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2026-06-23 - 07:03

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 Tue Jun 23, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30019991918,1cyclictest65850irq/126-lan20:30:200
30019991918,1cyclictest65850irq/126-lan19:49:230
30019991817,1cyclictest65850irq/126-lan23:50:130
30019991817,1cyclictest65850irq/126-lan22:25:110
30019991717,0cyclictest65850irq/126-lan21:28:220
30019991717,0cyclictest65850irq/126-lan00:35:120
30019991716,1cyclictest65850irq/126-lan23:45:200
30019991716,1cyclictest65850irq/126-lan23:30:220
30019991716,1cyclictest65850irq/126-lan23:04:210
30019991716,1cyclictest65850irq/126-lan22:45:220
30019991716,1cyclictest65850irq/126-lan22:10:170
30019991716,1cyclictest65850irq/126-lan21:35:200
30019991716,1cyclictest65850irq/126-lan21:15:120
30019991716,1cyclictest65850irq/126-lan20:15:170
30019991716,1cyclictest65850irq/126-lan20:05:170
30019991716,1cyclictest65850irq/126-lan20:00:150
30019991716,1cyclictest65850irq/126-lan19:15:140
30019991716,1cyclictest65850irq/126-lan00:25:210
30019991716,1cyclictest65850irq/126-lan00:15:190
30029991614,2cyclictest717-21ntpd00:23:492
30019991616,0cyclictest65850irq/126-lan22:50:120
30019991616,0cyclictest65850irq/126-lan21:00:200
30019991616,0cyclictest65850irq/126-lan21:00:200
30019991616,0cyclictest65850irq/126-lan20:55:130
30019991616,0cyclictest65850irq/126-lan20:55:120
30019991616,0cyclictest65850irq/126-lan19:55:210
30019991616,0cyclictest65850irq/126-lan00:21:180
30019991615,1cyclictest65850irq/126-lan23:42:270
30019991615,1cyclictest65850irq/126-lan23:05:370
30019991615,1cyclictest65850irq/126-lan22:40:150
30019991615,1cyclictest65850irq/126-lan22:05:230
30019991615,1cyclictest65850irq/126-lan19:50:120
30019991615,1cyclictest65850irq/126-lan19:40:180
30019991615,1cyclictest65850irq/126-lan00:30:170
30019991615,1cyclictest65850irq/126-lan00:05:210
30019991614,1cyclictest65850irq/126-lan21:50:230
30019991515,0cyclictest65850irq/126-lan23:25:180
30019991515,0cyclictest65850irq/126-lan22:55:200
30019991515,0cyclictest65850irq/126-lan20:50:170
30019991515,0cyclictest65850irq/126-lan20:45:210
30019991515,0cyclictest65850irq/126-lan20:20:120
30019991514,1cyclictest65850irq/126-lan23:56:370
30019991514,1cyclictest65850irq/126-lan23:12:210
30019991514,1cyclictest65850irq/126-lan22:15:120
30019991514,1cyclictest65850irq/126-lan21:59:440
30019991514,1cyclictest65850irq/126-lan21:12:490
30019991514,1cyclictest65850irq/126-lan20:40:170
30019991514,1cyclictest65850irq/126-lan20:10:010
30019991414,0cyclictest65850irq/126-lan23:21:230
30019991414,0cyclictest65850irq/126-lan21:30:120
30019991414,0cyclictest65850irq/126-lan19:20:200
30019991413,1cyclictest65850irq/126-lan22:35:160
30019991413,1cyclictest65850irq/126-lan22:30:130
30019991413,1cyclictest65850irq/126-lan22:20:130
30019991413,1cyclictest65850irq/126-lan19:10:170
30019991413,1cyclictest65850irq/126-lan00:00:130
30019991312,1cyclictest65850irq/126-lan23:35:130
30019991312,1cyclictest65850irq/126-lan22:00:170
30019991312,1cyclictest65850irq/126-lan21:45:100
30019991212,0cyclictest65850irq/126-lan21:40:210
