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2026-01-23 - 12:24
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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 rack7slot7s.osadl.org (updated Fri Jan 23, 2026 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2140029573,17sleep10-21swapper/119:05:211
2214929469,9sleep00-21swapper/019:06:120
2238628472,8sleep20-21swapper/219:09:162
2234228370,9sleep30-21swapper/319:08:403
63782700,0sleep00-21swapper/022:59:410
2253499251,4cyclictest0-21swapper/300:15:143
2252499252,1cyclictest32508-21apt-get19:30:131
22524992423,1cyclictest0-21swapper/123:48:381
2253099230,4cyclictest0-21swapper/223:24:172
22520992222,0cyclictest0-21swapper/021:34:260
2253099210,4cyclictest0-21swapper/222:17:012
2252499210,20cyclictest0-21swapper/123:36:281
2252099210,0cyclictest0-21swapper/023:32:400
2253099201,1cyclictest0-21swapper/221:58:502
2252499201,1cyclictest0-21swapper/121:46:451
2252099203,6cyclictest0-21swapper/023:15:130
22520992019,1cyclictest0-21swapper/021:17:080
22520992017,3cyclictest0-21swapper/022:42:090
2253499191,3cyclictest141rcu_preempt22:32:273
2253499191,3cyclictest141rcu_preempt22:32:273
2253099190,1cyclictest0-21swapper/219:55:212
2252499192,8cyclictest5916-21kworker/1:223:23:371
22524991919,0cyclictest0-21swapper/121:24:011
22524991917,2cyclictest0-21swapper/121:55:301
2252499190,19cyclictest0-21swapper/100:37:491
2252499190,18cyclictest0-21swapper/123:02:151
2252499190,16cyclictest0-21swapper/122:34:191
2252499190,16cyclictest0-21swapper/122:34:181
2252499190,16cyclictest0-21swapper/100:29:361
2252099195,7cyclictest28691-21idleruntime-cro20:30:000
22520991915,3cyclictest13-21ksoftirqd/022:25:140
2252099190,1cyclictest0-21swapper/023:22:000
2252099190,18cyclictest0-21swapper/023:40:120
280932180,1chrt28094-21ssh21:16:331
22534991812,3cyclictest19966-21kworker/3:021:58:403
22530991816,2cyclictest27120-21kworker/u8:023:37:162
2253099180,17cyclictest0-21swapper/221:20:162
2252499180,1cyclictest15572-21diskmemload22:47:591
2252499180,12cyclictest0-21swapper/123:25:141
2252099186,7cyclictest13-21ksoftirqd/021:59:180
2252099180,1cyclictest0-21swapper/022:34:100
2252099180,1cyclictest0-21swapper/022:34:100
2252099180,18cyclictest0-21swapper/021:52:470
287472170,2sleep20-21swapper/223:12:302
22534991715,1cyclictest0-21swapper/322:50:143
2253499171,12cyclictest15572-21diskmemload23:37:003
2253099177,5cyclictest11258-21munin-run22:05:002
2253099176,9cyclictest744-21unixbench_multi22:55:252
2253099171,10cyclictest0-21swapper/223:44:312
2253099170,17cyclictest0-21swapper/222:43:452
22524991715,1cyclictest0-21swapper/122:50:171
2252499170,3cyclictest0-21swapper/122:24:071
22520991716,1cyclictest0-21swapper/023:52:190
2252099170,1cyclictest141rcu_preempt21:36:420
2253499169,6cyclictest20074-21tr21:50:203
2253499164,10cyclictest31296-21ssh22:55:123
22534991613,2cyclictest0-21swapper/323:05:443
2253499160,1cyclictest0-21swapper/300:09:113
2253499160,1cyclictest0-21swapper/300:09:113
2253099160,8cyclictest0-21swapper/200:27:552
22524991615,1cyclictest0-21swapper/100:21:461
2252499160,1cyclictest0-21swapper/100:16:251
2252499160,15cyclictest0-21swapper/122:04:451
2252499160,14cyclictest3945-21open_files23:55:211
