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2025-02-23 - 04:38

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 Sun Feb 23, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1564821590sleep0121750irq/30-eth0_g0_21:16:260
2588521250sleep0121650irq/29-eth0_g0_22:08:180
1211210ksoftirqd/1121750irq/30-eth0_g0_23:30:101
1112221180sleep0121650irq/29-eth0_g0_23:30:280
3248921070sleep0121650irq/29-eth0_g0_22:38:170
3248921070sleep0121650irq/29-eth0_g0_22:38:170
2195921010sleep1121650irq/29-eth0_g0_00:21:081
1211010ksoftirqd/1121650irq/29-eth0_g0_23:55:161
183262840sleep0121650irq/29-eth0_g0_00:06:260
183262840sleep0121650irq/29-eth0_g0_00:06:260
121780ksoftirqd/1121750irq/30-eth0_g0_00:15:591
121770ksoftirqd/1121750irq/30-eth0_g0_20:41:491
121760ksoftirqd/1121750irq/30-eth0_g0_23:28:591
15622730sleep1121650irq/29-eth0_g0_22:45:421
121700ksoftirqd/1121750irq/30-eth0_g0_20:25:141
121700ksoftirqd/1121750irq/30-eth0_g0_20:25:141
121680ksoftirqd/1121650irq/29-eth0_g0_22:58:211
121680ksoftirqd/1121650irq/29-eth0_g0_22:58:211
84402650sleep0121650irq/29-eth0_g0_23:18:360
312812620sleep1121650irq/29-eth0_g0_22:33:241
76712580chrt121750irq/30-eth0_g0_23:15:121
222562550sleep0121650irq/29-eth0_g0_00:24:380
121550ksoftirqd/1121750irq/30-eth0_g0_22:11:581
215462540sleep0121750irq/30-eth0_g0_21:46:230
313722530sleep0121750irq/30-eth0_g0_22:34:280
43512520sleep0121650irq/29-eth0_g0_22:59:320
43512520sleep0121650irq/29-eth0_g0_22:59:320
167632510sleep0121650irq/29-eth0_g0_23:58:210
52992500sleep0121750irq/30-eth0_g0_23:01:180
121650480irq/29-eth0_g0_1665599cyclictest23:10:110
121480ksoftirqd/1121750irq/30-eth0_g0_21:53:301
121480ksoftirqd/1121750irq/30-eth0_g0_21:34:111
121480ksoftirqd/1121750irq/30-eth0_g0_20:55:161
121650460irq/29-eth0_g0_31ksoftirqd/000:35:090
121650460irq/29-eth0_g0_31ksoftirqd/000:30:120
121650460irq/29-eth0_g0_1665599cyclictest00:03:400
121650460irq/29-eth0_g0_1665599cyclictest00:03:400
121460ksoftirqd/1121750irq/30-eth0_g0_00:14:570
121750450irq/30-eth0_g0_16116-21sort19:05:181
121650450irq/29-eth0_g0_1665599cyclictest22:54:330
121450ksoftirqd/1121750irq/30-eth0_g0_22:23:011
121450ksoftirqd/1121750irq/30-eth0_g0_00:01:271
121450ksoftirqd/1121750irq/30-eth0_g0_00:01:271
237872440chrt121750irq/30-eth0_g0_00:32:221
153912440sleep0121750irq/30-eth0_g0_23:51:380
121650440irq/29-eth0_g0_1665599cyclictest22:10:380
121650440irq/29-eth0_g0_1665599cyclictest21:25:050
121750430irq/30-eth0_g0_470-21kworker/1:121:55:211
121650430irq/29-eth0_g0_1665599cyclictest22:16:560
121650430irq/29-eth0_g0_1665599cyclictest22:16:560
121650430irq/29-eth0_g0_15764-21latency19:05:130
300572420sleep0121750irq/30-eth0_g0_22:28:200
121750420irq/30-eth0_g0_171082sleep121:24:131
121420ksoftirqd/1121650irq/29-eth0_g0_22:39:421
121420ksoftirqd/1121650irq/29-eth0_g0_22:39:421
121420ksoftirqd/1121650irq/29-eth0_g0_21:11:321
1665699418cyclictest121750irq/30-eth0_g0_22:52:441
121750410irq/30-eth0_g0_470-21kworker/1:123:05:171
121750410irq/30-eth0_g0_470-21kworker/1:100:26:441
121750410irq/30-eth0_g0_0-21swapper/122:07:121
121650410irq/29-eth0_g0_31ksoftirqd/023:44:540
121650410irq/29-eth0_g0_31ksoftirqd/022:40:380
121650410irq/29-eth0_g0_1665599cyclictest20:45:200
121410ksoftirqd/1121750irq/30-eth0_g0_23:20:090
121410ksoftirqd/1121650irq/29-eth0_g0_23:43:571
121410ksoftirqd/1121650irq/29-eth0_g0_21:29:351
1665699401cyclictest66002sleep123:10:151
121650400irq/29-eth0_g0_31ksoftirqd/022:23:280
121650400irq/29-eth0_g0_1665599cyclictest21:55:090
121400ksoftirqd/1121750irq/30-eth0_g0_22:47:210
16656993934cyclictest28283-21swap19:55:191
121750390irq/30-eth0_g0_470-21kworker/1:122:29:561
121750390irq/30-eth0_g0_470-21kworker/1:100:06:051
