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2025-05-05 - 00:54

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 792 highest latencies:
System rack3slot5s.osadl.org (updated Sun May 04, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
445621380sleep0121750irq/30-eth0_g0_09:58:420
121620ksoftirqd/1121650irq/29-eth0_g0_10:23:401
121650600irq/29-eth0_g0_2769399cyclictest08:49:540
121750560irq/30-eth0_g0_2769399cyclictest10:44:460
121650560irq/29-eth0_g0_2769399cyclictest11:26:100
121650560irq/29-eth0_g0_2769399cyclictest10:19:500
121650540irq/29-eth0_g0_2769399cyclictest10:04:530
289282530sleep1121650irq/29-eth0_g0_11:38:171
121650520irq/29-eth0_g0_2769399cyclictest12:31:300
121650520irq/29-eth0_g0_2769399cyclictest08:34:330
121520ksoftirqd/1121750irq/30-eth0_g0_10:30:321
121650510irq/29-eth0_g0_2769399cyclictest08:14:530
121510ksoftirqd/1121750irq/30-eth0_g0_10:53:121
29622500sleep0121650irq/29-eth0_g0_09:50:330
121650500irq/29-eth0_g0_2769399cyclictest10:34:540
121650500irq/29-eth0_g0_2769399cyclictest08:54:510
121650500irq/29-eth0_g0_2769399cyclictest07:44:570
79742490sleep1121650irq/29-eth0_g0_10:11:511
121650490irq/29-eth0_g0_2769399cyclictest10:41:270
121650490irq/29-eth0_g0_2769399cyclictest09:19:520
121490ksoftirqd/1121750irq/30-eth0_g0_11:41:121
121650480irq/29-eth0_g0_2769399cyclictest10:29:490
121650480irq/29-eth0_g0_2769399cyclictest09:18:460
121650470irq/29-eth0_g0_2769399cyclictest09:10:510
121650470irq/29-eth0_g0_2769399cyclictest09:10:510
121650470irq/29-eth0_g0_2769399cyclictest09:04:520
121650470irq/29-eth0_g0_2769399cyclictest07:59:510
121470ksoftirqd/1121750irq/30-eth0_g0_11:11:551
121470ksoftirqd/1121750irq/30-eth0_g0_10:02:271
277732460sleep1121650irq/29-eth0_g0_09:19:551
121650460irq/29-eth0_g0_2769399cyclictest12:10:330
121650460irq/29-eth0_g0_2769399cyclictest11:20:410
121460ksoftirqd/1121750irq/30-eth0_g0_10:08:471
121750450irq/30-eth0_g0_1219-21kworker/1:210:41:281
121650450irq/29-eth0_g0_2769399cyclictest11:16:090
121650450irq/29-eth0_g0_2769399cyclictest10:18:290
121650450irq/29-eth0_g0_2769399cyclictest07:34:490
121650440irq/29-eth0_g0_2769399cyclictest10:28:130
121650440irq/29-eth0_g0_2769399cyclictest10:10:310
121650440irq/29-eth0_g0_26850-21/usr/sbin/munin07:04:520
12132440chrt121650irq/29-eth0_g0_11:56:151
121440ksoftirqd/1121750irq/30-eth0_g0_09:26:451
121750430irq/30-eth0_g0_1219-21kworker/1:212:23:211
121430ksoftirqd/1121650irq/29-eth0_g0_08:12:341
121750420irq/30-eth0_g0_1219-21kworker/1:212:11:401
121650420irq/29-eth0_g0_2769399cyclictest11:04:560
121420ksoftirqd/1121750irq/30-eth0_g0_11:56:480
121420ksoftirqd/1121750irq/30-eth0_g0_09:41:291
121420ksoftirqd/1121650irq/29-eth0_g0_09:53:161
121420ksoftirqd/1121650irq/29-eth0_g0_08:08:491
121750410irq/30-eth0_g0_2769399cyclictest09:38:440
121750410irq/30-eth0_g0_1219-21kworker/1:212:27:011
121750410irq/30-eth0_g0_1219-21kworker/1:210:35:361
121750410irq/30-eth0_g0_1219-21kworker/1:209:57:251
121750410irq/30-eth0_g0_1219-21kworker/1:209:10:281
121750410irq/30-eth0_g0_1219-21kworker/1:209:10:281
121650410irq/29-eth0_g0_2769399cyclictest11:53:560
121650410irq/29-eth0_g0_2769399cyclictest11:46:190
121650410irq/29-eth0_g0_2769399cyclictest11:12:560
121410ksoftirqd/1121650irq/29-eth0_g0_11:08:191
121410ksoftirqd/1121650irq/29-eth0_g0_09:14:561
121410ksoftirqd/1121650irq/29-eth0_g0_07:26:321
121750400irq/30-eth0_g0_2769399cyclictest09:26:500
121750400irq/30-eth0_g0_1219-21kworker/1:212:06:221
121750400irq/30-eth0_g0_1219-21kworker/1:211:15:351
121650400irq/29-eth0_g0_2769399cyclictest12:22:490
121400ksoftirqd/1121650irq/29-eth0_g0_11:23:091
121400ksoftirqd/1121650irq/29-eth0_g0_07:46:501
