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2025-12-04 - 03:51

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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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 Thu Dec 04, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3064921550sleep13044950irq/29-eth0_g0_21:32:371
1211520ksoftirqd/1382899cyclictest23:48:471
1211520ksoftirqd/1382899cyclictest23:48:471
137021140sleep03044950irq/29-eth0_g0_00:17:410
137021140sleep03044950irq/29-eth0_g0_00:17:410
121910ksoftirqd/13045050irq/30-eth0_g0_21:28:571
121910ksoftirqd/13045050irq/30-eth0_g0_21:20:001
121890ksoftirqd/1239942chrt23:54:360
121870ksoftirqd/13045050irq/30-eth0_g0_23:25:511
121830ksoftirqd/13044950irq/29-eth0_g0_23:40:090
12742790sleep13045050irq/30-eth0_g0_00:17:181
12742790sleep13045050irq/30-eth0_g0_00:17:181
254782780sleep13045050irq/30-eth0_g0_22:39:271
105852770sleep13045050irq/30-eth0_g0_22:02:331
228012760sleep13045050irq/30-eth0_g0_23:50:071
195342760sleep13045050irq/30-eth0_g0_21:05:061
46172750sleep13045050irq/30-eth0_g0_19:10:061
224822740sleep13045050irq/30-eth0_g0_21:12:541
119212740sleep13044950irq/29-eth0_g0_20:46:521
121730ksoftirqd/1228032sleep021:14:110
79002720sleep13045050irq/30-eth0_g0_19:19:311
32382720sleep13045050irq/30-eth0_g0_19:07:271
157792720sleep13045050irq/30-eth0_g0_19:38:031
86442710sleep13045050irq/30-eth0_g0_21:58:021
145662700sleep13045050irq/30-eth0_g0_22:12:011
129882700sleep13045050irq/30-eth0_g0_20:49:591
94742680sleep13044950irq/29-eth0_g0_19:22:351
121680ksoftirqd/178652chrt19:19:220
121680ksoftirqd/13045050irq/30-eth0_g0_00:39:110
287732660sleep03045050irq/30-eth0_g0_00:05:070
97102650sleep13044950irq/29-eth0_g0_00:37:591
269282650chrt3045050irq/30-eth0_g0_20:05:021
244992640sleep03044950irq/29-eth0_g0_22:35:350
302092620sleep13045050irq/30-eth0_g0_00:09:441
263902620sleep13045050irq/30-eth0_g0_20:04:171
262772620sleep13045050irq/30-eth0_g0_23:59:571
121610ksoftirqd/13045050irq/30-eth0_g0_22:40:051
121610ksoftirqd/13045050irq/30-eth0_g0_21:47:530
121610ksoftirqd/13045050irq/30-eth0_g0_21:47:530
322412600sleep13045050irq/30-eth0_g0_21:35:471
269452600sleep03044950irq/29-eth0_g0_21:24:160
80722590sleep03044950irq/29-eth0_g0_00:34:380
121590ksoftirqd/13045050irq/30-eth0_g0_23:05:061
19202570chrt3045050irq/30-eth0_g0_21:40:581
113992570sleep13045050irq/30-eth0_g0_23:23:371
113992570sleep13045050irq/30-eth0_g0_23:23:371
156112560sleep13045050irq/30-eth0_g0_23:34:011
51872540chrt3045050irq/30-eth0_g0_19:11:580
121520ksoftirqd/13045050irq/30-eth0_g0_21:37:070
91822500sleep13045050irq/30-eth0_g0_23:17:591
3044950490irq/29-eth0_g0_28003-21seq22:44:581
281462490sleep03045050irq/30-eth0_g0_21:25:520
271222490sleep03044950irq/29-eth0_g0_22:42:490
138852490sleep03045050irq/30-eth0_g0_22:10:070
40132480sleep13045050irq/30-eth0_g0_21:46:011
40132480sleep13045050irq/30-eth0_g0_21:46:011
217182480sleep13045050irq/30-eth0_g0_22:29:571
125112480sleep03044950irq/29-eth0_g0_22:07:020
121480ksoftirqd/13045050irq/30-eth0_g0_23:35:270
121480ksoftirqd/13045050irq/30-eth0_g0_22:16:321
121480ksoftirqd/13045050irq/30-eth0_g0_22:16:321
121480ksoftirqd/13044950irq/29-eth0_g0_00:21:121
3045050470irq/30-eth0_g0_11147-21chrt23:22:370
3045050470irq/30-eth0_g0_11147-21chrt23:22:370
121470ksoftirqd/13045050irq/30-eth0_g0_23:57:061
95152460sleep03045050irq/30-eth0_g0_19:22:440
3044950460irq/29-eth0_g0_31ksoftirqd/021:54:550
3044950460irq/29-eth0_g0_15855-21runrttasks22:15:070
3044950460irq/29-eth0_g0_15855-21runrttasks22:15:070
228682460sleep03044950irq/29-eth0_g0_22:32:160
121460ksoftirqd/13045050irq/30-eth0_g0_19:55:081
121460ksoftirqd/13045050irq/30-eth0_g0_19:28:070
121460ksoftirqd/13044950irq/29-eth0_g0_20:43:441
