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2026-08-29 - 03:01

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 Sat Aug 29, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2165721310sleep1121750irq/30-eth0_g0_00:31:371
121880ksoftirqd/1121650irq/29-eth0_g0_21:36:250
121840ksoftirqd/1121650irq/29-eth0_g0_23:57:380
121830ksoftirqd/1121650irq/29-eth0_g0_23:55:480
121810ksoftirqd/1121750irq/30-eth0_g0_23:41:221
175592760sleep1121750irq/30-eth0_g0_22:04:241
121700ksoftirqd/1121750irq/30-eth0_g0_19:38:110
225312670sleep1121750irq/30-eth0_g0_22:25:191
121670ksoftirqd/1121750irq/30-eth0_g0_23:27:031
75892590sleep0121750irq/30-eth0_g0_21:22:290
121520ksoftirqd/1121750irq/30-eth0_g0_23:36:371
121520ksoftirqd/1121750irq/30-eth0_g0_23:36:371
121520ksoftirqd/1121650irq/29-eth0_g0_23:07:250
37222510sleep0121650irq/29-eth0_g0_21:06:270
121750480irq/30-eth0_g0_0-21swapper/122:33:371
121470ksoftirqd/1121750irq/30-eth0_g0_22:55:241
121470ksoftirqd/1121650irq/29-eth0_g0_22:27:081
121750460irq/30-eth0_g0_1219-21kworker/1:221:12:201
121460ksoftirqd/1121750irq/30-eth0_g0_21:09:131
121450ksoftirqd/1121650irq/29-eth0_g0_19:52:331
121450ksoftirqd/1121650irq/29-eth0_g0_19:52:331
121450ksoftirqd/1121650irq/29-eth0_g0_00:15:051
113682450sleep1121650irq/29-eth0_g0_21:38:401
300432440chrt121650irq/29-eth0_g0_22:56:151
121440ksoftirqd/1121750irq/30-eth0_g0_22:53:040
71732430sleep1121750irq/30-eth0_g0_23:34:061
121430ksoftirqd/1121750irq/30-eth0_g0_21:29:401
121750420irq/30-eth0_g0_1219-21kworker/1:222:17:271
121750420irq/30-eth0_g0_1219-21kworker/1:221:54:501
121750420irq/30-eth0_g0_1219-21kworker/1:221:25:021
121750420irq/30-eth0_g0_1219-21kworker/1:200:28:181
121750420irq/30-eth0_g0_1219-21kworker/1:200:25:021
121650420irq/29-eth0_g0_13-21kworker/0:121:56:510
121650420irq/29-eth0_g0_13-21kworker/0:100:16:250
121420ksoftirqd/1121650irq/29-eth0_g0_22:01:001
121420ksoftirqd/1121650irq/29-eth0_g0_19:41:161
121420ksoftirqd/1121650irq/29-eth0_g0_19:21:271
121420ksoftirqd/1117450irq/72-mmc020:25:341
663199411cyclictest9541-21cat21:31:211
121750410irq/30-eth0_g0_1219-21kworker/1:200:17:291
121750410irq/30-eth0_g0_121ksoftirqd/119:30:451
121650410irq/29-eth0_g0_13-21kworker/0:122:24:470
121650410irq/29-eth0_g0_13-21kworker/0:121:49:030
121650410irq/29-eth0_g0_121ksoftirqd/122:45:360
121650410irq/29-eth0_g0_121ksoftirqd/122:45:360
121650410irq/29-eth0_g0_0-21swapper/019:01:250
121650410irq/29-eth0_g0_0-21swapper/019:01:250
21292400sleep1121650irq/29-eth0_g0_23:12:311
121750400irq/30-eth0_g0_2900-21/usr/sbin/munin23:16:221
121750400irq/30-eth0_g0_2900-21/usr/sbin/munin23:16:221
121650400irq/29-eth0_g0_6208-21/usr/sbin/munin23:31:180
121650400irq/29-eth0_g0_13-21kworker/0:123:03:170
121650400irq/29-eth0_g0_13-21kworker/0:121:32:330
121650400irq/29-eth0_g0_13-21kworker/0:100:03:500
121650400irq/29-eth0_g0_121ksoftirqd/100:06:150
121400ksoftirqd/1121650irq/29-eth0_g0_21:46:251
121400ksoftirqd/1121650irq/29-eth0_g0_20:10:201
121400ksoftirqd/1121650irq/29-eth0_g0_00:07:501
121750390irq/30-eth0_g0_5674-21/usr/sbin/munin19:01:181
121750390irq/30-eth0_g0_5674-21/usr/sbin/munin19:01:181
121750390irq/30-eth0_g0_121ksoftirqd/123:46:241
121650390irq/29-eth0_g0_663099cyclictest00:26:150
121650390irq/29-eth0_g0_19581-21swap22:11:270
121650390irq/29-eth0_g0_13-21kworker/0:122:58:200
121650390irq/29-eth0_g0_13-21kworker/0:121:43:160
121650390irq/29-eth0_g0_13-21kworker/0:121:12:080
121650390irq/29-eth0_g0_121ksoftirqd/122:20:230
121650390irq/29-eth0_g0_121ksoftirqd/100:32:320
121650390irq/29-eth0_g0_0-21swapper/019:26:210
121390ksoftirqd/1121750irq/30-eth0_g0_22:27:380
121750380irq/30-eth0_g0_1219-21kworker/1:223:54:091
121750380irq/30-eth0_g0_1219-21kworker/1:223:07:581
121750380irq/30-eth0_g0_1219-21kworker/1:222:12:211
