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2026-04-12 - 10:28

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 highest latencies:
System rack8slot6s.osadl.org (updated Sun Apr 12, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17524991918,1cyclictest65850irq/126-lan23:30:203
17524991918,1cyclictest65850irq/126-lan23:15:143
17524991918,1cyclictest65850irq/126-lan20:59:233
17524991818,0cyclictest65850irq/126-lan22:40:143
17524991818,0cyclictest65850irq/126-lan22:40:133
17524991818,0cyclictest65850irq/126-lan19:35:193
17524991817,1cyclictest65850irq/126-lan22:20:003
17524991717,0cyclictest65850irq/126-lan23:55:153
17524991717,0cyclictest65850irq/126-lan23:25:213
17524991717,0cyclictest65850irq/126-lan22:50:143
17524991717,0cyclictest65850irq/126-lan22:32:533
17524991717,0cyclictest65850irq/126-lan21:16:053
17524991716,1cyclictest65850irq/126-lan22:10:183
17524991716,1cyclictest65850irq/126-lan21:55:133
17524991716,1cyclictest65850irq/126-lan21:20:143
17524991716,1cyclictest65850irq/126-lan19:50:163
17524991716,1cyclictest65850irq/126-lan00:30:153
17524991616,0cyclictest65850irq/126-lan23:45:193
17524991616,0cyclictest65850irq/126-lan22:24:413
17524991616,0cyclictest65850irq/126-lan21:50:193
17524991616,0cyclictest65850irq/126-lan21:05:223
17524991616,0cyclictest65850irq/126-lan20:15:163
17524991616,0cyclictest65850irq/126-lan19:34:493
17524991616,0cyclictest65850irq/126-lan19:17:503
17524991616,0cyclictest65850irq/126-lan00:05:203
17524991615,1cyclictest65850irq/126-lan22:45:213
17524991615,1cyclictest65850irq/126-lan21:45:533
17524991615,1cyclictest65850irq/126-lan21:40:103
17524991615,1cyclictest65850irq/126-lan21:30:123
17524991615,1cyclictest65850irq/126-lan20:10:213
17524991615,1cyclictest65850irq/126-lan19:20:143
17524991615,1cyclictest65850irq/126-lan00:00:213
17524991515,0cyclictest65850irq/126-lan23:50:123
17524991515,0cyclictest65850irq/126-lan22:55:113
17524991515,0cyclictest65850irq/126-lan20:20:173
17524991514,1cyclictest65850irq/126-lan23:20:203
17524991514,1cyclictest65850irq/126-lan21:10:153
17524991514,1cyclictest65850irq/126-lan20:35:143
17524991514,1cyclictest65850irq/126-lan20:29:263
17524991514,1cyclictest65850irq/126-lan19:26:413
17524991514,1cyclictest65850irq/126-lan19:10:203
17524991414,0cyclictest65850irq/126-lan19:43:503
17524991413,1cyclictest65850irq/126-lan20:30:223
17524991413,1cyclictest65850irq/126-lan00:10:123
17524991313,0cyclictest65850irq/126-lan22:35:203
17524991313,0cyclictest65850irq/126-lan22:00:203
17524991313,0cyclictest65850irq/126-lan21:00:153
17524991312,1cyclictest65850irq/126-lan23:40:173
17524991312,1cyclictest65850irq/126-lan23:10:113
17524991312,1cyclictest65850irq/126-lan23:05:133
17524991312,1cyclictest65850irq/126-lan20:45:153
17524991212,0cyclictest65850irq/126-lan22:25:113
17524991212,0cyclictest65850irq/126-lan22:05:153
17524991211,1cyclictest65850irq/126-lan20:00:113
17524991211,1cyclictest65850irq/126-lan00:20:113
17524991211,1cyclictest65850irq/126-lan00:15:153
17524991111,0cyclictest65850irq/126-lan20:05:123
17524991110,1cyclictest65850irq/126-lan23:37:343
