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2024-10-15 - 01:24

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 Mon Oct 14, 2024 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2140321620sleep1121650irq/29-eth0_g0_09:11:151
703521540sleep1121650irq/29-eth0_g0_12:39:471
758321440sleep0121650irq/29-eth0_g0_10:28:570
121980ksoftirqd/1121750irq/30-eth0_g0_12:23:231
121960ksoftirqd/1121750irq/30-eth0_g0_07:26:491
314912940sleep0121650irq/29-eth0_g0_09:54:380
310482910sleep1121750irq/30-eth0_g0_09:50:111
121900ksoftirqd/1121750irq/30-eth0_g0_11:58:221
121830ksoftirqd/1121750irq/30-eth0_g0_10:45:050
121830ksoftirqd/1121750irq/30-eth0_g0_10:45:050
209752800sleep0121650irq/29-eth0_g0_11:23:120
121790ksoftirqd/1121750irq/30-eth0_g0_11:47:501
121790ksoftirqd/1121750irq/30-eth0_g0_11:47:501
125002720sleep1121750irq/30-eth0_g0_10:49:141
125002720sleep1121750irq/30-eth0_g0_10:49:141
254802710sleep0121750irq/30-eth0_g0_09:29:590
12872690sleep0121750irq/30-eth0_g0_10:02:040
284592640sleep1121750irq/30-eth0_g0_09:40:091
208482600sleep1121650irq/29-eth0_g0_11:21:401
159292600chrt121750irq/30-eth0_g0_11:01:221
247002590sleep1121750irq/30-eth0_g0_11:38:491
149162590sleep0121650irq/29-eth0_g0_10:58:520
121550ksoftirqd/1121750irq/30-eth0_g0_09:49:491
63462520sleep1121650irq/29-eth0_g0_10:23:471
264972520sleep1121750irq/30-eth0_g0_07:20:071
112622520sleep1121750irq/30-eth0_g0_10:44:031
112622520sleep1121750irq/30-eth0_g0_10:44:031
134282510sleep0121650irq/29-eth0_g0_10:50:450
55002500sleep0121650irq/29-eth0_g0_12:31:080
121500ksoftirqd/1121750irq/30-eth0_g0_12:02:231
121500ksoftirqd/1121750irq/30-eth0_g0_09:28:381
161422480sleep0121650irq/29-eth0_g0_11:03:560
121480ksoftirqd/1121750irq/30-eth0_g0_08:00:021
104802480sleep0121650irq/29-eth0_g0_08:27:170
36662470sleep1121650irq/29-eth0_g0_10:11:041
245662470sleep0121650irq/29-eth0_g0_11:37:150
234092470sleep0121750irq/30-eth0_g0_11:33:040
284052460sleep0121750irq/30-eth0_g0_11:54:140
121460ksoftirqd/1121750irq/30-eth0_g0_10:02:531
121460ksoftirqd/1121650irq/29-eth0_g0_11:55:490
121650450irq/29-eth0_g0_15131-21unixbench_singl08:45:100
121450ksoftirqd/1121650irq/29-eth0_g0_08:38:291
121450ksoftirqd/1121650irq/29-eth0_g0_07:52:341
121650440irq/29-eth0_g0_19129-21taskset11:15:040
121650440irq/29-eth0_g0_19129-21taskset11:15:040
121650440irq/29-eth0_g0_1814-21runrttasks07:24:200
121440ksoftirqd/1121750irq/30-eth0_g0_10:32:101
121440ksoftirqd/1121650irq/29-eth0_g0_08:19:501
317832430sleep0121650irq/29-eth0_g0_12:05:490
121650430irq/29-eth0_g0_1814-21runrttasks07:33:390
121750420irq/30-eth0_g0_470-21kworker/1:110:53:151
121750420irq/30-eth0_g0_470-21kworker/1:110:38:541
121420ksoftirqd/1121650irq/29-eth0_g0_10:16:211
121420ksoftirqd/1121650irq/29-eth0_g0_10:05:101
185372410sleep0121650irq/29-eth0_g0_11:13:190
121650410irq/29-eth0_g0_4565-21runrttasks12:29:300
121650410irq/29-eth0_g0_22273-21proc_pri09:15:090
121650410irq/29-eth0_g0_13-21kworker/0:112:13:470
121650410irq/29-eth0_g0_13-21kworker/0:111:05:230
68832400chrt121650irq/29-eth0_g0_12:37:590
2355999402cyclictest15626-21latency_hist08:49:501
121750400irq/30-eth0_g0_470-21kworker/1:112:06:201
121750400irq/30-eth0_g0_18544-21taskset11:13:241
121750400irq/30-eth0_g0_121ksoftirqd/109:32:391
121650400irq/29-eth0_g0_31ksoftirqd/012:22:570
121650400irq/29-eth0_g0_31ksoftirqd/011:25:000
121650400irq/29-eth0_g0_31ksoftirqd/008:35:030
121650400irq/29-eth0_g0_13-21kworker/0:111:48:010
121650400irq/29-eth0_g0_13-21kworker/0:111:48:010
121650400irq/29-eth0_g0_13-21kworker/0:110:40:070
121650400irq/29-eth0_g0_13-21kworker/0:110:40:070
121650400irq/29-eth0_g0_13-21kworker/0:109:45:040