30019991212,0cyclictest65850irq/126-lan20:25:130
30019991211,1cyclictest65850irq/126-lan19:29:010
30019991111,0cyclictest65850irq/126-lan19:30:160
30019991110,1cyclictest65850irq/126-lan21:24:220
30019991110,1cyclictest65850irq/126-lan21:05:220
3001999109,1cyclictest65850irq/126-lan23:15:170
30019991010,0cyclictest65850irq/126-lan20:37:450
300299998,1cyclictest743-21snmpd22:06:292
300299998,1cyclictest743-21snmpd20:57:492
300299998,1cyclictest743-21snmpd20:57:482
300299998,1cyclictest741-21lldpd21:21:232
300199991,4cyclictest24711-21taskset00:10:090
300359988,0cyclictest743-21snmpd22:05:593
300359988,0cyclictest741-21lldpd23:59:063
300359988,0cyclictest741-21lldpd23:54:233
300359988,0cyclictest741-21lldpd23:37:183
300359988,0cyclictest741-21lldpd21:29:563
300359988,0cyclictest741-21lldpd21:02:103
300359988,0cyclictest741-21lldpd21:02:093
300359988,0cyclictest741-21lldpd20:10:583
300359987,1cyclictest743-21snmpd19:17:053
300359987,1cyclictest741-21lldpd22:01:053
300359987,1cyclictest741-21lldpd21:33:213
300359986,2cyclictest743-21snmpd20:18:343
300299988,0cyclictest743-21snmpd23:00:042
300299988,0cyclictest741-21lldpd21:16:262
300299987,1cyclictest741-21lldpd23:12:532
300299987,1cyclictest741-21lldpd22:25:142
300299987,1cyclictest741-21lldpd21:07:172
300299987,1cyclictest741-21lldpd20:34:172
300299986,2cyclictest743-21snmpd20:40:212
300299986,2cyclictest743-21snmpd19:25:092
300299986,2cyclictest717-21ntpd23:35:062
300299986,2cyclictest717-21ntpd23:30:092
300299986,2cyclictest717-21ntpd23:25:252
300299986,2cyclictest717-21ntpd23:24:382
300299986,2cyclictest717-21ntpd22:45:352
300299986,2cyclictest717-21ntpd22:20:362
300299986,2cyclictest717-21ntpd21:40:312
300299986,2cyclictest717-21ntpd20:50:262
300299986,2cyclictest717-21ntpd20:21:432
300299986,2cyclictest717-21ntpd20:05:112
300299986,2cyclictest717-21ntpd20:00:072
300299986,2cyclictest717-21ntpd19:55:592
300299986,2cyclictest717-21ntpd00:30:282
300299985,2cyclictest717-21ntpd00:35:092
300259988,0cyclictest743-21snmpd19:23:171
300259988,0cyclictest741-21lldpd23:44:311
300259988,0cyclictest741-21lldpd20:41:481
300259987,1cyclictest743-21snmpd00:23:521
300259987,1cyclictest741-21lldpd23:29:511
300259987,1cyclictest522-21avahi-daemon00:27:241
300259987,0cyclictest191rcu_preempt23:09:371
300259987,0cyclictest191rcu_preempt20:35:161
300259987,0cyclictest191rcu_preempt00:05:131
300259987,0cyclictest191rcu_preempt00:00:171
300259986,2cyclictest743-21snmpd21:48:171
300259986,2cyclictest32154-21cat21:50:141
300259986,0cyclictest191rcu_preempt19:59:001
300259985,0cyclictest191rcu_preempt00:35:191
300259983,3cyclictest25509-21ntpq00:10:171
300259981,2cyclictest1385-21cat00:30:151
300259980,5cyclictest1793-21timerandwakeup19:15:201
300199982,3cyclictest0-21swapper/019:35:050
300359977,0cyclictest743-21snmpd20:02:163
300359977,0cyclictest743-21snmpd19:21:033
300359977,0cyclictest741-21lldpd23:46:023
300359977,0cyclictest741-21lldpd23:22:283
300359977,0cyclictest741-21lldpd00:38:273
300359976,1cyclictest743-21snmpd23:26:253
300359976,1cyclictest743-21snmpd23:17:073
300359976,1cyclictest743-21snmpd22:11:353
300359976,1cyclictest743-21snmpd20:51:293
