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2026-07-05 - 02:22

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 376 highest latencies:
System rack3slot5s.osadl.org (updated Sun Jul 05, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121810ksoftirqd/1121750irq/30-eth0_g0_20:24:090
29102700sleep0121650irq/29-eth0_g0_22:56:230
176322600sleep0121650irq/29-eth0_g0_19:31:020
216792540sleep1121750irq/30-eth0_g0_21:58:401
121650510irq/29-eth0_g0_31ksoftirqd/023:18:390
119182490sleep0121650irq/29-eth0_g0_23:33:310
121480ksoftirqd/1121750irq/30-eth0_g0_21:13:301
322492470sleep0121650irq/29-eth0_g0_22:43:290
121750450irq/30-eth0_g0_187712chrt00:00:381
121650450irq/29-eth0_g0_13-21kworker/0:121:54:160
121450ksoftirqd/1121750irq/30-eth0_g0_00:34:001
121450ksoftirqd/1121650irq/29-eth0_g0_19:16:161
288132440sleep1121750irq/30-eth0_g0_22:28:381
172512440sleep1121750irq/30-eth0_g0_23:53:381
172512440sleep1121750irq/30-eth0_g0_23:53:381
121750440irq/30-eth0_g0_317792sleep122:40:511
121750440irq/30-eth0_g0_121ksoftirqd/123:09:201
121750440irq/30-eth0_g0_121ksoftirqd/123:09:201
121440ksoftirqd/1121750irq/30-eth0_g0_00:31:051
121750430irq/30-eth0_g0_1219-21kworker/1:223:13:301
121750430irq/30-eth0_g0_1219-21kworker/1:223:00:101
121750430irq/30-eth0_g0_1219-21kworker/1:200:17:161
121750430irq/30-eth0_g0_121ksoftirqd/122:43:401
121650430irq/29-eth0_g0_31ksoftirqd/021:42:380
121650430irq/29-eth0_g0_31ksoftirqd/021:42:380
121430ksoftirqd/1121750irq/30-eth0_g0_22:07:051
121430ksoftirqd/1121750irq/30-eth0_g0_21:26:460
121750420irq/30-eth0_g0_1219-21kworker/1:223:50:331
121750420irq/30-eth0_g0_121ksoftirqd/121:43:210
121650420irq/29-eth0_g0_13847-21df_abs21:28:290
121420ksoftirqd/1121650irq/29-eth0_g0_19:23:421
280022410sleep0121750irq/30-eth0_g0_22:24:380
121750410irq/30-eth0_g0_121ksoftirqd/100:24:481
121650410irq/29-eth0_g0_13-21kworker/0:121:13:290
121650410irq/29-eth0_g0_13-21kworker/0:100:23:090
121410ksoftirqd/1121650irq/29-eth0_g0_22:53:351
121410ksoftirqd/1121650irq/29-eth0_g0_19:33:321
282102400sleep1121650irq/29-eth0_g0_22:27:041
121750400irq/30-eth0_g0_0-21swapper/122:10:441
121650400irq/29-eth0_g0_31ksoftirqd/023:39:080
121650400irq/29-eth0_g0_31ksoftirqd/000:34:440
121650400irq/29-eth0_g0_1964-21runrttasks23:03:400
121650400irq/29-eth0_g0_1964-21runrttasks20:02:450
121650400irq/29-eth0_g0_17271-21unixbench_multi23:53:390
121650400irq/29-eth0_g0_17271-21unixbench_multi23:53:390
121650400irq/29-eth0_g0_13-21kworker/0:123:51:570
121650400irq/29-eth0_g0_13-21kworker/0:123:44:460
121650400irq/29-eth0_g0_13-21kworker/0:123:23:320
121650400irq/29-eth0_g0_13-21kworker/0:123:01:110
121650400irq/29-eth0_g0_13-21kworker/0:122:29:400
121650400irq/29-eth0_g0_13-21kworker/0:122:22:180
121650400irq/29-eth0_g0_13-21kworker/0:122:16:560
121650400irq/29-eth0_g0_13-21kworker/0:121:48:350
121650400irq/29-eth0_g0_13-21kworker/0:121:37:380
121650400irq/29-eth0_g0_13-21kworker/0:121:21:260
121650400irq/29-eth0_g0_13-21kworker/0:100:16:530
121650400irq/29-eth0_g0_13-21kworker/0:100:05:090
121650400irq/29-eth0_g0_121ksoftirqd/122:33:360
121650400irq/29-eth0_g0_10615-21runrttasks19:03:280
121400ksoftirqd/1121750irq/30-eth0_g0_22:02:440
121400ksoftirqd/1121750irq/30-eth0_g0_00:29:350
121400ksoftirqd/1121650irq/29-eth0_g0_21:53:181
121400ksoftirqd/1121650irq/29-eth0_g0_21:38:411
121400ksoftirqd/1121650irq/29-eth0_g0_21:38:411
1169699401cyclictest1644-21runrttasks22:51:091
121750390irq/30-eth0_g0_2923-21latency20:43:311
121750390irq/30-eth0_g0_28961-21/usr/sbin/munin20:18:371
121750390irq/30-eth0_g0_1219-21kworker/1:222:35:121
121750390irq/30-eth0_g0_1219-21kworker/1:221:48:121
121750390irq/30-eth0_g0_1219-21kworker/1:221:33:051