121460ksoftirqd/13044950irq/29-eth0_g0_20:20:061
121460ksoftirqd/13044950irq/29-eth0_g0_19:50:061
121460ksoftirqd/13044950irq/29-eth0_g0_19:50:061
121450ksoftirqd/13045050irq/30-eth0_g0_23:48:200
121450ksoftirqd/13045050irq/30-eth0_g0_23:48:200
121450ksoftirqd/13045050irq/30-eth0_g0_22:26:501
121450ksoftirqd/13044950irq/29-eth0_g0_23:02:351
121450ksoftirqd/1187132sleep123:40:101
3045050440irq/30-eth0_g0_31ksoftirqd/000:02:300
3045050440irq/30-eth0_g0_13-21kworker/0:121:59:550
3044950440irq/29-eth0_g0_11-21kworker/1:021:54:041
22342440sleep03045050irq/30-eth0_g0_21:42:100
121440ksoftirqd/13044950irq/29-eth0_g0_22:07:221
3045050430irq/30-eth0_g0_1932-21runrttasks23:26:160
3045050430irq/30-eth0_g0_13-21kworker/0:123:31:450
3045050430irq/30-eth0_g0_13-21kworker/0:123:05:050
3045050430irq/30-eth0_g0_13-21kworker/0:122:50:180
3044950430irq/29-eth0_g0_2175-21runrttasks19:09:010
304442430chrt3044950irq/29-eth0_g0_21:31:480
174062430sleep13044950irq/29-eth0_g0_22:19:481
121430ksoftirqd/13044950irq/29-eth0_g0_20:25:561
3044950420irq/29-eth0_g0_29963-21entropy22:49:571
3044950420irq/29-eth0_g0_121ksoftirqd/123:36:531
121420ksoftirqd/13045050irq/30-eth0_g0_23:14:150
121420ksoftirqd/13045050irq/30-eth0_g0_22:46:090
121420ksoftirqd/13045050irq/30-eth0_g0_21:00:010
121420ksoftirqd/13044950irq/29-eth0_g0_21:02:461
121420ksoftirqd/13044950irq/29-eth0_g0_19:24:551
3045050410irq/30-eth0_g0_13-21kworker/0:121:50:050
3045050410irq/30-eth0_g0_13-21kworker/0:100:12:200
3045050410irq/30-eth0_g0_10893-21if_err_eth020:44:570
3044950410irq/29-eth0_g0_312152sleep100:10:351
3044950410irq/29-eth0_g0_11-21kworker/1:000:33:241
121410ksoftirqd/13045050irq/30-eth0_g0_20:34:250
3045050400irq/30-eth0_g0_5447-21seq00:27:230
3045050400irq/30-eth0_g0_13-21kworker/0:123:56:030
3045050400irq/30-eth0_g0_13-21kworker/0:123:01:580
3045050400irq/30-eth0_g0_13-21kworker/0:122:56:300
3045050400irq/30-eth0_g0_13-21kworker/0:122:23:010
3045050400irq/30-eth0_g0_13-21kworker/0:121:15:050
121400ksoftirqd/13044950irq/29-eth0_g0_20:12:551
3045050390irq/30-eth0_g0_4440-21chrt20:29:440
3045050390irq/30-eth0_g0_29378-21taskset20:10:060
3045050390irq/30-eth0_g0_20063-21find22:25:060
3045050390irq/30-eth0_g0_14887-21sort19:35:060
3045050390irq/30-eth0_g0_13-21kworker/0:123:17:130
3045050390irq/30-eth0_g0_13-21kworker/0:100:22:170
3044950390irq/29-eth0_g0_17042-21sed19:40:061
202242390sleep03044950irq/29-eth0_g0_19:49:200
121390ksoftirqd/13045050irq/30-eth0_g0_20:36:341
121390ksoftirqd/13044950irq/29-eth0_g0_19:33:241
3045050380irq/30-eth0_g0_24734-21df_inode19:59:570
3044950380irq/29-eth0_g0_31012-21latency20:14:581
3044950380irq/29-eth0_g0_11-21kworker/1:021:17:001
121380ksoftirqd/13044950irq/29-eth0_g0_23:09:501
121380ksoftirqd/13044950irq/29-eth0_g0_22:57:151
121380ksoftirqd/13044950irq/29-eth0_g0_00:25:011
3045050370irq/30-eth0_g0_31318-21find20:15:040
3045050370irq/30-eth0_g0_12994-21taskset20:49:590
3044950370irq/29-eth0_g0_6340-21taskset20:34:131
3044950370irq/29-eth0_g0_1932-21runrttasks19:51:570
3044950370irq/29-eth0_g0_1932-21runrttasks19:51:570
3044950370irq/29-eth0_g0_0-21swapper/119:44:551
3045050360irq/30-eth0_g0_9078-21ntpq20:40:030
3045050360irq/30-eth0_g0_7697-21chrt20:36:260
3045050360irq/30-eth0_g0_382799cyclictest20:05:070
3045050360irq/30-eth0_g0_20886-21sh21:09:440
3045050350irq/30-eth0_g0_2566-21runrttasks19:33:480
3044950350irq/29-eth0_g0_14834-21/usr/sbin/munin20:55:010
3045050340irq/30-eth0_g0_2175-21runrttasks19:41:500
3044950340irq/29-eth0_g0_2566-21runrttasks20:23:390
3044950340irq/29-eth0_g0_22967-21taskset19:55:040
3044950330irq/29-eth0_g0_14928-21df_abs20:54:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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