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2026-08-18 - 15:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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 rackcslot7s.osadl.org (updated Tue Aug 18, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231084321200,4sleep33056-21PK-Backend19:55:203
238418121040,4sleep33056-21PK-Backend23:25:203
22930542890,7sleep20-21swapper/219:05:292
229194727447,17sleep30-21swapper/319:05:113
22927172680,6sleep1251rcuc/119:05:241
229326226343,14sleep00-21swapper/019:07:570
23338212580,8chrt421ksoftirqd/321:00:243
23650232310,3sleep00-21swapper/022:30:230
2293571992719,6cyclictest2321966-21cron20:30:011
229357399260,2cyclictest141rcu_preempt22:20:232
139099260,4rtkit-daemon1389-21rtkit-daemon21:35:183
139099260,4rtkit-daemon1389-21rtkit-daemon21:00:402
2293577992518,6cyclictest0-21swapper/323:45:213
229357199248,14cyclictest2334375-21sh21:05:001
23291942230,3sleep33056-21PK-Backend20:50:133
2293577992315,6cyclictest883-21dbus-daemon21:35:003
229357399230,21cyclictest1788620-21WebKitWebProces21:52:532
2293566992316,5cyclictest1-21systemd23:40:000
2293577992219,2cyclictest3056-21PK-Backend22:01:523
2293577992210,4cyclictest2371990-21grep22:50:193
229357799220,20cyclictest3056-21PK-Backend23:23:453
229357799220,20cyclictest3056-21PK-Backend21:43:073
2293573992220,1cyclictest0-21swapper/221:27:242
2293573992220,1cyclictest0-21swapper/220:53:042
2293573992220,1cyclictest0-21swapper/219:33:482
2293573992220,1cyclictest0-21swapper/200:27:182
2293573992220,1cyclictest0-21swapper/200:27:182
2293573992219,2cyclictest0-21swapper/220:32:292
229357199223,17cyclictest2362518-21grep22:25:141
2293571992214,5cyclictest1095-21runrttasks20:55:231
2293571992214,5cyclictest1095-21runrttasks20:40:151
2293571992214,5cyclictest1095-21runrttasks20:40:151
229356699221,5cyclictest2346534-21perf21:40:000
139099220,3rtkit-daemon1389-21rtkit-daemon20:20:143
24010702210,4sleep33056-21PK-Backend00:15:123
2293577992119,1cyclictest3056-21PK-Backend23:57:453
2293577992119,1cyclictest3056-21PK-Backend23:17:303
2293577992119,1cyclictest3056-21PK-Backend22:20:523
2293577992119,1cyclictest3056-21PK-Backend00:30:363
2293577992119,1cyclictest3056-21PK-Backend00:21:583
2293577992118,2cyclictest3056-21PK-Backend22:30:453
2293577992118,2cyclictest3056-21PK-Backend22:10:233
2293577992118,2cyclictest3056-21PK-Backend22:05:103
2293577992118,2cyclictest3056-21PK-Backend20:35:343
229357799210,20cyclictest0-21swapper/319:15:443
229357799210,19cyclictest3056-21PK-Backend20:57:093
229357799210,19cyclictest3056-21PK-Backend19:25:173
2293573992119,1cyclictest0-21swapper/223:27:022
2293573992119,1cyclictest0-21swapper/222:44:172
2293573992119,1cyclictest0-21swapper/222:30:582
2293573992119,1cyclictest0-21swapper/221:41:232
2293573992119,1cyclictest0-21swapper/221:34:002
2293573992119,1cyclictest0-21swapper/221:05:062
2293573992119,1cyclictest0-21swapper/220:35:472
2293573992119,1cyclictest0-21swapper/220:11:332
2293573992119,1cyclictest0-21swapper/219:56:402
2293573992119,1cyclictest0-21swapper/219:44:162
2293573992119,1cyclictest0-21swapper/219:44:162
2293573992119,1cyclictest0-21swapper/200:34:012
2293573992119,1cyclictest0-21swapper/200:16:022
2293573992117,3cyclictest2388124-21nm-dispatcher23:36:492
2293573992113,6cyclictest883-21dbus-daemon21:16:472
229357399210,20cyclictest0-21swapper/223:48:582
229357399210,20cyclictest0-21swapper/223:31:352
229357399210,20cyclictest0-21swapper/223:21:412
229357399210,20cyclictest0-21swapper/222:35:522
229357399210,20cyclictest0-21swapper/222:11:592
229357399210,20cyclictest0-21swapper/221:56:582
