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2025-12-03 - 14:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #5

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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  Eltec
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot5s.osadl.org (updated Wed Dec 03, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1962521570sleep13044950irq/29-eth0_g0_10:34:461
2632721550sleep03044950irq/29-eth0_g0_09:31:210
1491521480sleep13044950irq/29-eth0_g0_11:40:241
316782950sleep03045050irq/30-eth0_g0_11:03:480
50282840sleep13044950irq/29-eth0_g0_12:35:091
178192830sleep13045050irq/30-eth0_g0_09:10:201
46552810sleep03045050irq/30-eth0_g0_12:35:010
81292780sleep03045050irq/30-eth0_g0_11:24:590
203852770sleep03045050irq/30-eth0_g0_07:59:460
198682740sleep03045050irq/30-eth0_g0_11:53:400
29122710sleep03045050irq/30-eth0_g0_11:11:520
154182710chrt3045050irq/30-eth0_g0_10:24:451
225752680sleep03044950irq/29-eth0_g0_11:59:590
149552670sleep03044950irq/29-eth0_g0_09:04:560
210842660sleep13044950irq/29-eth0_g0_08:00:111
167842640sleep03045050irq/30-eth0_g0_10:27:020
118762620sleep03044950irq/29-eth0_g0_11:34:420
49072600sleep03044950irq/29-eth0_g0_11:16:370
258392600sleep03044950irq/29-eth0_g0_10:49:520
324282580sleep13044950irq/29-eth0_g0_09:45:591
281582540sleep13044950irq/29-eth0_g0_10:54:591
273902540chrt3045050irq/30-eth0_g0_09:34:591
19912540sleep03045050irq/30-eth0_g0_12:29:040
259452530sleep03045050irq/30-eth0_g0_12:08:140
3215799512cyclictest14861-21runrttasks11:40:110
3044950510irq/29-eth0_g0_3215799cyclictest09:10:080
3044950510irq/29-eth0_g0_3215799cyclictest08:00:120
3044950500irq/29-eth0_g0_3215799cyclictest12:30:040
3044950500irq/29-eth0_g0_3215799cyclictest10:05:060
3044950500irq/29-eth0_g0_3215799cyclictest10:05:060
324252490sleep03044950irq/29-eth0_g0_09:45:580
3215799493cyclictest10012-21unixbench_multi10:10:080
3045050490irq/30-eth0_g0_3215799cyclictest11:36:390
3045050490irq/30-eth0_g0_3215799cyclictest11:36:390
3044950490irq/29-eth0_g0_3215799cyclictest08:59:460
3044950490irq/29-eth0_g0_3215799cyclictest08:59:460
3044950490irq/29-eth0_g0_3215799cyclictest07:30:090
303942490sleep13045050irq/30-eth0_g0_09:41:081
3215799481cyclictest206601/usr/sbin/munin11:55:020
3045050480irq/30-eth0_g0_3215799cyclictest09:25:020
287042480sleep03045050irq/30-eth0_g0_09:37:360
3215799472cyclictest290092chrt08:20:020
121470ksoftirqd/13044950irq/29-eth0_g0_10:40:431
121470ksoftirqd/13044950irq/29-eth0_g0_09:23:241
32157994624cyclictest56992sleep010:00:070
3215799462cyclictest4546-21chrt07:20:060
3215799461cyclictest3052sleep008:29:450
3215799461cyclictest2566-21runrttasks08:42:460
3215799461cyclictest20060-21/usr/sbin/munin10:35:020
3215799461cyclictest10453-21latency07:35:030
3215799451cyclictest3336-21chrt09:55:000
3215799451cyclictest270931ntpdc08:15:020
3215799451cyclictest196532sleep009:15:070
3044950450irq/29-eth0_g0_3216099cyclictest09:54:451
3044950450irq/29-eth0_g0_3215799cyclictest09:19:580
32157994422cyclictest137682sleep010:20:000
32157994421cyclictest0-21swapper/011:20:120
3215799441cyclictest32530-21runrttasks12:24:450
3215799441cyclictest26740-21latency12:10:020
3045050440irq/30-eth0_g0_31ksoftirqd/007:05:030
3044950440irq/29-eth0_g0_3216099cyclictest12:25:121
128082440sleep13045050irq/30-eth0_g0_10:17:371
11722440sleep03044950irq/29-eth0_g0_11:08:170
32157994322cyclictest2989-21open_files08:35:030
3215799432cyclictest181992sleep010:30:090
3215799432cyclictest13471-21swap09:00:060
3215799432cyclictest0-21swapper/011:45:040