300359976,1cyclictest743-21snmpd20:21:283
300359976,1cyclictest522-21avahi-daemon21:17:473
300359976,1cyclictest522-21avahi-daemon20:27:083
300359975,2cyclictest743-21snmpd22:54:093
300359975,2cyclictest743-21snmpd22:22:023
300359975,2cyclictest743-21snmpd22:19:573
300359975,2cyclictest743-21snmpd21:57:083
300359975,2cyclictest743-21snmpd21:46:113
300359975,2cyclictest743-21snmpd21:21:453
300359975,2cyclictest743-21snmpd20:06:533
300359975,2cyclictest743-21snmpd19:55:513
300299977,0cyclictest743-21snmpd21:47:442
300299977,0cyclictest741-21lldpd22:36:202
300299977,0cyclictest741-21lldpd21:51:062
300299977,0cyclictest741-21lldpd21:35:322
300299977,0cyclictest741-21lldpd21:14:512
300299977,0cyclictest741-21lldpd20:48:092
300299977,0cyclictest741-21lldpd20:38:152
300299977,0cyclictest741-21lldpd19:42:262
300299977,0cyclictest741-21lldpd00:10:342
300299976,1cyclictest743-21snmpd23:44:532
300299976,1cyclictest743-21snmpd19:24:522
300299976,1cyclictest741-21lldpd23:50:072
300299975,2cyclictest743-21snmpd21:32:532
300299975,2cyclictest743-21snmpd20:10:012
300299975,2cyclictest743-21snmpd19:52:092
300299975,2cyclictest717-21ntpd19:10:402
300259977,0cyclictest743-21snmpd23:56:131
300259977,0cyclictest741-21lldpd20:33:031
300259976,1cyclictest743-21snmpd22:47:181
300259976,1cyclictest743-21snmpd22:30:421
300259976,1cyclictest741-21lldpd22:55:001
300259976,1cyclictest741-21lldpd22:07:191
300259976,0cyclictest191rcu_preempt22:15:161
300259975,2cyclictest743-21snmpd21:25:151
300259975,2cyclictest18788-21cat22:35:151
300259975,1cyclictest191rcu_preempt22:00:001
300259975,0cyclictest191rcu_preempt21:40:141
300259974,2cyclictest0-21swapper/119:10:121
300259974,1cyclictest26798-21hddtemp_smartct22:55:131
300259972,3cyclictest4161-21ntpq22:00:161
300259972,1cyclictest16077-21apt-config23:49:591
300259971,4cyclictest24507-21uname21:30:181
300259971,2cyclictest12669-21ntpq22:20:161
300259970,5cyclictest8855-21ntp_192.168.11423:30:161
300259970,5cyclictest847-21ntpq23:10:161
300259970,5cyclictest3850-21/usr/sbin/munin23:19:591
300259970,5cyclictest27475-21ntpq00:15:161
300259970,2cyclictest19678-21ntpq20:00:171
300359966,0cyclictest743-21snmpd21:13:153
300359966,0cyclictest743-21snmpd00:20:013
300359966,0cyclictest522-21avahi-daemon23:33:043
300359965,1cyclictest743-21snmpd22:39:483
300359965,1cyclictest244-20systemd-journal23:08:293
300359965,1cyclictest11428-21needreboot19:40:143
300359963,3cyclictest743-21snmpd20:55:163
300359963,3cyclictest743-21snmpd20:55:153
300359962,3cyclictest913-21ntp_states23:10:173
300299966,0cyclictest743-21snmpd22:19:272
300299966,0cyclictest741-21lldpd23:56:402
300299966,0cyclictest741-21lldpd00:07:192
300299966,0cyclictest575-21rs:main2
300299965,1cyclictest743-21snmpd00:17:182
300299961,4cyclictest743-21snmpd19:35:132
300259965,1cyclictest743-21snmpd23:20:021
300259965,1cyclictest717-21ntpd21:00:431
300259965,1cyclictest717-21ntpd21:00:421
300259965,1cyclictest331ktimers/120:20:121
300259965,0cyclictest191rcu_preempt20:55:161
300259965,0cyclictest191rcu_preempt20:55:151
300259963,2cyclictest25822-21df21:35:121
300259963,1cyclictest34-21ksoftirqd/119:35:141
