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2026-07-16 - 01:26

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 Wed Jul 15, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1039621660sleep0121650irq/29-eth0_g0_11:25:350
2121421340sleep0121750irq/30-eth0_g0_12:08:260
1211070ksoftirqd/1121750irq/30-eth0_g0_08:21:051
1211020ksoftirqd/1121750irq/30-eth0_g0_10:14:311
287721010sleep0121750irq/30-eth0_g0_10:53:300
121890ksoftirqd/1121750irq/30-eth0_g0_11:22:520
200002770sleep0121750irq/30-eth0_g0_09:53:040
179262720sleep1121750irq/30-eth0_g0_09:43:131
117762530chrt121750irq/30-eth0_g0_11:32:310
121510ksoftirqd/1121750irq/30-eth0_g0_10:34:161
121490ksoftirqd/1121750irq/30-eth0_g0_10:01:431
121490ksoftirqd/1121750irq/30-eth0_g0_09:14:430
187592480sleep1121750irq/30-eth0_g0_11:58:241
121480ksoftirqd/1121750irq/30-eth0_g0_11:49:130
121470ksoftirqd/1121650irq/29-eth0_g0_09:17:351
121460ksoftirqd/1121750irq/30-eth0_g0_09:54:161
121460ksoftirqd/1121650irq/29-eth0_g0_12:15:540
242752450sleep0121650irq/29-eth0_g0_10:08:320
121450ksoftirqd/1121750irq/30-eth0_g0_08:55:501
121450ksoftirqd/1121650irq/29-eth0_g0_09:31:190
121440ksoftirqd/1121750irq/30-eth0_g0_11:40:001
121440ksoftirqd/1121750irq/30-eth0_g0_10:37:040
121750430irq/30-eth0_g0_121ksoftirqd/109:48:121
121750430irq/30-eth0_g0_121ksoftirqd/109:48:121
121650430irq/29-eth0_g0_31ksoftirqd/007:33:080
121650430irq/29-eth0_g0_31ksoftirqd/007:33:080
4482420sleep0121650irq/29-eth0_g0_10:44:100
4482420sleep0121650irq/29-eth0_g0_10:44:100
121650420irq/29-eth0_g0_1413-21sendmail_mailqu10:48:130
121650420irq/29-eth0_g0_13-21kworker/0:111:13:430
121420ksoftirqd/1121650irq/29-eth0_g0_11:05:380
1179099422cyclictest16866-21unixbench_singl09:38:171
121750410irq/30-eth0_g0_1219-21kworker/1:209:34:311
121650410irq/29-eth0_g0_13-21kworker/0:109:52:430
121650410irq/29-eth0_g0_13-21kworker/0:109:52:430
121650410irq/29-eth0_g0_121ksoftirqd/112:32:470
121650410irq/29-eth0_g0_11111-21grep07:03:130
121410ksoftirqd/1121750irq/30-eth0_g0_11:54:191
121410ksoftirqd/1121650irq/29-eth0_g0_12:12:551
121410ksoftirqd/1121650irq/29-eth0_g0_11:12:561
121750400irq/30-eth0_g0_1219-21kworker/1:212:19:071
121750400irq/30-eth0_g0_1219-21kworker/1:211:46:411
121750400irq/30-eth0_g0_121ksoftirqd/109:08:121
121650400irq/29-eth0_g0_31ksoftirqd/009:11:580
121650400irq/29-eth0_g0_13-21kworker/0:112:19:200
121650400irq/29-eth0_g0_13-21kworker/0:111:36:550
121650400irq/29-eth0_g0_13-21kworker/0:109:43:330
121400ksoftirqd/1121750irq/30-eth0_g0_10:29:190
1179099402cyclictest22355-21unixbench_singl07:48:151
1179099401cyclictest25983-21grep12:28:121
1179099401cyclictest25576-21cat08:03:081
121750390irq/30-eth0_g0_16841-21/usr/sbin/munin07:28:051
121750390irq/30-eth0_g0_1219-21kworker/1:210:10:421
121750390irq/30-eth0_g0_1219-21kworker/1:210:04:001
121750390irq/30-eth0_g0_121ksoftirqd/111:28:211
121750390irq/30-eth0_g0_121ksoftirqd/110:17:541
121650390irq/29-eth0_g0_13-21kworker/0:112:03:200
121650390irq/29-eth0_g0_13-21kworker/0:111:47:050
121650390irq/29-eth0_g0_13-21kworker/0:110:01:510
121650390irq/29-eth0_g0_13-21kworker/0:109:42:390
121390ksoftirqd/1121750irq/30-eth0_g0_10:41:550
1179099391cyclictest3868-21/usr/sbin/munin10:58:111
121750380irq/30-eth0_g0_2418-21runrttasks10:53:101
121750380irq/30-eth0_g0_121ksoftirqd/109:28:051
121750380irq/30-eth0_g0_0-21swapper/110:51:291
121750380irq/30-eth0_g0_0-21swapper/110:42:491
121650380irq/29-eth0_g0_31ksoftirqd/012:25:500
121650380irq/29-eth0_g0_31ksoftirqd/009:34:540
