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2026-08-28 - 03:00

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 highest latencies:
System rack3slot5s.osadl.org (updated Fri Aug 28, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211080ksoftirqd/1121750irq/30-eth0_g0_23:38:441
158492770sleep1121750irq/30-eth0_g0_00:01:291
277042610sleep1121650irq/29-eth0_g0_22:38:321
160442560sleep1121750irq/30-eth0_g0_21:51:231
312152540sleep0121750irq/30-eth0_g0_22:51:380
121540ksoftirqd/1121750irq/30-eth0_g0_23:43:561
121530ksoftirqd/1121750irq/30-eth0_g0_21:37:101
156292520sleep0121650irq/29-eth0_g0_21:50:190
121500ksoftirqd/1121750irq/30-eth0_g0_23:21:210
121500ksoftirqd/1121750irq/30-eth0_g0_21:58:001
121480ksoftirqd/1121750irq/30-eth0_g0_00:10:531
121470ksoftirqd/1121750irq/30-eth0_g0_23:54:341
121460ksoftirqd/1121750irq/30-eth0_g0_21:47:351
121450ksoftirqd/1121750irq/30-eth0_g0_23:01:401
121450ksoftirqd/1121750irq/30-eth0_g0_22:45:141
121450ksoftirqd/1121750irq/30-eth0_g0_00:22:421
121750440irq/30-eth0_g0_1219-21kworker/1:223:14:191
121750440irq/30-eth0_g0_1219-21kworker/1:223:14:191
121650440irq/29-eth0_g0_10390-21df_abs19:16:190
121750430irq/30-eth0_g0_1219-21kworker/1:221:18:471
121430ksoftirqd/1121750irq/30-eth0_g0_22:07:481
121430ksoftirqd/1121650irq/29-eth0_g0_22:50:520
121750420irq/30-eth0_g0_1219-21kworker/1:223:20:521
121750420irq/30-eth0_g0_1219-21kworker/1:223:09:241
121750420irq/30-eth0_g0_1219-21kworker/1:221:12:181
121750420irq/30-eth0_g0_121ksoftirqd/122:28:271
121650420irq/29-eth0_g0_31ksoftirqd/019:36:300
121650420irq/29-eth0_g0_31ksoftirqd/019:36:300
121650420irq/29-eth0_g0_13-21kworker/0:123:02:410
121650420irq/29-eth0_g0_121ksoftirqd/123:00:560
121420ksoftirqd/1121750irq/30-eth0_g0_23:56:311
121420ksoftirqd/1121750irq/30-eth0_g0_23:56:311
121420ksoftirqd/1121750irq/30-eth0_g0_22:32:191
121420ksoftirqd/1121750irq/30-eth0_g0_22:32:191
121420ksoftirqd/1121650irq/29-eth0_g0_22:51:241
121420ksoftirqd/1121650irq/29-eth0_g0_21:52:280
287782410sleep0121650irq/29-eth0_g0_22:41:470
121750410irq/30-eth0_g0_121ksoftirqd/121:21:261
121650410irq/29-eth0_g0_31ksoftirqd/023:08:530
121650410irq/29-eth0_g0_13-21kworker/0:123:52:120
121650410irq/29-eth0_g0_121ksoftirqd/122:17:190
121410ksoftirqd/1121750irq/30-eth0_g0_23:38:460
121410ksoftirqd/1121750irq/30-eth0_g0_00:32:531
778999408cyclictest187072sleep119:50:191
121750400irq/30-eth0_g0_31ksoftirqd/019:56:280
121750400irq/30-eth0_g0_121ksoftirqd/121:29:131
121650400irq/29-eth0_g0_31ksoftirqd/023:31:200
121650400irq/29-eth0_g0_26596-21ntp_offset20:21:240
121650400irq/29-eth0_g0_13-21kworker/0:122:08:370
121650400irq/29-eth0_g0_13-21kworker/0:121:57:320
121650400irq/29-eth0_g0_13-21kworker/0:121:06:440
121400ksoftirqd/1121750irq/30-eth0_g0_00:27:220
121400ksoftirqd/1121650irq/29-eth0_g0_21:43:101
778999391cyclictest31770-21grep20:41:301
778999391cyclictest21640-21cat20:01:241
148032390chrt121750irq/30-eth0_g0_23:57:370
148032390chrt121750irq/30-eth0_g0_23:57:370
121750390irq/30-eth0_g0_1219-21kworker/1:222:56:501
121750390irq/30-eth0_g0_1219-21kworker/1:222:17:431
121750390irq/30-eth0_g0_1219-21kworker/1:222:03:151
121750390irq/30-eth0_g0_1219-21kworker/1:200:11:221
121650390irq/29-eth0_g0_31ksoftirqd/021:38:350
121650390irq/29-eth0_g0_31ksoftirqd/000:32:030
121650390irq/29-eth0_g0_13-21kworker/0:123:27:280
121650390irq/29-eth0_g0_13-21kworker/0:123:13:360
121650390irq/29-eth0_g0_13-21kworker/0:123:13:360
121650390irq/29-eth0_g0_13-21kworker/0:121:26:220
121650390irq/29-eth0_g0_13-21kworker/0:121:25:250
121650390irq/29-eth0_g0_13-21kworker/0:100:18:200
121650390irq/29-eth0_g0_13-21kworker/0:100:03:380
121650390irq/29-eth0_g0_11956-21open_inodes23:46:280
