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2025-11-18 - 02:59

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 all highest latencies:
System rack3slot5s.osadl.org (updated Tue Nov 18, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121940ksoftirqd/1121750irq/30-eth0_g0_21:32:291
121670ksoftirqd/1121650irq/29-eth0_g0_22:01:450
103492670sleep1121650irq/29-eth0_g0_23:16:201
155532660sleep0121650irq/29-eth0_g0_23:39:440
176902580sleep1121750irq/30-eth0_g0_21:35:131
222412570sleep1121650irq/29-eth0_g0_21:54:491
8162520sleep1121750irq/30-eth0_g0_22:39:541
8162520sleep1121750irq/30-eth0_g0_22:39:541
121500ksoftirqd/1121750irq/30-eth0_g0_23:23:061
121500ksoftirqd/1121750irq/30-eth0_g0_21:19:230
121500ksoftirqd/1121650irq/29-eth0_g0_23:45:510
121650470irq/29-eth0_g0_31ksoftirqd/023:25:160
121470ksoftirqd/1121750irq/30-eth0_g0_22:42:131
121470ksoftirqd/1121750irq/30-eth0_g0_22:14:561
121470ksoftirqd/1121650irq/29-eth0_g0_00:17:170
121750460irq/30-eth0_g0_121ksoftirqd/100:12:551
121460ksoftirqd/1121750irq/30-eth0_g0_22:05:011
121460ksoftirqd/1121750irq/30-eth0_g0_21:18:441
121460ksoftirqd/1121650irq/29-eth0_g0_00:04:040
121650440irq/29-eth0_g0_1894-21runrttasks00:33:410
121440ksoftirqd/1121750irq/30-eth0_g0_23:04:521
121440ksoftirqd/1121750irq/30-eth0_g0_00:17:571
121440ksoftirqd/1121650irq/29-eth0_g0_23:45:381
121440ksoftirqd/1121650irq/29-eth0_g0_23:34:000
258832430sleep0121650irq/29-eth0_g0_22:09:270
139632430sleep1121750irq/30-eth0_g0_23:30:331
121750430irq/30-eth0_g0_8548-21latency23:10:101
121750430irq/30-eth0_g0_1219-21kworker/1:223:53:491
280572420sleep0121650irq/29-eth0_g0_22:16:150
121750420irq/30-eth0_g0_1219-21kworker/1:222:26:161
121750420irq/30-eth0_g0_1219-21kworker/1:200:09:551
121420ksoftirqd/1121750irq/30-eth0_g0_00:14:070
121420ksoftirqd/1121650irq/29-eth0_g0_20:49:561
121650410irq/29-eth0_g0_31ksoftirqd/021:46:450
121650410irq/29-eth0_g0_13302-21runrttasks19:05:100
121650410irq/29-eth0_g0_13-21kworker/0:123:21:490
121650410irq/29-eth0_g0_13-21kworker/0:123:02:540
121650410irq/29-eth0_g0_13-21kworker/0:121:22:260
121410ksoftirqd/1121750irq/30-eth0_g0_21:25:190
121410ksoftirqd/1121750irq/30-eth0_g0_21:25:190
121410ksoftirqd/1121650irq/29-eth0_g0_23:53:450
121410ksoftirqd/1121650irq/29-eth0_g0_23:09:171
121410ksoftirqd/1121650irq/29-eth0_g0_23:09:171
121410ksoftirqd/1121650irq/29-eth0_g0_22:53:481
121410ksoftirqd/1121650irq/29-eth0_g0_21:29:551
121410ksoftirqd/1121650irq/29-eth0_g0_21:29:551
14218994025cyclictest1894-21runrttasks22:58:071
121750400irq/30-eth0_g0_31ksoftirqd/022:57:050
121750400irq/30-eth0_g0_14215-21munin-run19:09:551
121750400irq/30-eth0_g0_1219-21kworker/1:223:38:091
121750400irq/30-eth0_g0_1219-21kworker/1:222:47:071
121750400irq/30-eth0_g0_121ksoftirqd/121:59:191
121750400irq/30-eth0_g0_121ksoftirqd/100:21:271
121650400irq/29-eth0_g0_13-21kworker/0:122:44:580
121650400irq/29-eth0_g0_13-21kworker/0:121:13:240
121400ksoftirqd/1121750irq/30-eth0_g0_21:41:250
121400ksoftirqd/1121750irq/30-eth0_g0_19:27:570
1421899391cyclictest6932-21chrt20:50:161
1421899391cyclictest311442sleep122:30:121
1421899391cyclictest311442sleep122:30:121
1421899391cyclictest18736-21taskset21:40:071
1421899391cyclictest13765-21/usr/sbin/munin21:20:171
1421899391cyclictest12525-21find23:25:191
1421899391cyclictest11220-21diskmemload22:21:261
121750390irq/30-eth0_g0_23954-21/usr/sbin/munin22:00:121
121750390irq/30-eth0_g0_1219-21kworker/1:223:40:191
121750390irq/30-eth0_g0_1219-21kworker/1:221:49:341
121750390irq/30-eth0_g0_1219-21kworker/1:200:36:041
121750390irq/30-eth0_g0_121ksoftirqd/100:27:571
