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2025-04-03 - 11:13

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 Wed Apr 02, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121520ksoftirqd/1463250irq/30-eth0_g0_11:56:131
121520ksoftirqd/1463250irq/30-eth0_g0_11:52:411
121520ksoftirqd/1463250irq/30-eth0_g0_10:06:421
121500ksoftirqd/1463250irq/30-eth0_g0_10:20:401
121480ksoftirqd/1463250irq/30-eth0_g0_11:27:201
121480ksoftirqd/1463150irq/29-eth0_g0_11:05:440
121480ksoftirqd/1463150irq/29-eth0_g0_11:05:440
121460ksoftirqd/1463250irq/30-eth0_g0_09:12:481
121460ksoftirqd/1463150irq/29-eth0_g0_10:09:410
463150450irq/29-eth0_g0_14734-21unixbench_singl11:10:010
121450ksoftirqd/1463250irq/30-eth0_g0_11:43:091
121450ksoftirqd/1463250irq/30-eth0_g0_11:39:221
463250440irq/30-eth0_g0_4629-21kworker/1:012:20:571
463150440irq/29-eth0_g0_31ksoftirqd/009:10:030
463150440irq/29-eth0_g0_11896-21unixbench_singl07:05:050
463150440irq/29-eth0_g0_0-21swapper/009:09:430
121440ksoftirqd/1463150irq/29-eth0_g0_12:28:360
121440ksoftirqd/1463150irq/29-eth0_g0_11:59:581
121440ksoftirqd/1463150irq/29-eth0_g0_11:22:150
463250430irq/30-eth0_g0_4629-21kworker/1:010:24:431
121430ksoftirqd/1463150irq/29-eth0_g0_12:20:000
121430ksoftirqd/1463150irq/29-eth0_g0_09:57:240
463250420irq/30-eth0_g0_4629-21kworker/1:012:38:241
463150420irq/29-eth0_g0_13-21kworker/0:110:41:590
463250410irq/30-eth0_g0_121ksoftirqd/110:54:371
463150410irq/29-eth0_g0_31ksoftirqd/009:50:000
463150410irq/29-eth0_g0_13-21kworker/0:111:16:020
463150410irq/29-eth0_g0_121ksoftirqd/110:11:240
463150410irq/29-eth0_g0_121ksoftirqd/109:15:570
121410ksoftirqd/1463150irq/29-eth0_g0_10:57:330
121410ksoftirqd/1463150irq/29-eth0_g0_09:05:031
463250400irq/30-eth0_g0_4629-21kworker/1:009:46:061
463150400irq/29-eth0_g0_31ksoftirqd/012:34:370
463150400irq/29-eth0_g0_13-21kworker/0:111:50:360
463150400irq/29-eth0_g0_13-21kworker/0:111:39:210
463150400irq/29-eth0_g0_121ksoftirqd/112:09:270
121400ksoftirqd/1463150irq/29-eth0_g0_11:02:261
121400ksoftirqd/1463150irq/29-eth0_g0_11:02:261
11967994030cyclictest19756-21proc_pri07:55:051
1196799401cyclictest12471-21/usr/sbin/munin07:10:041
463250390irq/30-eth0_g0_4629-21kworker/1:009:58:481
463250390irq/30-eth0_g0_121ksoftirqd/109:32:501
463150390irq/29-eth0_g0_7851-21sendmail_mailqu10:15:030
463150390irq/29-eth0_g0_21486-21unixbench_multi12:10:000
463150390irq/29-eth0_g0_13-21kworker/0:111:42:440
463150390irq/29-eth0_g0_13-21kworker/0:110:26:470
463150390irq/29-eth0_g0_13-21kworker/0:110:20:250
463150390irq/29-eth0_g0_13-21kworker/0:109:36:260
463150390irq/29-eth0_g0_13-21kworker/0:109:26:020
121390ksoftirqd/1463250irq/30-eth0_g0_09:49:050
121390ksoftirqd/1463150irq/29-eth0_g0_10:16:211
1196799391cyclictest31339-21diskmemload11:49:421
463250380irq/30-eth0_g0_6982-21processes10:09:591
463250380irq/30-eth0_g0_4629-21kworker/1:012:05:351
463250380irq/30-eth0_g0_4629-21kworker/1:010:45:421
463250380irq/30-eth0_g0_4629-21kworker/1:010:31:071
463250380irq/30-eth0_g0_4629-21kworker/1:010:02:381
463250380irq/30-eth0_g0_4629-21kworker/1:009:53:511
463250380irq/30-eth0_g0_4629-21kworker/1:009:27:011
463250380irq/30-eth0_g0_4629-21kworker/1:009:17:311
463150380irq/29-eth0_g0_19307-21/usr/sbin/munin07:54:560
463150380irq/29-eth0_g0_13-21kworker/0:112:03:340
463150380irq/29-eth0_g0_13-21kworker/0:111:02:550
463150380irq/29-eth0_g0_13-21kworker/0:111:02:550
463150380irq/29-eth0_g0_13-21kworker/0:110:53:020
463150380irq/29-eth0_g0_13-21kworker/0:110:04:410
1196799381cyclictest22362-21grep12:15:051
463250370irq/30-eth0_g0_4629-21kworker/1:012:29:581
