq/126-lan22:10:210
26486991514,1cyclictest65850irq/126-lan20:05:110
26486991514,1cyclictest65850irq/126-lan00:19:590
26486991414,0cyclictest65850irq/126-lan22:55:140
26486991414,0cyclictest65850irq/126-lan21:25:220
26486991414,0cyclictest65850irq/126-lan20:22:300
26486991413,1cyclictest65850irq/126-lan23:40:000
26486991413,1cyclictest65850irq/126-lan22:25:140
26486991413,1cyclictest65850irq/126-lan21:55:180
26486991413,1cyclictest65850irq/126-lan21:35:120
26486991413,1cyclictest65850irq/126-lan20:40:170
26486991313,0cyclictest65850irq/126-lan23:20:150
26486991313,0cyclictest65850irq/126-lan22:05:110
26486991313,0cyclictest65850irq/126-lan21:10:180
26486991312,1cyclictest65850irq/126-lan23:35:210
26486991312,1cyclictest65850irq/126-lan23:15:140
26486991312,1cyclictest65850irq/126-lan20:25:170
26486991312,1cyclictest65850irq/126-lan20:00:170
2650099124,6cyclictest244-20systemd-journal22:05:153
26486991212,0cyclictest65850irq/126-lan21:00:140
26486991211,1cyclictest65850irq/126-lan22:20:190
26486991211,1cyclictest65850irq/126-lan20:46:510
2650099116,4cyclictest522-21avahi-daemon21:21:373
2650099112,6cyclictest9588-21sed22:20:203
2650099110,6cyclictest27500-21sed23:05:143
26486991111,0cyclictest65850irq/126-lan21:40:110
26486991110,1cyclictest65850irq/126-lan20:50:160
26486991110,1cyclictest65850irq/126-lan19:55:160
26486991110,1cyclictest65850irq/126-lan00:20:180
2650099106,4cyclictest743-21snmpd19:42:053
2650099106,4cyclictest18206-21cat20:05:133
2650099105,5cyclictest743-21snmpd22:58:203
2650099100,6cyclictest920-21taskset20:40:383
2650099100,6cyclictest31813-21ntpq23:15:163
2650099100,6cyclictest30766-21chrt19:18:363
2650099100,6cyclictest23225-21chrt20:16:083
26486991010,0cyclictest65850irq/126-lan19:20:200
26486991010,0cyclictest65850irq/126-lan19:15:180
265009996,3cyclictest743-21snmpd21:38:043
265009996,3cyclictest743-21snmpd21:01:213
265009996,3cyclictest741-21lldpd20:59:353
265009996,3cyclictest741-21lldpd00:01:133
265009993,3cyclictest0-21swapper/323:14:323
265009991,4cyclictest13095-21apt-key19:55:003
265009990,7cyclictest3597-21ntpq19:30:163
265009990,7cyclictest28903-21ntpq21:50:173
265009990,7cyclictest26612-21seq23:04:323
265009990,7cyclictest21547-21taskset00:07:053
265009990,7cyclictest21171-21ntpq22:50:153
265009990,6cyclictest8162-21taskset23:37:193
265009990,6cyclictest7970-21chrt22:19:003
265009990,6cyclictest525-21acpi23:20:113
265009990,6cyclictest32742-21taskset19:22:503
265009990,6cyclictest30651-21cat21:55:163
265009990,6cyclictest29400-21chrt20:32:213
265009990,6cyclictest28415-21grep00:25:113
265009990,6cyclictest27759-21chrt00:23:453
265009990,6cyclictest18642-21processes21:25:193
265009990,5cyclictest5824-21wc23:30:213
265009990,5cyclictest31558-21taskset20:39:093
265009990,5cyclictest31558-21taskset20:39:083
265009990,5cyclictest30220-21grep00:30:113
265009990,5cyclictest26972-21ntpq21:45:163
265009990,5cyclictest24961-21ntpq21:40:163
265009990,5cyclictest20000-21apt-config21:30:003
265009990,5cyclictest16066-21ntpq20:00:153
265009990,5cyclictest15890-21ntpq23:55:153
265009990,5cyclictest1584-21ntpq19:25:153
264949998,1cyclictest743-21snmpd22:12:422
264949998,1cyclictest743-21snmpd19:37:502
264949998,1cyclictest743-21snmpd00:05:452
264949998,1cyclictest741-21lldpd19:45:062
264949998,1cyclictest26481-21cyclictest20:05:152
264869998,1cyclictest65850irq/126-lan19:10:000
265009986,2cyclictest11534-21cat23:45:133
