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2025-05-02 - 23:36

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 Fri May 02, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211240ksoftirqd/1121750irq/30-eth0_g0_07:08:321
121890ksoftirqd/1121650irq/29-eth0_g0_07:24:510
121870ksoftirqd/1121650irq/29-eth0_g0_10:09:530
121850ksoftirqd/1121750irq/30-eth0_g0_09:34:370
121840ksoftirqd/1121750irq/30-eth0_g0_10:03:110
319252790sleep1121750irq/30-eth0_g0_09:30:241
121600ksoftirqd/1121750irq/30-eth0_g0_10:57:470
307772560sleep0121750irq/30-eth0_g0_09:26:170
307772560sleep0121750irq/30-eth0_g0_09:26:170
121650540irq/29-eth0_g0_2918499cyclictest11:20:271
203732530sleep1121750irq/30-eth0_g0_10:55:571
121650520irq/29-eth0_g0_2918499cyclictest09:39:541
121650520irq/29-eth0_g0_2918499cyclictest09:39:541
121520ksoftirqd/1121750irq/30-eth0_g0_11:06:551
2918499501cyclictest215842sleep108:49:501
2918499501cyclictest15099-21taskset10:34:581
2918499491cyclictest708-21df_abs11:49:491
2918499491cyclictest26161-21diskmemload10:01:411
2918499481cyclictest26161-21diskmemload10:24:431
2918499481cyclictest24993-21latency_hist09:04:381
2918499481cyclictest1746-21egrep07:29:501
2918499481cyclictest0-21swapper/107:10:001
2918499471cyclictest19068-21taskset08:39:531
2918499471cyclictest18060-21chrt08:34:561
2918499471cyclictest12272-21unixbench_multi12:35:011
121750470irq/30-eth0_g0_121ksoftirqd/109:08:591
121750470irq/30-eth0_g0_121ksoftirqd/109:08:591
121650470irq/29-eth0_g0_2918499cyclictest11:59:101
121650470irq/29-eth0_g0_1893-21runrttasks10:44:010
121650470irq/29-eth0_g0_10965-21unixbench_multi08:04:580
121470ksoftirqd/1121750irq/30-eth0_g0_09:29:251
121470ksoftirqd/1121750irq/30-eth0_g0_09:29:251
121470ksoftirqd/1121750irq/30-eth0_g0_09:11:081
29184994616cyclictest9234-21df_abs07:59:501
2918499461cyclictest29999-21unixbench_multi11:35:001
2918499461cyclictest26161-21diskmemload10:54:081
121750460irq/30-eth0_g0_2918499cyclictest11:14:121
121750460irq/30-eth0_g0_29180-21cyclictest12:14:541
121750460irq/30-eth0_g0_121ksoftirqd/112:09:511
121650460irq/29-eth0_g0_2918499cyclictest09:37:531
121650460irq/29-eth0_g0_2918499cyclictest09:37:531
121460ksoftirqd/1121750irq/30-eth0_g0_08:44:520
121460ksoftirqd/1121650irq/29-eth0_g0_10:46:291
2918499451cyclictest3747-21unixbench_singl11:59:591
2918499451cyclictest0-21swapper/111:29:581
2918499451cyclictest0-21swapper/110:59:591
2918499451cyclictest0-21swapper/107:47:541
121750450irq/30-eth0_g0_2918499cyclictest10:07:051
121750450irq/30-eth0_g0_2918499cyclictest10:07:051
121750450irq/30-eth0_g0_2918499cyclictest09:58:221
121750450irq/30-eth0_g0_2918499cyclictest09:50:171
121750450irq/30-eth0_g0_121ksoftirqd/112:30:251
121750450irq/30-eth0_g0_121ksoftirqd/111:45:181
121750450irq/30-eth0_g0_121ksoftirqd/111:40:561
121650450irq/29-eth0_g0_1893-21runrttasks08:04:370
121450ksoftirqd/1121750irq/30-eth0_g0_11:26:300
30902440sleep0121750irq/30-eth0_g0_09:45:030
2918499442cyclictest12721-21latency_hist08:14:381
2918499441cyclictest1085-21timerandwakeup07:25:061
2918499441cyclictest0-21swapper/112:19:531
2918499441cyclictest0-21swapper/110:19:551
2918499441cyclictest0-21swapper/108:54:541
121750440irq/30-eth0_g0_2918499cyclictest12:28:321
121750440irq/30-eth0_g0_1219-21kworker/1:211:26:181
121750440irq/30-eth0_g0_121ksoftirqd/112:09:371
121750440irq/30-eth0_g0_121ksoftirqd/107:39:381
121750440irq/30-eth0_g0_0-21swapper/110:44:221
121650440irq/29-eth0_g0_427-21latency_hist07:24:380
29184994314cyclictest32613-21runrttasks07:21:511
2918499431cyclictest7305-21unixbench_multi07:49:581
2918499431cyclictest25084-21grep11:15:021
2918499431cyclictest13920-21latency_hist08:19:381
121750430irq/30-eth0_g0_2918499cyclictest09:17:131
