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2026-08-12 - 06:36

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 376 highest latencies:
System rack3slot5s.osadl.org (updated Wed Aug 12, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2168221320sleep1121650irq/29-eth0_g0_23:41:351
2168221320sleep1121650irq/29-eth0_g0_23:41:351
1211140ksoftirqd/1121750irq/30-eth0_g0_21:50:571
90002780sleep1121650irq/29-eth0_g0_22:47:091
183672620sleep1121650irq/29-eth0_g0_21:14:121
280592570sleep1121750irq/30-eth0_g0_19:42:001
121540ksoftirqd/1121750irq/30-eth0_g0_00:05:341
246762480sleep0121650irq/29-eth0_g0_21:41:200
202882480sleep1121750irq/30-eth0_g0_21:22:041
121470ksoftirqd/1121650irq/29-eth0_g0_19:15:401
121460ksoftirqd/1121750irq/30-eth0_g0_23:20:431
121460ksoftirqd/1121750irq/30-eth0_g0_21:21:121
121460ksoftirqd/1121650irq/29-eth0_g0_20:49:581
121650450irq/29-eth0_g0_1964-21runrttasks19:06:130
121450ksoftirqd/1121750irq/30-eth0_g0_22:58:401
121450ksoftirqd/1121650irq/29-eth0_g0_21:27:491
121450ksoftirqd/1121650irq/29-eth0_g0_19:25:521
121750440irq/30-eth0_g0_79112sleep122:43:101
121750440irq/30-eth0_g0_79112sleep122:43:101
121750440irq/30-eth0_g0_1981-21seq22:20:261
121650440irq/29-eth0_g0_31ksoftirqd/019:12:090
121440ksoftirqd/1121650irq/29-eth0_g0_19:41:301
307782430sleep1121750irq/30-eth0_g0_22:06:001
307782430sleep1121750irq/30-eth0_g0_22:06:001
257862430sleep0121650irq/29-eth0_g0_21:44:560
121430ksoftirqd/1121650irq/29-eth0_g0_19:28:181
121430ksoftirqd/1121650irq/29-eth0_g0_00:11:131
6592420sleep0121750irq/30-eth0_g0_22:14:390
121750420irq/30-eth0_g0_299702sleep100:13:091
121750420irq/30-eth0_g0_299702sleep100:13:091
121750420irq/30-eth0_g0_1219-21kworker/1:221:35:221
121750420irq/30-eth0_g0_1219-21kworker/1:221:35:221
121420ksoftirqd/1121650irq/29-eth0_g0_23:09:441
121420ksoftirqd/1121650irq/29-eth0_g0_21:10:341
121650410irq/29-eth0_g0_31ksoftirqd/023:29:360
121650410irq/29-eth0_g0_21569-21runrttasks23:40:150
121650410irq/29-eth0_g0_21569-21runrttasks23:40:150
121650410irq/29-eth0_g0_13-21kworker/0:123:31:570
121650410irq/29-eth0_g0_13-21kworker/0:122:57:260
121650410irq/29-eth0_g0_13-21kworker/0:122:41:410
121650410irq/29-eth0_g0_13-21kworker/0:122:26:430
121650410irq/29-eth0_g0_13-21kworker/0:122:09:470
121650410irq/29-eth0_g0_13-21kworker/0:121:51:400
121650410irq/29-eth0_g0_13-21kworker/0:100:03:530
121650410irq/29-eth0_g0_0-21swapper/022:49:560
121410ksoftirqd/1121650irq/29-eth0_g0_21:58:391
1913699401cyclictest3882-21grep20:16:461
1913699401cyclictest27888-21grep21:52:081
121750400irq/30-eth0_g0_1219-21kworker/1:223:47:081
121750400irq/30-eth0_g0_121ksoftirqd/123:57:501
121750400irq/30-eth0_g0_121ksoftirqd/121:43:081
121650400irq/29-eth0_g0_31ksoftirqd/022:42:030
121650400irq/29-eth0_g0_31ksoftirqd/022:42:030
121650400irq/29-eth0_g0_31ksoftirqd/021:32:060
121650400irq/29-eth0_g0_31ksoftirqd/021:32:060
121650400irq/29-eth0_g0_31ksoftirqd/021:08:010
121650400irq/29-eth0_g0_1964-21runrttasks23:17:240
121650400irq/29-eth0_g0_13-21kworker/0:123:45:470
121650400irq/29-eth0_g0_13-21kworker/0:123:09:440
121650400irq/29-eth0_g0_13-21kworker/0:122:32:490
121650400irq/29-eth0_g0_13-21kworker/0:122:05:390
121650400irq/29-eth0_g0_13-21kworker/0:122:05:390
121650400irq/29-eth0_g0_13-21kworker/0:121:51:540
121650400irq/29-eth0_g0_13-21kworker/0:121:12:550
121650400irq/29-eth0_g0_13-21kworker/0:100:21:550
121650400irq/29-eth0_g0_13-21kworker/0:100:17:210
121400ksoftirqd/1121750irq/30-eth0_g0_21:02:200
121400ksoftirqd/1121650irq/29-eth0_g0_22:23:231
121400ksoftirqd/1121650irq/29-eth0_g0_00:17:241
1913699392cyclictest21681-21cpu19:16:581
1913699391cyclictest257362sleep119:32:031
121750390irq/30-eth0_g0_1219-21kworker/1:223:31:521
121750390irq/30-eth0_g0_1219-21kworker/1:223:12:451
121750390irq/30-eth0_g0_1219-21kworker/1:223:12:451