229357399210,20cyclictest0-21swapper/221:35:222
229357399210,20cyclictest0-21swapper/220:47:022
229357399210,20cyclictest0-21swapper/219:51:462
229357399210,20cyclictest0-21swapper/200:01:022
229357199213,15cyclictest2405190-21switchtime00:25:251
229357199213,15cyclictest2405190-21switchtime00:25:241
2293571992115,4cyclictest2371514-21cpuspeed_turbos22:50:131
2293571992114,4cyclictest1095-21runrttasks23:10:171
2293571992113,6cyclictest2299774-21cat19:25:141
2293571992112,6cyclictest2401694-21python300:15:201
229357199210,20cyclictest3056-21PK-Backend22:58:511
2293566992114,5cyclictest436-20systemd-journal20:54:550
2293566992113,6cyclictest2353725-21apt22:00:120
2293566992113,6cyclictest2319144-21df20:20:140
229356699210,2cyclictest2311189-21users19:55:230
229356699210,2cyclictest2305318-21/usr/sbin/munin19:40:160
229356699210,2cyclictest2305318-21/usr/sbin/munin19:40:150
229356699210,20cyclictest0-21swapper/023:08:480
229356699210,20cyclictest0-21swapper/022:47:470
139099210,18rtkit-daemon1997-21gvfs-afc-volume22:25:552
24026812200,3sleep00-21swapper/000:20:140
229357799205,12cyclictest2301455-21apt19:30:113
2293577992018,1cyclictest3056-21PK-Backend23:43:123
2293577992018,1cyclictest3056-21PK-Backend22:56:073
2293577992018,1cyclictest3056-21PK-Backend22:19:303
2293577992018,1cyclictest3056-21PK-Backend21:06:023
2293577992018,1cyclictest3056-21PK-Backend00:26:183
2293577992018,1cyclictest3056-21PK-Backend00:26:183
2293577992018,1cyclictest0-21swapper/319:13:343
2293577992017,2cyclictest3056-21PK-Backend23:35:203
2293577992017,2cyclictest3056-21PK-Backend21:58:353
229357799201,16cyclictest2399954-21python300:10:203
229357799200,1cyclictest3056-21PK-Backend20:25:333
229357799200,1cyclictest3056-21PK-Backend20:14:593
229357799200,1cyclictest3056-21PK-Backend19:46:543
229357799200,1cyclictest3056-21PK-Backend19:46:543
229357799200,19cyclictest3056-21PK-Backend21:46:583
229357799200,19cyclictest3056-21PK-Backend20:40:343
229357799200,19cyclictest3056-21PK-Backend20:40:343
229357799200,19cyclictest0-21swapper/323:51:503
229357799200,19cyclictest0-21swapper/321:27:253
229357799200,19cyclictest0-21swapper/300:08:463
229357799200,18cyclictest3056-21PK-Backend20:49:263
2293573992018,1cyclictest3056-21PK-Backend23:57:172
2293573992018,1cyclictest0-21swapper/223:53:322
2293573992018,1cyclictest0-21swapper/222:57:282
2293573992018,1cyclictest0-21swapper/222:01:042
2293573992018,1cyclictest0-21swapper/221:45:292
2293573992018,1cyclictest0-21swapper/221:14:132
2293573992018,1cyclictest0-21swapper/220:05:522
2293573992018,1cyclictest0-21swapper/200:23:332
2293573992018,1cyclictest0-21swapper/200:12:182
2293573992015,3cyclictest2312039-21tr20:00:142
2293573992013,5cyclictest2380694-21ntpq23:15:162
229357399200,1cyclictest0-21swapper/222:05:092
229357399200,1cyclictest0-21swapper/200:07:452
229357399200,19cyclictest0-21swapper/219:28:412
229357399200,19cyclictest0-21swapper/219:24:222
229357399200,19cyclictest0-21swapper/219:17:192
229357399200,19cyclictest0-21swapper/200:39:552
2293571992018,1cyclictest3056-21PK-Backend22:47:161
2293571992018,1cyclictest3056-21PK-Backend22:41:011
2293571992018,1cyclictest0-21swapper/122:02:541
2293571992018,1cyclictest0-21swapper/121:50:521
2293571992018,1cyclictest0-21swapper/121:25:031
2293571992018,1cyclictest0-21swapper/120:51:101
2293571992014,5cyclictest883-21dbus-daemon20:18:031
2293571992012,5cyclictest1-21systemd22:36:481
2293571992011,7cyclictest1-21systemd00:00:001
229357199200,5cyclictest0-21swapper/120:24:121
229357199200,2cyclictest2337496-21taskset21:10:431
229357199200,1cyclictest0-21swapper/123:27:581