265009984,4cyclictest743-21snmpd19:39:423
265009980,7cyclictest1997-21irqstats20:45:143
265009980,7cyclictest14538-21df22:35:103
265009980,6cyclictest9785-21taskset21:05:143
265009980,6cyclictest23719-21taskset00:13:573
265009980,6cyclictest0-21swapper/321:10:193
265009980,5cyclictest8831-21taskset19:45:043
265009980,5cyclictest5724-21taskset22:11:093
265009980,5cyclictest4082-21taskset23:26:413
265009980,5cyclictest28179-21chrt19:11:473
265009980,5cyclictest25414-21chrt20:22:563
265009980,5cyclictest21009-21sed20:10:193
265009980,5cyclictest17223-21ntpq22:40:173
265009980,5cyclictest13820-21taskset23:50:163
265009980,5cyclictest10845-21taskset19:50:053
265009980,5cyclictest105782sleep323:41:493
265009980,4cyclictest254742sleep300:15:493
265009980,4cyclictest14366-21ntpq21:15:163
265009980,4cyclictest13222-21modprobe22:30:163
265009980,4cyclictest0-21swapper/322:25:123
264949988,0cyclictest743-21snmpd23:12:282
264949988,0cyclictest743-21snmpd22:02:292
264949988,0cyclictest743-21snmpd21:41:532
264949988,0cyclictest743-21snmpd21:37:312
264949988,0cyclictest743-21snmpd21:14:462
264949988,0cyclictest743-21snmpd20:46:292
264949988,0cyclictest743-21snmpd20:19:452
264949988,0cyclictest741-21lldpd22:49:452
264949987,1cyclictest743-21snmpd23:30:302
264949987,1cyclictest743-21snmpd23:27:172
264949987,1cyclictest743-21snmpd21:01:512
264949987,1cyclictest743-21snmpd20:29:092
264949987,1cyclictest743-21snmpd19:25:262
264949986,2cyclictest743-21snmpd23:46:152
264949986,2cyclictest743-21snmpd20:59:422
264949986,2cyclictest743-21snmpd19:10:252
264949986,2cyclictest743-21snmpd00:21:312
264949986,2cyclictest743-21snmpd00:02:042
264909988,0cyclictest743-21snmpd22:10:541
264909988,0cyclictest743-21snmpd21:11:581
264909988,0cyclictest743-21snmpd00:20:461
264909988,0cyclictest741-21lldpd00:00:071
264909987,1cyclictest743-21snmpd23:10:431
264909987,1cyclictest743-21snmpd22:15:171
264909987,1cyclictest743-21snmpd22:00:441
264909987,1cyclictest743-21snmpd20:22:061
264909987,1cyclictest743-21snmpd20:00:361
264909987,1cyclictest522-21avahi-daemon23:15:191
264909986,2cyclictest743-21snmpd22:24:141
264909986,2cyclictest743-21snmpd19:19:281
265009970,7cyclictest26347-21grep20:25:163
265009970,6cyclictest32505-21tune2fs22:00:133
265009970,5cyclictest32621-21awk00:35:153
265009970,5cyclictest20002-21chrt22:47:583
265009970,4cyclictest0-21swapper/320:50:163
264949977,0cyclictest743-21snmpd23:02:172
264949977,0cyclictest743-21snmpd22:41:312
264949977,0cyclictest743-21snmpd20:30:232
264949977,0cyclictest741-21lldpd23:05:212
264949977,0cyclictest741-21lldpd21:54:222
264949977,0cyclictest741-21lldpd19:52:302
264949976,1cyclictest743-21snmpd22:35:122
264949976,1cyclictest743-21snmpd00:38:022
264949976,1cyclictest743-21snmpd00:12:452
264949975,2cyclictest743-21snmpd20:37:152
264949975,2cyclictest743-21snmpd20:37:142
264949975,2cyclictest743-21snmpd20:11:102
264949975,2cyclictest743-21snmpd20:01:242
264949975,2cyclictest743-21snmpd19:42:112
264909977,0cyclictest743-21snmpd22:55:131
264909977,0cyclictest743-21snmpd22:09:291
264909977,0cyclictest743-21snmpd20:57:361
264909977,0cyclictest743-21snmpd19:51:511
264909977,0cyclictest741-21lldpd23:46:131
264909977,0cyclictest741-21lldpd21:42:411
264909977,0cyclictest741-21lldpd21:29:251
264909977,0cyclictest741-21lldpd21:19:021
264909977,0cyclictest741-21lldpd20:17:471
264909977,0cyclictest10041-21cat21:05:151
264909976,1cyclictest743-21snmpd23:26:081