2252499160,14cyclictest0-21swapper/123:10:131
22520991615,1cyclictest0-21swapper/000:20:480
2253099154,2cyclictest0-21swapper/223:33:252
2253099151,8cyclictest1935-21/usr/sbin/munin21:40:182
22530991514,1cyclictest0-21swapper/222:27:232
2253099150,2cyclictest0-21swapper/200:15:282
2253099150,1cyclictest0-21swapper/223:01:472
22524991513,1cyclictest0-21swapper/122:43:251
2252099156,5cyclictest8158-21gltestperf23:00:190
2252099154,6cyclictest3623-21awk20:45:000
2252099153,7cyclictest24189-21idleruntime-cro21:15:000
22520991515,0cyclictest0-21swapper/022:06:050
2252099150,14cyclictest0-21swapper/023:13:130
2253499142,11cyclictest0-21swapper/323:21:323
2253499141,8cyclictest0-21swapper/323:12:213
2253499141,4cyclictest141rcu_preempt23:52:023
22534991411,2cyclictest29158-21tr20:30:153
22534991411,2cyclictest22386-21awk22:50:003
22534991410,2cyclictest18334-21grep23:45:133
2253499140,14cyclictest0-21swapper/300:33:213
22530991412,2cyclictest0-21swapper/223:16:302
2253099140,1cyclictest0-21swapper/221:30:322
2253099140,14cyclictest0-21swapper/221:54:412
2253099140,13cyclictest0-21swapper/222:22:222
2252499148,6cyclictest5371-21apache223:44:561
22524991414,0cyclictest0-21swapper/122:12:181
22524991412,2cyclictest38150irq/131-snd_hda00:01:151
22524991410,3cyclictest94-21kswapd021:35:021
22524991410,3cyclictest28252-21head20:25:271
22524991410,2cyclictest12963-21head19:55:171
2252099140,9cyclictest0-21swapper/000:36:590
2252099140,1cyclictest0-21swapper/000:08:260
2252099140,1cyclictest0-21swapper/000:08:260
2252099140,14cyclictest0-21swapper/022:46:440
236602130,0chrt0-21swapper/200:07:032
236602130,0chrt0-21swapper/200:07:032
2253499139,3cyclictest25616-21grep23:30:133
2253499139,3cyclictest25518-21grep21:15:183
2253499138,3cyclictest14382-21awk20:00:003
2253499137,2cyclictest537-21snmpd00:12:083
22534991311,1cyclictest20396-21sh00:25:013
22534991310,2cyclictest7965-21grep19:45:183
22534991310,2cyclictest4470-21grep20:45:173
22534991310,2cyclictest14409-21cat21:05:193
2253499130,12cyclictest10333-21grep20:55:263
2253099132,7cyclictest25957-21munin-node21:35:112
22530991310,2cyclictest9930-21grep21:25:212
22530991310,2cyclictest7424-21tr20:50:182
22530991310,2cyclictest32524-21ls20:35:232
22530991310,2cyclictest31334-21sed00:30:302
22530991310,2cyclictest30975-21wc22:55:022
22530991310,2cyclictest24944-21sed20:20:202
22530991310,2cyclictest23947-21cat20:20:012
22530991310,2cyclictest2379-21cat19:35:002
22530991310,2cyclictest22502-21grep22:30:192
22530991310,2cyclictest22502-21grep22:30:182
22530991310,2cyclictest10781-21cron21:00:002
2253099130,2cyclictest0-21swapper/223:56:142
2253099130,2cyclictest0-21swapper/221:15:382
2253099130,1cyclictest0-21swapper/223:07:232
2253099130,13cyclictest0-21swapper/223:51:432
2253099130,12cyclictest4655-21grep20:45:182
2253099130,12cyclictest0-21swapper/200:39:442
2252499136,6cyclictest9886-21cron21:45:001
2252499133,3cyclictest225-21systemd-journal21:26:341
22524991310,2cyclictest3599-21cron20:45:011
22524991310,2cyclictest30542sleep122:19:151
22524991310,2cyclictest21441-21grep00:05:271
22524991310,2cyclictest21441-21grep00:05:271
22524991310,2cyclictest15135-21grep21:05:261
