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2025-07-12 - 11:28

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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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 highest latencies:
System rack3slot5s.osadl.org (updated Sat Jul 12, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
50222830sleep12288750irq/30-eth0_g0_23:00:591
121780ksoftirqd/12288750irq/30-eth0_g0_00:28:251
121750ksoftirqd/12288750irq/30-eth0_g0_20:49:231
121650ksoftirqd/12288750irq/30-eth0_g0_23:22:170
61442550sleep02288650irq/29-eth0_g0_23:04:480
161782540sleep12288750irq/30-eth0_g0_21:33:031
262542510sleep02288650irq/29-eth0_g0_22:14:050
37952470sleep02288650irq/29-eth0_g0_22:55:570
121470ksoftirqd/12288650irq/29-eth0_g0_23:09:451
121470ksoftirqd/12288650irq/29-eth0_g0_22:55:251
121470ksoftirqd/12288650irq/29-eth0_g0_20:44:151
121460ksoftirqd/12288750irq/30-eth0_g0_21:18:100
121450ksoftirqd/12288750irq/30-eth0_g0_23:05:031
121450ksoftirqd/12288650irq/29-eth0_g0_23:22:561
121450ksoftirqd/12288650irq/29-eth0_g0_22:13:001
121450ksoftirqd/12288650irq/29-eth0_g0_22:07:571
121450ksoftirqd/12288650irq/29-eth0_g0_00:09:361
121440ksoftirqd/1160672chrt19:22:250
2288650430irq/29-eth0_g0_31ksoftirqd/021:57:570
121430ksoftirqd/12288650irq/29-eth0_g0_23:15:480
121430ksoftirqd/12288650irq/29-eth0_g0_21:57:031
121430ksoftirqd/12288650irq/29-eth0_g0_21:35:280
2288650420irq/29-eth0_g0_31ksoftirqd/023:37:520
2288650420irq/29-eth0_g0_121ksoftirqd/121:42:021
173292420sleep12288750irq/30-eth0_g0_23:51:321
121420ksoftirqd/12288750irq/30-eth0_g0_21:44:541
121420ksoftirqd/12288650irq/29-eth0_g0_20:56:591
121420ksoftirqd/12288650irq/29-eth0_g0_00:33:481
2288750410irq/30-eth0_g0_30330-21/usr/sbin/munin22:33:060
2288750410irq/30-eth0_g0_31ksoftirqd/023:42:460
2288750410irq/30-eth0_g0_31ksoftirqd/000:34:310
2288750410irq/30-eth0_g0_26677-21unixbench_singl20:03:040
2288750410irq/30-eth0_g0_22885-21kworker/0:223:27:550
2288750410irq/30-eth0_g0_22885-21kworker/0:200:21:560
2288750410irq/30-eth0_g0_21190-21unixbench_multi21:53:060
2288750410irq/30-eth0_g0_1957-21ntpdc22:48:000
2288650410irq/29-eth0_g0_31ksoftirqd/023:52:540
2288650410irq/29-eth0_g0_121ksoftirqd/123:29:141
2288650410irq/29-eth0_g0_121ksoftirqd/122:05:441
2288650410irq/29-eth0_g0_121ksoftirqd/121:13:571
2288650410irq/29-eth0_g0_121ksoftirqd/121:08:301
298972400sleep02288650irq/29-eth0_g0_22:28:460
2288750400irq/30-eth0_g0_31ksoftirqd/023:57:590
2288750400irq/30-eth0_g0_27475-21latency20:07:560
2288750400irq/30-eth0_g0_22885-21kworker/0:223:33:000
2288750400irq/30-eth0_g0_22885-21kworker/0:223:23:030
2288750400irq/30-eth0_g0_22885-21kworker/0:223:12:010
2288750400irq/30-eth0_g0_22885-21kworker/0:222:18:380
2288750400irq/30-eth0_g0_22834-21zcat19:48:020
2288750400irq/30-eth0_g0_16324-21taskset19:22:540
2288650400irq/29-eth0_g0_470-21kworker/1:122:52:071
2288650400irq/29-eth0_g0_470-21kworker/1:122:35:081
2288650400irq/29-eth0_g0_470-21kworker/1:122:00:291
2288650400irq/29-eth0_g0_470-21kworker/1:121:51:141
2288650400irq/29-eth0_g0_470-21kworker/1:100:27:311
2288650400irq/29-eth0_g0_470-21kworker/1:100:20:431
2288650400irq/29-eth0_g0_31ksoftirqd/000:23:410
2288650400irq/29-eth0_g0_12418-21latencyplot19:07:410
121400ksoftirqd/12288650irq/29-eth0_g0_22:19:291
121400ksoftirqd/12288650irq/29-eth0_g0_21:47:130
121400ksoftirqd/12288650irq/29-eth0_g0_21:20:281
105522400sleep02288650irq/29-eth0_g0_21:11:460
2288750390irq/30-eth0_g0_4986-21ntp_offset20:47:590
2288750390irq/30-eth0_g0_31ksoftirqd/023:47:500
2288750390irq/30-eth0_g0_22885-21kworker/0:222:38:090
