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2026-07-07 - 14:53

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 Tue Jul 07, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60102750sleep0121650irq/29-eth0_g0_11:54:430
121710ksoftirqd/1121750irq/30-eth0_g0_10:28:290
175872670sleep1121650irq/29-eth0_g0_10:30:041
286072660sleep1121750irq/30-eth0_g0_11:14:451
121660ksoftirqd/1121750irq/30-eth0_g0_11:28:291
6212630chrt121750irq/30-eth0_g0_11:33:270
121600ksoftirqd/1121750irq/30-eth0_g0_12:29:181
200742580sleep1121750irq/30-eth0_g0_08:28:311
188312550sleep1121750irq/30-eth0_g0_10:35:161
9732520sleep1121750irq/30-eth0_g0_11:33:381
299422500sleep1121750irq/30-eth0_g0_09:08:301
137872440sleep1121650irq/29-eth0_g0_10:13:391
121750440irq/30-eth0_g0_202142sleep110:42:051
32359994330cyclictest4101-21df_inode11:48:241
32359994330cyclictest2643-21df_inode07:18:231
32359994330cyclictest25820-21egrep08:53:221
32359994330cyclictest25820-21egrep08:53:221
121750430irq/30-eth0_g0_1219-21kworker/1:210:10:481
121750430irq/30-eth0_g0_1219-21kworker/1:209:54:591
121750430irq/30-eth0_g0_1219-21kworker/1:209:54:591
121750430irq/30-eth0_g0_1219-21kworker/1:209:21:581
121650430irq/29-eth0_g0_31346-21df07:03:240
121430ksoftirqd/1121750irq/30-eth0_g0_11:29:050
121430ksoftirqd/1121750irq/30-eth0_g0_09:28:280
121430ksoftirqd/1121750irq/30-eth0_g0_07:48:300
121430ksoftirqd/1121750irq/30-eth0_g0_07:48:300
121430ksoftirqd/1121650irq/29-eth0_g0_12:23:121
327112420sleep0121650irq/29-eth0_g0_09:18:430
32359994232cyclictest297922sleep111:19:141
32359994229cyclictest24627-21/usr/sbin/munin10:58:311
32359994228cyclictest7934-21/usr/sbin/munin07:38:311
32359994228cyclictest23490-21df08:43:241
151352420sleep1121650irq/29-eth0_g0_10:20:051
121750420irq/30-eth0_g0_1219-21kworker/1:212:06:141
121750420irq/30-eth0_g0_1219-21kworker/1:211:56:431
121750420irq/30-eth0_g0_1219-21kworker/1:210:02:451
121650420irq/29-eth0_g0_15366-21timerandwakeup08:08:320
32359994129cyclictest15635-21grep12:33:321
32359994129cyclictest15635-21grep12:33:321
32359994128cyclictest6691-21processes07:33:311
32359994128cyclictest29004-21vmstat09:03:341
32359994127cyclictest10100-21cat07:48:241
32359994127cyclictest10100-21cat07:48:241
121750410irq/30-eth0_g0_1219-21kworker/1:210:27:221
121650410irq/29-eth0_g0_7315-21open_files09:48:310
121650410irq/29-eth0_g0_121ksoftirqd/112:13:121
32359994026cyclictest11733-21latency_hist10:08:111
121750400irq/30-eth0_g0_121ksoftirqd/112:23:271
121650400irq/29-eth0_g0_13-21kworker/0:111:24:590
121400ksoftirqd/1121650irq/29-eth0_g0_10:09:200
32359993927cyclictest5866-21if_err_eth009:43:241
32359993927cyclictest30781-21/usr/sbin/munin11:23:321
32359993927cyclictest29410-21diskmemload11:58:301
32359993926cyclictest9302-21unixbench_singl07:43:341
32359993926cyclictest29410-21diskmemload09:23:271
121750390irq/30-eth0_g0_1219-21kworker/1:209:29:551
121750390irq/30-eth0_g0_1219-21kworker/1:209:15:171
121750390irq/30-eth0_g0_121ksoftirqd/111:09:151
121650390irq/29-eth0_g0_1964-21runrttasks08:44:100
121650390irq/29-eth0_g0_13-21kworker/0:112:32:530
121650390irq/29-eth0_g0_13-21kworker/0:111:46:510
121650390irq/29-eth0_g0_13-21kworker/0:111:38:130
121650390irq/29-eth0_g0_13-21kworker/0:111:13:550
121650390irq/29-eth0_g0_13-21kworker/0:110:58:260
121650390irq/29-eth0_g0_13-21kworker/0:110:37:550
121650390irq/29-eth0_g0_13-21kworker/0:109:40:400
121650390irq/29-eth0_g0_13-21kworker/0:109:37:390
121650390irq/29-eth0_g0_13-21kworker/0:109:10:400
121650390irq/29-eth0_g0_121ksoftirqd/108:13:211
104322390sleep0121650irq/29-eth0_g0_10:02:280
32359993829cyclictest5011-21df07:28:261
32359993828cyclictest31012sleep111:43:281
