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2025-04-11 - 22:43

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 Fri Apr 11, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1659521640sleep1121450irq/29-eth0_g0_11:43:161
2032321470sleep0121550irq/30-eth0_g0_09:28:490
121820ksoftirqd/1121550irq/30-eth0_g0_09:48:041
121760ksoftirqd/1121450irq/29-eth0_g0_08:58:051
121750ksoftirqd/1121550irq/30-eth0_g0_10:16:171
121730ksoftirqd/1121550irq/30-eth0_g0_11:51:451
121680ksoftirqd/1121450irq/29-eth0_g0_07:41:521
121660ksoftirqd/1121550irq/30-eth0_g0_12:00:121
121600ksoftirqd/1121550irq/30-eth0_g0_11:35:051
121580ksoftirqd/1121450irq/29-eth0_g0_12:20:121
121570ksoftirqd/1121550irq/30-eth0_g0_09:15:071
121570ksoftirqd/1121450irq/29-eth0_g0_09:35:501
121550ksoftirqd/1121450irq/29-eth0_g0_08:50:171
121530ksoftirqd/1121550irq/30-eth0_g0_10:07:271
121530ksoftirqd/1121550irq/30-eth0_g0_08:20:151
121520ksoftirqd/1121550irq/30-eth0_g0_12:18:411
121520ksoftirqd/1121550irq/30-eth0_g0_12:17:310
121520ksoftirqd/1121550irq/30-eth0_g0_10:49:301
121520ksoftirqd/1121450irq/29-eth0_g0_11:39:540
98502510sleep0121550irq/30-eth0_g0_11:11:540
326682510sleep0121450irq/29-eth0_g0_10:26:420
121510ksoftirqd/1121550irq/30-eth0_g0_11:10:181
121510ksoftirqd/1121550irq/30-eth0_g0_10:03:431
326502500sleep0121450irq/29-eth0_g0_08:04:050
121450500irq/29-eth0_g0_31ksoftirqd/009:40:140
226182490sleep0121550irq/30-eth0_g0_12:14:320
121450490irq/29-eth0_g0_13-21kworker/0:110:00:090
121490ksoftirqd/1121550irq/30-eth0_g0_11:25:221
121490ksoftirqd/1121550irq/30-eth0_g0_10:55:081
121490ksoftirqd/1121550irq/30-eth0_g0_09:51:571
121480ksoftirqd/1121450irq/29-eth0_g0_11:29:430
121450470irq/29-eth0_g0_31ksoftirqd/010:55:090
121470ksoftirqd/1121550irq/30-eth0_g0_10:10:461
121460ksoftirqd/1121550irq/30-eth0_g0_11:47:351
121460ksoftirqd/1121550irq/30-eth0_g0_10:32:031
121460ksoftirqd/1121450irq/29-eth0_g0_09:05:141
41112450sleep1121550irq/30-eth0_g0_10:43:531
121550450irq/30-eth0_g0_121ksoftirqd/110:52:571
121450ksoftirqd/1121550irq/30-eth0_g0_12:34:271
121450ksoftirqd/1121550irq/30-eth0_g0_11:24:291
121450ksoftirqd/1121550irq/30-eth0_g0_09:11:121
225012440sleep0121450irq/29-eth0_g0_09:35:410
121550440irq/30-eth0_g0_1221-21kworker/1:210:25:221
121450440irq/29-eth0_g0_13-21kworker/0:109:20:160
121440ksoftirqd/1121550irq/30-eth0_g0_12:27:460
121440ksoftirqd/1121550irq/30-eth0_g0_08:05:060
121450430irq/29-eth0_g0_1954-21runrttasks07:08:110
121450430irq/29-eth0_g0_131kworker/0:111:15:460
121430ksoftirqd/1121550irq/30-eth0_g0_12:26:261
121430ksoftirqd/1121550irq/30-eth0_g0_10:06:050
1926199421cyclictest1849-21chrt08:10:121
121550420irq/30-eth0_g0_1221-21kworker/1:211:55:531
121550420irq/30-eth0_g0_1221-21kworker/1:209:33:101
121550420irq/30-eth0_g0_1221-21kworker/1:209:23:041
121450420irq/29-eth0_g0_13-21kworker/0:112:39:050
121420ksoftirqd/1121550irq/30-eth0_g0_11:44:070
121550410irq/30-eth0_g0_1221-21kworker/1:211:31:241
121450410irq/29-eth0_g0_31ksoftirqd/012:04:110
121450410irq/29-eth0_g0_31ksoftirqd/010:32:130
121450410irq/29-eth0_g0_13299-21df_abs11:30:070
121450410irq/29-eth0_g0_13-21kworker/0:110:10:160
121450410irq/29-eth0_g0_13-21kworker/0:109:31:500
121450410irq/29-eth0_g0_121ksoftirqd/111:51:070
121450410irq/29-eth0_g0_121ksoftirqd/107:44:540
121450410irq/29-eth0_g0_10600-21ntp_states08:45:140
121450410irq/29-eth0_g0_0-21swapper/007:49:200
1926199401cyclictest1954-21runrttasks07:45:141