17524991110,1cyclictest65850irq/126-lan21:35:123
17524991110,1cyclictest65850irq/126-lan20:50:213
1752499109,1cyclictest65850irq/126-lan19:47:113
175249999,0cyclictest65850irq/126-lan00:25:153
175249998,1cyclictest65850irq/126-lan19:55:213
175169998,1cyclictest743-21snmpd22:15:311
175169998,1cyclictest743-21snmpd21:06:241
175169998,1cyclictest741-21lldpd23:31:241
175129998,1cyclictest743-21snmpd22:10:320
175129998,1cyclictest743-21snmpd19:29:000
175129998,1cyclictest741-21lldpd22:32:280
175129996,2cyclictest8660-21grep21:25:150
175249988,0cyclictest65850irq/126-lan21:27:143
175249987,1cyclictest65850irq/126-lan20:40:133
175209988,0cyclictest743-21snmpd22:35:172
175209988,0cyclictest743-21snmpd21:16:212
175209988,0cyclictest743-21snmpd20:05:512
175209988,0cyclictest743-21snmpd19:16:412
175209988,0cyclictest741-21lldpd00:08:062
175209988,0cyclictest506-21systemd-resolve22:50:182
175209987,1cyclictest743-21snmpd22:41:032
175209987,1cyclictest743-21snmpd22:41:032
175209987,1cyclictest743-21snmpd22:24:532
175209987,1cyclictest743-21snmpd21:30:492
175209987,1cyclictest743-21snmpd21:12:142
175209987,1cyclictest28433-21fschecks_time20:55:132
175209986,2cyclictest743-21snmpd21:52:222
175209986,2cyclictest743-21snmpd20:48:382
175209986,2cyclictest743-21snmpd00:32:062
175169988,0cyclictest743-21snmpd21:28:111
175169988,0cyclictest743-21snmpd21:22:301
175169988,0cyclictest743-21snmpd19:46:301
175169988,0cyclictest741-21lldpd22:50:031
175169988,0cyclictest741-21lldpd22:41:121
175169988,0cyclictest741-21lldpd22:41:121
175169988,0cyclictest741-21lldpd22:12:201
175169988,0cyclictest741-21lldpd20:02:201
175169988,0cyclictest741-21lldpd19:52:531
175169987,1cyclictest743-21snmpd23:38:321
175169987,1cyclictest743-21snmpd23:29:581
175169987,1cyclictest743-21snmpd23:02:201
175169986,2cyclictest743-21snmpd23:13:461
175169986,2cyclictest743-21snmpd19:56:221
175169986,2cyclictest743-21snmpd19:27:121
175129988,0cyclictest743-21snmpd23:40:260
175129988,0cyclictest743-21snmpd21:15:560
175129988,0cyclictest743-21snmpd21:10:000
175129988,0cyclictest743-21snmpd20:54:200
175129988,0cyclictest741-21lldpd22:22:320
175129988,0cyclictest741-21lldpd21:22:050
175129988,0cyclictest741-21lldpd19:53:550
175129988,0cyclictest741-21lldpd19:34:040
175129988,0cyclictest741-21lldpd00:20:160
175129987,1cyclictest743-21snmpd00:15:120
175129987,1cyclictest743-21snmpd00:07:150
175129986,2cyclictest743-21snmpd22:41:150
175129986,2cyclictest743-21snmpd22:41:150
175129986,2cyclictest4957-21cat23:55:160
175249977,0cyclictest741-21lldpd23:01:033
175249976,1cyclictest65850irq/126-lan00:35:133
175209977,0cyclictest743-21snmpd23:50:142
175209977,0cyclictest743-21snmpd22:25:202
175209977,0cyclictest743-21snmpd19:39:472
175209977,0cyclictest741-21lldpd21:00:172
175209976,1cyclictest743-21snmpd23:57:382
175209976,1cyclictest522-21avahi-daemon20:32:522
175209975,2cyclictest743-21snmpd23:25:462
175209975,2cyclictest743-21snmpd23:12:072
175209975,2cyclictest743-21snmpd21:25:082
175209975,2cyclictest743-21snmpd19:30:392
175209975,2cyclictest743-21snmpd00:18:292
175209975,2cyclictest743-21snmpd00:00:042
175209974,2cyclictest24071-21grep19:25:142
