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2024-06-15 - 12:03

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 Sat Jun 15, 2024 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121530ksoftirqd/1945650irq/30-eth0_g0_21:22:401
121490ksoftirqd/1945650irq/30-eth0_g0_23:06:541
121470ksoftirqd/1945650irq/30-eth0_g0_22:44:171
121470ksoftirqd/1945650irq/30-eth0_g0_21:16:571
121470ksoftirqd/1945650irq/30-eth0_g0_19:37:471
121470ksoftirqd/1945650irq/30-eth0_g0_00:13:421
945650460irq/30-eth0_g0_9454-21kworker/1:023:08:001
121460ksoftirqd/1945650irq/30-eth0_g0_22:07:301
945650450irq/30-eth0_g0_0-21swapper/122:12:471
945650450irq/30-eth0_g0_0-21swapper/122:12:471
121450ksoftirqd/1945650irq/30-eth0_g0_23:15:171
121450ksoftirqd/1945650irq/30-eth0_g0_21:53:191
121450ksoftirqd/1945550irq/29-eth0_g0_21:20:580
121440ksoftirqd/1945550irq/29-eth0_g0_23:10:300
121440ksoftirqd/1945550irq/29-eth0_g0_20:52:451
121430ksoftirqd/1945550irq/29-eth0_g0_22:59:430
121430ksoftirqd/1945550irq/29-eth0_g0_20:42:401
945650420irq/30-eth0_g0_9454-21kworker/1:022:38:241
945550420irq/29-eth0_g0_13-21kworker/0:123:32:330
945550420irq/29-eth0_g0_13-21kworker/0:123:17:230
121420ksoftirqd/1945550irq/29-eth0_g0_23:44:271
121420ksoftirqd/1945550irq/29-eth0_g0_23:27:270
121420ksoftirqd/1945550irq/29-eth0_g0_00:28:140
945650410irq/30-eth0_g0_9454-21kworker/1:022:26:461
945650410irq/30-eth0_g0_9454-21kworker/1:000:34:331
945650410irq/30-eth0_g0_9454-21kworker/1:000:34:331
945650410irq/30-eth0_g0_121ksoftirqd/123:47:491
945550410irq/29-eth0_g0_13-21kworker/0:122:09:030
945550410irq/29-eth0_g0_13-21kworker/0:121:55:490
945550410irq/29-eth0_g0_13-21kworker/0:121:40:580
945650400irq/30-eth0_g0_9454-21kworker/1:022:37:121
945650400irq/30-eth0_g0_121ksoftirqd/100:09:141
945550400irq/29-eth0_g0_31ksoftirqd/020:17:460
945550400irq/29-eth0_g0_13-21kworker/0:123:21:510
945550400irq/29-eth0_g0_13-21kworker/0:122:21:520
1534499401cyclictest9713-21tail21:57:501
121400ksoftirqd/1945650irq/30-eth0_g0_00:14:350
121400ksoftirqd/1945550irq/29-eth0_g0_00:21:461
121400ksoftirqd/1945550irq/29-eth0_g0_00:03:140
945650390irq/30-eth0_g0_9454-21kworker/1:023:23:141
945650390irq/30-eth0_g0_9454-21kworker/1:000:22:571
945650390irq/30-eth0_g0_121ksoftirqd/122:07:101
945550390irq/29-eth0_g0_31ksoftirqd/023:57:450
945550390irq/29-eth0_g0_14990-21ntp_offset19:02:450
945550390irq/29-eth0_g0_13-21kworker/0:122:53:270
945550390irq/29-eth0_g0_13-21kworker/0:122:33:290
945550390irq/29-eth0_g0_13-21kworker/0:122:25:400
945550390irq/29-eth0_g0_13-21kworker/0:121:34:120
945550390irq/29-eth0_g0_121ksoftirqd/100:22:400
1534499399cyclictest0-21swapper/123:39:301
1534499399cyclictest0-21swapper/122:31:121
1534499392cyclictest19473-21head22:57:531
1534499391cyclictest1620-21grep00:27:521
121390ksoftirqd/1945550irq/29-eth0_g0_22:05:230
945650380irq/30-eth0_g0_9454-21kworker/1:023:58:501
945650380irq/30-eth0_g0_14821-21ethtool19:02:411
945650380irq/30-eth0_g0_121ksoftirqd/123:53:411
945650380irq/30-eth0_g0_121ksoftirqd/123:18:061
945650380irq/30-eth0_g0_121ksoftirqd/121:48:321
945650380irq/30-eth0_g0_121ksoftirqd/121:09:041
945650380irq/30-eth0_g0_121ksoftirqd/100:03:301
945650380irq/30-eth0_g0_0-21swapper/122:50:431
945550380irq/29-eth0_g0_13-21kworker/0:123:50:040
945550380irq/29-eth0_g0_13-21kworker/0:123:45:540
945550380irq/29-eth0_g0_13-21kworker/0:123:37:300
945550380irq/29-eth0_g0_13-21kworker/0:123:24:400
945550380irq/29-eth0_g0_13-21kworker/0:123:02:460
