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2026-05-26 - 00:16

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 Mon May 25, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121990ksoftirqd/1121750irq/30-eth0_g0_09:39:381
121930ksoftirqd/1121750irq/30-eth0_g0_07:05:140
121930ksoftirqd/1121750irq/30-eth0_g0_07:05:140
121910ksoftirqd/1121750irq/30-eth0_g0_09:15:160
121710ksoftirqd/1121750irq/30-eth0_g0_10:58:321
121630ksoftirqd/1121750irq/30-eth0_g0_07:25:150
99152560sleep0121650irq/29-eth0_g0_12:06:390
128022550sleep0121750irq/30-eth0_g0_10:05:160
121520ksoftirqd/1121750irq/30-eth0_g0_10:36:581
121510ksoftirqd/1121750irq/30-eth0_g0_12:09:391
121500ksoftirqd/1121750irq/30-eth0_g0_11:27:011
249272490sleep0121650irq/29-eth0_g0_08:44:550
121650490irq/29-eth0_g0_7251-21cpu09:45:060
121490ksoftirqd/1121650irq/29-eth0_g0_11:40:390
121470ksoftirqd/1121750irq/30-eth0_g0_11:12:401
121460ksoftirqd/1121750irq/30-eth0_g0_09:20:441
121750450irq/30-eth0_g0_1219-21kworker/1:211:59:001
121750450irq/30-eth0_g0_1219-21kworker/1:211:59:001
121450ksoftirqd/1121750irq/30-eth0_g0_11:45:011
121450ksoftirqd/1121750irq/30-eth0_g0_10:29:331
121450ksoftirqd/1121750irq/30-eth0_g0_10:04:301
121450ksoftirqd/1121750irq/30-eth0_g0_07:15:541
121450ksoftirqd/1121650irq/29-eth0_g0_09:19:241
121450ksoftirqd/1121650irq/29-eth0_g0_08:21:501
121650440irq/29-eth0_g0_31ksoftirqd/009:10:110
121440ksoftirqd/1121750irq/30-eth0_g0_10:40:361
121440ksoftirqd/1121750irq/30-eth0_g0_10:38:530
121440ksoftirqd/1121750irq/30-eth0_g0_09:36:560
32782430chrt121650irq/29-eth0_g0_09:27:320
121750430irq/30-eth0_g0_1219-21kworker/1:212:22:271
121650430irq/29-eth0_g0_31ksoftirqd/012:04:360
121650430irq/29-eth0_g0_26330-21runrttasks11:00:210
121750420irq/30-eth0_g0_1219-21kworker/1:209:26:371
121650420irq/29-eth0_g0_31ksoftirqd/011:05:110
121650420irq/29-eth0_g0_31ksoftirqd/011:05:110
121650420irq/29-eth0_g0_1964-21runrttasks11:30:270
121420ksoftirqd/1121650irq/29-eth0_g0_10:19:161
121420ksoftirqd/1121650irq/29-eth0_g0_10:15:150
171499417cyclictest15785-21fgrep08:05:151
171499417cyclictest15785-21fgrep08:05:151
121750410irq/30-eth0_g0_1219-21kworker/1:209:45:031
121750410irq/30-eth0_g0_121ksoftirqd/109:30:071
121410ksoftirqd/1121650irq/29-eth0_g0_08:50:171
171499401cyclictest6579-21grep11:54:551
171499401cyclictest154032sleep112:30:081
171499401cyclictest154032sleep112:30:081
121750400irq/30-eth0_g0_1263-21grep07:05:151
121750400irq/30-eth0_g0_1263-21grep07:05:151
121750400irq/30-eth0_g0_1219-21kworker/1:210:52:201
121750400irq/30-eth0_g0_1219-21kworker/1:209:51:591
121750400irq/30-eth0_g0_121ksoftirqd/112:25:571
121650400irq/29-eth0_g0_13-21kworker/0:112:35:570
121650400irq/29-eth0_g0_13-21kworker/0:112:33:360
121650400irq/29-eth0_g0_13-21kworker/0:112:33:360
121650400irq/29-eth0_g0_13-21kworker/0:112:20:480
121650400irq/29-eth0_g0_13-21kworker/0:110:34:470
121650400irq/29-eth0_g0_121ksoftirqd/111:48:330
121400ksoftirqd/1121750irq/30-eth0_g0_11:36:520
276472390sleep0121650irq/29-eth0_g0_08:55:070
171499391cyclictest27200-21awk11:05:121
171499391cyclictest27200-21awk11:05:121
121750390irq/30-eth0_g0_1219-21kworker/1:211:40:141
121750390irq/30-eth0_g0_1219-21kworker/1:210:20:311
121750390irq/30-eth0_g0_1219-21kworker/1:210:09:571
121750390irq/30-eth0_g0_1219-21kworker/1:210:09:571
121750390irq/30-eth0_g0_121ksoftirqd/112:18:281
121750390irq/30-eth0_g0_0-21swapper/111:33:511
121650390irq/29-eth0_g0_1964-21runrttasks07:45:330
121650390irq/29-eth0_g0_13-21kworker/0:111:51:390
121650390irq/29-eth0_g0_13-21kworker/0:111:24:410
121650390irq/29-eth0_g0_13-21kworker/0:110:00:510
121650390irq/29-eth0_g0_121ksoftirqd/111:57:070
121650390irq/29-eth0_g0_121ksoftirqd/111:57:070
121390ksoftirqd/1121650irq/29-eth0_g0_09:57:251