121750390irq/30-eth0_g0_2769399cyclictest12:02:180
121750390irq/30-eth0_g0_26787-21iostat07:04:511
121750390irq/30-eth0_g0_1219-21kworker/1:211:00:241
121750390irq/30-eth0_g0_1219-21kworker/1:211:00:241
121650390irq/29-eth0_g0_2769399cyclictest09:47:330
121390ksoftirqd/1121650irq/29-eth0_g0_12:04:301
121390ksoftirqd/1121650irq/29-eth0_g0_09:03:211
121390ksoftirqd/1121650irq/29-eth0_g0_07:50:231
121390ksoftirqd/1121650irq/29-eth0_g0_07:22:111
121750380irq/30-eth0_g0_1893-21runrttasks09:08:031
121750380irq/30-eth0_g0_1219-21kworker/1:211:26:041
121380ksoftirqd/1121650irq/29-eth0_g0_12:15:551
121380ksoftirqd/1121650irq/29-eth0_g0_11:52:261
121380ksoftirqd/1121650irq/29-eth0_g0_10:48:221
121380ksoftirqd/1121650irq/29-eth0_g0_09:30:221
121380ksoftirqd/1121650irq/29-eth0_g0_08:51:421
121380ksoftirqd/1121650irq/29-eth0_g0_08:36:221
121380ksoftirqd/1121650irq/29-eth0_g0_08:14:531
121380ksoftirqd/1121650irq/29-eth0_g0_07:42:151
121380ksoftirqd/1121650irq/29-eth0_g0_07:15:021
121750370irq/30-eth0_g0_1893-21runrttasks09:47:301
121750370irq/30-eth0_g0_1219-21kworker/1:212:34:121
121750370irq/30-eth0_g0_1219-21kworker/1:211:33:291
121750370irq/30-eth0_g0_10839-21unixbench_multi12:34:541
121650370irq/29-eth0_g0_2769399cyclictest11:31:280
121650370irq/29-eth0_g0_2769399cyclictest11:00:350
121650370irq/29-eth0_g0_2769399cyclictest11:00:350
121370ksoftirqd/1121650irq/29-eth0_g0_07:13:521
121370ksoftirqd/1121650irq/29-eth0_g0_07:13:521
121750360irq/30-eth0_g0_1219-21kworker/1:211:45:221
121750360irq/30-eth0_g0_1219-21kworker/1:209:35:101
121650360irq/29-eth0_g0_2769399cyclictest10:54:390
121750350irq/30-eth0_g0_2769399cyclictest11:34:440
121750350irq/30-eth0_g0_1893-21runrttasks10:58:051
121750350irq/30-eth0_g0_1219-21kworker/1:210:16:301
121650350irq/29-eth0_g0_2769399cyclictest09:39:590
121350ksoftirqd/1121750irq/30-eth0_g0_12:08:000
121750340irq/30-eth0_g0_1893-21runrttasks08:55:331
121750340irq/30-eth0_g0_1219-21kworker/1:210:28:241
121340ksoftirqd/1121650irq/29-eth0_g0_07:59:231
27695993328cyclictest15618-21unixbench_multi08:29:541
121750330irq/30-eth0_g0_2769399cyclictest07:54:460
121750330irq/30-eth0_g0_13170-21grep08:20:081
121650330irq/29-eth0_g0_2769399cyclictest10:52:170
121650330irq/29-eth0_g0_2769399cyclictest10:00:540
121650330irq/29-eth0_g0_2769399cyclictest07:19:480
305272320sleep0121650irq/29-eth0_g0_09:31:080
2769399328cyclictest121650irq/29-eth0_g0_07:09:550
2769399328cyclictest121650irq/29-eth0_g0_07:09:550
2769399328cyclictest10781-21unixbench_singl08:09:550
121750320irq/30-eth0_g0_18027-21cat08:39:541
121750320irq/30-eth0_g0_0-21swapper/108:03:161
121750320irq/30-eth0_g0_0-21swapper/107:37:531
2769399316cyclictest9316-21proc_pri08:04:520
121750310irq/30-eth0_g0_2053-21lldpd08:25:421
121650310irq/29-eth0_g0_2769399cyclictest08:59:500
27693993015cyclictest27691-21cyclictest08:27:340
121750300irq/30-eth0_g0_880-21unixbench_multi07:29:551
121650300irq/29-eth0_g0_19279-21grep08:44:551
2769399297cyclictest10459-21latency12:34:480
27693992912cyclictest121650irq/29-eth0_g0_07:49:540
27693992910cyclictest0-21swapper/011:44:150
121650290irq/29-eth0_g0_2769399cyclictest08:20:070
2769399288cyclictest1893-21runrttasks08:46:360
2769399287cyclictest121650irq/29-eth0_g0_07:24:560
27693992814cyclictest27691-21cyclictest08:30:520
27693992810cyclictest121650irq/29-eth0_g0_12:14:440
121650280irq/29-eth0_g0_2769399cyclictest07:39:510
2769399277cyclictest121650irq/29-eth0_g0_08:39:490
2769399274cyclictest0-21swapper/012:26:210
27693992610cyclictest29921-21seq07:16:580
27693992610cyclictest0-21swapper/007:31:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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