32359993826cyclictest21592-21unixbench_singl08:33:331
17542380sleep0121650irq/29-eth0_g0_09:26:370
121750380irq/30-eth0_g0_32355-21munin-run07:08:111
121750380irq/30-eth0_g0_1219-21kworker/1:212:14:511
121750380irq/30-eth0_g0_1219-21kworker/1:211:39:351
121750380irq/30-eth0_g0_1219-21kworker/1:211:04:011
121750380irq/30-eth0_g0_1219-21kworker/1:209:33:231
121750380irq/30-eth0_g0_121ksoftirqd/110:53:591
121750380irq/30-eth0_g0_121ksoftirqd/108:58:271
121750380irq/30-eth0_g0_121ksoftirqd/108:58:271
121650380irq/29-eth0_g0_25277-21unixbench_singl08:48:330
121650380irq/29-eth0_g0_1964-21runrttasks10:47:470
121650380irq/29-eth0_g0_1964-21runrttasks07:43:550
121650380irq/29-eth0_g0_13189-21taskset12:23:320
121650380irq/29-eth0_g0_13-21kworker/0:112:12:210
121650380irq/29-eth0_g0_13-21kworker/0:111:51:460
121650380irq/29-eth0_g0_13-21kworker/0:110:54:340
121650380irq/29-eth0_g0_13-21kworker/0:110:25:560
121650380irq/29-eth0_g0_13-21kworker/0:110:20:540
121650380irq/29-eth0_g0_13-21kworker/0:110:14:030
32359993725cyclictest20637-21iostat10:43:251
3235999372cyclictest11723-21grep07:53:321
3235999371cyclictest7387-21processes09:48:321
3235999371cyclictest1644-21taskset07:13:301
121750370irq/30-eth0_g0_8596-21proc_pri09:53:300
121750370irq/30-eth0_g0_8596-21proc_pri09:53:300
121750370irq/30-eth0_g0_1219-21kworker/1:210:50:501
121750370irq/30-eth0_g0_1219-21kworker/1:209:41:291
121650370irq/29-eth0_g0_7934-21sendmail_mailqu07:38:310
121650370irq/29-eth0_g0_26675-21df_abs11:08:230
121650370irq/29-eth0_g0_222692df_abs08:38:240
121650370irq/29-eth0_g0_19818-21unixbench_multi10:38:320
121650370irq/29-eth0_g0_1964-21runrttasks10:49:280
121650370irq/29-eth0_g0_13-21kworker/0:112:14:260
121650370irq/29-eth0_g0_13-21kworker/0:112:00:290
121650370irq/29-eth0_g0_13-21kworker/0:111:04:200
121650370irq/29-eth0_g0_13-21kworker/0:110:03:180
32359993623cyclictest23266-21munin-run08:43:121
121650360irq/29-eth0_g0_7339-21latency_hist07:38:120
121650360irq/29-eth0_g0_3199-21unixbench_singl07:18:330
121650360irq/29-eth0_g0_27723-21unixbench_singl08:58:320
121650360irq/29-eth0_g0_27723-21unixbench_singl08:58:320
121650360irq/29-eth0_g0_1964-21runrttasks08:54:020
121650360irq/29-eth0_g0_1964-21runrttasks08:54:020
121650360irq/29-eth0_g0_1964-21runrttasks07:59:230
121650360irq/29-eth0_g0_1964-21runrttasks07:09:120
121650360irq/29-eth0_g0_1912-21unixbench_multi07:13:330
121650360irq/29-eth0_g0_14991-21/usr/sbin/munin12:33:240
121650360irq/29-eth0_g0_14991-21/usr/sbin/munin12:33:240
121650360irq/29-eth0_g0_14428-21runrttasks08:05:220
121650360irq/29-eth0_g0_13-21kworker/0:112:20:400
121650360irq/29-eth0_g0_13-21kworker/0:112:05:460
121650360irq/29-eth0_g0_13-21kworker/0:111:21:350
121650360irq/29-eth0_g0_13-21kworker/0:109:44:020
121650360irq/29-eth0_g0_13-21kworker/0:109:13:150
32359993526cyclictest1964-21runrttasks08:23:331
32359993523cyclictest14973-21ethtool08:08:241
121650350irq/29-eth0_g0_4357-21sed07:23:320
121650350irq/29-eth0_g0_20372-21unixbench_singl08:28:350
121650350irq/29-eth0_g0_1964-21runrttasks07:53:580
121650350irq/29-eth0_g0_1964-21runrttasks07:31:390
121650350irq/29-eth0_g0_16643-21grep08:13:310
121350ksoftirqd/125781-21wc08:53:121
139222340sleep113925-21ntp_kernel_pll_08:03:291
121650340irq/29-eth0_g0_1964-21runrttasks08:22:111
121650340irq/29-eth0_g0_17289-21df_abs08:18:250
121650340irq/29-eth0_g0_0-21swapper/009:03:230
32359993323cyclictest37182sleep107:23:211
121650330irq/29-eth0_g0_18518-21df_abs08:23:240
121650330irq/29-eth0_g0_132922sshd08:01:251
121650330irq/29-eth0_g0_0-21swapper/008:33:220
121750320irq/30-eth0_g0_0-21swapper/107:08:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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