2252499130,1cyclictest0-21swapper/100:34:301
2252099139,3cyclictest30676-21grep19:25:140
2252099139,3cyclictest16258-21grep20:00:260
2252099139,2cyclictest9450-21head20:55:160
2252099139,2cyclictest15816-21grep23:05:150
22520991310,2cyclictest5590-21tr22:40:000
22520991310,2cyclictest29413-21grep22:15:160
22520991310,2cyclictest26299-21ls20:25:000
22520991310,2cyclictest2287-21grep21:40:140
22520991310,2cyclictest11821-21grep21:45:210
22520991310,2cyclictest10945-21sort21:25:290
2252099130,8cyclictest13207-21perf21:05:000
2252099130,13cyclictest0-21swapper/023:36:170
2252099130,13cyclictest0-21swapper/022:20:320
2253499129,2cyclictest721-21cut19:30:163
2253499129,2cyclictest5224-21sed22:00:273
2253499129,2cyclictest4020-21cron22:20:003
2253499129,2cyclictest2767-21chrt23:55:143
2253499129,2cyclictest2038-21grep21:40:133
2253499129,2cyclictest18502-21ls23:25:233
2253499129,2cyclictest1465-21sort21:20:193
2253499129,2cyclictest11211-21sed23:40:203
2253499129,2cyclictest10152-21df19:50:153
2253499127,4cyclictest55850irq/129-enp2s0-21:35:073
22534991211,1cyclictest22251-21ssh00:25:223
22534991211,1cyclictest0-21swapper/321:46:333
2253499120,8cyclictest1-21systemd21:25:383
2253099129,2cyclictest4960-21tr19:40:132
2253099129,2cyclictest4580-21munin-run19:40:002
2253099129,2cyclictest28420-21grep00:10:142
2253099129,2cyclictest26126-21sed19:15:162
2253099129,2cyclictest14783-21grep22:45:152
2253099129,2cyclictest11754-21chrt22:05:132
2253099128,3cyclictest2943-21cat20:40:282
2253099121,3cyclictest0-21swapper/219:20:132
22530991210,1cyclictest0-21swapper/200:20:172
2253099120,4cyclictest225-21systemd-journal23:47:552
2253099120,0cyclictest0-21swapper/220:07:122
2252499129,2cyclictest8426-21basename20:55:001
2252499129,2cyclictest23598-21grep19:10:151
2252499129,2cyclictest23430-21grep20:15:281
2252499129,2cyclictest17131-21tr20:05:141
2252499129,2cyclictest14752-21grep20:00:141
2252499129,2cyclictest10957-21wc21:00:011
2252499128,3cyclictest14320-21wc22:25:191
2252499121,8cyclictest4573-21sendmail19:40:001
2252499121,2cyclictest0-21swapper/121:12:281
2252499120,11cyclictest26666-21cron21:55:001
2252099129,2cyclictest8036-21grep19:45:180
2252099129,2cyclictest6944-21cut20:50:140
2252099129,2cyclictest6037-21tr19:40:190
2252099129,2cyclictest2952-21grep19:35:150
2252099129,2cyclictest23680-21grep22:50:170
2252099129,2cyclictest22891-21grep20:15:210
2252099129,2cyclictest11967-21cron00:20:000
2252099128,3cyclictest13555-21grep21:05:140
2252099125,4cyclictest20899-21apt-get00:25:140
2252099121,10cyclictest0-21swapper/023:59:510
2252099120,11cyclictest804-21tail19:30:170
2253499118,2cyclictest8427-21ssh22:40:413
2253499118,2cyclictest7522-21grep20:50:203
2253499118,2cyclictest5247-21ssh00:35:093
2253499118,2cyclictest4905-21cstates22:20:143
2253499118,2cyclictest4836-21cat19:40:103
2253499118,2cyclictest32333-21ssh23:15:053
2253499118,2cyclictest32249-21munin-plugin-st19:29:593
2253499118,2cyclictest30733-21sort22:35:173
2253499118,2cyclictest28663-21sh20:30:013
2253499118,2cyclictest27376-21chrt19:18:583
2253499118,2cyclictest2704-21cut19:35:143
2253499118,2cyclictest24562-21sed19:10:243
2253499118,2cyclictest22972-21ssh21:33:123
2253499118,2cyclictest22507-21grep20:15:183