121750430irq/30-eth0_g0_2918499cyclictest09:17:131
121750430irq/30-eth0_g0_0-21swapper/110:18:381
121650430irq/29-eth0_g0_1893-21runrttasks07:08:080
121650430irq/29-eth0_g0_13-21kworker/0:111:48:320
121650430irq/29-eth0_g0_13-21kworker/0:110:33:210
121430ksoftirqd/1121750irq/30-eth0_g0_11:49:570
121430ksoftirqd/1121750irq/30-eth0_g0_11:37:040
121430ksoftirqd/1121750irq/30-eth0_g0_11:34:130
121430ksoftirqd/1121650irq/29-eth0_g0_09:45:411
2918499421cyclictest14074-21unixbench_multi10:30:021
2918499421cyclictest0-21swapper/108:45:351
121750420irq/30-eth0_g0_121ksoftirqd/110:11:401
121650420irq/29-eth0_g0_31ksoftirqd/011:55:000
121650420irq/29-eth0_g0_2918499cyclictest08:29:551
121650420irq/29-eth0_g0_13-21kworker/0:109:54:560
121650420irq/29-eth0_g0_13-21kworker/0:109:12:010
2918499411cyclictest0-21swapper/107:17:351
121750410irq/30-eth0_g0_2918499cyclictest09:22:161
121650410irq/29-eth0_g0_13-21kworker/0:110:08:280
121650410irq/29-eth0_g0_13-21kworker/0:110:08:280
2918499401cyclictest103922sleep108:04:491
2918499401cyclictest0-21swapper/108:22:291
121650400irq/29-eth0_g0_1893-21runrttasks07:40:470
121650400irq/29-eth0_g0_13-21kworker/0:112:25:570
121650400irq/29-eth0_g0_13-21kworker/0:112:06:250
121650400irq/29-eth0_g0_13-21kworker/0:110:23:230
121650400irq/29-eth0_g0_0-21swapper/009:34:440
121650400irq/29-eth0_g0_0-21swapper/009:34:440
2918499391cyclictest4754-21sendmail_mailst07:39:561
2918499391cyclictest0-21swapper/107:54:541
121750390irq/30-eth0_g0_14710-21unixbench_singl08:20:020
121750390irq/30-eth0_g0_0-21swapper/008:25:000
121650390irq/29-eth0_g0_29278-21/usr/sbin/munin07:09:560
121650390irq/29-eth0_g0_2085-21missed_timers07:29:540
121650390irq/29-eth0_g0_1893-21runrttasks11:19:150
121650390irq/29-eth0_g0_13-21kworker/0:111:23:140
121650390irq/29-eth0_g0_13-21kworker/0:111:00:410
121650390irq/29-eth0_g0_13-21kworker/0:110:35:540
121650380irq/29-eth0_g0_2918299cyclictest08:54:580
121650380irq/29-eth0_g0_22644-21sed11:05:000
121650380irq/29-eth0_g0_13-21kworker/0:112:18:060
121650380irq/29-eth0_g0_13-21kworker/0:111:41:190
121650380irq/29-eth0_g0_13-21kworker/0:111:12:350
121650380irq/29-eth0_g0_0-21swapper/010:50:040
121650380irq/29-eth0_g0_0-21swapper/009:40:140
121650380irq/29-eth0_g0_0-21swapper/009:40:140
121750370irq/30-eth0_g0_1893-21runrttasks09:15:410
121750370irq/30-eth0_g0_1893-21runrttasks09:15:410
121650370irq/29-eth0_g0_31ksoftirqd/012:22:390
121650370irq/29-eth0_g0_25563-21sendmail_mailqu09:04:580
121650370irq/29-eth0_g0_25563-21sendmail_mailqu09:04:580
121650370irq/29-eth0_g0_19569-21unixbench_multi08:40:010
121650370irq/29-eth0_g0_1893-21runrttasks12:32:230
121650370irq/29-eth0_g0_17430-21wc10:44:530
121650370irq/29-eth0_g0_13-21kworker/0:112:01:210
121650370irq/29-eth0_g0_12900-21unixbench_singl10:25:010
121650370irq/29-eth0_g0_11560-21/usr/sbin/munin08:10:160
2918499361cyclictest15237-21cpu08:24:511
121750360irq/30-eth0_g0_18812-21latency_hist08:39:380
121650360irq/29-eth0_g0_9895-21df_abs10:14:520
121650360irq/29-eth0_g0_8018-21df_abs07:54:530
121650360irq/29-eth0_g0_6105-21seq12:09:560
121650360irq/29-eth0_g0_24996-21latency_hist09:04:380
121650360irq/29-eth0_g0_21415-21df08:49:480
121650360irq/29-eth0_g0_1893-21runrttasks12:34:580
121650360irq/29-eth0_g0_1893-21runrttasks07:39:170
121750350irq/30-eth0_g0_1893-21runrttasks09:20:030
121650350irq/29-eth0_g0_7304-21unixbench_multi07:49:580
121650350irq/29-eth0_g0_13-21kworker/0:109:53:520
121650340irq/29-eth0_g0_6625-21ls07:49:380
121650340irq/29-eth0_g0_1893-21runrttasks08:33:090
121650340irq/29-eth0_g0_0-21swapper/007:15:330
121650330irq/29-eth0_g0_13311-21zcat08:14:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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