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2026-04-03 - 03:13

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 Fri Apr 03, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211030ksoftirqd/1121750irq/30-eth0_g0_23:17:271
1211020ksoftirqd/1121750irq/30-eth0_g0_23:44:510
307372970sleep1121650irq/29-eth0_g0_21:42:471
121770ksoftirqd/1121750irq/30-eth0_g0_00:19:211
121770ksoftirqd/1121750irq/30-eth0_g0_00:19:211
235352760sleep1121750irq/30-eth0_g0_23:24:581
293522600sleep1121650irq/29-eth0_g0_21:35:551
80092560sleep0121650irq/29-eth0_g0_00:34:520
121520ksoftirqd/1121750irq/30-eth0_g0_21:12:511
121520ksoftirqd/1121750irq/30-eth0_g0_00:00:571
152872510sleep0121750irq/30-eth0_g0_22:50:370
121510ksoftirqd/1121750irq/30-eth0_g0_21:20:361
121510ksoftirqd/1121750irq/30-eth0_g0_00:32:111
121490ksoftirqd/1121750irq/30-eth0_g0_21:55:551
121480ksoftirqd/1121750irq/30-eth0_g0_23:46:151
121650470irq/29-eth0_g0_26286-21sshd23:35:200
121470ksoftirqd/1121750irq/30-eth0_g0_00:27:051
121460ksoftirqd/1121750irq/30-eth0_g0_23:00:421
121460ksoftirqd/1121750irq/30-eth0_g0_22:43:221
121460ksoftirqd/1121750irq/30-eth0_g0_22:19:581
58882450sleep1121750irq/30-eth0_g0_19:59:591
121750450irq/30-eth0_g0_118292sleep122:38:111
121450ksoftirqd/1121750irq/30-eth0_g0_23:58:381
121450ksoftirqd/1121750irq/30-eth0_g0_22:26:561
121450ksoftirqd/1121650irq/29-eth0_g0_22:11:061
165722440sleep0121650irq/29-eth0_g0_22:56:190
121650440irq/29-eth0_g0_13-21kworker/0:123:50:180
121650440irq/29-eth0_g0_13-21kworker/0:123:50:180
121750430irq/30-eth0_g0_1219-21kworker/1:223:41:421
121750430irq/30-eth0_g0_1219-21kworker/1:223:08:531
121750430irq/30-eth0_g0_1219-21kworker/1:222:29:551
121650430irq/29-eth0_g0_31ksoftirqd/022:34:580
121750420irq/30-eth0_g0_24755-21mailstats19:04:571
121750420irq/30-eth0_g0_1219-21kworker/1:223:33:101
121750420irq/30-eth0_g0_1219-21kworker/1:223:33:101
121750420irq/30-eth0_g0_1219-21kworker/1:223:11:031
121650420irq/29-eth0_g0_1875-21runrttasks19:07:390
121420ksoftirqd/130912sleep022:01:190
121420ksoftirqd/1121650irq/29-eth0_g0_21:17:341
121420ksoftirqd/1121650irq/29-eth0_g0_21:17:341
121420ksoftirqd/1121650irq/29-eth0_g0_00:37:091
121750410irq/30-eth0_g0_6153-21/usr/sbin/munin22:14:531
121750410irq/30-eth0_g0_13-21kworker/0:100:09:520
121750410irq/30-eth0_g0_0-21swapper/122:54:591
121650410irq/29-eth0_g0_31ksoftirqd/021:17:100
121650410irq/29-eth0_g0_31ksoftirqd/021:17:100
2534999401cyclictest22320-21diskmemload23:34:591
121750400irq/30-eth0_g0_1219-21kworker/1:223:24:061
121650400irq/29-eth0_g0_388-21grep21:50:021
121650400irq/29-eth0_g0_388-21grep21:50:021
121650400irq/29-eth0_g0_18576-21ntp_states23:04:570
121650400irq/29-eth0_g0_13-21kworker/0:123:23:070
121650400irq/29-eth0_g0_13-21kworker/0:121:50:050
121650400irq/29-eth0_g0_13-21kworker/0:121:50:050
121650400irq/29-eth0_g0_13-21kworker/0:121:12:280
121650400irq/29-eth0_g0_13-21kworker/0:100:00:230
121650400irq/29-eth0_g0_12532-21latency_hist20:29:390
121650400irq/29-eth0_g0_12532-21latency_hist20:29:390
121400ksoftirqd/1121750irq/30-eth0_g0_22:24:310
121400ksoftirqd/1121750irq/30-eth0_g0_22:03:111
121400ksoftirqd/1121750irq/30-eth0_g0_00:28:480
121400ksoftirqd/1121650irq/29-eth0_g0_23:54:590
266662390sleep11219-21kworker/1:219:14:501
121650390irq/29-eth0_g0_31ksoftirqd/021:47:380
121650390irq/29-eth0_g0_27309-21unixbench_multi19:15:000
121650390irq/29-eth0_g0_1875-21runrttasks22:12:390
121650390irq/29-eth0_g0_17337-21/usr/sbin/munin22:59:550
121650390irq/29-eth0_g0_13-21kworker/0:122:45:550
121650390irq/29-eth0_g0_13-21kworker/0:121:35:390
121650390irq/29-eth0_g0_12686-21df_abs20:29:500
121650390irq/29-eth0_g0_12686-21df_abs20:29:500
121390ksoftirqd/1121750irq/30-eth0_g0_21:20:470
121390ksoftirqd/1121750irq/30-eth0_g0_21:06:520
121390ksoftirqd/1121750irq/30-eth0_g0_19:43:370
