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2026-04-01 - 19:39

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
Click here to display the system's profile data or here to proceed to next system.
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 Wed Apr 01, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
964421260sleep0121750irq/30-eth0_g0_11:14:470
1211000ksoftirqd/1121750irq/30-eth0_g0_09:41:101
121810ksoftirqd/1121650irq/29-eth0_g0_10:14:560
121780ksoftirqd/1121750irq/30-eth0_g0_09:27:011
169912720sleep1121750irq/30-eth0_g0_07:19:421
221522600sleep1121650irq/29-eth0_g0_09:51:361
8742590sleep1121750irq/30-eth0_g0_08:25:011
65902570sleep0121650irq/29-eth0_g0_11:00:040
121550ksoftirqd/1268952sleep012:24:550
121550ksoftirqd/1268952sleep012:24:550
121520ksoftirqd/1121750irq/30-eth0_g0_12:27:501
121520ksoftirqd/1121750irq/30-eth0_g0_12:27:501
211282510sleep0121650irq/29-eth0_g0_07:35:010
121750490irq/30-eth0_g0_14063-21unixbench_multi07:05:050
121480ksoftirqd/1121750irq/30-eth0_g0_12:35:361
121480ksoftirqd/1121750irq/30-eth0_g0_09:13:221
121650470irq/29-eth0_g0_1875-21runrttasks11:34:410
121470ksoftirqd/1121750irq/30-eth0_g0_11:57:311
121470ksoftirqd/1121750irq/30-eth0_g0_10:41:061
121460ksoftirqd/1121750irq/30-eth0_g0_12:30:511
121460ksoftirqd/1121750irq/30-eth0_g0_10:28:251
121460ksoftirqd/1121650irq/29-eth0_g0_12:23:551
121450ksoftirqd/1121750irq/30-eth0_g0_10:14:031
121450ksoftirqd/1121750irq/30-eth0_g0_10:14:031
121450ksoftirqd/1121750irq/30-eth0_g0_09:59:251
121450ksoftirqd/1121750irq/30-eth0_g0_09:37:581
121450ksoftirqd/1121650irq/29-eth0_g0_10:32:211
121750440irq/30-eth0_g0_1219-21kworker/1:212:18:021
121750440irq/30-eth0_g0_1219-21kworker/1:209:33:421
121750440irq/30-eth0_g0_1219-21kworker/1:209:23:201
121440ksoftirqd/1121650irq/29-eth0_g0_11:02:301
121750430irq/30-eth0_g0_1219-21kworker/1:210:56:461
121750430irq/30-eth0_g0_1219-21kworker/1:209:17:101
121650430irq/29-eth0_g0_31ksoftirqd/011:25:020
121750410irq/30-eth0_g0_31ksoftirqd/012:21:140
121650410irq/29-eth0_g0_31ksoftirqd/010:39:580
121650410irq/29-eth0_g0_31ksoftirqd/010:37:200
121650410irq/29-eth0_g0_13-21kworker/0:111:55:130
121650410irq/29-eth0_g0_13-21kworker/0:111:08:590
121650410irq/29-eth0_g0_13-21kworker/0:109:34:550
121650410irq/29-eth0_g0_0-21swapper/010:57:490
121650410irq/29-eth0_g0_0-21swapper/007:15:010
121410ksoftirqd/1121750irq/30-eth0_g0_12:34:150
121410ksoftirqd/1121750irq/30-eth0_g0_11:47:280
121750400irq/30-eth0_g0_1219-21kworker/1:210:24:201
121650400irq/29-eth0_g0_13-21kworker/0:112:37:430
121650400irq/29-eth0_g0_13-21kworker/0:110:50:490
121650400irq/29-eth0_g0_13-21kworker/0:109:54:120
121650400irq/29-eth0_g0_13-21kworker/0:109:30:030
121650400irq/29-eth0_g0_13-21kworker/0:109:21:350
121650400irq/29-eth0_g0_121ksoftirqd/111:36:300
121650400irq/29-eth0_g0_121ksoftirqd/110:44:590
121650400irq/29-eth0_g0_121ksoftirqd/107:58:341
121400ksoftirqd/1121750irq/30-eth0_g0_12:04:480
121400ksoftirqd/1121650irq/29-eth0_g0_10:49:211
1456399392cyclictest20803-21df07:34:561
1456399392cyclictest18444-21iostat11:49:581
1456399392cyclictest18444-21iostat11:49:581
1456399391cyclictest10351-21grep11:15:041
121750390irq/30-eth0_g0_121ksoftirqd/111:04:501
121650390irq/29-eth0_g0_13-21kworker/0:112:12:450
121650390irq/29-eth0_g0_13-21kworker/0:112:12:450
121650390irq/29-eth0_g0_13-21kworker/0:110:31:320
121650390irq/29-eth0_g0_13-21kworker/0:110:10:560
121650390irq/29-eth0_g0_13-21kworker/0:110:10:560
121650390irq/29-eth0_g0_13-21kworker/0:110:04:430
121650390irq/29-eth0_g0_13-21kworker/0:109:46:550
121650390irq/29-eth0_g0_13-21kworker/0:109:41:030
121650390irq/29-eth0_g0_13-21kworker/0:109:14:120
121390ksoftirqd/1121650irq/29-eth0_g0_11:09:581
1456399382cyclictest6025-21grep08:45:041
1456399381cyclictest27505-21sed08:00:051
1456399381cyclictest11413-21diskmemload10:00:031
121750380irq/30-eth0_g0_210912sleep112:00:011
