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2025-12-20 - 21:54

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 all highest latencies:
System rack3slot5s.osadl.org (updated Sat Dec 20, 2025 01:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2292021430sleep1121450irq/29-eth0_g0_00:36:361
1883321340sleep1121450irq/29-eth0_g0_00:17:381
1223221140sleep0121450irq/29-eth0_g0_21:39:200
1211100ksoftirqd/1121550irq/30-eth0_g0_21:02:260
121880ksoftirqd/1121450irq/29-eth0_g0_00:26:430
58372860sleep1121450irq/29-eth0_g0_23:27:071
121840ksoftirqd/1121550irq/30-eth0_g0_23:02:280
121840ksoftirqd/1121550irq/30-eth0_g0_00:17:270
121770ksoftirqd/1121550irq/30-eth0_g0_21:52:531
45772610chrt121550irq/30-eth0_g0_23:21:451
121550ksoftirqd/1121550irq/30-eth0_g0_00:29:001
121520ksoftirqd/1121550irq/30-eth0_g0_22:02:401
121510ksoftirqd/1121550irq/30-eth0_g0_22:54:091
121510ksoftirqd/1121550irq/30-eth0_g0_21:41:461
269542500sleep1121450irq/29-eth0_g0_22:39:441
121500ksoftirqd/1121550irq/30-eth0_g0_00:21:551
121490ksoftirqd/1121550irq/30-eth0_g0_22:16:091
121480ksoftirqd/1121550irq/30-eth0_g0_23:59:221
121450470irq/29-eth0_g0_13-21kworker/0:123:17:320
121470ksoftirqd/1121550irq/30-eth0_g0_21:10:181
121460ksoftirqd/1121450irq/29-eth0_g0_21:38:531
121450450irq/29-eth0_g0_796399cyclictest23:46:220
121450ksoftirqd/1121550irq/30-eth0_g0_20:22:330
121450ksoftirqd/1121550irq/30-eth0_g0_00:11:531
121450ksoftirqd/1121450irq/29-eth0_g0_23:39:241
121450ksoftirqd/1121450irq/29-eth0_g0_00:13:590
121450440irq/29-eth0_g0_31ksoftirqd/023:37:330
121440ksoftirqd/1121550irq/30-eth0_g0_22:22:261
121440ksoftirqd/1121550irq/30-eth0_g0_00:05:191
121440ksoftirqd/1121450irq/29-eth0_g0_23:32:201
121440ksoftirqd/1121450irq/29-eth0_g0_21:27:140
121550420irq/30-eth0_g0_28542-21df22:47:220
121550420irq/30-eth0_g0_2241-21taskset23:12:231
121450420irq/29-eth0_g0_13-21kworker/0:123:27:270
121420ksoftirqd/1121550irq/30-eth0_g0_22:36:060
796499411cyclictest17194-21netstat19:47:261
121550410irq/30-eth0_g0_1221-21kworker/1:221:20:011
121550410irq/30-eth0_g0_121ksoftirqd/121:31:091
121450410irq/29-eth0_g0_6848-21ntp_states21:17:270
121450410irq/29-eth0_g0_31ksoftirqd/022:32:330
121450410irq/29-eth0_g0_1941-21runrttasks23:31:480
121450410irq/29-eth0_g0_0-21swapper/023:07:320
73622400sleep1121550irq/30-eth0_g0_19:07:271
121550400irq/30-eth0_g0_1675-21taskset23:07:341
121550400irq/30-eth0_g0_1221-21kworker/1:223:15:011
121550400irq/30-eth0_g0_121ksoftirqd/119:52:331
121450400irq/29-eth0_g0_1941-21runrttasks19:07:470
121450400irq/29-eth0_g0_13-21kworker/0:123:41:220
121400ksoftirqd/1121450irq/29-eth0_g0_22:32:331
121400ksoftirqd/1121450irq/29-eth0_g0_00:04:251
121400ksoftirqd/1121450irq/29-eth0_g0_00:04:251
796499391cyclictest9666-21df_abs23:42:261
121450390irq/29-eth0_g0_1941-21runrttasks21:30:360
121450390irq/29-eth0_g0_13-21kworker/0:100:37:260
121450390irq/29-eth0_g0_121ksoftirqd/122:10:360
121450390irq/29-eth0_g0_0-21swapper/021:47:260
121390ksoftirqd/1121550irq/30-eth0_g0_22:49:510
121390ksoftirqd/1121550irq/30-eth0_g0_22:06:540
121390ksoftirqd/1121550irq/30-eth0_g0_21:50:590
121390ksoftirqd/1121550irq/30-eth0_g0_21:43:550
121390ksoftirqd/1121550irq/30-eth0_g0_21:20:040
121390ksoftirqd/1121550irq/30-eth0_g0_21:08:240
121390ksoftirqd/1121550irq/30-eth0_g0_19:58:440
121390ksoftirqd/1121450irq/29-eth0_g0_21:10:470
121390ksoftirqd/1121450irq/29-eth0_g0_20:47:241
121390ksoftirqd/1121450irq/29-eth0_g0_20:09:461