229357199200,1cyclictest0-21swapper/122:11:401
229357199200,1cyclictest0-21swapper/120:05:131
229357199200,19cyclictest3056-21PK-Backend19:33:501
229357199200,19cyclictest0-21swapper/123:49:421
229357199200,19cyclictest0-21swapper/123:23:261
229357199200,19cyclictest0-21swapper/121:35:301
229357199200,19cyclictest0-21swapper/121:30:171
229357199200,19cyclictest0-21swapper/121:21:451
229357199200,19cyclictest0-21swapper/120:46:291
229357199200,19cyclictest0-21swapper/120:39:541
229357199200,19cyclictest0-21swapper/100:39:101
229357199200,19cyclictest0-21swapper/100:31:531
229357199200,19cyclictest0-21swapper/100:23:011
2293566992018,1cyclictest0-21swapper/023:27:080
2293566992018,1cyclictest0-21swapper/019:12:370
2293566992018,1cyclictest0-21swapper/000:25:550
2293566992018,1cyclictest0-21swapper/000:25:540
2293566992013,5cyclictest2382356-21cat23:20:180
2293566992013,5cyclictest1-21systemd20:50:000
2293566992012,6cyclictest2361419-21awk22:20:210
229356699200,1cyclictest0-21swapper/019:32:590
229356699200,19cyclictest3056-21PK-Backend20:17:410
229356699200,19cyclictest0-21swapper/023:44:180
229356699200,19cyclictest0-21swapper/023:11:470
229356699200,19cyclictest0-21swapper/022:50:440
229356699200,19cyclictest0-21swapper/022:12:100
229356699200,19cyclictest0-21swapper/021:30:000
229356699200,19cyclictest0-21swapper/021:22:500
229356699200,19cyclictest0-21swapper/020:56:540
229356699200,19cyclictest0-21swapper/020:31:530
229356699200,19cyclictest0-21swapper/020:25:310
229356699200,19cyclictest0-21swapper/000:09:320
139099200,3rtkit-daemon1389-21rtkit-daemon20:55:252
23038592190,4sleep23056-21PK-Backend19:35:182
2293577991917,1cyclictest0-21swapper/320:08:443
2293577991917,1cyclictest0-21swapper/319:40:253
2293577991917,1cyclictest0-21swapper/319:40:253
2293577991917,1cyclictest0-21swapper/300:00:423
229357799191,6cyclictest2339129-21sort21:15:233
2293577991916,2cyclictest3056-21PK-Backend19:22:333
229357799191,16cyclictest23750262sleep323:00:143
2293577991911,6cyclictest2368937-21who22:40:223
229357799190,1cyclictest3056-21PK-Backend23:10:263
229357799190,1cyclictest3056-21PK-Backend20:02:283
229357799190,1cyclictest3056-21PK-Backend19:37:273
2293573991913,4cyclictest2359051-21cpuspeed_turbos22:15:122
229357399190,1cyclictest0-21swapper/223:13:372
229357399190,1cyclictest0-21swapper/223:02:352
229357399190,1cyclictest0-21swapper/221:20:492
229357399190,1cyclictest0-21swapper/219:45:042
229357399190,1cyclictest0-21swapper/219:45:042
229357399190,18cyclictest0-21swapper/220:27:152
2293571991917,1cyclictest3056-21PK-Backend00:09:021
2293571991917,1cyclictest0-21swapper/121:43:281
2293571991917,1cyclictest0-21swapper/121:08:471
2293571991917,1cyclictest0-21swapper/119:14:511
2293571991916,2cyclictest3056-21PK-Backend23:08:181
2293571991916,2cyclictest0-21swapper/123:40:501
2293571991915,3cyclictest1095-21runrttasks20:12:451
2293571991912,5cyclictest883-21dbus-daemon22:08:031
229357199190,1cyclictest0-21swapper/122:15:121
229357199190,1cyclictest0-21swapper/121:55:311
229357199190,1cyclictest0-21swapper/119:47:021
229357199190,1cyclictest0-21swapper/119:47:021
229357199190,18cyclictest0-21swapper/123:39:141
229357199190,18cyclictest0-21swapper/121:48:081
229357199190,18cyclictest0-21swapper/100:14:091
2293566991917,1cyclictest0-21swapper/022:44:150
2293566991917,1cyclictest0-21swapper/022:39:210
2293566991917,1cyclictest0-21swapper/022:17:050
2293566991917,1cyclictest0-21swapper/021:47:170
2293566991917,1cyclictest0-21swapper/021:31:220
2293566991914,3cyclictest2323984-21apt20:35:110