300259963,1cyclictest20665-21fw_forwarded_lo22:40:121
300259963,1cyclictest191rcu_preempt20:50:151
300259963,1cyclictest191rcu_preempt20:45:171
300259962,2cyclictest34-21ksoftirqd/119:29:541
300259961,3cyclictest34-21ksoftirqd/123:50:171
300259961,3cyclictest34-21ksoftirqd/121:20:161
300259961,3cyclictest14725-21ntpq22:25:141
300259961,3cyclictest14431-21ntpq21:05:191
300259961,3cyclictest13481-21ntp_192.168.11419:45:151
300259960,4cyclictest30231-21ntpq20:25:181
300259960,4cyclictest29227-21ld23:00:181
300259960,4cyclictest25493-21df20:15:111
300259960,4cyclictest21717-21smartctl20:05:181
300259960,4cyclictest10171-21apt-get23:35:121
300259960,3cyclictest8458-21ls22:10:211
300259960,3cyclictest34-21ksoftirqd/120:10:181
300259960,3cyclictest15626-21ntpq19:50:171
300259960,2cyclictest34-21ksoftirqd/121:10:131
300359955,0cyclictest743-21snmpd20:45:353
300359955,0cyclictest743-21snmpd00:25:183
300359955,0cyclictest522-21avahi-daemon21:51:533
300359955,0cyclictest522-21avahi-daemon21:08:323
300359955,0cyclictest522-21avahi-daemon19:51:383
300359954,1cyclictest522-21avahi-daemon20:40:183
300359954,1cyclictest13539-21ntpq19:45:163
300359953,2cyclictest743-21snmpd00:33:163
300359953,2cyclictest743-21snmpd00:11:093
300359952,3cyclictest31692-21fw_conntrack20:30:133
300359952,2cyclictest9829-21sed19:35:213
300359952,2cyclictest23012-21cut00:05:133
300359952,2cyclictest21212-21collect222:40:163
300359951,3cyclictest1408-21expr20:35:123
300359950,4cyclictest31436-21ntpq19:10:173
300359950,4cyclictest23230-21ntpq22:45:183
300299955,0cyclictest741-21lldpd23:09:582
300299955,0cyclictest741-21lldpd00:28:152
300299954,1cyclictest741-21lldpd22:14:022
300299954,1cyclictest0-21swapper/223:15:112
300299953,2cyclictest743-21snmpd22:33:392
300299952,3cyclictest8057-21sed19:30:202
300299952,3cyclictest557-21NetworkManager21:58:272
300299952,3cyclictest557-21NetworkManager21:00:172
300299952,3cyclictest557-21NetworkManager21:00:162
300299952,3cyclictest27300-21open_inodes22:55:172
300299952,2cyclictest5155-21systemd-run22:05:012
300299952,2cyclictest244-20systemd-journal22:41:522
300299952,2cyclictest15314-21threads23:45:192
300299951,3cyclictest22939-21sed21:25:192
300299950,4cyclictest30100-21ntpq20:25:162
300299950,4cyclictest13576-21ntpq19:45:162
300259953,1cyclictest10922-21df19:40:111
300259952,1cyclictest0-21swapper/121:15:151
300259950,3cyclictest6715-21apt-get19:30:111
300359944,0cyclictest741-21lldpd21:40:183
300359944,0cyclictest25958-21fw_conntrack21:35:133
300359942,2cyclictest6672-21cron19:30:003
300359942,2cyclictest5888-21sed19:25:193
300359942,2cyclictest26503-21grep22:55:113
300359942,2cyclictest17033-21ntpq22:30:173
300359941,3cyclictest557-21NetworkManager23:00:053
300359941,2cyclictest21828-21timerandwakeup00:00:203
300359941,2cyclictest14496-21missed_timers22:25:123
300359940,4cyclictest27484-21ntpq00:15:163
300359940,3cyclictest12369-21diskstats23:40:123
300299943,1cyclictest0-21swapper/219:15:142
300299941,3cyclictest25119-21ntpq22:50:162
300299940,4cyclictest21423-21ntpq00:00:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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