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2025-12-18 - 06:39

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 Dec 17, 2025 13:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2817821290sleep0121450irq/29-eth0_g0_11:33:410
2817821290sleep0121450irq/29-eth0_g0_11:33:410
1254221060sleep1121450irq/29-eth0_g0_10:30:521
121900ksoftirqd/1121550irq/30-eth0_g0_11:21:331
121870ksoftirqd/1121550irq/30-eth0_g0_11:27:421
121870ksoftirqd/1121450irq/29-eth0_g0_11:37:350
121870ksoftirqd/1121450irq/29-eth0_g0_11:37:350
121820ksoftirqd/1121550irq/30-eth0_g0_10:50:581
77032760sleep1121450irq/29-eth0_g0_07:57:361
77032760sleep1121450irq/29-eth0_g0_07:57:361
299082690sleep0121550irq/30-eth0_g0_09:27:390
121680ksoftirqd/1121550irq/30-eth0_g0_07:32:341
121560ksoftirqd/1121550irq/30-eth0_g0_07:12:450
28652550sleep0121450irq/29-eth0_g0_09:52:080
270062540sleep0121450irq/29-eth0_g0_11:29:200
219772540sleep1121550irq/30-eth0_g0_08:57:281
121540ksoftirqd/1121550irq/30-eth0_g0_12:26:341
168672510sleep0121450irq/29-eth0_g0_10:47:340
121510ksoftirqd/1121550irq/30-eth0_g0_11:45:271
121490ksoftirqd/1121550irq/30-eth0_g0_09:33:571
121450480irq/29-eth0_g0_0-21swapper/007:07:230
121480ksoftirqd/1121550irq/30-eth0_g0_08:06:271
34402470sleep1121450irq/29-eth0_g0_12:06:421
121470ksoftirqd/1121550irq/30-eth0_g0_10:57:370
121470ksoftirqd/1121550irq/30-eth0_g0_10:04:051
265452460sleep0121450irq/29-eth0_g0_09:15:080
121460ksoftirqd/1121550irq/30-eth0_g0_11:30:491
121460ksoftirqd/1121550irq/30-eth0_g0_11:30:491
121550450irq/30-eth0_g0_1221-21kworker/1:209:23:001
121450ksoftirqd/1121550irq/30-eth0_g0_12:19:111
121450ksoftirqd/1121550irq/30-eth0_g0_11:40:281
121450ksoftirqd/1121450irq/29-eth0_g0_11:14:231
121550440irq/30-eth0_g0_1221-21kworker/1:212:00:191
121450440irq/29-eth0_g0_13149-21wc10:32:360
121450440irq/29-eth0_g0_121ksoftirqd/109:50:471
121440ksoftirqd/1121550irq/30-eth0_g0_11:11:020
121440ksoftirqd/1121550irq/30-eth0_g0_10:09:350
121550430irq/30-eth0_g0_1221-21kworker/1:210:28:231
121550430irq/30-eth0_g0_1221-21kworker/1:209:29:181
121550430irq/30-eth0_g0_121ksoftirqd/112:12:251
121550420irq/30-eth0_g0_1221-21kworker/1:209:18:011
121550420irq/30-eth0_g0_121ksoftirqd/110:44:011
121450420irq/29-eth0_g0_1941-21runrttasks12:23:190
121450420irq/29-eth0_g0_13-21kworker/0:112:14:150
121450420irq/29-eth0_g0_121ksoftirqd/112:22:381
121450420irq/29-eth0_g0_10460-21getprofile12:33:090
28302994136cyclictest14425-21awk10:37:351
121450410irq/29-eth0_g0_13-21kworker/0:110:17:340
121450410irq/29-eth0_g0_13-21kworker/0:110:17:340
121450410irq/29-eth0_g0_121ksoftirqd/110:54:430
121410ksoftirqd/1121550irq/30-eth0_g0_10:37:370
121410ksoftirqd/1121450irq/29-eth0_g0_11:55:011
121410ksoftirqd/1121450irq/29-eth0_g0_08:54:511
2830299401cyclictest19809-21ntp_states08:47:341
121550400irq/30-eth0_g0_1221-21kworker/1:211:05:281
121550400irq/30-eth0_g0_1221-21kworker/1:210:11:411
121450400irq/29-eth0_g0_19986-21grep08:47:380
121450400irq/29-eth0_g0_13-21kworker/0:111:05:330
121450400irq/29-eth0_g0_13-21kworker/0:110:24:250
121400ksoftirqd/1121450irq/29-eth0_g0_11:01:081
121400ksoftirqd/1121450irq/29-eth0_g0_09:38:371
121400ksoftirqd/1121450irq/29-eth0_g0_08:39:441
2830299392cyclictest9380-21latency_hist08:04:511
2830299392cyclictest16596-21sort10:47:301
2830299391cyclictest4740-21/usr/sbin/munin07:47:341
2830299391cyclictest4740-21/usr/sbin/munin07:47:341
121550390irq/30-eth0_g0_27372-21cpu07:07:271
121550390irq/30-eth0_g0_1221-21kworker/1:212:39:111
121550390irq/30-eth0_g0_1221-21kworker/1:210:59:051
121550390irq/30-eth0_g0_1221-21kworker/1:209:58:091
121550390irq/30-eth0_g0_0-21swapper/111:17:421
121450390irq/29-eth0_g0_31ksoftirqd/011:03:390
121450390irq/29-eth0_g0_31ksoftirqd/008:57:370
121450390irq/29-eth0_g0_28496-21/usr/sbin/munin09:22:340
