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2026-01-11 - 17:49

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 Sun Jan 11, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1006121450sleep1121650irq/29-eth0_g0_10:21:501
1006121450sleep1121650irq/29-eth0_g0_10:21:501
2963621240sleep1121650irq/29-eth0_g0_11:41:261
1211030ksoftirqd/1121750irq/30-eth0_g0_12:24:520
121890ksoftirqd/1121650irq/29-eth0_g0_11:30:050
121860ksoftirqd/1121650irq/29-eth0_g0_10:31:190
29062740sleep0121750irq/30-eth0_g0_09:54:080
121740ksoftirqd/1121750irq/30-eth0_g0_09:13:311
121630ksoftirqd/1247142sleep011:21:140
39422590chrt121750irq/30-eth0_g0_09:56:550
74332580sleep1121750irq/30-eth0_g0_12:25:201
121510ksoftirqd/1121750irq/30-eth0_g0_12:25:140
121510ksoftirqd/1121750irq/30-eth0_g0_11:12:111
121510ksoftirqd/1121750irq/30-eth0_g0_10:35:001
121510ksoftirqd/1121750irq/30-eth0_g0_10:12:461
86622490sleep1121750irq/30-eth0_g0_12:30:231
121480ksoftirqd/1121750irq/30-eth0_g0_12:03:440
121480ksoftirqd/1121750irq/30-eth0_g0_11:28:081
121480ksoftirqd/1121750irq/30-eth0_g0_11:00:541
121480ksoftirqd/1121750irq/30-eth0_g0_11:00:541
121470ksoftirqd/1121750irq/30-eth0_g0_10:45:030
121470ksoftirqd/1121750irq/30-eth0_g0_10:16:271
121470ksoftirqd/1121650irq/29-eth0_g0_10:42:041
121460ksoftirqd/1121750irq/30-eth0_g0_09:28:301
121460ksoftirqd/1121650irq/29-eth0_g0_10:36:540
121750450irq/30-eth0_g0_470-21kworker/1:111:47:221
121650450irq/29-eth0_g0_26749-21sendmail_mailqu07:05:130
121450ksoftirqd/1121650irq/29-eth0_g0_12:38:161
121450ksoftirqd/1121650irq/29-eth0_g0_07:25:581
121750440irq/30-eth0_g0_470-21kworker/1:111:50:341
121750440irq/30-eth0_g0_31ksoftirqd/009:15:080
121440ksoftirqd/1121750irq/30-eth0_g0_12:09:400
121440ksoftirqd/1121750irq/30-eth0_g0_07:59:461
121750430irq/30-eth0_g0_470-21kworker/1:110:56:541
121430ksoftirqd/1121750irq/30-eth0_g0_12:17:561
121430ksoftirqd/1121750irq/30-eth0_g0_11:49:020
121430ksoftirqd/1121650irq/29-eth0_g0_10:50:131
121430ksoftirqd/1121650irq/29-eth0_g0_10:25:331
121430ksoftirqd/1121650irq/29-eth0_g0_10:00:311
121430ksoftirqd/1121650irq/29-eth0_g0_08:50:091
2735599422cyclictest23129-21wc11:15:111
2735599422cyclictest23129-21wc11:15:111
185162420sleep0121750irq/30-eth0_g0_10:55:250
121750420irq/30-eth0_g0_470-21kworker/1:110:06:101
121650420irq/29-eth0_g0_1988-21runrttasks11:00:470
121650420irq/29-eth0_g0_1988-21runrttasks11:00:470
121650420irq/29-eth0_g0_121ksoftirqd/112:11:190
121420ksoftirqd/1121750irq/30-eth0_g0_09:27:220
27355994128cyclictest1988-21runrttasks08:48:091
27355994127cyclictest1988-21runrttasks08:31:341
27355994127cyclictest1988-21runrttasks08:31:341
2735599412cyclictest28102-21grep11:35:111
121750410irq/30-eth0_g0_470-21kworker/1:111:32:541
121410ksoftirqd/1121650irq/29-eth0_g0_09:41:101
121410ksoftirqd/1121650irq/29-eth0_g0_09:15:081
27355994026cyclictest1988-21runrttasks08:19:491
2735599402cyclictest2483-21unixbench_multi09:50:131
121650400irq/29-eth0_g0_24689-21irqstats09:10:060
121400ksoftirqd/1121750irq/30-eth0_g0_10:29:330
2735599392cyclictest1988-21runrttasks08:43:151
2735599391cyclictest15918-21sort10:45:141
121750390irq/30-eth0_g0_812-21iostat09:45:061
121750390irq/30-eth0_g0_470-21kworker/1:112:06:281
121650390irq/29-eth0_g0_1988-21runrttasks09:34:430
121650390irq/29-eth0_g0_1988-21runrttasks07:35:570
121650390irq/29-eth0_g0_1988-21runrttasks07:35:570
121650390irq/29-eth0_g0_13-21kworker/0:111:41:100
121650390irq/29-eth0_g0_13-21kworker/0:110:01:020
121650390irq/29-eth0_g0_121ksoftirqd/109:23:550
121390ksoftirqd/1121750irq/30-eth0_g0_12:19:500
121390ksoftirqd/1121750irq/30-eth0_g0_11:25:460
121390ksoftirqd/1121750irq/30-eth0_g0_11:17:250
121390ksoftirqd/1121750irq/30-eth0_g0_11:17:250
