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2025-11-10 - 14:19

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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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 Nov 10, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1664621630sleep1451750irq/29-eth0_g0_09:19:271
1211000ksoftirqd/1451850irq/30-eth0_g0_10:02:291
121870ksoftirqd/1451750irq/29-eth0_g0_10:08:311
295062750chrt451750irq/29-eth0_g0_12:23:480
324062740sleep1451850irq/30-eth0_g0_12:34:471
191832710sleep1451850irq/30-eth0_g0_11:39:541
67142630sleep1451750irq/29-eth0_g0_10:49:491
121560ksoftirqd/1451850irq/30-eth0_g0_10:36:231
213022540sleep0451850irq/30-eth0_g0_09:36:330
121520ksoftirqd/1451850irq/30-eth0_g0_11:31:091
451750470irq/29-eth0_g0_2017-21sendmail_mailqu10:29:541
451750470irq/29-eth0_g0_2017-21sendmail_mailqu10:29:541
451750470irq/29-eth0_g0_0-21swapper/111:02:131
121460ksoftirqd/1451750irq/29-eth0_g0_11:38:410
121460ksoftirqd/1451750irq/29-eth0_g0_11:38:410
451850450irq/30-eth0_g0_16847-21unixbench_multi11:29:550
451750450irq/29-eth0_g0_470-21kworker/1:111:25:251
23512450chrt451750irq/29-eth0_g0_10:31:240
23512450chrt451750irq/29-eth0_g0_10:31:240
451850440irq/30-eth0_g0_1955-21runrttasks10:05:040
451750440irq/29-eth0_g0_470-21kworker/1:110:18:341
451750440irq/29-eth0_g0_3934-21/usr/sbin/munin10:39:461
451750440irq/29-eth0_g0_22358-21cpu11:54:431
451750440irq/29-eth0_g0_0-21swapper/111:19:311
451850430irq/30-eth0_g0_31ksoftirqd/010:42:210
451850430irq/30-eth0_g0_13727-21/usr/sbin/munin09:04:520
451750430irq/29-eth0_g0_470-21kworker/1:111:54:021
121430ksoftirqd/1451750irq/29-eth0_g0_11:09:451
121430ksoftirqd/1451750irq/29-eth0_g0_08:34:311
451850420irq/30-eth0_g0_31149-21taskset10:17:060
451850420irq/30-eth0_g0_31ksoftirqd/010:54:540
451850420irq/30-eth0_g0_31ksoftirqd/010:10:260
451850420irq/30-eth0_g0_31ksoftirqd/009:26:080
451850420irq/30-eth0_g0_13-21kworker/0:111:57:390
451850420irq/30-eth0_g0_13-21kworker/0:109:55:040
451750420irq/29-eth0_g0_470-21kworker/1:109:42:061
451750420irq/29-eth0_g0_18517-21memory07:04:451
451750420irq/29-eth0_g0_121ksoftirqd/110:28:251
451750420irq/29-eth0_g0_0-21swapper/112:29:551
121420ksoftirqd/1451850irq/30-eth0_g0_11:21:121
451850410irq/30-eth0_g0_31ksoftirqd/010:47:530
451850410irq/30-eth0_g0_14124-21ntpq11:19:480
451850410irq/30-eth0_g0_13-21kworker/0:110:27:030
451850410irq/30-eth0_g0_1019-21sendmail_mailqu08:04:510
451750410irq/29-eth0_g0_470-21kworker/1:109:30:321
451750410irq/29-eth0_g0_470-21kworker/1:109:30:321
451750410irq/29-eth0_g0_121ksoftirqd/111:44:511
121410ksoftirqd/1451750irq/29-eth0_g0_08:44:421
121410ksoftirqd/1451750irq/29-eth0_g0_08:44:421
451850400irq/30-eth0_g0_4921-21vmstat08:19:550
451850400irq/30-eth0_g0_31035-21sendmail_mailst07:54:570
451850400irq/30-eth0_g0_31ksoftirqd/011:03:530
451850400irq/30-eth0_g0_25454-21unixbench_singl12:04:550
451850400irq/30-eth0_g0_14200-21diskmemload12:38:000
451850400irq/30-eth0_g0_13-21kworker/0:112:25:260
451850400irq/30-eth0_g0_13-21kworker/0:112:25:260
451850400irq/30-eth0_g0_13-21kworker/0:112:13:160
451850400irq/30-eth0_g0_13-21kworker/0:111:49:450
451850400irq/30-eth0_g0_13-21kworker/0:111:41:300
451850400irq/30-eth0_g0_13-21kworker/0:111:28:340
451850400irq/30-eth0_g0_13-21kworker/0:109:39:530
451850400irq/30-eth0_g0_13-21kworker/0:109:17:260
451750400irq/29-eth0_g0_470-21kworker/1:109:26:141
451750400irq/29-eth0_g0_29458-21proc_pri10:09:521
451750400irq/29-eth0_g0_27941-21munin-run07:44:301
451750400irq/29-eth0_g0_121ksoftirqd/112:19:131
451750400irq/29-eth0_g0_121ksoftirqd/110:23:261
451750400irq/29-eth0_g0_121ksoftirqd/109:37:481
451750400irq/29-eth0_g0_0-21swapper/112:26:221
451750400irq/29-eth0_g0_0-21swapper/112:26:221
121400ksoftirqd/1451850irq/30-eth0_g0_11:08:421
121400ksoftirqd/1451750irq/29-eth0_g0_12:06:481
