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2026-03-16 - 04:53

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 Mon Mar 16, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1428421130sleep0121650irq/29-eth0_g0_00:26:120
121910ksoftirqd/1121750irq/30-eth0_g0_22:58:231
121830ksoftirqd/1121750irq/30-eth0_g0_21:30:041
324672770sleep0121750irq/30-eth0_g0_21:15:230
121630ksoftirqd/1121650irq/29-eth0_g0_00:25:041
121590ksoftirqd/1121650irq/29-eth0_g0_22:57:110
15942580chrt121750irq/30-eth0_g0_23:35:051
15942580chrt121750irq/30-eth0_g0_23:35:051
156792580sleep0121650irq/29-eth0_g0_00:33:120
156792580sleep0121650irq/29-eth0_g0_00:33:120
149392530sleep1121750irq/30-eth0_g0_22:17:241
121520ksoftirqd/1121750irq/30-eth0_g0_23:17:361
121510ksoftirqd/1121750irq/30-eth0_g0_23:12:091
121490ksoftirqd/1121650irq/29-eth0_g0_22:41:220
97562480sleep1121750irq/30-eth0_g0_21:55:091
113962480sleep0121650irq/29-eth0_g0_22:03:580
259472470sleep1121650irq/29-eth0_g0_23:02:091
259472470sleep1121650irq/29-eth0_g0_23:02:091
121470ksoftirqd/1121750irq/30-eth0_g0_21:16:491
121470ksoftirqd/1121650irq/29-eth0_g0_21:08:271
121650440irq/29-eth0_g0_16998-21sendmail_mailqu22:25:050
121650440irq/29-eth0_g0_121ksoftirqd/100:21:160
924994338cyclictest11523-21latency_hist22:04:471
77192430sleep1121750irq/30-eth0_g0_21:48:571
121430ksoftirqd/1121750irq/30-eth0_g0_23:33:291
121430ksoftirqd/1121650irq/29-eth0_g0_23:29:361
121430ksoftirqd/1121650irq/29-eth0_g0_23:20:041
121430ksoftirqd/1121650irq/29-eth0_g0_19:19:071
121430ksoftirqd/1121650irq/29-eth0_g0_00:17:271
92499421cyclictest6479-21netstat23:55:021
121750420irq/30-eth0_g0_470-21kworker/1:122:54:181
121750420irq/30-eth0_g0_470-21kworker/1:121:11:121
121650420irq/29-eth0_g0_2029-21runrttasks19:07:560
121650420irq/29-eth0_g0_2029-21runrttasks19:07:560
121420ksoftirqd/1121650irq/29-eth0_g0_00:24:021
121750410irq/30-eth0_g0_121ksoftirqd/122:48:461
121750410irq/30-eth0_g0_121ksoftirqd/100:00:080
121650410irq/29-eth0_g0_6109-21/usr/sbin/munin23:54:570
121650410irq/29-eth0_g0_13-21kworker/0:123:34:540
121650410irq/29-eth0_g0_13-21kworker/0:123:34:540
121650410irq/29-eth0_g0_13-21kworker/0:121:12:300
121650410irq/29-eth0_g0_13-21kworker/0:100:39:380
121650410irq/29-eth0_g0_126372chrt22:09:090
121410ksoftirqd/1121750irq/30-eth0_g0_00:33:461
121410ksoftirqd/1121750irq/30-eth0_g0_00:33:461
121410ksoftirqd/1121650irq/29-eth0_g0_22:27:221
121410ksoftirqd/1121650irq/29-eth0_g0_00:34:571
92499401cyclictest20083-21grep20:25:081
121750400irq/30-eth0_g0_470-21kworker/1:123:49:551
121750400irq/30-eth0_g0_470-21kworker/1:100:00:471
121650400irq/29-eth0_g0_13-21kworker/0:123:48:470
121650400irq/29-eth0_g0_13-21kworker/0:123:12:390
121650400irq/29-eth0_g0_13-21kworker/0:122:45:430
121650400irq/29-eth0_g0_13-21kworker/0:122:32:310
121650400irq/29-eth0_g0_13-21kworker/0:121:39:140
121650400irq/29-eth0_g0_13-21kworker/0:121:39:140
121650400irq/29-eth0_g0_13-21kworker/0:121:27:350
121650400irq/29-eth0_g0_13-21kworker/0:100:18:240
121650400irq/29-eth0_g0_121ksoftirqd/121:49:500
121400ksoftirqd/1121750irq/30-eth0_g0_23:20:090
121400ksoftirqd/1121650irq/29-eth0_g0_22:21:511
121400ksoftirqd/1121650irq/29-eth0_g0_21:51:541
121400ksoftirqd/1121650irq/29-eth0_g0_21:40:081
121400ksoftirqd/1121650irq/29-eth0_g0_20:23:461
92499391cyclictest235142sleep120:40:011
32692390sleep0121650irq/29-eth0_g0_23:41:180
121750390irq/30-eth0_g0_121ksoftirqd/122:30:161
121750390irq/30-eth0_g0_121ksoftirqd/121:25:131
121750390irq/30-eth0_g0_0-21swapper/123:05:121
121650390irq/29-eth0_g0_2029-21runrttasks19:24:380
121650390irq/29-eth0_g0_14566-21sendmail_mailtr22:15:060
121650390irq/29-eth0_g0_13-21kworker/0:123:53:560
121650390irq/29-eth0_g0_13-21kworker/0:122:37:510
121650390irq/29-eth0_g0_13-21kworker/0:121:55:090