2288750390irq/30-eth0_g0_22885-21kworker/0:222:23:430
2288750390irq/30-eth0_g0_22885-21kworker/0:222:11:000
2288750390irq/30-eth0_g0_22885-21kworker/0:221:51:070
2288750390irq/30-eth0_g0_22885-21kworker/0:200:30:150
2288650390irq/29-eth0_g0_121ksoftirqd/123:57:481
2288650390irq/29-eth0_g0_121ksoftirqd/122:45:101
2288650390irq/29-eth0_g0_11511-21iostat19:02:551
2288650390irq/29-eth0_g0_0-21swapper/123:17:581
121390ksoftirqd/12288750irq/30-eth0_g0_00:03:080
121390ksoftirqd/12288650irq/29-eth0_g0_23:53:071
121390ksoftirqd/12288650irq/29-eth0_g0_20:38:471
121390ksoftirqd/12288650irq/29-eth0_g0_20:25:431
2288750380irq/30-eth0_g0_3917-21sendmail_mailst20:43:010
2288750380irq/30-eth0_g0_22885-21kworker/0:222:44:190
2288750380irq/30-eth0_g0_22885-21kworker/0:221:31:540
2288750380irq/30-eth0_g0_22885-21kworker/0:221:23:120
2288750380irq/30-eth0_g0_22885-21kworker/0:221:17:340
2288750380irq/30-eth0_g0_22885-21kworker/0:200:12:140
2288650380irq/29-eth0_g0_470-21kworker/1:100:16:131
2288650380irq/29-eth0_g0_21756-21head19:43:061
2288650380irq/29-eth0_g0_0-21swapper/123:15:481
2288650380irq/29-eth0_g0_0-21swapper/122:23:451
1242499382cyclictest27643-21/usr/sbin/munin20:07:591
121380ksoftirqd/12288650irq/29-eth0_g0_23:33:351
121380ksoftirqd/12288650irq/29-eth0_g0_19:59:471
2288750370irq/30-eth0_g0_23924-21ntp_kernel_pll_19:53:010
2288750370irq/30-eth0_g0_22885-21kworker/0:222:59:500
2288750370irq/30-eth0_g0_22885-21kworker/0:221:40:430
2288750370irq/30-eth0_g0_22885-21kworker/0:200:12:420
2288750370irq/30-eth0_g0_2021-21runrttasks20:41:370
2288650370irq/29-eth0_g0_2021-21runrttasks22:39:291
2288650370irq/29-eth0_g0_121ksoftirqd/121:24:531
121370ksoftirqd/12288650irq/29-eth0_g0_20:33:051
2288750360irq/30-eth0_g0_31464-21timerandwakeup20:23:010
2288750360irq/30-eth0_g0_22885-21kworker/0:222:03:230
2288750360irq/30-eth0_g0_17872-21proc_pri19:27:590
2288650360irq/29-eth0_g0_7431-21ntpdc20:57:591
2288650360irq/29-eth0_g0_470-21kworker/1:123:43:531
2288650360irq/29-eth0_g0_20625-21unixbench_multi00:03:021
2288650360irq/29-eth0_g0_2021-21runrttasks19:26:461
2288650360irq/29-eth0_g0_17538-21df_abs19:27:531
2288650360irq/29-eth0_g0_13138-21grep19:08:011
2288650360irq/29-eth0_g0_0-21swapper/123:37:511
2288750350irq/30-eth0_g0_21404-21missed_timers19:43:000
2288650350irq/29-eth0_g0_23861-21wc19:53:001
2288650350irq/29-eth0_g0_2021-21runrttasks19:41:131
2288650350irq/29-eth0_g0_18894-21latency19:32:561
2288650350irq/29-eth0_g0_0-21swapper/122:28:291
121350ksoftirqd/12288650irq/29-eth0_g0_20:31:011
121350ksoftirqd/12288650irq/29-eth0_g0_19:51:241
2288750340irq/30-eth0_g0_32109-21/usr/sbin/munin20:27:550
2288750340irq/30-eth0_g0_2021-21runrttasks20:15:180
2288650340irq/29-eth0_g0_0-21swapper/121:28:011
2288650340irq/29-eth0_g0_0-21swapper/121:03:001
2288650340irq/29-eth0_g0_0-21swapper/119:14:391
1242499341cyclictest28567-21df_abs20:12:531
12423993429cyclictest8210-21latency_hist21:02:410
121340ksoftirqd/12288650irq/29-eth0_g0_20:18:031
2288750330irq/30-eth0_g0_25158-21ntp_states19:58:000
2288750330irq/30-eth0_g0_2021-21runrttasks21:03:390
2288750330irq/30-eth0_g0_2021-21runrttasks20:55:300
2288750330irq/30-eth0_g0_14907-21latency_hist19:17:410
2288750330irq/30-eth0_g0_13219-21grep19:08:020
2288650330irq/29-eth0_g0_0-21swapper/120:02:581
2288650330irq/29-eth0_g0_0-21swapper/119:17:541
2288650330irq/29-eth0_g0_0-21swapper/020:32:530
2288750320irq/30-eth0_g0_20397-21fgrep19:38:040
2288750320irq/30-eth0_g0_0-21swapper/020:17:590
2288650320irq/29-eth0_g0_1242399cyclictest19:33:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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