463250370irq/30-eth0_g0_4629-21kworker/1:011:33:591
463250370irq/30-eth0_g0_4629-21kworker/1:009:23:091
463250370irq/30-eth0_g0_121ksoftirqd/109:41:421
463250370irq/30-eth0_g0_0-21swapper/111:15:251
463250370irq/30-eth0_g0_0-21swapper/111:12:061
463150370irq/29-eth0_g0_31ksoftirqd/012:35:350
463150370irq/29-eth0_g0_18629-21df_abs07:49:560
463150370irq/29-eth0_g0_18429-21latency_hist07:49:430
463150370irq/29-eth0_g0_17511-21tail07:40:050
463150370irq/29-eth0_g0_13-21kworker/0:111:26:570
463150370irq/29-eth0_g0_13-21kworker/0:110:29:570
463150370irq/29-eth0_g0_13-21kworker/0:109:33:500
463150370irq/29-eth0_g0_121ksoftirqd/110:55:491
463150370irq/29-eth0_g0_121ksoftirqd/110:35:270
1196799372cyclictest16305-21grep11:20:041
1196799372cyclictest14990-21wc07:25:011
1196799372cyclictest14990-21wc07:25:011
1196799371cyclictest29638-21unixbench_multi08:55:101
1196799371cyclictest2954-21grep09:35:101
463250360irq/30-eth0_g0_4629-21kworker/1:011:06:511
463250360irq/30-eth0_g0_4629-21kworker/1:011:06:511
463250360irq/30-eth0_g0_4629-21kworker/1:010:38:431
463250360irq/30-eth0_g0_11903-21grep07:05:051
463150360irq/29-eth0_g0_25333-21ntpdc08:30:030
463150360irq/29-eth0_g0_20360-21sort08:00:000
463150360irq/29-eth0_g0_16745-21unixbench_singl07:35:040
463150360irq/29-eth0_g0_13-21kworker/0:112:15:340
463150360irq/29-eth0_g0_13-21kworker/0:111:55:200
463150360irq/29-eth0_g0_13-21kworker/0:111:44:490
463150360irq/29-eth0_g0_13-21kworker/0:111:31:560
463150360irq/29-eth0_g0_13-21kworker/0:110:44:580
463150360irq/29-eth0_g0_13-21kworker/0:109:40:010
463150360irq/29-eth0_g0_13-21kworker/0:109:20:020
463150360irq/29-eth0_g0_121ksoftirqd/112:12:471
1196799362cyclictest20740-21tail08:00:081
1196799362cyclictest11038-21ntp_states10:40:041
1196799361cyclictest25493-21awk08:30:061
1196799361cyclictest22108-21ntp_kernel_pll_08:10:051
1196799361cyclictest16706-21unixbench_multi07:35:041
463250350irq/30-eth0_g0_4629-21kworker/1:012:25:121
463150350irq/29-eth0_g0_31ksoftirqd/007:29:430
463150350irq/29-eth0_g0_31ksoftirqd/007:29:430
463150350irq/29-eth0_g0_22240-21processes08:10:080
463150350irq/29-eth0_g0_18140-21proc_pri07:45:031
463150350irq/29-eth0_g0_15908-21unixbench_multi07:30:090
463150350irq/29-eth0_g0_14030-21ntpdc07:20:000
463150350irq/29-eth0_g0_12492-21proc_pri07:10:040
463150350irq/29-eth0_g0_0-21swapper/008:49:570
1196799351cyclictest30341-21sendmail_mailtr09:00:031
1196799351cyclictest21456-21sendmail_mailst08:05:031
463250340irq/30-eth0_g0_2079-21lldpd08:41:041
463150340irq/29-eth0_g0_30363-21timerandwakeup09:00:040
463150340irq/29-eth0_g0_29362-21ntpdc08:55:050
463150340irq/29-eth0_g0_26701-21df_abs08:39:530
463150340irq/29-eth0_g0_23157-21sed08:15:040
463150340irq/29-eth0_g0_13591-21latency_hist07:19:430
1196799341cyclictest15943-21head07:30:091
463250330irq/30-eth0_g0_28856-21unixbench_singl08:50:051
463150330irq/29-eth0_g0_26290-21sendmail_mailqu08:35:040
463150330irq/29-eth0_g0_21593-21unixbench_singl08:05:050
463150330irq/29-eth0_g0_0-21swapper/008:24:590
463150330irq/29-eth0_g0_0-21swapper/008:20:020
1196799331cyclictest18568-21sed07:49:561
1196799331cyclictest0-21swapper/108:25:041
463250320irq/30-eth0_g0_27829-21proc_pri08:45:031
463250320irq/30-eth0_g0_0-21swapper/107:40:031
463150320irq/29-eth0_g0_1196799cyclictest07:19:551
463250310irq/30-eth0_g0_26150-21grep08:35:011
463150310irq/29-eth0_g0_0-21swapper/008:45:010
1196799311cyclictest23044-21ps08:15:031
463250300irq/30-eth0_g0_13213-21netstat07:14:591
463250290irq/30-eth0_g0_23919-21cat08:20:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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