451850390irq/30-eth0_g0_31ksoftirqd/011:16:580
451850390irq/30-eth0_g0_2880-21ls08:14:300
451850390irq/30-eth0_g0_13-21kworker/0:112:33:260
451850390irq/30-eth0_g0_13-21kworker/0:111:48:060
451850390irq/30-eth0_g0_13-21kworker/0:111:09:070
451850390irq/30-eth0_g0_13-21kworker/0:110:49:450
451850390irq/30-eth0_g0_13-21kworker/0:110:01:380
451850390irq/30-eth0_g0_13-21kworker/0:109:20:140
451850390irq/30-eth0_g0_13-21kworker/0:109:11:530
451750390irq/29-eth0_g0_5751-21wc10:44:571
451750390irq/29-eth0_g0_470-21kworker/1:112:23:121
451750390irq/29-eth0_g0_0-21swapper/109:58:151
121390ksoftirqd/1451750irq/29-eth0_g0_09:13:081
121390ksoftirqd/1451750irq/29-eth0_g0_08:57:001
121390ksoftirqd/1451750irq/29-eth0_g0_08:36:261
451850380irq/30-eth0_g0_28225-21seq07:44:450
451850380irq/30-eth0_g0_21975-21df_abs07:19:420
451850380irq/30-eth0_g0_13-21kworker/0:112:16:270
451850380irq/30-eth0_g0_13-21kworker/0:112:00:010
451850380irq/30-eth0_g0_13-21kworker/0:111:11:540
451850380irq/30-eth0_g0_13-21kworker/0:110:39:230
451850380irq/30-eth0_g0_13-21kworker/0:110:20:470
451850380irq/30-eth0_g0_13-21kworker/0:109:51:100
451850380irq/30-eth0_g0_13-21kworker/0:109:47:050
451850380irq/30-eth0_g0_13-21kworker/0:109:47:050
451750380irq/29-eth0_g0_24600-21latency07:29:451
451750380irq/29-eth0_g0_24600-21latency07:29:451
451750380irq/29-eth0_g0_13198-21df_abs09:04:421
451750380irq/29-eth0_g0_121ksoftirqd/112:01:561
451750380irq/29-eth0_g0_0-21swapper/111:35:341
451750380irq/29-eth0_g0_0-21swapper/111:35:341
121380ksoftirqd/1451750irq/29-eth0_g0_09:20:271
121380ksoftirqd/1451750irq/29-eth0_g0_08:43:221
121380ksoftirqd/1451750irq/29-eth0_g0_08:26:021
451850370irq/30-eth0_g0_9894-21missed_timers08:44:410
451850370irq/30-eth0_g0_9894-21missed_timers08:44:410
451750370irq/29-eth0_g0_470-21kworker/1:109:45:241
451750370irq/29-eth0_g0_470-21kworker/1:109:45:241
451750370irq/29-eth0_g0_3640-21grep08:14:531
451750370irq/29-eth0_g0_13-21kworker/0:109:34:200
451750370irq/29-eth0_g0_13-21kworker/0:109:34:200
451750370irq/29-eth0_g0_11239-21taskset08:54:301
451850360irq/30-eth0_g0_7013-21/usr/sbin/munin08:29:480
451850360irq/30-eth0_g0_18550-21sort07:04:460
451750360irq/29-eth0_g0_7615-21/usr/sbin/munin10:54:461
451750360irq/29-eth0_g0_470-21kworker/1:109:53:581
451750360irq/29-eth0_g0_22578-21grep07:19:521
451750360irq/29-eth0_g0_1955-21runrttasks07:13:021
451750360irq/29-eth0_g0_0-21swapper/112:09:481
451850350irq/30-eth0_g0_8135-21latency08:34:460
451850350irq/30-eth0_g0_32374-21seq07:59:530
451850350irq/30-eth0_g0_26272-21sed07:34:540
451850350irq/30-eth0_g0_23437-21missed_timers07:24:480
451750350irq/29-eth0_g0_2286-21sendmail_mailst08:09:541
451750350irq/29-eth0_g0_21284-21timerandwakeup07:14:521
451750350irq/29-eth0_g0_21208-21awk07:14:510
451750350irq/29-eth0_g0_1955-21runrttasks08:19:551
451750350irq/29-eth0_g0_1955-21runrttasks08:06:311
451750350irq/29-eth0_g0_1955-21runrttasks07:59:091
451750350irq/29-eth0_g0_1955-21runrttasks07:48:201
451750350irq/29-eth0_g0_1955-21runrttasks07:36:081
451750350irq/29-eth0_g0_0-21swapper/107:24:451
451850340irq/30-eth0_g0_29928-21sed07:49:530
451850340irq/30-eth0_g0_26812-21/usr/sbin/munin07:39:460
451850340irq/30-eth0_g0_20157-21unixbench_singl07:09:530
451850340irq/30-eth0_g0_1955-21runrttasks09:00:080
451850340irq/30-eth0_g0_1955-21runrttasks08:55:260
451850340irq/30-eth0_g0_1955-21runrttasks08:39:350
451850340irq/30-eth0_g0_0-21swapper/008:26:300
451850340irq/30-eth0_g0_0-21swapper/008:15:550
451750340irq/29-eth0_g0_404-21latency_hist08:04:311
451750340irq/29-eth0_g0_0-21swapper/107:49:431
451850330irq/30-eth0_g0_1955-21runrttasks08:49:430
451750330irq/29-eth0_g0_12753-21runrttasks09:01:581
451750320irq/29-eth0_g0_25393-21runrttasks07:33:240
451750320irq/29-eth0_g0_25393-21runrttasks07:33:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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