121650400irq/29-eth0_g0_0-21swapper/007:06:290
121400ksoftirqd/1121750irq/30-eth0_g0_09:24:500
121400ksoftirqd/1121650irq/29-eth0_g0_10:33:120
37392390sleep0121650irq/29-eth0_g0_10:11:550
121750390irq/30-eth0_g0_470-21kworker/1:112:16:121
121750390irq/30-eth0_g0_470-21kworker/1:112:16:121
121750390irq/30-eth0_g0_470-21kworker/1:111:05:241
121650390irq/29-eth0_g0_31ksoftirqd/010:15:060
121650390irq/29-eth0_g0_13-21kworker/0:111:40:430
121650390irq/29-eth0_g0_13-21kworker/0:109:38:270
121650390irq/29-eth0_g0_121ksoftirqd/111:17:301
121650390irq/29-eth0_g0_121ksoftirqd/111:17:301
121650390irq/29-eth0_g0_121ksoftirqd/109:40:210
121390ksoftirqd/1121750irq/30-eth0_g0_10:39:370
121390ksoftirqd/1121750irq/30-eth0_g0_09:58:500
121390ksoftirqd/1121750irq/30-eth0_g0_08:55:510
121390ksoftirqd/1121750irq/30-eth0_g0_08:52:350
121390ksoftirqd/1121750irq/30-eth0_g0_08:32:240
121390ksoftirqd/1121750irq/30-eth0_g0_08:12:380
121390ksoftirqd/1121750irq/30-eth0_g0_08:09:490
121390ksoftirqd/1121750irq/30-eth0_g0_07:17:470
121390ksoftirqd/1121750irq/30-eth0_g0_07:10:160
121390ksoftirqd/1121650irq/29-eth0_g0_12:27:281
121390ksoftirqd/1121650irq/29-eth0_g0_10:59:491
121390ksoftirqd/1121650irq/29-eth0_g0_07:30:071
121750380irq/30-eth0_g0_470-21kworker/1:109:55:571
121750380irq/30-eth0_g0_22539-21df_abs07:05:011
121750380irq/30-eth0_g0_121ksoftirqd/109:17:581
121750380irq/30-eth0_g0_121ksoftirqd/108:41:131
121650380irq/29-eth0_g0_20392sleep012:18:330
121650380irq/29-eth0_g0_20392sleep012:18:330
121650380irq/29-eth0_g0_1814-21runrttasks08:22:590
121380ksoftirqd/1121750irq/30-eth0_g0_12:04:320
121380ksoftirqd/1121750irq/30-eth0_g0_09:10:010
2355999372cyclictest28012-21grep11:50:091
2355999371cyclictest23110-21grep11:30:121
121750370irq/30-eth0_g0_470-21kworker/1:112:30:021
121750370irq/30-eth0_g0_470-21kworker/1:111:41:381
121750370irq/30-eth0_g0_470-21kworker/1:109:21:041
121750370irq/30-eth0_g0_19978-21unixbench_multi09:05:091
121750370irq/30-eth0_g0_121ksoftirqd/112:12:071
121750370irq/30-eth0_g0_0-21swapper/110:27:571
121650370irq/29-eth0_g0_20546-21latency_hist09:09:500
121650370irq/29-eth0_g0_1814-21runrttasks07:35:020
121650370irq/29-eth0_g0_13-21kworker/0:110:23:530
121370ksoftirqd/1121650irq/29-eth0_g0_07:37:161
2355999362cyclictest19275-21latency_hist09:04:501
2355999362cyclictest10152-21sort08:25:101
2355999361cyclictest9006-21grep08:20:111
2355999361cyclictest3321-21taskset07:59:181
2355999361cyclictest11490-21grep08:30:111
121750360irq/30-eth0_g0_4841-21/usr/sbin/munin08:05:021
121750360irq/30-eth0_g0_470-21kworker/1:111:24:581
121750360irq/30-eth0_g0_470-21kworker/1:109:39:061
121650360irq/29-eth0_g0_18529-21grep09:00:080
121650360irq/29-eth0_g0_1814-21runrttasks07:42:550
121650360irq/29-eth0_g0_1814-21runrttasks07:25:420
121650360irq/29-eth0_g0_13-21kworker/0:109:27:060
121650360irq/29-eth0_g0_0-21swapper/010:05:190
121360ksoftirqd/1121750irq/30-eth0_g0_07:56:050
121360ksoftirqd/1121750irq/30-eth0_g0_07:47:410
23559993530cyclictest23650-21/usr/sbin/munin07:10:091
2355999352cyclictest31622-21cat07:40:381
121650350irq/29-eth0_g0_4168-21unixbench_singl08:00:120
121650350irq/29-eth0_g0_1814-21runrttasks08:19:040
121650350irq/29-eth0_g0_1814-21runrttasks07:53:140
2355999341cyclictest60582sleep108:10:021
2355999341cyclictest15926-21seq08:50:041
121650340irq/29-eth0_g0_17881-21runrttasks08:58:011
2355999331cyclictest0-21swapper/107:45:061
121750330irq/30-eth0_g0_24874-21/usr/sbin/munin07:15:101
121650330irq/29-eth0_g0_1814-21runrttasks08:42:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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