178312380sleep0121750irq/30-eth0_g0_10:25:570
171499381cyclictest30477-21cat09:05:151
121750380irq/30-eth0_g0_1219-21kworker/1:212:13:181
121750380irq/30-eth0_g0_1219-21kworker/1:212:00:581
121750380irq/30-eth0_g0_1219-21kworker/1:210:05:221
121750380irq/30-eth0_g0_121ksoftirqd/109:40:101
121750380irq/30-eth0_g0_121ksoftirqd/109:40:101
121750380irq/30-eth0_g0_0-21swapper/110:34:201
121750380irq/30-eth0_g0_0-21swapper/109:14:361
121650380irq/29-eth0_g0_2555-21taskset07:10:160
121650380irq/29-eth0_g0_227002sleep110:45:471
121650380irq/29-eth0_g0_1964-21runrttasks08:36:330
121650380irq/29-eth0_g0_1964-21runrttasks08:01:590
121650380irq/29-eth0_g0_121ksoftirqd/110:53:080
121650380irq/29-eth0_g0_121ksoftirqd/110:22:430
121380ksoftirqd/1121750irq/30-eth0_g0_09:03:440
121380ksoftirqd/1121750irq/30-eth0_g0_08:19:010
121380ksoftirqd/1121650irq/29-eth0_g0_08:58:561
69322370sleep0121650irq/29-eth0_g0_09:42:220
69322370sleep0121650irq/29-eth0_g0_09:42:220
171499371cyclictest14424-21taskset08:00:131
171499371cyclictest11981-21chrt07:50:121
121750370irq/30-eth0_g0_1219-21kworker/1:212:36:501
121750370irq/30-eth0_g0_0-21swapper/111:39:051
121750370irq/30-eth0_g0_0-21swapper/111:24:541
121650370irq/29-eth0_g0_1964-21runrttasks12:15:290
121650370irq/29-eth0_g0_1964-21runrttasks11:16:370
121650370irq/29-eth0_g0_1964-21runrttasks08:53:140
121650370irq/29-eth0_g0_1964-21runrttasks07:40:260
121650370irq/29-eth0_g0_13-21kworker/0:111:29:010
121650370irq/29-eth0_g0_13-21kworker/0:109:51:250
121650370irq/29-eth0_g0_13-21kworker/0:109:20:350
121370ksoftirqd/1121650irq/29-eth0_g0_08:42:111
171499361cyclictest29339-21head09:00:161
171499361cyclictest215852sleep108:30:081
171499361cyclictest20759-21grep08:25:171
171499361cyclictest17133-21taskset08:10:161
171499361cyclictest17133-21taskset08:10:161
171499361cyclictest115752sleep107:49:551
121650360irq/29-eth0_g0_7305-21timerandwakeup07:30:150
121650360irq/29-eth0_g0_31ksoftirqd/012:25:230
121650360irq/29-eth0_g0_1964-21runrttasks08:27:460
121650360irq/29-eth0_g0_13-21kworker/0:112:13:540
121650360irq/29-eth0_g0_13-21kworker/0:110:14:260
121650360irq/29-eth0_g0_13-21kworker/0:110:14:260
121650360irq/29-eth0_g0_12037-21/usr/sbin/munin07:50:150
171499351cyclictest7840-21munin-run07:34:551
171499351cyclictest5861-21seq07:25:111
171499351cyclictest4893-21grep07:20:161
171499351cyclictest31007-21diskmemload11:18:311
171499351cyclictest17745-21taskset08:15:061
171499351cyclictest13868-21sshd07:59:101
121750350irq/30-eth0_g0_1219-21kworker/1:211:02:291
121650350irq/29-eth0_g0_20704-21/usr/sbin/munin10:40:060
121650350irq/29-eth0_g0_1964-21runrttasks08:48:190
121650350irq/29-eth0_g0_1964-21runrttasks08:31:280
121650350irq/29-eth0_g0_1964-21runrttasks08:23:300
121650350irq/29-eth0_g0_1964-21runrttasks07:57:420
121650350irq/29-eth0_g0_1964-21runrttasks07:35:450
121650350irq/29-eth0_g0_13-21kworker/0:111:10:210
121650350irq/29-eth0_g0_13-21kworker/0:110:55:420
121650350irq/29-eth0_g0_13-21kworker/0:109:32:570
171499341cyclictest8091-21entropy07:35:061
171499341cyclictest25069-21sed08:45:061
121650340irq/29-eth0_g0_5400-21latency_hist07:24:550
121650340irq/29-eth0_g0_30496-21/usr/sbin/munin09:05:160
121650340irq/29-eth0_g0_1964-21runrttasks08:04:580
121650340irq/29-eth0_g0_1964-21runrttasks08:04:580
121650340irq/29-eth0_g0_1964-21runrttasks07:15:540
121650340irq/29-eth0_g0_0-21swapper/009:57:370
171499331cyclictest9529-21ntp_kernel_pll_07:40:111
171499331cyclictest21372sleep107:10:101
121650330irq/29-eth0_g0_22056-21df_abs10:45:060
121330ksoftirqd/122969-21ntpq08:35:121
121650310irq/29-eth0_g0_17123-21unixbench_multi08:10:160
121650310irq/29-eth0_g0_17123-21unixbench_multi08:10:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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