175209973,4cyclictest17273-21diskstats00:25:132
175169977,0cyclictest743-21snmpd22:05:411
175169977,0cyclictest743-21snmpd20:30:171
175169977,0cyclictest741-21lldpd23:46:521
175169977,0cyclictest741-21lldpd22:00:031
175169977,0cyclictest741-21lldpd21:30:251
175169977,0cyclictest741-21lldpd20:38:591
175169977,0cyclictest741-21lldpd20:22:381
175169977,0cyclictest741-21lldpd00:13:361
175169977,0cyclictest522-21avahi-daemon22:46:371
175169976,1cyclictest743-21snmpd22:30:131
175169976,1cyclictest743-21snmpd21:18:571
175169976,1cyclictest743-21snmpd20:47:261
175169976,1cyclictest522-21avahi-daemon21:40:211
175169976,1cyclictest30649-21cat21:00:151
175169976,1cyclictest18763-21gltestperf21:50:141
175169975,2cyclictest743-21snmpd23:55:321
175169975,2cyclictest743-21snmpd23:50:051
175169975,2cyclictest743-21snmpd23:09:251
175169975,2cyclictest743-21snmpd22:27:231
175169975,2cyclictest743-21snmpd20:54:171
175169975,2cyclictest743-21snmpd19:40:121
175169973,4cyclictest557-21NetworkManager22:20:131
175129977,0cyclictest743-21snmpd00:33:190
175129977,0cyclictest741-21lldpd22:36:010
175129977,0cyclictest741-21lldpd22:06:400
175129977,0cyclictest741-21lldpd19:42:510
175129976,1cyclictest743-21snmpd23:38:050
175129976,1cyclictest743-21snmpd23:01:350
175129976,1cyclictest743-21snmpd21:10:180
175129976,1cyclictest743-21snmpd20:00:250
175129976,1cyclictest743-21snmpd19:56:480
175129976,1cyclictest741-21lldpd23:45:410
175129976,1cyclictest741-21lldpd20:19:580
175129976,1cyclictest522-21avahi-daemon22:50:180
175129976,1cyclictest506-21systemd-resolve00:10:250
175129975,2cyclictest743-21snmpd23:15:090
175129975,2cyclictest743-21snmpd22:49:020
175129975,2cyclictest743-21snmpd22:17:590
175129975,2cyclictest743-21snmpd21:45:090
175129975,2cyclictest743-21snmpd20:44:070
175129975,2cyclictest743-21snmpd19:16:330
175129974,3cyclictest6594-21apt-get00:00:130
175209966,0cyclictest741-21lldpd23:34:242
175209966,0cyclictest741-21lldpd23:18:542
175209966,0cyclictest522-21avahi-daemon20:04:312
175209965,1cyclictest743-21snmpd22:33:102
175209965,1cyclictest743-21snmpd19:51:422
175209965,1cyclictest16479-21cpuspeed_turbos21:45:132
175209965,1cyclictest10690-21cpuspeed_turbos00:10:112
175209964,2cyclictest17185-21cat23:05:152
175209962,4cyclictest557-21NetworkManager21:24:122
175209962,3cyclictest21906-21df19:20:102
175209962,3cyclictest1265-21users19:45:222
175169966,0cyclictest743-21snmpd19:21:591
175169966,0cyclictest741-21lldpd00:17:221
175169966,0cyclictest522-21avahi-daemon20:18:051
175169965,1cyclictest743-21snmpd23:24:491
175169965,1cyclictest743-21snmpd21:10:021
175169965,1cyclictest741-21lldpd21:45:231
175169965,1cyclictest17390-21fschecks_time00:25:141
175169962,3cyclictest16619-21memory20:25:151
175129966,0cyclictest743-21snmpd23:30:160
175129966,0cyclictest743-21snmpd23:28:190
175129966,0cyclictest741-21lldpd21:51:020
175129966,0cyclictest741-21lldpd19:13:570
175129965,1cyclictest743-21snmpd23:23:310
175129965,1cyclictest743-21snmpd21:59:190
175129965,1cyclictest743-21snmpd21:44:370
175129965,1cyclictest522-21avahi-daemon23:12:400
175129964,2cyclictest743-21snmpd20:07:100
