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2025-12-12 - 04:12

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 all highest latencies:
System rack3slot5s.osadl.org (updated Fri Dec 12, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211010ksoftirqd/1121550irq/30-eth0_g0_21:50:131
1211010ksoftirqd/1121550irq/30-eth0_g0_21:50:131
33632590sleep1121450irq/29-eth0_g0_00:14:531
48962560sleep0121450irq/29-eth0_g0_22:07:190
121530ksoftirqd/1121450irq/29-eth0_g0_00:33:250
121510ksoftirqd/1121550irq/30-eth0_g0_19:10:071
121510ksoftirqd/1121450irq/29-eth0_g0_22:55:190
121500ksoftirqd/1121550irq/30-eth0_g0_22:38:591
121460ksoftirqd/1121550irq/30-eth0_g0_20:00:131
121460ksoftirqd/1121450irq/29-eth0_g0_21:23:101
25792994529cyclictest1984-21runrttasks23:16:451
146202450sleep1121550irq/30-eth0_g0_22:46:211
121550450irq/30-eth0_g0_470-21kworker/1:122:22:041
121450440irq/29-eth0_g0_31ksoftirqd/023:39:540
121440ksoftirqd/1121550irq/30-eth0_g0_22:25:140
121440ksoftirqd/1121450irq/29-eth0_g0_22:15:191
94242430sleep0121450irq/29-eth0_g0_00:39:040
121450430irq/29-eth0_g0_31ksoftirqd/023:43:120
121430ksoftirqd/1121450irq/29-eth0_g0_23:57:170
307632420sleep0121450irq/29-eth0_g0_23:53:350
263932420sleep0121450irq/29-eth0_g0_21:23:410
2579299422cyclictest24826-21grep21:15:201
121550420irq/30-eth0_g0_470-21kworker/1:100:05:291
121450420irq/29-eth0_g0_31ksoftirqd/023:19:400
121450420irq/29-eth0_g0_31ksoftirqd/021:27:010
121420ksoftirqd/1121450irq/29-eth0_g0_23:01:291
2579299411cyclictest321312sleep123:59:551
121550410irq/30-eth0_g0_470-21kworker/1:122:50:041
121550410irq/30-eth0_g0_470-21kworker/1:122:31:201
121550410irq/30-eth0_g0_470-21kworker/1:100:28:521
121550410irq/30-eth0_g0_121ksoftirqd/121:30:181
121450410irq/29-eth0_g0_30244-21latency_hist21:39:560
121450410irq/29-eth0_g0_25185-21sendmail_mailqu19:05:150
121450410irq/29-eth0_g0_13-21kworker/0:121:48:000
121450410irq/29-eth0_g0_13-21kworker/0:121:34:360
121410ksoftirqd/1121450irq/29-eth0_g0_23:41:251
121410ksoftirqd/1121450irq/29-eth0_g0_22:04:311
121410ksoftirqd/1121450irq/29-eth0_g0_20:32:501
2579299401cyclictest5643-21runrttasks19:59:551
2579299401cyclictest2228-21grep21:55:221
121550400irq/30-eth0_g0_31ksoftirqd/022:51:310
121550400irq/30-eth0_g0_121ksoftirqd/123:27:471
121550400irq/30-eth0_g0_121ksoftirqd/123:27:471
121550400irq/30-eth0_g0_121ksoftirqd/122:08:161
121450400irq/29-eth0_g0_2893-21unixbench_multi00:10:210
121450400irq/29-eth0_g0_1984-21runrttasks21:05:240
121450400irq/29-eth0_g0_1634-21grep00:05:180
121450400irq/29-eth0_g0_13-21kworker/0:121:52:090
121450400irq/29-eth0_g0_13-21kworker/0:121:52:090
121400ksoftirqd/1121550irq/30-eth0_g0_00:04:510
121400ksoftirqd/1121450irq/29-eth0_g0_23:49:291
121400ksoftirqd/1121450irq/29-eth0_g0_20:19:031
2579299391cyclictest32652-21grep19:35:161
121550390irq/30-eth0_g0_121ksoftirqd/100:19:481
121450390irq/29-eth0_g0_31ksoftirqd/022:21:120
121450390irq/29-eth0_g0_23630-21taskset21:10:200
121450390irq/29-eth0_g0_14192-21ntp_offset22:45:120
121450390irq/29-eth0_g0_13-21kworker/0:123:22:010
121450390irq/29-eth0_g0_13-21kworker/0:123:02:280
121450390irq/29-eth0_g0_13-21kworker/0:121:58:560
121450390irq/29-eth0_g0_13-21kworker/0:121:43:140
121450390irq/29-eth0_g0_121ksoftirqd/100:21:201
121450390irq/29-eth0_g0_0-21swapper/000:29:550
121390ksoftirqd/1121550irq/30-eth0_g0_23:14:360
121390ksoftirqd/1121550irq/30-eth0_g0_22:30:100
121390ksoftirqd/1121550irq/30-eth0_g0_22:15:230
121390ksoftirqd/1121550irq/30-eth0_g0_22:01:570
121390ksoftirqd/1121550irq/30-eth0_g0_21:17:120
121390ksoftirqd/1121450irq/29-eth0_g0_23:30:141