2253499118,2cyclictest20285-21tr22:10:143
2253499118,2cyclictest20192-21tail20:10:203
2253499118,2cyclictest18666-21sed20:05:263
2253499118,2cyclictest16462-21egrep21:10:143
2253499118,2cyclictest15502-21ssh22:06:483
2253499118,2cyclictest13909-21ssh23:04:003
2253499118,2cyclictest13041-21ssh22:25:053
2253499118,2cyclictest12035-21sh00:00:193
2253499116,4cyclictest29870-21grep19:24:593
2253499110,10cyclictest25875-21sed20:20:303
2253099118,2cyclictest9391-21cron19:50:002
2253099118,2cyclictest659-21sh22:36:152
2253099118,2cyclictest30877-21sed19:25:162
2253099118,2cyclictest23218-21ssh22:11:152
2253099118,2cyclictest20069-21grep20:10:192
2253099118,2cyclictest19422-21ssh21:11:192
2253099118,2cyclictest17504-21ls23:25:152
2253099118,2cyclictest13515-21ssh21:46:172
2253099110,10cyclictest14477-21ssh00:01:322
2252499118,2cyclictest9862-21sort19:50:131
2252499118,2cyclictest9038-21chrt19:45:321
2252499118,2cyclictest31555-21ssh00:11:351
2252499118,2cyclictest30995-21if_err_enp0s31f22:35:171
2252499118,2cyclictest30613-21df_abs19:25:141
2252499118,2cyclictest30030-21date19:25:011
2252499118,2cyclictest29170-21tr20:30:151
2252499118,2cyclictest26397-21wc23:30:171
2252499118,2cyclictest25901-21sed20:20:301
2252499118,2cyclictest2193-21ssh23:15:311
2252499118,2cyclictest21089-21grep20:10:291
2252499118,2cyclictest17283-21ssh21:30:071
2252499118,2cyclictest1723-21ssh22:56:061
2252499118,2cyclictest12130-21expr22:05:171
2252499117,3cyclictest5078-21tr19:40:151
2252499117,3cyclictest11702-21sort21:00:171
2252499113,4cyclictest225-21systemd-journal19:19:591
2252499111,9cyclictest15572-21diskmemload23:50:091
2252499111,6cyclictest225-21systemd-journal20:40:001
2252499110,7cyclictest0-21swapper/123:05:131
2252099118,2cyclictest31735-21ssh00:30:440
2252099118,2cyclictest31443-21cut20:35:150
2252099118,2cyclictest30699-21ssh00:10:540
2252099118,2cyclictest29962-21cat20:30:200
2252099118,2cyclictest29537-21taskset19:20:560
2252099118,2cyclictest2173-21wc21:20:250
2252099118,2cyclictest19399-21memory23:45:190
2252099118,2cyclictest18503-21grep23:25:220
2252099118,2cyclictest10886-21ssh22:04:450
2252099117,2cyclictest9940-21tr19:50:130
2252099115,2cyclictest225-21systemd-journal19:55:020
22520991111,0cyclictest0-21swapper/000:03:010
2252099110,2cyclictest0-21swapper/022:10:180
2253499108,1cyclictest2384-21cat20:40:203
2253499108,1cyclictest12050-21cat21:00:203
2253499100,9cyclictest31308-21apache_processe20:35:133
2253099108,2cyclictest10535-21if_enp2s019:50:182
2253099108,1cyclictest16529-21chrt20:02:122
2253099108,1cyclictest110372sleep221:00:062
2253099107,2cyclictest24094-21ntpq19:10:192
2253099101,1cyclictest26561-21apache_volume20:25:132
2252099108,1cyclictest19506-21wget20:10:170
2252099108,1cyclictest17139-21aten2_r7power_v20:05:150
2252099107,2cyclictest6033-21cron20:50:000
2252099107,2cyclictest25550-21ls19:15:140
2252099107,2cyclictest24070-21grep19:10:190
225349997,1cyclictest15577-21uname20:00:193
225309997,1cyclictest28890-21seq20:30:032
225309997,1cyclictest14407-21wc21:05:192
225249997,1cyclictest5689-21chrt20:45:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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