121750380irq/30-eth0_g0_0-21swapper/122:39:281
121650380irq/29-eth0_g0_31ksoftirqd/020:56:060
121650380irq/29-eth0_g0_13-21kworker/0:123:42:470
121650380irq/29-eth0_g0_13-21kworker/0:123:12:360
121650380irq/29-eth0_g0_13-21kworker/0:122:05:130
121380ksoftirqd/1121650irq/29-eth0_g0_20:02:191
121380ksoftirqd/1121650irq/29-eth0_g0_19:40:051
121380ksoftirqd/1121650irq/29-eth0_g0_19:31:221
663199375cyclictest2109-21lldpd20:46:141
663199372cyclictest26673-21unixbench_multi20:26:261
121750370irq/30-eth0_g0_1219-21kworker/1:222:47:121
121750370irq/30-eth0_g0_1219-21kworker/1:221:20:181
121650370irq/29-eth0_g0_26581-21sendmail_mailqu20:26:250
121650370irq/29-eth0_g0_13-21kworker/0:123:49:190
121650370irq/29-eth0_g0_13-21kworker/0:121:17:390
121650370irq/29-eth0_g0_121ksoftirqd/123:18:300
121650370irq/29-eth0_g0_121ksoftirqd/123:18:300
121650370irq/29-eth0_g0_121ksoftirqd/122:35:180
663199361cyclictest27888-21grep20:31:261
663199361cyclictest12602-21taskset23:56:201
121750360irq/30-eth0_g0_8216-21awk19:11:261
121750360irq/30-eth0_g0_6740-21cpu19:06:161
121750360irq/30-eth0_g0_23293-21runrttasks20:13:461
121750360irq/30-eth0_g0_1219-21kworker/1:222:43:401
121750360irq/30-eth0_g0_1219-21kworker/1:222:43:401
121750360irq/30-eth0_g0_1219-21kworker/1:222:07:591
121750360irq/30-eth0_g0_0-21swapper/123:03:321
121650360irq/29-eth0_g0_25386-21latency22:36:190
121650360irq/29-eth0_g0_13-21kworker/0:100:23:570
121650360irq/29-eth0_g0_0-21swapper/023:25:360
121360ksoftirqd/1121750irq/30-eth0_g0_22:06:540
663199352cyclictest2101-21irqstats21:01:181
663199352cyclictest2101-21irqstats21:01:181
663199351cyclictest4458-21unixbench_singl23:21:281
663199351cyclictest19413-21vmstat19:56:271
663199351cyclictest19413-21vmstat19:56:271
121750350irq/30-eth0_g0_663099cyclictest22:46:260
121750350irq/30-eth0_g0_1219-21kworker/1:200:01:111
121650350irq/29-eth0_g0_8243-21latency21:26:200
121650350irq/29-eth0_g0_15386-21/usr/sbin/munin19:41:210
121650350irq/29-eth0_g0_13-21kworker/0:121:51:590
121650350irq/29-eth0_g0_0-21swapper/000:14:070
663199341cyclictest29978-21wc20:41:251
663199341cyclictest12307-21sed21:41:261
121650340irq/29-eth0_g0_30161-21runrttasks20:42:000
121650340irq/29-eth0_g0_31ksoftirqd/023:38:260
121650340irq/29-eth0_g0_31ksoftirqd/023:38:260
121650340irq/29-eth0_g0_0-21swapper/020:46:210
121650340irq/29-eth0_g0_0-21swapper/019:46:200
663199331cyclictest32295-21ps20:51:281
663199331cyclictest16302-21df_abs19:46:171
663199331cyclictest0-21swapper/120:39:381
121750330irq/30-eth0_g0_9416-21sendmail_mailqu19:16:251
121650330irq/29-eth0_g0_8332-21unixbench_singl19:11:270
121650330irq/29-eth0_g0_2973-21runrttasks21:05:500
121650330irq/29-eth0_g0_2973-21runrttasks21:05:500
121650330irq/29-eth0_g0_21654-21awk20:06:240
121650330irq/29-eth0_g0_13094-21sendmail_mailqu19:31:250
121650330irq/29-eth0_g0_0-21swapper/020:21:260
121650330irq/29-eth0_g0_0-21swapper/019:06:200
663199321cyclictest902-21missed_timers20:56:201
121650320irq/29-eth0_g0_5814-21sshd23:27:350
121650320irq/29-eth0_g0_24212-21unixbench_multi20:16:270
121650320irq/29-eth0_g0_23055-21grep20:11:270
121650320irq/29-eth0_g0_1802-21latency_hist21:01:060
121650320irq/29-eth0_g0_17778-21missed_timers19:51:210
121650320irq/29-eth0_g0_17778-21missed_timers19:51:210
121650320irq/29-eth0_g0_0-21swapper/020:31:170
121650320irq/29-eth0_g0_0-21swapper/019:16:190
121650310irq/29-eth0_g0_20649-21taskset20:01:320
121650310irq/29-eth0_g0_19284-21timerandwakeup19:56:260
121650310irq/29-eth0_g0_19284-21timerandwakeup19:56:260
121650310irq/29-eth0_g0_0-21swapper/019:21:200
663199301cyclictest237972sleep120:16:181
121650300irq/29-eth0_g0_29242-21sshd20:40:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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