175129964,2cyclictest743-21snmpd19:37:050
175129962,4cyclictest557-21NetworkManager22:57:360
175129962,3cyclictest14046-21apt-get20:20:100
175209955,0cyclictest743-21snmpd21:37:492
175209955,0cyclictest741-21lldpd20:15:402
175209955,0cyclictest522-21avahi-daemon22:02:342
175209954,1cyclictest743-21snmpd21:57:222
175209954,1cyclictest743-21snmpd20:37:102
175209954,1cyclictest17774-21cpuspeed_turbos19:10:122
175209953,2cyclictest743-21snmpd23:39:232
175209953,2cyclictest743-21snmpd20:50:292
175209953,2cyclictest743-21snmpd00:20:392
175209953,2cyclictest2263-21basename23:50:002
175209952,3cyclictest557-21NetworkManager22:14:292
175209952,3cyclictest557-21NetworkManager00:37:452
175209952,3cyclictest5030-21sed19:55:212
175209952,2cyclictest30280-21systemctl22:20:002
175209952,2cyclictest24944-21grep22:05:162
175209952,2cyclictest244-20systemd-journal20:13:392
175209952,2cyclictest15158-21wc20:20:172
175209950,5cyclictest557-21NetworkManager20:41:092
175169955,0cyclictest741-21lldpd19:35:211
175169955,0cyclictest741-21lldpd19:34:561
175169955,0cyclictest522-21avahi-daemon00:31:351
175169954,1cyclictest743-21snmpd20:06:481
175169954,1cyclictest743-21snmpd00:05:571
175169953,2cyclictest22561-21cat20:40:131
175169952,2cyclictest8353-21dump-pmu-power00:04:591
175169952,2cyclictest31280-21ls23:40:141
175169952,2cyclictest29172-21find20:55:181
175169952,2cyclictest21654-21awk23:15:171
175169952,2cyclictest21186-21ntp_kernel_pll_21:55:171
175169952,2cyclictest13608-21sed21:35:211
175169952,2cyclictest11110-21wc20:10:201
175169951,3cyclictest13800-21timerandwakeup22:55:201
175169950,4cyclictest21971-21ntp_states00:35:181
175129955,0cyclictest743-21snmpd20:25:280
175129955,0cyclictest741-21lldpd20:33:130
175129955,0cyclictest506-21systemd-resolve21:30:510
175129954,1cyclictest743-21snmpd23:53:200
175129954,1cyclictest0-21swapper/000:25:130
175129952,2cyclictest25251-21xargs20:45:230
175129952,2cyclictest23677-21date19:25:000
175129952,2cyclictest22213-21grep00:35:200
175129952,2cyclictest12868-21sed21:35:150
175129952,1cyclictest191rcu_preempt22:05:000
175129950,4cyclictest1443-21ntpq22:25:160
175209943,1cyclictest421ktimers/222:45:022
175209943,1cyclictest0-21swapper/221:05:142
175209942,2cyclictest12778-21expr22:55:122
175209941,3cyclictest30806-21memory19:40:152
175209941,2cyclictest31527-21grep23:40:162
175209941,2cyclictest244-20systemd-journal23:21:482
175209941,2cyclictest16242-21fschecks_count20:25:142
175209940,4cyclictest15183-21irqstats23:00:152
175209940,4cyclictest15124-21ntpq21:40:152
175169943,1cyclictest21922-21kworker/1:1+events19:19:291
175169943,1cyclictest21922-21kworker/1:1+events00:20:011
175169941,2cyclictest4749-21grep22:35:131
175169940,3cyclictest18155-21irqstats19:10:141
175129942,2cyclictest30992-21ntpq21:00:170
175129941,3cyclictest20098-21apt-get20:35:130
175129941,2cyclictest575-21rs:main0
175129941,2cyclictest28958-21ntpq20:55:160
175129941,2cyclictest17980-21grep23:05:210
175129940,3cyclictest32599-21fw_packets19:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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