121450390irq/29-eth0_g0_2830199cyclictest08:44:090
121450390irq/29-eth0_g0_13-21kworker/0:112:35:420
121450390irq/29-eth0_g0_13-21kworker/0:112:25:310
121450390irq/29-eth0_g0_13-21kworker/0:110:40:530
121450390irq/29-eth0_g0_13-21kworker/0:110:25:550
121450390irq/29-eth0_g0_111372sleep008:12:310
121390ksoftirqd/1121550irq/30-eth0_g0_11:21:370
121390ksoftirqd/1121550irq/30-eth0_g0_10:10:530
121390ksoftirqd/1121550irq/30-eth0_g0_10:00:590
121390ksoftirqd/1121550irq/30-eth0_g0_08:15:060
121390ksoftirqd/1121550irq/30-eth0_g0_08:07:210
121390ksoftirqd/1121450irq/29-eth0_g0_10:21:551
121390ksoftirqd/1121450irq/29-eth0_g0_10:09:341
121390ksoftirqd/1121450irq/29-eth0_g0_09:48:061
121550380irq/30-eth0_g0_1221-21kworker/1:210:17:391
121550380irq/30-eth0_g0_1221-21kworker/1:210:17:391
121450380irq/29-eth0_g0_30217-21open_files11:42:350
121450380irq/29-eth0_g0_1941-21runrttasks08:01:040
121450380irq/29-eth0_g0_1941-21runrttasks07:52:220
121450380irq/29-eth0_g0_1941-21runrttasks07:52:220
121450380irq/29-eth0_g0_13-21kworker/0:112:19:370
121450380irq/29-eth0_g0_13-21kworker/0:109:54:560
121450380irq/29-eth0_g0_13-21kworker/0:109:36:390
121450380irq/29-eth0_g0_13-21kworker/0:109:12:450
121380ksoftirqd/1121550irq/30-eth0_g0_09:08:190
121380ksoftirqd/1121450irq/29-eth0_g0_09:02:011
2830299379cyclictest1221-21kworker/1:211:51:151
2830299372cyclictest9686-21awk12:32:301
2830299372cyclictest29945-21df_abs07:17:281
2830299371cyclictest18884-21unixbench_singl08:42:381
2830299371cyclictest16400-21unixbench_multi08:32:381
2830299371cyclictest15170-21unixbench_multi08:27:381
121550370irq/30-eth0_g0_1221-21kworker/1:211:37:251
121550370irq/30-eth0_g0_1221-21kworker/1:211:37:251
121550370irq/30-eth0_g0_121ksoftirqd/109:13:281
121550370irq/30-eth0_g0_1133-21unixbench_singl09:42:371
121550370irq/30-eth0_g0_1133-21unixbench_singl09:42:371
121450370irq/29-eth0_g0_1941-21runrttasks12:02:100
121450370irq/29-eth0_g0_1941-21runrttasks11:57:010
121450370irq/29-eth0_g0_1941-21runrttasks08:36:210
121450370irq/29-eth0_g0_13-21kworker/0:112:09:260
121450370irq/29-eth0_g0_13-21kworker/0:111:46:400
121450370irq/29-eth0_g0_13-21kworker/0:111:17:310
2830299362cyclictest6514-21mailstats07:52:381
2830299362cyclictest6514-21mailstats07:52:381
2830299362cyclictest2451-21df_inode07:37:291
2830299361cyclictest3517-21/usr/sbin/munin07:42:311
2830299361cyclictest289872sleep107:12:351
121550360irq/30-eth0_g0_31724-21unixbench_singl07:22:391
121450360irq/29-eth0_g0_477-21df09:42:270
121450360irq/29-eth0_g0_477-21df09:42:270
121450360irq/29-eth0_g0_29889-21df_abs07:17:280
121450360irq/29-eth0_g0_1941-21runrttasks08:51:550
121450360irq/29-eth0_g0_1941-21runrttasks08:30:320
121450360irq/29-eth0_g0_1941-21runrttasks07:26:250
121450360irq/29-eth0_g0_13-21kworker/0:111:50:270
121450360irq/29-eth0_g0_13-21kworker/0:109:45:590
121450360irq/29-eth0_g0_13-21kworker/0:109:30:100
2830299351cyclictest32445-21if_err_eth007:27:311
121450350irq/29-eth0_g0_31313-21latency07:22:320
121450350irq/29-eth0_g0_1941-21runrttasks08:27:520
121450350irq/29-eth0_g0_1941-21runrttasks07:37:420
121450350irq/29-eth0_g0_13361-21sed08:22:291
2830299341cyclictest24872-21chrt09:07:381
121450340irq/29-eth0_g0_1941-21runrttasks08:20:470
2830299331cyclictest12314-21latency08:17:321
2830299331cyclictest0-21swapper/108:12:281
121450330irq/29-eth0_g0_3671-21/usr/sbin/munin07:42:310
121450330irq/29-eth0_g0_23327-21latency09:02:310
121450330irq/29-eth0_g0_1941-21runrttasks07:55:200
121450330irq/29-eth0_g0_1941-21runrttasks07:55:200
121450330irq/29-eth0_g0_1348-21memory07:32:320
121450330irq/29-eth0_g0_0-21swapper/007:45:220
121450330irq/29-eth0_g0_0-21swapper/007:45:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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