945550380irq/29-eth0_g0_13-21kworker/0:122:39:340
945550380irq/29-eth0_g0_13-21kworker/0:122:30:320
945550380irq/29-eth0_g0_13-21kworker/0:121:59:080
945550380irq/29-eth0_g0_13-21kworker/0:121:28:570
945550380irq/29-eth0_g0_13-21kworker/0:121:10:270
945550380irq/29-eth0_g0_13-21kworker/0:100:36:440
945550380irq/29-eth0_g0_13-21kworker/0:100:36:440
945550380irq/29-eth0_g0_12140-21unixbench_multi22:12:440
945550380irq/29-eth0_g0_12140-21unixbench_multi22:12:440
1534499381cyclictest6510-21unixbench_singl21:37:531
121380ksoftirqd/1945650irq/30-eth0_g0_22:42:340
121380ksoftirqd/1945650irq/30-eth0_g0_21:51:500
121380ksoftirqd/1945550irq/29-eth0_g0_21:43:030
121380ksoftirqd/112948-21unixbench_multi22:17:481
945650370irq/30-eth0_g0_9454-21kworker/1:021:43:391
945650370irq/30-eth0_g0_9454-21kworker/1:021:32:311
945650370irq/30-eth0_g0_9454-21kworker/1:021:17:431
945550370irq/29-eth0_g0_32060-21cat20:57:380
945550370irq/29-eth0_g0_21919-21unixbench_multi19:52:450
945550370irq/29-eth0_g0_13-21kworker/0:122:47:290
945550370irq/29-eth0_g0_13-21kworker/0:100:21:350
945550370irq/29-eth0_g0_13-21kworker/0:100:07:440
1534499372cyclictest18220-21ntpdc19:22:401
1534499371cyclictest4613-21awk21:27:431
1534499371cyclictest24921-21wc23:32:411
1534499371cyclictest16084-21grep19:07:451
1534499371cyclictest0-21swapper/120:02:401
945650360irq/30-eth0_g0_9454-21kworker/1:022:54:301
945550360irq/29-eth0_g0_3786-21netstat21:22:390
945550360irq/29-eth0_g0_24810-21cat20:12:390
945550360irq/29-eth0_g0_22400-21cat19:57:410
945550360irq/29-eth0_g0_13-21kworker/0:123:53:250
945550360irq/29-eth0_g0_13-21kworker/0:121:14:520
1534499362cyclictest32422-21grep20:57:491
945550350irq/29-eth0_g0_946-21cat21:07:230
945550350irq/29-eth0_g0_26746-21unixbench_multi20:22:460
945550350irq/29-eth0_g0_19359-21sed19:32:410
945550350irq/29-eth0_g0_16895-21sed19:12:460
1534499351cyclictest25566-21cat20:17:371
1534499351cyclictest24305-21grep23:27:501
1534499351cyclictest21343-21sed19:52:321
945650340irq/30-eth0_g0_28122-21ntp_kernel_err20:32:381
945650340irq/30-eth0_g0_18876-21df19:32:301
945550340irq/29-eth0_g0_30846-21unixbench_singl20:47:450
945550340irq/29-eth0_g0_28936-21ntpdc20:37:410
945550340irq/29-eth0_g0_27823-21df_abs20:32:320
945550340irq/29-eth0_g0_24379-21grep20:07:470
945550340irq/29-eth0_g0_23410-21grep20:02:430
945550340irq/29-eth0_g0_20726-21cat19:47:330
945550340irq/29-eth0_g0_20175-21grep19:37:490
1534499341cyclictest0-21swapper/119:17:461
121340ksoftirqd/1945550irq/29-eth0_g0_20:22:361
945550330irq/29-eth0_g0_18416-21timerandwakeup19:22:460
945550330irq/29-eth0_g0_0-21swapper/020:27:410
945550330irq/29-eth0_g0_0-21swapper/019:17:390
15344993318cyclictest21111-21tail19:47:401
1534499331cyclictest17022-21sort19:17:241
1534499331cyclictest0-21swapper/120:47:321
1534499331cyclictest0-21swapper/120:12:321
945650320irq/30-eth0_g0_23705-21/usr/sbin/munin20:07:341
945550320irq/29-eth0_g0_15797-21ntpdc19:07:380
945650310irq/30-eth0_g0_1534499cyclictest21:07:231
945550310irq/29-eth0_g0_31657-21sed20:52:460
945550310irq/29-eth0_g0_29378-21cpu20:42:330
945550310irq/29-eth0_g0_18681-21sort19:32:220
1534499311cyclictest29238-21unixbench_singl20:37:481
1534499311cyclictest0-21swapper/120:27:421
945650300irq/30-eth0_g0_22449-21netstat19:57:411
945550290irq/29-eth0_g0_0-21swapper/019:47:230
15344992813cyclictest20425-21sort19:47:241
945550270irq/29-eth0_g0_18718-21cut19:32:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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