121750390irq/30-eth0_g0_1219-21kworker/1:221:13:001
121750390irq/30-eth0_g0_121ksoftirqd/123:19:591
121750390irq/30-eth0_g0_121ksoftirqd/122:18:211
121750390irq/30-eth0_g0_121ksoftirqd/121:21:501
121750390irq/30-eth0_g0_121ksoftirqd/100:19:131
121750390irq/30-eth0_g0_121ksoftirqd/100:07:151
121750390irq/30-eth0_g0_0-21swapper/123:36:001
121650390irq/29-eth0_g0_13-21kworker/0:123:13:390
121650390irq/29-eth0_g0_13-21kworker/0:122:07:540
121650390irq/29-eth0_g0_13-21kworker/0:100:02:290
121650390irq/29-eth0_g0_0-21swapper/020:53:330
121390ksoftirqd/1121750irq/30-eth0_g0_23:33:020
121390ksoftirqd/1121750irq/30-eth0_g0_22:53:030
121390ksoftirqd/1121750irq/30-eth0_g0_22:42:440
121390ksoftirqd/1121750irq/30-eth0_g0_21:11:080
121390ksoftirqd/1121750irq/30-eth0_g0_20:14:330
121390ksoftirqd/1121750irq/30-eth0_g0_00:13:020
121390ksoftirqd/1121650irq/29-eth0_g0_22:10:040
121390ksoftirqd/1121650irq/29-eth0_g0_21:34:101
121390ksoftirqd/1121650irq/29-eth0_g0_20:34:071
121390ksoftirqd/1121650irq/29-eth0_g0_20:34:071
1169699391cyclictest20381-21/usr/sbin/munin00:08:281
121750380irq/30-eth0_g0_1219-21kworker/1:223:48:081
121750380irq/30-eth0_g0_0-21swapper/123:30:301
121750380irq/30-eth0_g0_0-21swapper/123:03:471
121650380irq/29-eth0_g0_8750-21latency_hist21:08:180
121650380irq/29-eth0_g0_4605-21unixbench_singl20:48:400
121650380irq/29-eth0_g0_26894-21ntpdc20:08:350
121650380irq/29-eth0_g0_13-21kworker/0:123:10:240
121650380irq/29-eth0_g0_13-21kworker/0:123:10:240
121650380irq/29-eth0_g0_13-21kworker/0:100:24:400
121380ksoftirqd/1121650irq/29-eth0_g0_21:03:371
121380ksoftirqd/1121650irq/29-eth0_g0_20:09:461
121380ksoftirqd/1121650irq/29-eth0_g0_19:47:001
121380ksoftirqd/1121650irq/29-eth0_g0_19:19:511
1169699381cyclictest7035-21unixbench_singl20:58:391
1169699381cyclictest17334-21grep19:28:411
1169699381cyclictest12549-21cpu21:23:271
121750370irq/30-eth0_g0_19529-21awk19:38:351
121750370irq/30-eth0_g0_1219-21kworker/1:221:54:401
121750370irq/30-eth0_g0_121ksoftirqd/122:15:261
121650370irq/29-eth0_g0_876-21unixbench_singl20:33:380
121650370irq/29-eth0_g0_876-21unixbench_singl20:33:380
121650370irq/29-eth0_g0_3332-21unixbench_multi20:43:380
121650370irq/29-eth0_g0_31ksoftirqd/020:03:310
121650370irq/29-eth0_g0_2585-21taskset20:43:170
121650370irq/29-eth0_g0_1964-21runrttasks19:48:020
121650370irq/29-eth0_g0_14773-21find19:18:370
121650370irq/29-eth0_g0_13279-21cat19:13:320
121650370irq/29-eth0_g0_1169699cyclictest20:53:331
1169699371cyclictest31751-21/usr/sbin/munin20:28:351
1169699371cyclictest31751-21/usr/sbin/munin20:28:351
121650360irq/29-eth0_g0_1964-21runrttasks21:01:180
121650360irq/29-eth0_g0_11432-21runrttasks19:05:211
121360ksoftirqd/1121750irq/30-eth0_g0_19:34:200
121360ksoftirqd/1121750irq/30-eth0_g0_19:12:120
121360ksoftirqd/1121650irq/29-eth0_g0_20:04:521
1169699362cyclictest9670-21ntp_kernel_err23:23:341
1169699361cyclictest30445-21seq20:23:311
1169699361cyclictest2001-21swap20:38:361
121650350irq/29-eth0_g0_23475-21unixbench_multi19:53:400
121650350irq/29-eth0_g0_21664-21df_abs19:48:290
121650350irq/29-eth0_g0_1964-21runrttasks20:32:130
121650350irq/29-eth0_g0_1964-21runrttasks20:32:130
121650350irq/29-eth0_g0_19413-21latency19:38:320
121750340irq/30-eth0_g0_12483-21grep19:08:381
121750340irq/30-eth0_g0_1219-21kworker/1:223:39:281
121650340irq/29-eth0_g0_4931-21runrttasks20:52:051
121650340irq/29-eth0_g0_0-21swapper/019:23:350
121650330irq/29-eth0_g0_24512-21ps19:58:371
1169699331cyclictest0-21swapper/120:13:331
1169699331cyclictest0-21swapper/119:48:281
121650320irq/29-eth0_g0_29256-21seq20:18:330
1169699321cyclictest0-21swapper/119:53:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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