121390ksoftirqd/1121750irq/30-eth0_g0_10:41:540
121390ksoftirqd/1121750irq/30-eth0_g0_07:24:380
27355993810cyclictest20216-21/usr/sbin/munin11:05:111
2735599381cyclictest294152sleep109:30:031
2735599380cyclictest0-21swapper/112:00:111
121750380irq/30-eth0_g0_470-21kworker/1:111:21:031
121750380irq/30-eth0_g0_31ksoftirqd/010:15:150
121750380irq/30-eth0_g0_13-21kworker/0:109:40:120
121750380irq/30-eth0_g0_0-21swapper/111:55:211
121650380irq/29-eth0_g0_6149-21unixbench_multi10:05:140
121650380irq/29-eth0_g0_547-21sed07:30:140
121650380irq/29-eth0_g0_31ksoftirqd/012:38:050
121650380irq/29-eth0_g0_28104-21grep11:35:110
121650380irq/29-eth0_g0_2735499cyclictest11:55:400
121650380irq/29-eth0_g0_13-21kworker/0:111:14:100
121650380irq/29-eth0_g0_13-21kworker/0:111:05:210
121650380irq/29-eth0_g0_13-21kworker/0:109:38:060
121380ksoftirqd/1121750irq/30-eth0_g0_09:47:240
121380ksoftirqd/1121750irq/30-eth0_g0_08:54:480
121380ksoftirqd/1121750irq/30-eth0_g0_08:46:270
121380ksoftirqd/1121750irq/30-eth0_g0_08:02:030
121380ksoftirqd/1121750irq/30-eth0_g0_07:19:200
121380ksoftirqd/1121650irq/29-eth0_g0_07:40:071
2735599372cyclictest221862sleep109:00:061
2735599371cyclictest5231-21ntp_states07:50:101
2735599371cyclictest301272sleep107:20:051
2735599371cyclictest12582-21/usr/sbin/munin08:20:101
2735599371cyclictest12582-21/usr/sbin/munin08:20:101
2735599371cyclictest10870-21munin-run08:14:521
121750370irq/30-eth0_g0_470-21kworker/1:109:57:251
121750370irq/30-eth0_g0_470-21kworker/1:109:23:241
121650370irq/29-eth0_g0_3674-21df_abs07:45:030
121650370irq/29-eth0_g0_27203-21sshd07:08:151
121650370irq/29-eth0_g0_13-21kworker/0:110:10:050
121370ksoftirqd/1121750irq/30-eth0_g0_10:20:000
121370ksoftirqd/1121750irq/30-eth0_g0_10:20:000
2735599362cyclictest1988-21runrttasks08:39:471
2735599362cyclictest13571-21df_inode08:25:061
2735599362cyclictest13571-21df_inode08:25:061
2735599361cyclictest32666-21cat07:30:081
2735599361cyclictest2110-21snmpd12:22:551
121750360irq/30-eth0_g0_470-21kworker/1:112:11:181
121650360irq/29-eth0_g0_8511-21/usr/sbin/munin08:05:120
121650360irq/29-eth0_g0_2381-21/usr/sbin/munin07:40:100
121650360irq/29-eth0_g0_1988-21runrttasks07:55:090
121650360irq/29-eth0_g0_1988-21runrttasks07:53:150
121650360irq/29-eth0_g0_1988-21runrttasks07:11:530
121650360irq/29-eth0_g0_16327-21ps08:35:120
121650360irq/29-eth0_g0_13-21kworker/0:112:29:560
121650360irq/29-eth0_g0_13-21kworker/0:111:50:490
121650360irq/29-eth0_g0_13-21kworker/0:110:50:560
121360ksoftirqd/1121750irq/30-eth0_g0_09:36:111
2735599351cyclictest21227-21ps08:55:101
2735599351cyclictest1391-21latency07:35:121
2735599351cyclictest1391-21latency07:35:121
121750350irq/30-eth0_g0_470-21kworker/1:110:30:371
121750350irq/30-eth0_g0_23222-21cpu09:05:031
121650350irq/29-eth0_g0_31414-21taskset07:25:080
121650350irq/29-eth0_g0_21465-21unixbench_singl08:55:130
121650350irq/29-eth0_g0_11967-21runrttasks08:18:230
2735599342cyclictest8748-21irqstats08:05:061
2735599342cyclictest3983-21ntp_kernel_err07:45:081
2735599341cyclictest0-21swapper/108:02:561
121650340irq/29-eth0_g0_29309-21grep07:15:161
121650340irq/29-eth0_g0_13206-21runrttasks08:23:330
121650340irq/29-eth0_g0_13206-21runrttasks08:23:330
121650340irq/29-eth0_g0_0-21swapper/009:00:120
2735599331cyclictest0-21swapper/107:12:041
121650330irq/29-eth0_g0_17624-21wc08:40:120
121650330irq/29-eth0_g0_13476-21seq08:25:050
121650330irq/29-eth0_g0_13476-21seq08:25:050
121650330irq/29-eth0_g0_10409-21unixbench_singl08:10:130
121650320irq/29-eth0_g0_23910-21grep09:05:130
121650320irq/29-eth0_g0_15411-21runrttasks08:30:400
121650320irq/29-eth0_g0_15411-21runrttasks08:30:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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