121390ksoftirqd/1121750irq/30-eth0_g0_00:21:060
121390ksoftirqd/1121750irq/30-eth0_g0_00:18:500
121390ksoftirqd/1121750irq/30-eth0_g0_00:18:500
315482380sleep1121750irq/30-eth0_g0_21:44:591
2534999386cyclictest31762-21if_eth019:34:511
2534999382cyclictest30335-21/usr/sbin/munin19:29:561
2534999382cyclictest30335-21/usr/sbin/munin19:29:561
121750380irq/30-eth0_g0_31ksoftirqd/019:23:180
121750380irq/30-eth0_g0_1219-21kworker/1:223:52:561
121750380irq/30-eth0_g0_1219-21kworker/1:223:52:561
121750380irq/30-eth0_g0_0-21swapper/100:10:051
121650380irq/29-eth0_g0_31ksoftirqd/021:41:430
121650380irq/29-eth0_g0_2534899cyclictest23:30:050
121650380irq/29-eth0_g0_2534899cyclictest23:30:050
121650380irq/29-eth0_g0_13-21kworker/0:123:27:490
121650380irq/29-eth0_g0_13-21kworker/0:122:40:410
121650380irq/29-eth0_g0_13-21kworker/0:122:25:170
121650380irq/29-eth0_g0_13-21kworker/0:121:31:320
121650380irq/29-eth0_g0_13-21kworker/0:100:31:110
121650380irq/29-eth0_g0_10269-21unixbench_singl22:30:020
121380ksoftirqd/1121750irq/30-eth0_g0_23:09:580
121380ksoftirqd/1121750irq/30-eth0_g0_19:33:140
121380ksoftirqd/1121750irq/30-eth0_g0_19:33:140
2534999372cyclictest651-21cat19:39:541
2534999372cyclictest27281-21wc21:29:401
2534999371cyclictest8375-21grep20:10:011
2534999371cyclictest4575-21fgrep19:54:581
2534999371cyclictest4575-21fgrep19:54:581
2534999371cyclictest39952sleep122:04:581
2534999371cyclictest21733-21awk21:05:011
2534999371cyclictest1986-21grep19:44:551
121750370irq/30-eth0_g0_1219-21kworker/1:222:51:101
121650370irq/29-eth0_g0_31ksoftirqd/023:42:300
121650370irq/29-eth0_g0_31ksoftirqd/000:09:000
121650370irq/29-eth0_g0_25825-21ntpdc19:09:550
121650370irq/29-eth0_g0_21302-21unixbench_singl23:15:010
121650370irq/29-eth0_g0_1875-21runrttasks20:52:510
121650370irq/29-eth0_g0_15599-21sendmail_mailqu20:39:580
121650370irq/29-eth0_g0_14463-21tail20:35:000
121650370irq/29-eth0_g0_13-21kworker/0:122:15:200
121650370irq/29-eth0_g0_13-21kworker/0:121:28:250
121650370irq/29-eth0_g0_121ksoftirqd/100:05:241
25349993630cyclictest1875-21runrttasks19:51:491
2534999362cyclictest14073-21irqstats20:34:521
2534999361cyclictest1875-21runrttasks00:21:131
2534999361cyclictest18153-21unixbench_multi20:49:591
2534999361cyclictest11373-21sed20:24:401
121750360irq/30-eth0_g0_5891-21unixbench_multi19:59:590
121750360irq/30-eth0_g0_1219-21kworker/1:222:46:141
121650360irq/29-eth0_g0_6817-21ls20:04:550
121650360irq/29-eth0_g0_4303-21/usr/sbin/munin19:54:530
121650360irq/29-eth0_g0_4303-21/usr/sbin/munin19:54:530
121650360irq/29-eth0_g0_32230-21grep19:35:000
121650360irq/29-eth0_g0_20612-21unixbench_multi20:59:590
121650360irq/29-eth0_g0_121ksoftirqd/121:29:541
121650360irq/29-eth0_g0_0-21swapper/021:58:290
2534999352cyclictest19188-21proc_pri20:54:561
2534999351cyclictest9057-21df_abs20:14:501
2534999351cyclictest25691-21sort19:09:531
2534999351cyclictest2175-21lldpd19:25:381
2534999351cyclictest11518-21df_abs20:24:521
2534999351cyclictest11518-21df_abs20:24:521
121650350irq/29-eth0_g0_3854-21ntpdc22:04:560
121650350irq/29-eth0_g0_3216-21ntp_states19:49:570
121650350irq/29-eth0_g0_1875-21runrttasks20:57:530
121650350irq/29-eth0_g0_1875-21runrttasks19:25:230
121650350irq/29-eth0_g0_16974-21grep20:45:000
121650350irq/29-eth0_g0_10541-21ntp_kernel_err20:19:540
2534999342cyclictest1875-21runrttasks20:04:431
2534999341cyclictest15521-21grep20:39:571
121650340irq/29-eth0_g0_9401-21proc_pri20:14:570
121650340irq/29-eth0_g0_1768-21chrt19:44:510
2534999331cyclictest0-21swapper/120:44:571
121650330irq/29-eth0_g0_7990-21latency20:09:540
121330ksoftirqd/120093-21sed20:59:491
2534999321cyclictest13151-21fgrep20:29:581
2534999321cyclictest13151-21fgrep20:29:581
2534999321cyclictest0-21swapper/119:19:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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