264909976,1cyclictest743-21snmpd21:51:281
264909976,1cyclictest743-21snmpd19:22:431
264909976,1cyclictest743-21snmpd00:35:231
264909976,1cyclictest506-21systemd-resolve23:57:151
264909975,2cyclictest743-21snmpd23:41:111
264909975,2cyclictest743-21snmpd22:52:571
264909975,2cyclictest743-21snmpd20:27:081
264909975,2cyclictest743-21snmpd00:28:521
264909975,2cyclictest28300-21cat20:30:121
264869977,0cyclictest65850irq/126-lan23:50:160
264949966,0cyclictest743-21snmpd21:33:222
264949966,0cyclictest743-21snmpd20:43:112
264949966,0cyclictest741-21lldpd23:37:042
264949966,0cyclictest741-21lldpd22:22:302
264949966,0cyclictest741-21lldpd19:32:442
264949966,0cyclictest522-21avahi-daemon00:27:192
264949965,1cyclictest743-21snmpd22:58:262
264949965,1cyclictest522-21avahi-daemon22:50:182
264949965,1cyclictest30506-21gltestperf21:55:152
264949964,2cyclictest743-21snmpd21:46:462
264949964,2cyclictest743-21snmpd21:16:002
264949964,2cyclictest743-21snmpd19:23:412
264949963,2cyclictest14065-21ntpq19:55:182
264909966,0cyclictest743-21snmpd22:26:541
264909966,0cyclictest743-21snmpd19:57:011
264909966,0cyclictest741-21lldpd22:43:291
264909966,0cyclictest741-21lldpd21:34:121
264909966,0cyclictest741-21lldpd20:50:311
264909966,0cyclictest741-21lldpd19:31:321
264909966,0cyclictest741-21lldpd19:13:461
264909966,0cyclictest573-21in:imuxsock22:35:281
264909966,0cyclictest522-21avahi-daemon00:34:271
264909965,1cyclictest743-21snmpd23:05:101
264909965,1cyclictest506-21systemd-resolve19:44:561
264909965,1cyclictest18725-21gltestperf22:45:141
264909964,2cyclictest743-21snmpd23:24:011
264909963,2cyclictest244-20systemd-journal20:45:161
264909962,3cyclictest308-21ntp_states20:40:171
264909962,3cyclictest26123-21sed23:00:211
264949955,0cyclictest741-21lldpd23:40:002
264949955,0cyclictest741-21lldpd22:05:402
264949955,0cyclictest522-21avahi-daemon00:15:302
264949954,1cyclictest29755-21needreboot19:15:172
264949952,3cyclictest557-21NetworkManager21:23:312
264949952,3cyclictest12661-21fw_conntrack22:30:122
264949952,2cyclictest18818-21sed21:25:222
264949951,3cyclictest7115-21ntpq22:15:162
264949951,3cyclictest31507-21memory23:15:142
264909955,0cyclictest743-21snmpd23:51:181
264909955,0cyclictest743-21snmpd23:37:141
264909955,0cyclictest522-21avahi-daemon20:11:111
264909954,1cyclictest5600-21ntpq19:35:151
264909954,1cyclictest12991-21needreboot22:30:151
264909953,2cyclictest743-21snmpd00:19:391
264909953,2cyclictest22437-21head21:35:121
264909952,2cyclictest8042-21cat21:00:141
264909952,2cyclictest31620-21cat20:39:561
264909952,2cyclictest31620-21cat20:39:551
264909952,2cyclictest244-20systemd-journal23:31:271
264909952,2cyclictest20720-21cut00:05:161
264909952,2cyclictest10370-21seq19:47:031
264909951,3cyclictest17499-21apt-config20:05:001
264909951,3cyclictest1629-21ntp_states19:25:161
264909951,3cyclictest15827-21df21:20:111
264949943,1cyclictest27073-21kworker/2:2+events00:30:122
264949942,2cyclictest10576-21cut22:25:132
264949941,3cyclictest557-21NetworkManager23:53:352
264949941,3cyclictest557-21NetworkManager23:20:062
264949941,2cyclictest4103-21cat20:50:162
264949941,2cyclictest10878-21unixbench_multi21:05:222
264949940,3cyclictest15992-21ntpq23:55:162
264909941,2cyclictest26173-21awk21:45:111
264909940,4cyclictest30210-21apt-get21:55:131
264909940,3cyclictest22224-21diskstats00:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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