121390ksoftirqd/1121750irq/30-eth0_g0_21:35:550
121390ksoftirqd/1121750irq/30-eth0_g0_19:55:210
121390ksoftirqd/1121650irq/29-eth0_g0_22:46:241
7789993824cyclictest29870-21/usr/sbin/munin20:36:251
778999381cyclictest9159-21taskset19:11:191
778999381cyclictest3493-21cat21:01:091
778999381cyclictest21368-21unixbench_singl22:11:301
778999381cyclictest17105-21unixbench_singl19:41:291
778999381cyclictest17105-21unixbench_singl19:41:291
778999381cyclictest10785-21ps19:16:261
121750380irq/30-eth0_g0_1219-21kworker/1:223:27:071
121750380irq/30-eth0_g0_1219-21kworker/1:221:07:461
121750380irq/30-eth0_g0_121ksoftirqd/121:32:131
121650380irq/29-eth0_g0_6933-21/usr/sbin/munin19:01:250
121650380irq/29-eth0_g0_31ksoftirqd/023:18:310
121650380irq/29-eth0_g0_27728-21missed_timers20:26:240
121650380irq/29-eth0_g0_2294-21latency_hist20:56:090
121650380irq/29-eth0_g0_13-21kworker/0:122:30:580
121650380irq/29-eth0_g0_13-21kworker/0:122:21:290
121650380irq/29-eth0_g0_13-21kworker/0:122:05:080
121650380irq/29-eth0_g0_13-21kworker/0:121:20:400
121650380irq/29-eth0_g0_121ksoftirqd/122:37:250
778999372cyclictest8528-21grep23:31:301
778999372cyclictest22540-21egrep20:06:191
778999372cyclictest12723-21latency_hist19:26:091
778999371cyclictest4685-21diskmemload00:26:191
778999371cyclictest24309-21awk20:11:281
778999371cyclictest23429-21cat22:21:271
778999371cyclictest15169-21grep19:36:091
778999371cyclictest1386-21chrt20:51:231
778999371cyclictest0-21swapper/100:16:521
121650370irq/29-eth0_g0_31ksoftirqd/000:12:540
121650370irq/29-eth0_g0_29348-21unixbench_singl20:31:310
121650370irq/29-eth0_g0_26221-21sed22:31:320
121650370irq/29-eth0_g0_26221-21sed22:31:320
121650370irq/29-eth0_g0_1964-21runrttasks20:06:240
121650370irq/29-eth0_g0_17969-21missed_timers19:46:220
121650370irq/29-eth0_g0_13-21kworker/0:123:44:520
121650370irq/29-eth0_g0_13-21kworker/0:121:12:150
121650370irq/29-eth0_g0_12892-21df_abs19:26:200
121650370irq/29-eth0_g0_121ksoftirqd/123:46:461
121650370irq/29-eth0_g0_121ksoftirqd/122:13:560
778999361cyclictest29321-21grep20:31:311
778999361cyclictest20734-21unixbench_multi19:56:301
778999361cyclictest0-21swapper/123:24:031
778999361cyclictest0-21swapper/119:07:551
121650360irq/29-eth0_g0_9834-21vmstat19:11:300
121650360irq/29-eth0_g0_4152-21timerandwakeup21:01:300
121650360irq/29-eth0_g0_4152-21timerandwakeup21:01:300
121650360irq/29-eth0_g0_32539-21iostat20:46:210
121650360irq/29-eth0_g0_2126-21lldpd20:20:370
121650360irq/29-eth0_g0_1964-21runrttasks00:26:080
121650360irq/29-eth0_g0_17592-21ls19:46:080
121650360irq/29-eth0_g0_17592-21ls19:46:080
121650360irq/29-eth0_g0_14537-21awk19:31:280
121650360irq/29-eth0_g0_13655-21wc21:41:250
121650360irq/29-eth0_g0_13-21kworker/0:100:06:280
121650360irq/29-eth0_g0_11820-21cat19:21:230
7789993530cyclictest28136-21grep20:26:311
778999351cyclictest32767-21wc20:46:261
121650350irq/29-eth0_g0_31008-21latency_hist20:41:080
121650350irq/29-eth0_g0_24402-21unixbench_multi20:11:290
121650350irq/29-eth0_g0_1964-21runrttasks19:31:001
778999341cyclictest192602sleep119:51:241
121750340irq/30-eth0_g0_3639-21sed21:01:211
121750340irq/30-eth0_g0_3639-21sed21:01:211
121650340irq/29-eth0_g0_2669-21netstat20:56:230
121340ksoftirqd/17786-21munin-run19:06:081
778999331cyclictest0-21swapper/120:21:241
778999331cyclictest0-21swapper/120:21:091
121750330irq/30-eth0_g0_15873-21unixbench_singl19:36:301
121750330irq/30-eth0_g0_15873-21unixbench_singl19:36:301
121650330irq/29-eth0_g0_0-21swapper/020:42:230
121650330irq/29-eth0_g0_0-21swapper/020:01:190
121650320irq/29-eth0_g0_8482-21cat19:06:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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