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2026-07-22 - 20:15

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 Wed Jul 22, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
501621550sleep1121750irq/30-eth0_g0_10:49:541
2407621500sleep1121750irq/30-eth0_g0_09:56:351
362921280sleep1121750irq/30-eth0_g0_10:43:001
121910ksoftirqd/1121750irq/30-eth0_g0_09:40:401
121900ksoftirqd/1121750irq/30-eth0_g0_08:10:041
121710ksoftirqd/1121750irq/30-eth0_g0_08:58:231
121640ksoftirqd/1121750irq/30-eth0_g0_11:33:331
121600ksoftirqd/1121650irq/29-eth0_g0_09:22:541
121580ksoftirqd/1121750irq/30-eth0_g0_09:07:461
136882560chrt121750irq/30-eth0_g0_11:25:481
306492550sleep0121650irq/29-eth0_g0_12:33:090
14836995313cyclictest19156-21sendmail_mailst07:22:571
121530ksoftirqd/1121750irq/30-eth0_g0_12:04:491
74372520chrt121750irq/30-eth0_g0_10:59:300
121750520irq/30-eth0_g0_1483699cyclictest12:27:511
121750520irq/30-eth0_g0_1483699cyclictest12:27:511
121500ksoftirqd/1121750irq/30-eth0_g0_07:42:571
14836994914cyclictest9044-21runrttasks08:53:051
121750490irq/30-eth0_g0_1483699cyclictest11:12:241
121650490irq/29-eth0_g0_1483699cyclictest12:23:301
121650490irq/29-eth0_g0_1483699cyclictest09:42:521
121650490irq/29-eth0_g0_1483699cyclictest09:02:581
121490ksoftirqd/1121750irq/30-eth0_g0_10:42:041
121490ksoftirqd/1121750irq/30-eth0_g0_09:44:590
121490ksoftirqd/1121650irq/29-eth0_g0_09:57:591
320452480sleep1121650irq/29-eth0_g0_10:27:531
227982480sleep1121750irq/30-eth0_g0_09:51:011
227982480sleep1121750irq/30-eth0_g0_09:51:011
14836994811cyclictest8090-21chrt08:51:151
14836994810cyclictest31466-21chrt10:26:511
121480ksoftirqd/1121750irq/30-eth0_g0_09:15:101
274242470sleep1121750irq/30-eth0_g0_07:57:501
14836994716cyclictest1219-21kworker/1:211:37:481
14836994711cyclictest29208-21chrt08:03:241
14836994711cyclictest183242sleep107:20:221
14836994710cyclictest20655-21chrt07:28:561
121470ksoftirqd/1121750irq/30-eth0_g0_12:00:130
121470ksoftirqd/1121750irq/30-eth0_g0_11:34:540
121470ksoftirqd/1121750irq/30-eth0_g0_10:26:430
121470ksoftirqd/1121750irq/30-eth0_g0_10:19:230
1483699469cyclictest197992sleep111:50:291
14836994617cyclictest17323-21latency_hist07:17:361
14836994616cyclictest243492sleep112:07:561
14836994616cyclictest2057-21runrttasks08:27:331
14836994614cyclictest21438-21/usr/sbin/munin07:32:521
14836994614cyclictest21094-21runrttasks11:56:161
14836994610cyclictest31820-21chrt08:15:131
121650460irq/29-eth0_g0_1483699cyclictest12:16:421
121650460irq/29-eth0_g0_1483699cyclictest11:05:211
121650460irq/29-eth0_g0_13-21kworker/0:111:30:300
121650460irq/29-eth0_g0_13-21kworker/0:109:48:130
121650460irq/29-eth0_g0_13-21kworker/0:109:48:130
121460ksoftirqd/1121750irq/30-eth0_g0_11:28:411
121460ksoftirqd/1121650irq/29-eth0_g0_11:13:571
14836994511cyclictest3844-21proc_pri08:32:551
14836994511cyclictest2528-21/usr/sbin/munin08:27:521
14836994511cyclictest1219-21kworker/1:209:36:001
1483699449cyclictest159902sleep107:11:461
14836994417cyclictest1964-21runrttasks12:00:381
14836994417cyclictest0-21swapper/112:21:551
14836994416cyclictest30151-21runrttasks10:20:501
14836994415cyclictest6374-21runrttasks10:56:251
14836994412cyclictest1219-21kworker/1:209:17:561
121650440irq/29-eth0_g0_1964-21runrttasks10:11:210
121650440irq/29-eth0_g0_13526-21runrttasks11:23:550
121650440irq/29-eth0_g0_13-21kworker/0:109:12:330
121440ksoftirqd/1121750irq/30-eth0_g0_12:19:050
121440ksoftirqd/1121750irq/30-eth0_g0_12:13:320
121440ksoftirqd/1121750irq/30-eth0_g0_11:09:000
121440ksoftirqd/1121750irq/30-eth0_g0_11:06:430
121440ksoftirqd/1121750irq/30-eth0_g0_10:11:141
