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2025-12-02 - 16:43

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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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 100 highest latencies:
System rack3slot5s.osadl.org (updated Tue Dec 02, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2843321230sleep03044950irq/29-eth0_g0_11:06:430
1211130ksoftirqd/13045050irq/30-eth0_g0_11:40:241
1211130ksoftirqd/13045050irq/30-eth0_g0_11:40:241
1878521120sleep13045050irq/30-eth0_g0_08:05:131
1211030ksoftirqd/13045050irq/30-eth0_g0_11:16:481
121890ksoftirqd/13044950irq/29-eth0_g0_11:35:070
121880ksoftirqd/13045050irq/30-eth0_g0_09:07:280
121840ksoftirqd/13045050irq/30-eth0_g0_07:47:340
121800ksoftirqd/13044950irq/29-eth0_g0_09:00:101
67622790sleep13044950irq/29-eth0_g0_11:33:291
130522790sleep13045050irq/30-eth0_g0_10:30:001
121790ksoftirqd/1206632sleep012:06:290
40502780sleep03045050irq/30-eth0_g0_08:49:450
198232780sleep13045050irq/30-eth0_g0_10:45:111
121780ksoftirqd/13044950irq/29-eth0_g0_08:30:111
70252770sleep13045050irq/30-eth0_g0_08:55:151
36832770sleep13045050irq/30-eth0_g0_11:25:091
307822770sleep03045050irq/30-eth0_g0_09:54:470
8762760sleep13044950irq/29-eth0_g0_12:37:451
161332760sleep13045050irq/30-eth0_g0_09:18:451
45402750sleep13045050irq/30-eth0_g0_07:30:381
324992750sleep03045050irq/30-eth0_g0_11:16:310
314882750sleep03045050irq/30-eth0_g0_08:36:220
233382750sleep03045050irq/30-eth0_g0_12:13:570
222082750sleep13045050irq/30-eth0_g0_10:51:281
67952740sleep03045050irq/30-eth0_g0_07:36:250
198622740sleep03045050irq/30-eth0_g0_10:45:200
145102730sleep03045050irq/30-eth0_g0_10:33:340
317142710sleep13045050irq/30-eth0_g0_09:55:201
126782710sleep13045050irq/30-eth0_g0_11:47:271
116672700sleep13044950irq/29-eth0_g0_09:07:211
248842690sleep13045050irq/30-eth0_g0_08:20:081
121690ksoftirqd/1219512sleep009:32:230
308452680chrt3045050irq/30-eth0_g0_12:31:031
187062670sleep03045050irq/30-eth0_g0_10:43:540
121660ksoftirqd/13044950irq/29-eth0_g0_11:55:081
121640ksoftirqd/183482sleep010:18:370
81652630sleep13044950irq/29-eth0_g0_11:35:541
121630ksoftirqd/1242142chrt08:19:540
181852610sleep13045050irq/30-eth0_g0_09:23:451
153712610sleep03045050irq/30-eth0_g0_10:35:080
53982590sleep03045050irq/30-eth0_g0_11:30:020
227442590sleep13045050irq/30-eth0_g0_09:35:001
121590ksoftirqd/1172992sleep011:59:270
199922560sleep03045050irq/30-eth0_g0_08:09:470
141872560chrt3045050irq/30-eth0_g0_09:14:121
121560ksoftirqd/1151402sleep011:54:030
233042550sleep13045050irq/30-eth0_g0_10:55:021
204192540sleep13045050irq/30-eth0_g0_09:29:281
71242530sleep13045050irq/30-eth0_g0_07:37:431
283012520sleep13044950irq/29-eth0_g0_09:48:061
25872520sleep03044950irq/29-eth0_g0_10:04:570
175362520chrt3045050irq/30-eth0_g0_08:03:121
192742510chrt3045050irq/30-eth0_g0_12:04:071
118902510sleep13044950irq/29-eth0_g0_10:26:211
5282500sleep03045050irq/30-eth0_g0_12:36:220
121490ksoftirqd/13045050irq/30-eth0_g0_11:00:131
278222480sleep13044950irq/29-eth0_g0_08:28:111
121480ksoftirqd/13045050irq/30-eth0_g0_11:45:100
121480ksoftirqd/13044950irq/29-eth0_g0_09:51:331
290702470sleep13045050irq/30-eth0_g0_11:09:151
186472470sleep13045050irq/30-eth0_g0_10:43:391
121470ksoftirqd/13045050irq/30-eth0_g0_10:03:561
121470ksoftirqd/13045050irq/30-eth0_g0_07:08:071
300572460sleep13045050irq/30-eth0_g0_07:15:001
121460ksoftirqd/13044950irq/29-eth0_g0_12:23:231
3044950450irq/29-eth0_g0_121ksoftirqd/110:15:021
121450ksoftirqd/13044950irq/29-eth0_g0_12:07:011
121450ksoftirqd/13044950irq/29-eth0_g0_10:54:010
121450ksoftirqd/13044950irq/29-eth0_g0_09:25:200
121450ksoftirqd/13044950irq/29-eth0_g0_08:49:421
121450ksoftirqd/1106052sleep010:24:250
3045050440irq/30-eth0_g0_2175-21runrttasks07:08:410
189002440sleep03044950irq/29-eth0_g0_12:02:380
55082430sleep13045050irq/30-eth0_g0_10:10:311
55082430sleep13045050irq/30-eth0_g0_10:10:311
3044950430irq/29-eth0_g0_22036-21taskset12:10:081
3044950430irq/29-eth0_g0_121ksoftirqd/112:25:041
3044950430irq/29-eth0_g0_0-21swapper/110:20:091
121430ksoftirqd/13044950irq/29-eth0_g0_10:35:501
3045050420irq/30-eth0_g0_26076-21cat12:20:050
3045050420irq/30-eth0_g0_13-21kworker/0:112:29:530
3045050420irq/30-eth0_g0_13-21kworker/0:109:16:480
3044950420irq/29-eth0_g0_31ksoftirqd/010:00:000
3044950420irq/29-eth0_g0_121ksoftirqd/111:23:001
121420ksoftirqd/13045050irq/30-eth0_g0_09:10:400
45102410sleep03045050irq/30-eth0_g0_11:27:440
3045050410irq/30-eth0_g0_5781-21chrt08:53:270
3045050410irq/30-eth0_g0_311872sleep111:14:291
3045050410irq/30-eth0_g0_31ksoftirqd/011:19:500
3045050410irq/30-eth0_g0_24104-21chrt08:19:460
3045050410irq/30-eth0_g0_1991-21taskset08:44:470
3045050410irq/30-eth0_g0_16932-21ntp_offset09:20:060
3045050410irq/30-eth0_g0_13-21kworker/0:111:10:050
3044950410irq/29-eth0_g0_121ksoftirqd/109:34:241
121410ksoftirqd/13045050irq/30-eth0_g0_08:12:490
121410ksoftirqd/13044950irq/29-eth0_g0_09:41:511
121410ksoftirqd/13044950irq/29-eth0_g0_08:51:011
121410ksoftirqd/13044950irq/29-eth0_g0_08:13:191
121410ksoftirqd/13044950irq/29-eth0_g0_07:28:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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