121650380irq/29-eth0_g0_19152-21latency_hist12:02:520
121650380irq/29-eth0_g0_13-21kworker/0:111:07:570
121650380irq/29-eth0_g0_13-21kworker/0:109:26:540
121650380irq/29-eth0_g0_121ksoftirqd/109:27:211
121650380irq/29-eth0_g0_0-21swapper/008:28:040
1179099382cyclictest30433-21/usr/sbin/munin08:23:051
1179099381cyclictest5253-21grep11:03:181
1179099381cyclictest27599-21ntpq10:23:121
1179099381cyclictest121642sleep111:33:071
1179099381cyclictest11974-21head09:18:161
121750370irq/30-eth0_g0_1219-21kworker/1:212:23:471
121750370irq/30-eth0_g0_121ksoftirqd/111:09:441
121650370irq/29-eth0_g0_4182-21sed08:48:090
121650370irq/29-eth0_g0_31ksoftirqd/008:27:530
121650370irq/29-eth0_g0_29164-21entropy08:18:060
121650370irq/29-eth0_g0_1964-21runrttasks09:01:450
121650370irq/29-eth0_g0_13-21kworker/0:112:34:390
121650370irq/29-eth0_g0_13-21kworker/0:111:54:500
121650370irq/29-eth0_g0_13-21kworker/0:111:38:440
121650370irq/29-eth0_g0_13-21kworker/0:110:26:140
121650370irq/29-eth0_g0_13-21kworker/0:110:03:250
1179099372cyclictest31599-21df_inode08:28:021
1179099372cyclictest0-21swapper/107:46:041
1179099371cyclictest9753-21taskset11:23:051
1179099371cyclictest8798-21sort09:07:531
1179099371cyclictest8734-21diskmemload12:03:121
1179099371cyclictest3233-21find08:43:131
1179099371cyclictest24801-21unixbench_singl07:58:151
1179099371cyclictest20768-21ls12:08:061
1179099371cyclictest134962sleep107:13:101
121750360irq/30-eth0_g0_753-21sendmail_mailqu08:33:131
121750360irq/30-eth0_g0_1964-21runrttasks07:05:051
121650360irq/29-eth0_g0_3745-21ntp_states10:58:090
121650360irq/29-eth0_g0_31ksoftirqd/008:43:040
121650360irq/29-eth0_g0_26360-21grep10:18:090
121650360irq/29-eth0_g0_21023-21timerandwakeup07:43:130
121650360irq/29-eth0_g0_13-21kworker/0:109:21:200
121650360irq/29-eth0_g0_0-21swapper/007:24:280
11790993623cyclictest0-21swapper/111:19:361
1179099362cyclictest2115-21grep08:38:131
1179099362cyclictest18405-21ntp_states07:33:111
1179099362cyclictest18405-21ntp_states07:33:111
1179099362cyclictest16222-21unixbench_singl07:23:141
1179099361cyclictest0-21swapper/108:16:361
121750350irq/30-eth0_g0_27342-21taskset12:33:301
121750350irq/30-eth0_g0_1964-21runrttasks07:57:511
121750350irq/30-eth0_g0_1179099cyclictest07:38:031
121650350irq/29-eth0_g0_28411-21grep08:13:140
121650350irq/29-eth0_g0_24810-21df10:13:050
121650350irq/29-eth0_g0_1712-21latency08:38:060
121350ksoftirqd/1121750irq/30-eth0_g0_10:43:031
121350ksoftirqd/1121750irq/30-eth0_g0_10:43:031
1179099351cyclictest6766-21taskset08:58:081
1179099351cyclictest15637-21sed11:48:031
121650340irq/29-eth0_g0_7656-21cpu09:03:060
121650340irq/29-eth0_g0_756-21sendmail_mailqu08:33:130
121650340irq/29-eth0_g0_5884-21seq08:53:170
121650340irq/29-eth0_g0_25969-21unixbench_multi08:03:150
121650340irq/29-eth0_g0_24818-21unixbench_singl07:58:150
121650340irq/29-eth0_g0_23198-21missed_timers07:53:090
121650340irq/29-eth0_g0_17307-21rt-features07:28:130
121650340irq/29-eth0_g0_14481-21df_inode07:18:050
121650340irq/29-eth0_g0_12577-21grep07:08:140
1179099342cyclictest26857-21cat08:08:071
1179099341cyclictest287072sleep110:28:051
1179099341cyclictest14866-21sendmail_mailqu07:18:131
121650330irq/29-eth0_g0_26802-21chrt08:08:070
121650330irq/29-eth0_g0_22132-21ps07:48:110
121650330irq/29-eth0_g0_19474-21latency07:38:070
121650330irq/29-eth0_g0_13343-21/usr/sbin/munin07:13:070
1179099331cyclictest0-21swapper/108:52:211
1179099321cyclictest0-21swapper/107:08:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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