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2026-06-30 - 14:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 100 highest latencies:
System rack0slot6s.osadl.org (updated Tue Jun 30, 2026 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
972959995729,0cyclictest0-21swapper/223:51:1212
972980995655,1cyclictest0-21swapper/921:20:2019
973000995513,42cyclictest0-21swapper/1521:16:227
972995995516,39cyclictest0-21swapper/1421:16:226
972980995453,1cyclictest0-21swapper/920:33:1019
973000995026,24cyclictest0-21swapper/1522:51:577
973005994948,1cyclictest1101846-40tracker-miner-f21:36:579
973000994948,1cyclictest1042107-40tracker-miner-f20:29:437
972992994916,7cyclictest1067770-40tracker-miner-f20:58:595
972959994931,17cyclictest1067860-40tracker-miner-f21:00:2112
972959994930,0cyclictest0-21swapper/200:35:5012
973000994847,1cyclictest0-21swapper/1521:00:337
972995994847,1cyclictest1183411-40tracker-miner-f23:15:146
972995994846,1cyclictest0-21swapper/1421:00:336
972976994820,4cyclictest3377077-21gnome-shell21:29:4718
97237524843,3sleep50-21swapper/519:08:3415
97237524843,3sleep50-21swapper/519:08:3415
973011994746,1cyclictest0-21swapper/1920:33:1011
97300299470,46cyclictest0-21swapper/1600:32:018
973005994644,1cyclictest0-21swapper/1723:48:169
973000994646,0cyclictest0-21swapper/1521:38:077
972980994645,1cyclictest1196215-40tracker-miner-f23:30:0919
972959994644,1cyclictest0-21swapper/223:48:1612
97295999460,45cyclictest0-21swapper/200:27:1712
973005994544,1cyclictest1226027-21ssh00:05:069
973005994544,0cyclictest0-21swapper/1723:11:439
973002994545,0cyclictest0-21swapper/1600:37:538
97299599459,36cyclictest0-21swapper/1420:59:436
972995994545,0cyclictest0-21swapper/1421:40:286
972995994545,0cyclictest0-21swapper/1421:38:076
972995994544,1cyclictest1225864-40tracker-miner-f00:01:456
972995994544,1cyclictest1114874-40tracker-miner-f21:54:196
97295999450,44cyclictest0-21swapper/223:11:4312
97295999450,0cyclictest0-21swapper/221:59:0712
973005994411,1cyclictest994693-40tracker-miner-f19:31:019
97300299440,1cyclictest1767-21NetworkManager22:03:018
973000994443,1cyclictest0-21swapper/1519:15:367
972995994444,0cyclictest0-21swapper/1422:28:476
972995994443,1cyclictest0-21swapper/1419:15:366
972980994441,2cyclictest0-21swapper/921:00:3319
97298099441,0cyclictest0-21swapper/920:26:1119
972976994444,0cyclictest0-21swapper/800:37:5218
97297499445,37cyclictest6798-21CPU17
972959994444,0cyclictest0-21swapper/223:09:1112
972959994442,1cyclictest0-21swapper/220:30:2812
972959994432,12cyclictest0-21swapper/200:08:0312
97210024437,4sleep40-21swapper/419:05:5314
97210024437,4sleep40-21swapper/419:05:5314
973005994343,0cyclictest0-21swapper/1723:09:119
973005994343,0cyclictest0-21swapper/1721:19:019
973005994342,1cyclictest6735-21qemu-system-x8620:44:479
973005994341,1cyclictest0-21swapper/1720:25:159
97300099438,34cyclictest3379382-21firefox20:50:317
973000994343,0cyclictest0-21swapper/1522:35:177
973000994342,1cyclictest976475-40tracker-miner-f19:10:277
973000994342,1cyclictest976475-40tracker-miner-f19:10:277
973000994342,1cyclictest0-21swapper/1500:01:437
972995994343,0cyclictest0-21swapper/1423:56:056
972995994343,0cyclictest0-21swapper/1420:38:516
972980994342,1cyclictest1234568-21ssh00:16:5319
972976994343,0cyclictest0-21swapper/800:32:0118
972976994342,1cyclictest1115819-40tracker-miner-f21:55:4518
972976994340,1cyclictest70850usb-storage00:07:0718
972959994331,0cyclictest0-21swapper/200:04:3512
972959994330,0cyclictest0-21swapper/221:32:0112
972959994329,0cyclictest0-21swapper/221:05:3412
97295999430,42cyclictest0-21swapper/221:20:3912
97295999430,0cyclictest0-21swapper/221:19:0112
97223124336,4sleep180-21swapper/1819:07:0710
97223124336,4sleep180-21swapper/1819:07:0710
97301199424,38cyclictest1971rcuc/1921:16:2211
97300899422,38cyclictest3377361-21thunderbird23:09:0510
973005994242,0cyclictest0-21swapper/1721:20:399
973005994241,1cyclictest3377122-21xdg-desktop-por20:08:049
973005994241,1cyclictest1043040-40tracker-miner-f20:30:289
973005994241,0cyclictest0-21swapper/1700:18:199
97300599420,42cyclictest0-21swapper/1720:12:199
97300099424,38cyclictest0-21swapper/1521:55:077
973000994242,0cyclictest0-21swapper/1523:09:067
973000994242,0cyclictest0-21swapper/1522:44:407
973000994242,0cyclictest0-21swapper/1522:20:557
973000994242,0cyclictest0-21swapper/1522:20:547
973000994242,0cyclictest0-21swapper/1522:02:427
973000994242,0cyclictest0-21swapper/1520:06:037
973000994241,1cyclictest0-21swapper/1500:27:507
973000994241,0cyclictest0-21swapper/1500:37:207
973000994210,0cyclictest0-21swapper/1523:16:457
972995994242,0cyclictest0-21swapper/1419:12:476
972995994242,0cyclictest0-21swapper/1419:12:476
972995994242,0cyclictest0-21swapper/1400:34:176
972995994242,0cyclictest0-21swapper/1400:22:156
972995994241,1cyclictest1080732-40tracker-miner-f21:14:096
97299599423,38cyclictest0-21swapper/1421:55:076
972992994233,8cyclictest0-21swapper/1323:10:515
972992994232,9cyclictest3377361-21thunderbird00:25:225
972992994232,9cyclictest0-21swapper/1319:46:595
972992994232,8cyclictest0-21swapper/1323:00:005
97299299420,41cyclictest1161973-40tracker-miner-f22:50:065
97299299420,33cyclictest0-21swapper/1319:12:035
97299299420,33cyclictest0-21swapper/1319:12:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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