3215799431cyclictest516-21grep07:10:080
3215799431cyclictest245771chrt10:45:120
3215799431cyclictest22414-21chrt10:40:100
3215799431cyclictest16383-21chrt07:49:560
3215799431cyclictest162072sleep007:49:340
3215799431cyclictest11721-21missed_timers10:15:000
32157994220cyclictest0-21swapper/008:45:030
3215799422cyclictest1138-21df09:49:570
3215799421cyclictest313311latency_hist09:44:450
3215799421cyclictest24689-21chrt08:09:570
3215799421cyclictest245121/usr/sbin/munin08:09:460
3044950420irq/29-eth0_g0_3216099cyclictest11:59:391
28352420sleep13045050irq/30-eth0_g0_11:11:341
32157994121cyclictest32154-21cyclictest12:18:020
32157994119cyclictest1932-21runrttasks07:14:470
32157994118cyclictest0-21swapper/008:31:030
3215799411cyclictest9840-21runrttasks08:51:260
3215799411cyclictest6397-21missed_timers07:25:020
3044950410irq/29-eth0_g0_3216099cyclictest10:26:061
3215799402cyclictest12468-21taskset07:39:590
3215799401cyclictest28516-21seq10:55:070
3044950400irq/29-eth0_g0_3216099cyclictest12:14:451
3044950400irq/29-eth0_g0_3216099cyclictest11:20:221
3044950400irq/29-eth0_g0_32153-21munin-run07:09:461
199052400sleep13044950irq/29-eth0_g0_09:15:261
108182390sleep13045050irq/30-eth0_g0_10:12:541
3044950380irq/29-eth0_g0_2566-21runrttasks12:30:061
3216099378cyclictest14722sleep107:13:341
3216099372cyclictest244812sleep109:27:121
3044950370irq/29-eth0_g0_11-21kworker/1:012:00:381
3044950370irq/29-eth0_g0_11-21kworker/1:011:52:461
3044950370irq/29-eth0_g0_11-21kworker/1:011:34:101
3044950370irq/29-eth0_g0_0-21swapper/111:45:071
3044950370irq/29-eth0_g0_0-21swapper/109:32:121
3044950360irq/29-eth0_g0_1932-21runrttasks08:16:571
3044950360irq/29-eth0_g0_11-21kworker/1:009:57:171
3216099357cyclictest0-21swapper/111:27:221
3044950350irq/29-eth0_g0_3216099cyclictest07:45:061
3044950350irq/29-eth0_g0_0-21swapper/112:15:101
3044950350irq/29-eth0_g0_0-21swapper/111:05:381
3044950350irq/29-eth0_g0_0-21swapper/110:51:301
3216099346cyclictest0-21swapper/107:59:031
3044950340irq/29-eth0_g0_3216099cyclictest11:15:031
3044950340irq/29-eth0_g0_2175-21runrttasks08:59:141
3044950340irq/29-eth0_g0_2175-21runrttasks08:59:141
3044950340irq/29-eth0_g0_1932-21runrttasks12:23:541
3044950340irq/29-eth0_g0_11-21kworker/1:010:09:291
3044950340irq/29-eth0_g0_11-21kworker/1:010:09:291
3045050330irq/30-eth0_g0_2175-21runrttasks08:43:371
3044950330irq/29-eth0_g0_2566-21runrttasks11:35:591
3044950330irq/29-eth0_g0_2566-21runrttasks11:35:591
3044950330irq/29-eth0_g0_24180-21/usr/sbin/munin10:45:021
3044950330irq/29-eth0_g0_0-21swapper/109:59:571
259972330sleep13044950irq/29-eth0_g0_12:08:261
3216099326cyclictest117450irq/72-mmc008:04:501
3216099321cyclictest83712sleep107:30:011
3216099321cyclictest11652sleep108:30:101
3044950320irq/29-eth0_g0_28889-21df_abs08:19:591
3044950320irq/29-eth0_g0_0-21swapper/111:01:161
3216099311cyclictest247912sleep108:09:581
3044950310irq/29-eth0_g0_7011-21cat08:45:011
3044950310irq/29-eth0_g0_31557-21grep08:25:081
3044950310irq/29-eth0_g0_1932-21runrttasks10:32:161
3216099301cyclictest167692sleep107:50:021
3216099301cyclictest149292sleep109:04:561
3216099301cyclictest106882sleep108:54:461
3044950300irq/29-eth0_g0_6215-21df_abs07:24:591
3044950300irq/29-eth0_g0_3216099cyclictest09:01:541
3044950300irq/29-eth0_g0_3216099cyclictest07:35:021
3044950300irq/29-eth0_g0_3049-21processes08:35:051
3044950300irq/29-eth0_g0_2455-21lldpd07:19:361
3044950300irq/29-eth0_g0_12498-21irqstats07:40:001
3044950290irq/29-eth0_g0_4658-21grep07:20:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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