121750390irq/30-eth0_g0_1219-21kworker/1:200:29:151
121750390irq/30-eth0_g0_121ksoftirqd/123:42:451
121750390irq/30-eth0_g0_121ksoftirqd/123:30:021
121750390irq/30-eth0_g0_121ksoftirqd/122:08:431
121650390irq/29-eth0_g0_17355-21proc_pri23:22:060
121650390irq/29-eth0_g0_13-21kworker/0:122:28:350
121650390irq/29-eth0_g0_13-21kworker/0:122:19:160
121650390irq/29-eth0_g0_13-21kworker/0:100:35:110
121650390irq/29-eth0_g0_13-21kworker/0:100:35:110
121650390irq/29-eth0_g0_13-21kworker/0:100:12:130
121650390irq/29-eth0_g0_13-21kworker/0:100:12:130
121390ksoftirqd/1121750irq/30-eth0_g0_23:53:330
121390ksoftirqd/1121750irq/30-eth0_g0_22:55:050
121390ksoftirqd/1121750irq/30-eth0_g0_00:29:010
121390ksoftirqd/1121650irq/29-eth0_g0_23:56:071
121390ksoftirqd/1121650irq/29-eth0_g0_20:43:341
41350380irq/23-fsldma-c10100-21/usr/sbin/munin20:42:090
1913699381cyclictest4073-21unixbench_multi22:27:101
1913699380cyclictest0-21swapper/121:41:461
121750380irq/30-eth0_g0_1219-21kworker/1:222:56:301
121750380irq/30-eth0_g0_1219-21kworker/1:222:32:581
121750380irq/30-eth0_g0_1219-21kworker/1:222:13:471
121750380irq/30-eth0_g0_121ksoftirqd/123:04:451
121650380irq/29-eth0_g0_31ksoftirqd/023:11:480
121650380irq/29-eth0_g0_31ksoftirqd/023:11:480
121650380irq/29-eth0_g0_13-21kworker/0:121:24:130
121650380irq/29-eth0_g0_13-21kworker/0:121:17:070
121380ksoftirqd/1121750irq/30-eth0_g0_21:30:200
121380ksoftirqd/1121750irq/30-eth0_g0_19:20:110
121380ksoftirqd/1121650irq/29-eth0_g0_23:25:001
121380ksoftirqd/1121650irq/29-eth0_g0_21:06:421
121380ksoftirqd/1121650irq/29-eth0_g0_19:10:081
1913699372cyclictest9511-21grep20:37:051
1913699371cyclictest7102-21unixbench_singl20:27:091
1913699371cyclictest5880-21unixbench_singl20:22:091
121750370irq/30-eth0_g0_1219-21kworker/1:200:23:221
121650370irq/29-eth0_g0_23753-21vmstat23:47:090
121650370irq/29-eth0_g0_1964-21runrttasks23:02:040
121650370irq/29-eth0_g0_1964-21runrttasks20:58:570
121650370irq/29-eth0_g0_13-21kworker/0:123:58:410
121650370irq/29-eth0_g0_13-21kworker/0:122:00:190
121650370irq/29-eth0_g0_13-21kworker/0:100:06:490
19136993630cyclictest1964-21runrttasks20:08:561
1913699361cyclictest7029-21cat22:41:471
121750360irq/30-eth0_g0_13425-21taskset20:53:451
121650360irq/29-eth0_g0_26046-21unixbench_singl19:32:090
121650360irq/29-eth0_g0_24660-21sendmail_mailqu19:27:060
121650360irq/29-eth0_g0_1964-21runrttasks19:53:030
121650360irq/29-eth0_g0_1964-21runrttasks19:08:590
121650360irq/29-eth0_g0_18910-21runrttasks19:04:161
121650360irq/29-eth0_g0_121ksoftirqd/100:35:091
121650360irq/29-eth0_g0_121ksoftirqd/100:35:091
121650360irq/29-eth0_g0_10012-21latency_hist20:41:460
121360ksoftirqd/1121650irq/29-eth0_g0_19:47:131
1913699351cyclictest900-21grep20:02:161
121750350irq/30-eth0_g0_8692-21seq20:35:471
121750350irq/30-eth0_g0_8692-21seq20:35:471
121750350irq/30-eth0_g0_4433-21wc20:17:061
121650350irq/29-eth0_g0_7992-21netstat20:32:050
121650350irq/29-eth0_g0_7992-21netstat20:32:050
121650350irq/29-eth0_g0_6876-21proc_pri20:27:060
121650350irq/29-eth0_g0_662-21ntp_offset20:02:120
121650350irq/29-eth0_g0_3972-21egrep20:16:580
121650350irq/29-eth0_g0_31703-21if_eth019:57:030
121650350irq/29-eth0_g0_2163-21grep20:07:100
121650350irq/29-eth0_g0_12705-21taskset20:51:590
121650350irq/29-eth0_g0_0-21swapper/020:22:010
121350ksoftirqd/1121750irq/30-eth0_g0_20:11:570
121750340irq/30-eth0_g0_32173-21unixbench_singl19:57:111
121750340irq/30-eth0_g0_1913699cyclictest20:57:031
121750340irq/30-eth0_g0_0-21swapper/119:51:591
121650340irq/29-eth0_g0_29186-21df_inode19:46:560
121650340irq/29-eth0_g0_28274-21proc_pri19:42:050
121650340irq/29-eth0_g0_26585-21/usr/sbin/munin19:37:010
121650340irq/29-eth0_g0_11746-21open_inodes20:47:040
121650340irq/29-eth0_g0_0-21swapper/019:22:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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