121650390irq/29-eth0_g0_13-21kworker/0:121:20:040
121650390irq/29-eth0_g0_13-21kworker/0:100:05:060
121650390irq/29-eth0_g0_12777-21grep19:55:070
121650390irq/29-eth0_g0_121ksoftirqd/119:10:030
121650390irq/29-eth0_g0_121ksoftirqd/119:10:030
121390ksoftirqd/1121750irq/30-eth0_g0_00:13:170
121390ksoftirqd/1121650irq/29-eth0_g0_21:37:341
121390ksoftirqd/1121650irq/29-eth0_g0_21:37:341
121390ksoftirqd/1121650irq/29-eth0_g0_20:17:401
121390ksoftirqd/1121650irq/29-eth0_g0_20:03:191
92499382cyclictest15924-21df_inode20:09:591
92499381cyclictest8822-21chrt00:05:001
92499381cyclictest19285-21/usr/sbin/munin22:35:001
121750380irq/30-eth0_g0_470-21kworker/1:122:40:521
121750380irq/30-eth0_g0_470-21kworker/1:122:06:001
121650380irq/29-eth0_g0_31ksoftirqd/021:44:530
121650380irq/29-eth0_g0_13-21kworker/0:123:31:330
121650380irq/29-eth0_g0_13-21kworker/0:123:04:480
121380ksoftirqd/1121750irq/30-eth0_g0_23:00:300
121380ksoftirqd/1121750irq/30-eth0_g0_23:00:300
121380ksoftirqd/1121750irq/30-eth0_g0_22:11:260
121380ksoftirqd/1121650irq/29-eth0_g0_22:12:251
121380ksoftirqd/1121650irq/29-eth0_g0_20:51:331
121380ksoftirqd/1121650irq/29-eth0_g0_20:51:331
121380ksoftirqd/1121650irq/29-eth0_g0_20:47:001
121380ksoftirqd/1121650irq/29-eth0_g0_20:05:301
121380ksoftirqd/1121650irq/29-eth0_g0_19:51:281
121380ksoftirqd/1121650irq/29-eth0_g0_19:51:281
121380ksoftirqd/1121650irq/29-eth0_g0_19:35:081
121380ksoftirqd/1121650irq/29-eth0_g0_19:32:481
121380ksoftirqd/1121650irq/29-eth0_g0_19:10:061
121380ksoftirqd/1121650irq/29-eth0_g0_19:10:061
92499372cyclictest28161-21df_abs20:59:551
92499371cyclictest5898-21latency_hist19:29:461
92499371cyclictest23113-21latency_hist20:39:471
121750370irq/30-eth0_g0_470-21kworker/1:123:46:501
121750370irq/30-eth0_g0_0-21swapper/123:40:131
121650370irq/29-eth0_g0_2029-21runrttasks20:23:060
121650370irq/29-eth0_g0_19744-21memory20:25:020
121650370irq/29-eth0_g0_16324-21sendmail_mailtr20:10:080
121650370irq/29-eth0_g0_15614-21ntp_kernel_err22:20:030
121650370irq/29-eth0_g0_13-21kworker/0:123:15:330
121650370irq/29-eth0_g0_13-21kworker/0:122:51:350
121650370irq/29-eth0_g0_13-21kworker/0:121:43:030
121650370irq/29-eth0_g0_13-21kworker/0:121:33:570
121650370irq/29-eth0_g0_121ksoftirqd/121:24:261
121650370irq/29-eth0_g0_0-21swapper/019:49:570
121650370irq/29-eth0_g0_0-21swapper/019:49:570
121370ksoftirqd/1121750irq/30-eth0_g0_23:28:270
121370ksoftirqd/1121750irq/30-eth0_g0_20:19:190
121370ksoftirqd/1121750irq/30-eth0_g0_19:26:510
121750360irq/30-eth0_g0_474-21runrttasks19:05:071
121750360irq/30-eth0_g0_474-21runrttasks19:05:071
121650360irq/29-eth0_g0_28730-21awk21:00:050
121650360irq/29-eth0_g0_27341-21sendmail_mailqu20:55:030
121650360irq/29-eth0_g0_24667-21missed_timers20:45:020
121650360irq/29-eth0_g0_2029-21runrttasks21:05:210
121650360irq/29-eth0_g0_2029-21runrttasks19:17:590
121650360irq/29-eth0_g0_10215-21cat19:45:060
92499351cyclictest12823-21awk19:55:081
121750350irq/30-eth0_g0_9105-21grep19:40:071
121750350irq/30-eth0_g0_0-21swapper/100:13:271
121650350irq/29-eth0_g0_7090-21latency_hist19:34:460
121650350irq/29-eth0_g0_26978-21runrttasks20:54:561
121650350irq/29-eth0_g0_22158-21runrttasks20:35:000
121650350irq/29-eth0_g0_20906-21seq20:30:000
121650350irq/29-eth0_g0_2029-21runrttasks20:40:190
121650350irq/29-eth0_g0_13912-21timerandwakeup20:00:090
92499341cyclictest3659-21chrt19:19:571
121650340irq/29-eth0_g0_8661-21sort19:40:000
121650340irq/29-eth0_g0_7476-21taskset19:35:010
121650340irq/29-eth0_g0_15221-21unixbench_singl20:05:070
121650330irq/29-eth0_g0_26183-21sort20:50:070
121650330irq/29-eth0_g0_26183-21sort20:50:070
92499321cyclictest0-21swapper/119:48:201
121750320irq/30-eth0_g0_21053-21ntp_kernel_err20:30:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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