121750390irq/30-eth0_g0_0-21swapper/100:30:081
121650390irq/29-eth0_g0_1894-21runrttasks21:06:380
121650390irq/29-eth0_g0_13-21kworker/0:100:25:400
121650390irq/29-eth0_g0_121ksoftirqd/121:31:310
121390ksoftirqd/1121750irq/30-eth0_g0_23:41:560
121390ksoftirqd/1121750irq/30-eth0_g0_23:16:330
121390ksoftirqd/1121750irq/30-eth0_g0_21:54:120
121390ksoftirqd/1121750irq/30-eth0_g0_21:37:440
121390ksoftirqd/1121750irq/30-eth0_g0_20:50:290
121390ksoftirqd/1121750irq/30-eth0_g0_20:42:360
121390ksoftirqd/1121750irq/30-eth0_g0_20:06:150
121390ksoftirqd/1121750irq/30-eth0_g0_19:37:140
121390ksoftirqd/1121750irq/30-eth0_g0_00:22:390
121390ksoftirqd/1121650irq/29-eth0_g0_20:27:471
121390ksoftirqd/1121650irq/29-eth0_g0_19:26:441
1421899382cyclictest1894-21runrttasks00:01:441
1421899381cyclictest29403-21ntp_kernel_pll_20:10:141
1421899381cyclictest2894-21df20:35:121
1421899381cyclictest257212sleep119:55:151
121750380irq/30-eth0_g0_1894-21runrttasks20:36:470
121650380irq/29-eth0_g0_5821-21grep20:45:180
121650380irq/29-eth0_g0_31ksoftirqd/022:22:400
121650380irq/29-eth0_g0_29695-21/usr/sbin/munin22:25:150
121650380irq/29-eth0_g0_26042-21unixbench_singl19:55:210
121650380irq/29-eth0_g0_1421799cyclictest22:52:320
121650380irq/29-eth0_g0_13-21kworker/0:123:10:520
121650380irq/29-eth0_g0_13-21kworker/0:122:37:250
121650380irq/29-eth0_g0_13-21kworker/0:122:37:250
121650380irq/29-eth0_g0_13-21kworker/0:100:39:040
121380ksoftirqd/123358-21grep19:45:171
121380ksoftirqd/1121650irq/29-eth0_g0_20:42:011
1421899371cyclictest26404-21awk22:10:131
1421899371cyclictest159202sleep119:15:131
121750370irq/30-eth0_g0_1219-21kworker/1:221:11:361
121650370irq/29-eth0_g0_31530-21df20:20:070
121650370irq/29-eth0_g0_30305-21df20:15:080
121650370irq/29-eth0_g0_26704-21unixbench_singl22:10:180
121650370irq/29-eth0_g0_21799-21df_abs19:40:100
121650370irq/29-eth0_g0_1894-21runrttasks20:27:460
121650370irq/29-eth0_g0_1894-21runrttasks20:01:570
121650370irq/29-eth0_g0_13-21kworker/0:123:07:180
121650370irq/29-eth0_g0_13-21kworker/0:123:07:180
121650370irq/29-eth0_g0_13-21kworker/0:122:41:440
121650370irq/29-eth0_g0_13-21kworker/0:122:30:080
121650370irq/29-eth0_g0_13-21kworker/0:122:30:080
121650370irq/29-eth0_g0_13-21kworker/0:121:58:500
1421899362cyclictest7804-21seq20:55:121
1421899362cyclictest19741-21grep19:30:161
1421899362cyclictest17406-21unixbench_multi19:20:201
1421899361cyclictest26798-21chrt20:00:101
1421899361cyclictest24766-21grep19:50:181
1421899361cyclictest14771-21proc_pri19:10:161
1421899361cyclictest0-21swapper/123:55:131
1421899361cyclictest0-21swapper/120:05:091
121650360irq/29-eth0_g0_8284-21unixbench_multi20:55:210
121650360irq/29-eth0_g0_13-21kworker/0:123:58:580
121360ksoftirqd/1121750irq/30-eth0_g0_19:32:000
1421899351cyclictest21874-21ethtool19:40:121
1421899351cyclictest2029-21snmpd20:30:101
121750350irq/30-eth0_g0_1894-21runrttasks19:48:490
121650350irq/29-eth0_g0_30161-21ls20:14:550
121650350irq/29-eth0_g0_24343-21interrupts19:50:110
121650350irq/29-eth0_g0_1894-21runrttasks21:00:570
121650350irq/29-eth0_g0_13-21kworker/0:100:04:580
121350ksoftirqd/1121750irq/30-eth0_g0_19:11:420
1421899341cyclictest31932-21ps20:20:151
121650340irq/29-eth0_g0_1894-21runrttasks19:20:310
121650340irq/29-eth0_g0_1618-21sed20:30:080
121650340irq/29-eth0_g0_15542-21cpu19:15:070
1421899331cyclictest8848-21latency_hist20:59:561
1421899331cyclictest303042sleep120:15:081
121330ksoftirqd/1121650irq/29-eth0_g0_21:05:181
121650310irq/29-eth0_g0_20810-21netstat19:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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