796499387cyclictest0-21swapper/121:25:381
796499382cyclictest28542-21df22:47:221
796499382cyclictest1941-21runrttasks19:37:521
796499381cyclictest18689-21/usr/sbin/munin22:07:301
121550380irq/30-eth0_g0_1221-21kworker/1:222:26:541
121550380irq/30-eth0_g0_1221-21kworker/1:221:59:091
121550380irq/30-eth0_g0_1221-21kworker/1:200:32:461
121450380irq/29-eth0_g0_29222-21df_inode20:37:230
121450380irq/29-eth0_g0_1941-21runrttasks20:49:570
121450380irq/29-eth0_g0_1941-21runrttasks00:32:180
121450380irq/29-eth0_g0_0-21swapper/022:18:150
121380ksoftirqd/1121550irq/30-eth0_g0_23:54:260
121380ksoftirqd/1121550irq/30-eth0_g0_22:03:420
121380ksoftirqd/1121550irq/30-eth0_g0_19:12:470
121380ksoftirqd/1121450irq/29-eth0_g0_21:07:341
796499372cyclictest6969-21awk21:17:291
796499371cyclictest24693-21grep20:17:301
796499371cyclictest2071-21snmpd21:47:271
796499371cyclictest15855-21sort19:42:261
121550370irq/30-eth0_g0_1941-21runrttasks19:16:540
121550370irq/30-eth0_g0_1221-21kworker/1:223:04:041
121550370irq/30-eth0_g0_0-21swapper/120:52:271
121450370irq/29-eth0_g0_13-21kworker/0:123:22:450
121450370irq/29-eth0_g0_13-21kworker/0:122:57:030
121450370irq/29-eth0_g0_0-21swapper/019:27:240
121450370irq/29-eth0_g0_0-21swapper/000:01:040
121450370irq/29-eth0_g0_0-21swapper/000:01:040
121370ksoftirqd/1121450irq/29-eth0_g0_20:22:341
796499361cyclictest2912-21df_abs21:02:221
796499361cyclictest207962sleep120:02:271
796499361cyclictest12094-21df_abs23:52:251
121550360irq/30-eth0_g0_31180-21latency22:57:281
121550360irq/30-eth0_g0_1221-21kworker/1:223:46:411
121450360irq/29-eth0_g0_31523-21/usr/sbin/munin20:47:230
121450360irq/29-eth0_g0_1941-21runrttasks00:08:230
121450360irq/29-eth0_g0_13-21kworker/0:121:55:350
121450360irq/29-eth0_g0_0-21swapper/022:27:100
121360ksoftirqd/1121550irq/30-eth0_g0_20:59:380
121360ksoftirqd/1121550irq/30-eth0_g0_20:09:210
796499351cyclictest20560-21unixbench_multi22:12:361
796499351cyclictest0-21swapper/120:33:181
796499351cyclictest0-21swapper/119:23:351
121550350irq/30-eth0_g0_796399cyclictest19:37:270
121450350irq/29-eth0_g0_796399cyclictest23:12:240
121450350irq/29-eth0_g0_20510-21cpu20:02:230
121450350irq/29-eth0_g0_19493-21if_err_eth000:22:250
121450350irq/29-eth0_g0_1941-21runrttasks22:40:490
121450350irq/29-eth0_g0_1941-21runrttasks20:19:000
121450350irq/29-eth0_g0_13495-21memory23:57:250
121450350irq/29-eth0_g0_11011-21cat19:22:270
121350ksoftirqd/1121550irq/30-eth0_g0_19:42:120
121350ksoftirqd/1121450irq/29-eth0_g0_22:43:271
796499342cyclictest8788-21seq19:12:331
796499341cyclictest23679-21awk20:12:351
796499341cyclictest13755-21/usr/sbin/munin19:32:331
796499341cyclictest0-21swapper/120:56:011
796499341cyclictest0-21swapper/120:27:511
796499341cyclictest0-21swapper/119:25:221
121450340irq/29-eth0_g0_30260-21runrttasks20:41:571
121450340irq/29-eth0_g0_26840-21interrupts20:27:260
121450340irq/29-eth0_g0_1941-21runrttasks22:21:480
121450340irq/29-eth0_g0_13561-21/usr/sbin/munin19:32:300
121450340irq/29-eth0_g0_0-21swapper/019:47:450
121340ksoftirqd/19561-21df_abs19:17:251
121550330irq/30-eth0_g0_0-21swapper/119:57:271
121450330irq/29-eth0_g0_23606-21tail20:12:340
121450330irq/29-eth0_g0_1941-21runrttasks20:44:170
121450330irq/29-eth0_g0_1941-21runrttasks20:32:200
121450330irq/29-eth0_g0_1941-21runrttasks19:53:120
796499301cyclictest0-21swapper/120:35:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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