121440ksoftirqd/1121750irq/30-eth0_g0_09:33:020
14836994314cyclictest29013-21runrttasks10:16:511
14836994312cyclictest7407-21runrttasks10:59:091
14836994311cyclictest22507-21interrupts07:37:501
14836994311cyclictest17746-21seq09:29:181
121650430irq/29-eth0_g0_13-21kworker/0:111:49:120
121650430irq/29-eth0_g0_13-21kworker/0:111:18:190
121650430irq/29-eth0_g0_13-21kworker/0:110:29:570
121650430irq/29-eth0_g0_13-21kworker/0:110:05:320
121650430irq/29-eth0_g0_13-21kworker/0:109:14:280
121650430irq/29-eth0_g0_13-21kworker/0:109:07:350
121430ksoftirqd/1121750irq/30-eth0_g0_11:19:351
121430ksoftirqd/1121750irq/30-eth0_g0_11:15:200
121430ksoftirqd/1121650irq/29-eth0_g0_09:54:240
14836994214cyclictest1439-21runrttasks10:36:181
14836994213cyclictest30697-21runrttasks12:33:441
14836994211cyclictest1219-21kworker/1:210:02:571
14836994211cyclictest1219-21kworker/1:208:42:521
14836994210cyclictest1219-21kworker/1:211:42:481
121650420irq/29-eth0_g0_31424-21sendmail_mailqu08:12:560
121650420irq/29-eth0_g0_23905-21ntp_kernel_pll_07:42:530
121650420irq/29-eth0_g0_1964-21runrttasks10:52:020
121650420irq/29-eth0_g0_13959-21latency07:02:500
121650420irq/29-eth0_g0_13-21kworker/0:112:29:040
121650420irq/29-eth0_g0_13-21kworker/0:112:29:040
121650420irq/29-eth0_g0_13-21kworker/0:110:13:530
121650420irq/29-eth0_g0_13-21kworker/0:109:31:480
121420ksoftirqd/1121750irq/30-eth0_g0_07:58:590
121650410irq/29-eth0_g0_15202-21seq09:18:150
121650410irq/29-eth0_g0_13-21kworker/0:112:10:550
121650410irq/29-eth0_g0_13-21kworker/0:111:44:180
121650410irq/29-eth0_g0_13-21kworker/0:110:42:080
121650410irq/29-eth0_g0_13-21kworker/0:109:58:400
14836994013cyclictest4981-21/usr/sbin/munin08:37:511
14836994012cyclictest32112-21chrt08:17:421
14836994012cyclictest26753-21runrttasks07:53:251
14836994012cyclictest26753-21runrttasks07:53:251
14836994011cyclictest25788-21taskset07:51:281
14836994011cyclictest25788-21taskset07:51:281
121650400irq/29-eth0_g0_1964-21runrttasks07:14:510
121650400irq/29-eth0_g0_13-21kworker/0:112:23:590
121650400irq/29-eth0_g0_13-21kworker/0:112:07:100
121650400irq/29-eth0_g0_13-21kworker/0:110:57:320
121650400irq/29-eth0_g0_13-21kworker/0:110:46:050
121400ksoftirqd/1121750irq/30-eth0_g0_11:38:500
121400ksoftirqd/1121750irq/30-eth0_g0_08:52:050
121400ksoftirqd/1121750irq/30-eth0_g0_08:33:240
121400ksoftirqd/1121750irq/30-eth0_g0_08:07:220
121650390irq/29-eth0_g0_13-21kworker/0:110:33:560
121650390irq/29-eth0_g0_0-21swapper/008:52:570
121390ksoftirqd/1121750irq/30-eth0_g0_09:40:530
121390ksoftirqd/1121750irq/30-eth0_g0_09:01:000
121390ksoftirqd/1121750irq/30-eth0_g0_08:20:580
121390ksoftirqd/1121750irq/30-eth0_g0_07:54:040
121390ksoftirqd/1121750irq/30-eth0_g0_07:54:040
121390ksoftirqd/1121750irq/30-eth0_g0_07:51:550
121390ksoftirqd/1121750irq/30-eth0_g0_07:51:550
121390ksoftirqd/1121750irq/30-eth0_g0_07:27:170
121390ksoftirqd/1121750irq/30-eth0_g0_07:09:030
121750380irq/30-eth0_g0_14225-21sendmail_mailqu07:02:551
121650380irq/29-eth0_g0_13-21kworker/0:111:53:030
121380ksoftirqd/1121750irq/30-eth0_g0_09:26:120
121380ksoftirqd/1121750irq/30-eth0_g0_08:45:350
121380ksoftirqd/1121750irq/30-eth0_g0_08:38:250
121380ksoftirqd/1121750irq/30-eth0_g0_08:31:320
121380ksoftirqd/1121750irq/30-eth0_g0_08:12:170
121650370irq/29-eth0_g0_18016-21unixbench_multi07:17:560
121370ksoftirqd/1121750irq/30-eth0_g0_08:24:560
121650360irq/29-eth0_g0_22669-21ntp_kernel_err07:37:520
121650350irq/29-eth0_g0_21719-21unixbench_multi07:32:570
121650350irq/29-eth0_g0_20476-21unixbench_multi07:27:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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