121750390irq/30-eth0_g0_470-21kworker/1:100:06:051
121650390irq/29-eth0_g0_13-21kworker/0:123:35:060
121650390irq/29-eth0_g0_0-21swapper/021:52:340
121650390irq/29-eth0_g0_0-21swapper/020:50:210
121650390irq/29-eth0_g0_0-21swapper/000:15:170
121390ksoftirqd/1121750irq/30-eth0_g0_21:23:380
1665699382cyclictest0-21swapper/100:14:571
1665699381cyclictest23520-21head19:35:181
1665699381cyclictest21918-21latency_hist21:49:571
1665699381cyclictest2086-21runrttasks21:02:321
1665699381cyclictest13505-21diskmemload23:54:071
1665699381cyclictest13505-21diskmemload23:37:161
121750380irq/30-eth0_g0_470-21kworker/1:122:19:511
121750380irq/30-eth0_g0_470-21kworker/1:122:19:511
121750380irq/30-eth0_g0_470-21kworker/1:121:35:251
121750380irq/30-eth0_g0_121ksoftirqd/123:49:561
121750380irq/30-eth0_g0_121ksoftirqd/119:20:101
121650380irq/29-eth0_g0_1665599cyclictest21:10:140
121650380irq/29-eth0_g0_13-21kworker/0:123:49:100
121380ksoftirqd/1121650irq/29-eth0_g0_20:11:201
251332370sleep1121650irq/29-eth0_g0_22:00:241
1665699371cyclictest7646-21sed20:45:101
1665699371cyclictest4284-21proc_pri20:30:181
1665699371cyclictest25109-21taskset00:38:321
121750370irq/30-eth0_g0_9635-21chrt23:23:171
121750370irq/30-eth0_g0_470-21kworker/1:123:01:201
121750370irq/30-eth0_g0_470-21kworker/1:121:43:451
121650370irq/29-eth0_g0_2086-21runrttasks20:35:570
99562360sleep0121750irq/30-eth0_g0_23:26:070
1665699362cyclictest20408-21/usr/sbin/munin19:25:161
1665699361cyclictest13507-21munin-run21:09:571
121750360irq/30-eth0_g0_9769-21taskset20:53:571
121750360irq/30-eth0_g0_5445-21runrttasks20:35:161
121750360irq/30-eth0_g0_470-21kworker/1:121:18:211
121650360irq/29-eth0_g0_24733-21unixbench_singl19:40:190
121650360irq/29-eth0_g0_2235-21lldpd00:28:590
121650360irq/29-eth0_g0_2086-21runrttasks20:10:550
121650360irq/29-eth0_g0_2086-21runrttasks19:21:330
121650360irq/29-eth0_g0_13-21kworker/0:123:07:040
121650360irq/29-eth0_g0_0-21swapper/022:00:340
121650360irq/29-eth0_g0_0-21swapper/021:30:260
121360ksoftirqd/1121650irq/29-eth0_g0_21:40:080
1665699352cyclictest933-21grep22:40:181
1665699351cyclictest30621-21ps20:05:171
1665699351cyclictest26602-21df_abs19:50:091
1665699351cyclictest16807-21taskset19:10:101
121650350irq/29-eth0_g0_23522-21unixbench_singl19:35:180
121650350irq/29-eth0_g0_2086-21runrttasks20:43:200
121650350irq/29-eth0_g0_2086-21runrttasks19:56:230
121650350irq/29-eth0_g0_2086-21runrttasks19:31:070
121650350irq/29-eth0_g0_2086-21runrttasks19:19:390
121650350irq/29-eth0_g0_0-21swapper/021:36:050
121350ksoftirqd/1121650irq/29-eth0_g0_19:40:121
1665699341cyclictest0-21swapper/120:20:151
121650340irq/29-eth0_g0_30790-21unixbench_multi20:05:190
121650340irq/29-eth0_g0_25924-21unixbench_multi19:45:210
121650340irq/29-eth0_g0_2086-21runrttasks20:21:130
121650340irq/29-eth0_g0_2086-21runrttasks19:59:590
121650340irq/29-eth0_g0_2086-21runrttasks19:25:130
121650340irq/29-eth0_g0_13076-21head21:05:170
121650340irq/29-eth0_g0_10621-21unixbench_singl20:55:200
1665699331cyclictest0-21swapper/120:00:161
121750330irq/30-eth0_g0_22313-21grep19:30:251
121650330irq/29-eth0_g0_4310-21ps20:30:180
121650330irq/29-eth0_g0_2683-21df20:25:080
121650330irq/29-eth0_g0_2683-21df20:25:080
121650330irq/29-eth0_g0_2086-21runrttasks20:18:510
16656993217cyclictest25742-21ps19:45:171
1665699321cyclictest422-21/usr/sbin/munin20:15:121
121750320irq/30-eth0_g0_0-21swapper/119:18:391
121650320irq/29-eth0_g0_2086-21runrttasks19:53:510
121650320irq/29-eth0_g0_17030-21latency19:10:140
121650290irq/29-eth0_g0_11535-21ntp_kernel_err21:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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