2293566991912,5cyclictest883-21dbus-daemon20:05:000
2293566991912,5cyclictest2304168-21ls19:35:220
229356699190,1cyclictest3056-21PK-Backend23:51:000
229356699190,1cyclictest3056-21PK-Backend00:10:200
229356699190,1cyclictest0-21swapper/023:45:060
229356699190,1cyclictest0-21swapper/021:13:440
229356699190,1cyclictest0-21swapper/021:07:560
229356699190,1cyclictest0-21swapper/020:05:440
229356699190,18cyclictest0-21swapper/023:18:150
229356699190,18cyclictest0-21swapper/022:09:280
229356699190,18cyclictest0-21swapper/021:41:150
229356699190,18cyclictest0-21swapper/020:10:380
229356699190,18cyclictest0-21swapper/019:27:180
229356699190,18cyclictest0-21swapper/019:16:090
23716712180,3sleep23056-21PK-Backend22:50:142
2293577991816,1cyclictest3056-21PK-Backend22:29:243
2293577991816,1cyclictest3056-21PK-Backend20:30:333
2293577991813,3cyclictest2377369-21rt-features23:05:193
2293573991816,1cyclictest0-21swapper/222:46:252
2293573991816,1cyclictest0-21swapper/220:18:022
2293573991815,2cyclictest0-21swapper/223:06:202
2293571991816,1cyclictest3056-21PK-Backend23:53:271
2293571991816,1cyclictest0-21swapper/123:16:571
2293571991816,1cyclictest0-21swapper/122:24:591
2293571991816,1cyclictest0-21swapper/119:50:461
2293571991812,5cyclictest2338505-21seq21:15:161
2293571991811,5cyclictest26-21ksoftirqd/119:40:231
2293571991811,5cyclictest26-21ksoftirqd/119:40:231
2293571991811,5cyclictest2312232-21entropy20:00:161
2293566991816,1cyclictest0-21swapper/023:31:400
2293566991816,1cyclictest0-21swapper/021:59:200
2293566991816,1cyclictest0-21swapper/021:53:190
2293566991816,1cyclictest0-21swapper/021:17:020
2293566991816,1cyclictest0-21swapper/020:44:170
2293566991816,1cyclictest0-21swapper/020:44:170
2293566991816,1cyclictest0-21swapper/019:54:010
2293566991816,1cyclictest0-21swapper/000:34:000
2293566991816,1cyclictest0-21swapper/000:03:370
2293566991812,5cyclictest2308242-21sed19:50:000
2293566991812,5cyclictest2308242-21sed19:50:000
2293566991811,5cyclictest2373159-21cat22:55:120
2293566991811,5cyclictest2363345-21ls22:25:230
229356699180,1cyclictest0-21swapper/000:16:150
2293577991715,1cyclictest3056-21PK-Backend21:14:413
2293577991715,1cyclictest3056-21PK-Backend19:51:133
2293577991715,1cyclictest0-21swapper/322:45:323
2293577991715,1cyclictest0-21swapper/321:22:583
2293577991714,2cyclictest3056-21PK-Backend21:54:433
2293577991711,4cyclictest2409245-21latency_hist00:40:003
2293573991715,1cyclictest0-21swapper/219:10:162
2293573991711,4cyclictest2156-21gnome-shell20:24:092
229357199178,6cyclictest2323718-21apt20:35:001
2293571991715,1cyclictest0-21swapper/123:01:491
2293571991715,1cyclictest0-21swapper/119:56:141
2293571991714,2cyclictest3056-21PK-Backend00:03:551
2293571991711,5cyclictest2296624-21needreboot19:15:181
2293571991710,5cyclictest2304107-21cat19:35:211
2293566991715,1cyclictest0-21swapper/000:36:570
2293566991710,6cyclictest883-21dbus-daemon23:56:510
2293566991710,5cyclictest2333547-21cat21:00:200
2293577991614,1cyclictest3056-21PK-Backend23:33:113
2293577991614,1cyclictest3056-21PK-Backend22:38:433
229357399165,2cyclictest141rcu_preempt20:40:172
229357399165,2cyclictest141rcu_preempt20:40:162
229357199169,6cyclictest2385322-21tr23:30:131
2293571991610,4cyclictest2156-21gnome-shell19:21:091
2293566991611,3cyclictest1095-21runrttasks19:20:030
2293577991513,1cyclictest3056-21PK-Backend20:17:093
2293573991511,3cyclictest2388851-21cpuspeed_turbos23:40:122
229357199153,7cyclictest2364125-21apt22:30:111
2293566991513,1cyclictest3056-21PK-Backend23:00:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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