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2025-06-09 - 16:43
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Mon Jun 09, 2025 12:47:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
9190029913169,45cyclictest0-21swapper/009:50:380
91900699121108,7cyclictest924665-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		07:30:311
91900699121108,7cyclictest924665-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		07:30:311
919002991212,105cyclictest941033-21latency_hist08:05:030
919002991212,105cyclictest941033-21latency_hist08:05:030
9190029911911,96cyclictest0-21swapper/008:10:010
9190029911853,51cyclictest1096346-21if_eth011:10:260
91901599116105,5cyclictest937984-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		08:15:373
919002991131,94cyclictest0-21swapper/008:30:290
9190029911281,13cyclictest64450irq/529-eth0-Tx08:20:370
9190029911281,13cyclictest64450irq/529-eth0-Tx08:20:370
9190029911265,23cyclictest966693-21diskmemload12:05:020
919002991121,88cyclictest0-21swapper/008:45:300
91902199111106,2cyclictest0-21swapper/412:21:264
91902199111106,2cyclictest0-21swapper/412:21:264
9190119911096,7cyclictest1180676-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		12:36:302
9190029910947,46cyclictest0-21swapper/012:17:390
919002991092,82cyclictest0-21swapper/009:10:400
919002991092,82cyclictest0-21swapper/009:10:390
919002991081,86cyclictest1188408-21/usr/sbin/munin12:20:230
919002991081,86cyclictest1188408-21/usr/sbin/munin12:20:220
9190029910568,22cyclictest64350irq/528-eth0-Tx11:29:490
9190029910568,22cyclictest64350irq/528-eth0-Tx11:29:490
9190119910389,7cyclictest1136984-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		11:46:222
9190119910389,7cyclictest1136984-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		11:46:212
9190029910250,28cyclictest1174270-1kworker/0:2H+kblockd@
blk_mq_run_work_fn		12:25:090
9190029910250,28cyclictest1174270-1kworker/0:2H+kblockd@
blk_mq_run_work_fn		12:25:080
919002991022,84cyclictest1002807-21sort09:45:130
9190029910163,26cyclictest1121291-21ssh11:30:190
9190029910163,26cyclictest1121291-21ssh11:30:180
919002991011,90cyclictest0-21swapper/007:15:370
9190029910071,16cyclictest64450irq/529-eth0-Tx11:48:590
9190029910071,16cyclictest64450irq/529-eth0-Tx11:48:580
919002999972,12cyclictest0-21swapper/007:10:310
919002999972,12cyclictest0-21swapper/007:10:310
919002999965,24cyclictest15-21rcuc/009:15:430
919002999965,24cyclictest15-21rcuc/009:15:430
919002999954,30cyclictest1165-21runrttasks08:52:550
919002999954,30cyclictest1165-21runrttasks08:52:550
91900299991,85cyclictest0-21swapper/011:51:270
91900299991,85cyclictest0-21swapper/011:51:260
91900299982,83cyclictest0-21swapper/010:20:280
91900299982,83cyclictest0-21swapper/010:20:280
91900299982,80cyclictest0-21swapper/008:10:250
91900299982,58cyclictest1179366-21ssh12:13:470
91900299982,58cyclictest1179366-21ssh12:13:470
91900299981,85cyclictest0-21swapper/007:22:550
91900299981,85cyclictest0-21swapper/007:22:550
91900299973,81cyclictest0-21swapper/011:00:300
91900299972,83cyclictest1047603-21ntp_kernel_pll_10:25:360
91900299972,83cyclictest1047603-21ntp_kernel_pll_10:25:360
919002999666,18cyclictest64250irq/527-eth0-Tx12:05:170
919002999665,21cyclictest64250irq/527-eth0-Tx09:40:210
919002999663,23cyclictest64250irq/527-eth0-Tx12:35:050
919002999660,26cyclictest929870-21ntpq07:35:290
919002999660,26cyclictest929870-21ntpq07:35:290
919002999644,31cyclictest0-21swapper/010:40:410
919002999644,31cyclictest0-21swapper/010:40:400
919002999640,16cyclictest1207035-21ssh12:34:470
91900299962,81cyclictest0-21swapper/007:25:490
91900299962,81cyclictest0-21swapper/007:25:490
919002999553,25cyclictest0-21swapper/010:50:180
91900299951,89cyclictest1140938-21latency_hist11:45:030
91900299951,89cyclictest1140938-21latency_hist11:45:030
91900299951,3cyclictest0-21swapper/007:40:270
919002999462,21cyclictest64250irq/527-eth0-Tx10:12:370
919002999462,21cyclictest64250irq/527-eth0-Tx10:12:360
919002999460,22cyclictest64350irq/528-eth0-Tx07:45:330
919002999451,29cyclictest0-21swapper/008:35:390
919002999449,28cyclictest0-21swapper/010:36:580
91900299942,6cyclictest1014943-21grep09:55:520
91900299941,80cyclictest0-21swapper/009:27:590
91900299941,80cyclictest0-21swapper/009:02:150
91900299941,79cyclictest0-21swapper/007:55:310
919002999346,30cyclictest0-21swapper/008:25:330
919002999261,21cyclictest64250irq/527-eth0-Tx10:07:120
919002999237,46cyclictest0-21swapper/011:56:390
91900299921,86cyclictest0-21swapper/008:15:130
919006999177,7cyclictest945963-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		08:40:481
919006999177,7cyclictest945963-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		08:40:481
919002999161,21cyclictest0-21swapper/007:30:290
919002999161,21cyclictest0-21swapper/007:30:290
919002999161,20cyclictest64350irq/528-eth0-Tx10:15:320
919002999161,20cyclictest64350irq/528-eth0-Tx10:15:320
919002999155,24cyclictest0-21swapper/010:00:160
919002999155,24cyclictest0-21swapper/010:00:160
919002999152,27cyclictest0-21swapper/009:23:360
919002999152,27cyclictest0-21swapper/009:23:350
919002999147,28cyclictest0-21swapper/011:06:330
91900299911,84cyclictest0-21swapper/009:30:340
919002999059,22cyclictest64350irq/528-eth0-Tx10:30:370
919002999044,27cyclictest0-21swapper/009:35:250
919002999030,51cyclictest64350irq/528-eth0-Tx11:18:500
919006998976,6cyclictest1087156-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:11:141
919002998845,24cyclictest0-21swapper/008:40:400
919002998845,24cyclictest0-21swapper/008:40:390
919002998839,17cyclictest1133071-21ssh11:39:050
919002998835,15cyclictest966693-21diskmemload10:45:390
919002998835,15cyclictest966693-21diskmemload10:45:380
919006998774,6cyclictest977478-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		09:56:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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