121390ksoftirqd/1121450irq/29-eth0_g0_23:05:301
121390ksoftirqd/1121450irq/29-eth0_g0_22:44:451
121390ksoftirqd/1121450irq/29-eth0_g0_21:41:551
121390ksoftirqd/1121450irq/29-eth0_g0_20:59:441
121390ksoftirqd/1121450irq/29-eth0_g0_20:13:591
121390ksoftirqd/1121450irq/29-eth0_g0_20:13:591
121390ksoftirqd/1121450irq/29-eth0_g0_19:51:311
121390ksoftirqd/1121450irq/29-eth0_g0_00:39:261
2579299382cyclictest16931-21unixbench_singl22:55:191
121550380irq/30-eth0_g0_470-21kworker/1:123:52:091
121550380irq/30-eth0_g0_470-21kworker/1:122:13:221
121550380irq/30-eth0_g0_470-21kworker/1:121:12:541
121550380irq/30-eth0_g0_470-21kworker/1:100:00:431
121550380irq/30-eth0_g0_25105-21proc_pri19:05:141
121550380irq/30-eth0_g0_13-21kworker/0:122:11:450
121550380irq/30-eth0_g0_121ksoftirqd/123:10:341
121550380irq/30-eth0_g0_0-21swapper/100:30:101
121450380irq/29-eth0_g0_9417-21egrep20:15:060
121450380irq/29-eth0_g0_3631-21/usr/sbin/munin00:15:100
121450380irq/29-eth0_g0_13-21kworker/0:123:47:570
121450380irq/29-eth0_g0_13-21kworker/0:123:31:070
121450380irq/29-eth0_g0_13-21kworker/0:123:06:430
121450380irq/29-eth0_g0_13-21kworker/0:100:20:340
121380ksoftirqd/1121550irq/30-eth0_g0_22:37:050
121380ksoftirqd/1121450irq/29-eth0_g0_21:46:501
121380ksoftirqd/1121450irq/29-eth0_g0_20:42:561
121380ksoftirqd/1121450irq/29-eth0_g0_20:38:071
121380ksoftirqd/1121450irq/29-eth0_g0_19:33:111
2579299372cyclictest26475-21open_files23:35:141
2579299372cyclictest21092-21taskset21:00:191
2579299371cyclictest29508-21ps21:35:121
2579299371cyclictest26964-21awk21:25:131
2579299371cyclictest17909-21munin-run20:49:551
121550370irq/30-eth0_g0_470-21kworker/1:123:22:551
121450370irq/29-eth0_g0_31056-21latency19:30:100
121450370irq/29-eth0_g0_27766-21unixbench_multi19:15:170
121450370irq/29-eth0_g0_18692-21unixbench_singl20:50:190
121450370irq/29-eth0_g0_13-21kworker/0:122:40:200
121450370irq/29-eth0_g0_0-21swapper/020:00:080
2579299362cyclictest27344-21irqstats19:15:101
2579299362cyclictest2129-21lldpd19:41:461
2579299361cyclictest18685-21unixbench_singl20:50:191
2579299361cyclictest12079-21ethtool20:25:111
121450360irq/29-eth0_g0_5045-21find19:55:150
121450360irq/29-eth0_g0_1984-21runrttasks21:00:340
121450360irq/29-eth0_g0_1984-21runrttasks20:38:230
121450360irq/29-eth0_g0_15546-21/usr/sbin/munin20:40:120
121450360irq/29-eth0_g0_13-21kworker/0:123:25:220
121450360irq/29-eth0_g0_13-21kworker/0:123:25:220
121450360irq/29-eth0_g0_11029-21ntpdc20:20:140
121360ksoftirqd/17140-21/usr/sbin/munin20:05:091
121360ksoftirqd/1121550irq/30-eth0_g0_20:10:530
121360ksoftirqd/1121550irq/30-eth0_g0_20:10:530
121360ksoftirqd/1121550irq/30-eth0_g0_19:50:120
2579299351cyclictest22832sleep119:45:081
2579299351cyclictest10888-21cat20:20:111
121450350irq/29-eth0_g0_30295-21vmstat19:25:170
121450350irq/29-eth0_g0_2745-21unixbench_singl19:45:160
121450350irq/29-eth0_g0_1984-21runrttasks20:55:240
121450350irq/29-eth0_g0_1984-21runrttasks19:09:570
121450350irq/29-eth0_g0_13163-21df_abs20:30:070
2579299342cyclictest0-21swapper/119:25:101
121550340irq/30-eth0_g0_470-21kworker/1:122:26:081
121450340irq/29-eth0_g0_7137-21seq20:05:090
121450340irq/29-eth0_g0_32167-21df_inode19:35:070
121340ksoftirqd/1121550irq/30-eth0_g0_19:20:130
2579299332cyclictest21967-21load21:05:151
2579299331cyclictest0-21swapper/119:20:091
121450330irq/29-eth0_g0_0-21swapper/020:45:100
121450320irq/29-eth0_g0_1095-21cat19:40:110
121450320irq/29-eth0_g0_0-21swapper/020:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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