121550400irq/30-eth0_g0_1221-21kworker/1:211:14:581
121450400irq/29-eth0_g0_31ksoftirqd/011:55:540
121450400irq/29-eth0_g0_23972-21/usr/sbin/munin12:20:120
121450400irq/29-eth0_g0_16235-21diskmemload09:14:570
121450400irq/29-eth0_g0_13-21kworker/0:110:49:490
121450400irq/29-eth0_g0_13-21kworker/0:110:37:080
121450400irq/29-eth0_g0_121ksoftirqd/110:23:470
121450400irq/29-eth0_g0_11741-21missed_timers11:20:100
1926199391cyclictest16235-21diskmemload12:13:231
1926199391cyclictest16235-21diskmemload11:02:251
1926199391cyclictest0-21swapper/107:19:051
121550390irq/30-eth0_g0_31ksoftirqd/009:05:120
121550390irq/30-eth0_g0_1221-21kworker/1:210:39:531
121450390irq/29-eth0_g0_31ksoftirqd/009:56:470
121450390irq/29-eth0_g0_244212sleep009:47:570
121450390irq/29-eth0_g0_1954-21runrttasks08:21:280
121450390irq/29-eth0_g0_1926099cyclictest11:06:510
121450390irq/29-eth0_g0_13-21kworker/0:112:06:440
121450390irq/29-eth0_g0_13-21kworker/0:111:04:490
1926199382cyclictest31461-21df_inode10:20:061
1926199381cyclictest29539-21grep07:50:141
1926199381cyclictest29539-21grep07:50:141
121550380irq/30-eth0_g0_4794-21/usr/sbin/munin10:50:050
121550380irq/30-eth0_g0_1221-21kworker/1:209:27:291
121550380irq/30-eth0_g0_0-21swapper/112:06:471
121450380irq/29-eth0_g0_31ksoftirqd/010:18:050
121450380irq/29-eth0_g0_13-21kworker/0:112:34:390
121450380irq/29-eth0_g0_13-21kworker/0:111:47:360
121450380irq/29-eth0_g0_13-21kworker/0:109:50:540
121450380irq/29-eth0_g0_13-21kworker/0:109:10:330
121380ksoftirqd/1121550irq/30-eth0_g0_08:49:551
1926199372cyclictest1954-21runrttasks07:39:231
1926199371cyclictest7228-21head08:30:181
121550370irq/30-eth0_g0_8437-21unixbench_singl08:35:171
121550370irq/30-eth0_g0_23185-21/usr/sbin/munin07:25:071
121550370irq/30-eth0_g0_1221-21kworker/1:212:38:231
121550370irq/30-eth0_g0_1221-21kworker/1:209:57:151
121450370irq/29-eth0_g0_1954-21runrttasks07:56:390
121450370irq/29-eth0_g0_13-21kworker/0:110:40:440
121450370irq/29-eth0_g0_12133-21unixbench_singl08:50:170
121370ksoftirqd/1121550irq/30-eth0_g0_08:12:450
1926199361cyclictest5572-21sort08:25:091
121550360irq/30-eth0_g0_1221-21kworker/1:209:41:011
121550360irq/30-eth0_g0_0-21swapper/111:04:571
121550360irq/30-eth0_g0_0-21swapper/108:40:091
121450360irq/29-eth0_g0_22473-21unixbench_singl07:20:120
121450360irq/29-eth0_g0_1954-21runrttasks08:17:100
121450360irq/29-eth0_g0_19428-21sed07:10:080
19261993529cyclictest1954-21runrttasks07:55:401
1926199352cyclictest31648-21df08:00:041
1926199351cyclictest14540-21grep09:00:121
121550350irq/30-eth0_g0_24654-21ntp_states07:30:141
121450350irq/29-eth0_g0_9655-21grep08:40:160
121450350irq/29-eth0_g0_8077-21ls08:35:110
121450350irq/29-eth0_g0_7220-21head08:30:180
121450350irq/29-eth0_g0_6006-21unixbench_singl08:25:150
121450350irq/29-eth0_g0_25870-21grep07:35:120
121450350irq/29-eth0_g0_20640-21df07:15:060
121450350irq/29-eth0_g0_12882-21/usr/sbin/munin08:55:070
121450350irq/29-eth0_g0_0-21swapper/009:00:040
121350ksoftirqd/118119-21/usr/sbin/munin07:05:051
1926199342cyclictest1571-21cat08:09:541
1926199341cyclictest21949-21taskset07:20:031
121450340irq/29-eth0_g0_29676-21grep07:50:170
121450340irq/29-eth0_g0_29676-21grep07:50:170
121450340irq/29-eth0_g0_0-21swapper/007:26:130
121550330irq/30-eth0_g0_19680-21missed_timers07:10:121
1926199320cyclictest0-21swapper/108:15:541
121450320irq/29-eth0_g0_0-21swapper/007:30:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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