121750380irq/30-eth0_g0_13-21kworker/0:111:50:050
121750380irq/30-eth0_g0_13-21kworker/0:111:50:050
121750380irq/30-eth0_g0_1219-21kworker/1:212:04:591
121750380irq/30-eth0_g0_1219-21kworker/1:211:40:491
121750380irq/30-eth0_g0_1219-21kworker/1:211:40:491
121750380irq/30-eth0_g0_1219-21kworker/1:210:38:331
121750380irq/30-eth0_g0_121ksoftirqd/110:14:441
121750380irq/30-eth0_g0_0-21swapper/111:31:491
121750380irq/30-eth0_g0_0-21swapper/111:20:291
121650380irq/29-eth0_g0_31ksoftirqd/009:28:380
121650380irq/29-eth0_g0_20703-21latency_hist07:34:430
121650380irq/29-eth0_g0_17548-21proc_pri07:20:020
121650380irq/29-eth0_g0_13-21kworker/0:111:39:560
121650380irq/29-eth0_g0_13-21kworker/0:111:39:560
121650380irq/29-eth0_g0_13-21kworker/0:111:19:520
121650380irq/29-eth0_g0_13-21kworker/0:111:13:030
121650380irq/29-eth0_g0_13-21kworker/0:110:20:100
121650380irq/29-eth0_g0_13-21kworker/0:110:07:340
121650380irq/29-eth0_g0_13-21kworker/0:109:15:040
121380ksoftirqd/1121750irq/30-eth0_g0_09:09:131
121380ksoftirqd/1121650irq/29-eth0_g0_08:17:171
121380ksoftirqd/1121650irq/29-eth0_g0_08:17:171
1456399371cyclictest32105-21ntp_states08:20:011
1456399371cyclictest32105-21ntp_states08:20:011
1456399371cyclictest29263-21cpu08:09:531
1456399371cyclictest25491-21taskset10:05:031
1456399371cyclictest246462sleep107:49:571
1456399371cyclictest20651-21taskset09:45:061
121750370irq/30-eth0_g0_13652-21iostat07:04:581
121750370irq/30-eth0_g0_1219-21kworker/1:211:26:141
121750370irq/30-eth0_g0_121ksoftirqd/112:14:081
121750370irq/30-eth0_g0_121ksoftirqd/112:14:081
121750370irq/30-eth0_g0_121ksoftirqd/111:39:351
121650370irq/29-eth0_g0_769-21memory08:24:590
121650370irq/29-eth0_g0_1875-21runrttasks09:00:530
121650370irq/29-eth0_g0_1875-21runrttasks08:45:240
121650370irq/29-eth0_g0_1875-21runrttasks07:54:480
121650370irq/29-eth0_g0_13-21kworker/0:112:03:460
121650370irq/29-eth0_g0_13-21kworker/0:110:24:500
1456399361cyclictest3855-21missed_timers10:49:581
1456399361cyclictest28173-21sed08:04:561
1456399361cyclictest1875-21runrttasks07:43:091
1456399361cyclictest1875-21runrttasks07:43:091
1456399361cyclictest18243-21grep07:24:431
121750360irq/30-eth0_g0_1219-21kworker/1:211:47:181
121650360irq/29-eth0_g0_7288-21unixbench_singl08:50:040
121650360irq/29-eth0_g0_28570-21rt-features08:05:040
121650360irq/29-eth0_g0_27522-21unixbench_singl08:00:050
121650360irq/29-eth0_g0_24557-21iostat12:14:570
121650360irq/29-eth0_g0_1875-21runrttasks08:58:010
121650360irq/29-eth0_g0_1875-21runrttasks08:32:230
121650360irq/29-eth0_g0_13-21kworker/0:109:55:210
14563993530cyclictest18850-21sendmail_mailst07:25:031
1456399352cyclictest19661-21df_abs07:29:551
1456399351cyclictest6748-21sed08:49:541
1456399351cyclictest2122-21ntp_offset08:30:011
1456399351cyclictest1875-21runrttasks07:46:181
121750350irq/30-eth0_g0_44042chrt08:39:551
121750350irq/30-eth0_g0_44042chrt08:39:551
121650350irq/29-eth0_g0_5043-21chrt08:41:430
121650350irq/29-eth0_g0_5043-21chrt08:41:430
121650350irq/29-eth0_g0_3599-21unixbench_multi08:35:050
121650350irq/29-eth0_g0_29283-21cpu08:09:530
121650350irq/29-eth0_g0_1875-21runrttasks09:05:020
121650350irq/29-eth0_g0_1875-21runrttasks08:20:390
121650350irq/29-eth0_g0_1875-21runrttasks08:20:390
121650350irq/29-eth0_g0_18460-21df_inode07:24:550
1456399342cyclictest8104-21cat08:54:581
1456399341cyclictest3415-21ps08:35:021
1456399341cyclictest14921-21taskset07:09:581
121650340irq/29-eth0_g0_31ksoftirqd/008:19:420
121650340irq/29-eth0_g0_31ksoftirqd/008:19:420
121650340irq/29-eth0_g0_22112-21df_inode07:39:540
121650340irq/29-eth0_g0_22112-21df_inode07:39:540
121650340irq/29-eth0_g0_14816-21entropy07:09:560
1456399331cyclictest0-21swapper/109:00:001
121650330irq/29-eth0_g0_24740-21netstat07:49:580
121650330irq/29-eth0_g0_0-21swapper/007:45:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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