You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-20 - 01:29

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #1, slot #2

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot2s.osadl.org (updated Thu Aug 20, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450350,0irq/25-eth10-21swapper/318:42:223
1371223422,0sleep00-21swapper/018:46:070
1356223425,0sleep20-21swapper/218:44:252
735222622,0sleep10-21swapper/118:41:281
8215060,0irq/24-0000:00:1433-21munin-run22:21:212
35160,0ktimersoftd/30-21swapper/321:37:203
339960,0migration/38821-21sh22:02:343
339960,0migration/36967-21sendmail_mailqu22:41:413
339960,0migration/33246-21sh21:21:013
339960,0migration/326785-21sh20:53:033
339960,0migration/325238-21sh21:52:173
339960,0migration/311628-21munin-node23:06:353
29715060,0irq/26-eth0-rx-6653-21kthreadcore20:16:383
29715060,0irq/26-eth0-rx-23203-21ssh23:13:393
29715060,0irq/26-eth0-rx-20793-21fschecks_time21:11:353
29715060,0irq/26-eth0-rx-18106-21munin-node22:51:363
29715060,0irq/26-eth0-rx-15586-21munin-run23:31:213
149960,0migration/07764-21latency22:01:370
149960,0migration/07372-21sh23:03:410
149960,0migration/027888-21latency19:41:390
149960,0migration/015706-21munin-node22:06:400
149960,0migration/01167-21aten_r1power_en22:41:310
138039960,0cyclictest0-21swapper/122:53:571
138039960,0cyclictest0-21swapper/122:50:481
8215050,0irq/24-0000:00:27861-21awk21:16:222
8215050,0irq/24-0000:00:20465-21munin-run18:51:222
339950,0migration/38152-21idleruntime23:46:343
339950,0migration/37396-21taskset23:25:403
339950,0migration/37096-21kthreadcore19:26:393
339950,0migration/36269-21sh00:05:463
339950,0migration/330574-21munin-node19:46:383
339950,0migration/327098-21kthreadcore23:16:393
339950,0migration/326246-21munin-node22:36:343
339950,0migration/32529-21runrttasks22:21:373
339950,0migration/32373-21idleruntime19:01:363
339950,0migration/322201-21latency20:01:403
339950,0migration/322147-21sh00:15:483
339950,0migration/321199-21timerwakeupswit23:51:433
339950,0migration/319507-21taskset20:50:163
339950,0migration/318187-21kthreadcore19:11:383
339950,0migration/316900-21taskset22:08:043
339950,0migration/31434-21if_eth023:01:353
339950,0migration/313124-21munin-node21:06:383
339950,0migration/313026-21runrttasks00:07:003
339950,0migration/312863-21kthreadcore19:56:393
29725050,0irq/27-eth0-tx-9165-21ssh22:46:302
29725050,0irq/27-eth0-tx-6086-21cut22:01:372
29725050,0irq/27-eth0-tx-2548-21munin-node19:26:330
29725050,0irq/27-eth0-tx-25026-21munin-node22:56:412
29725050,0irq/27-eth0-tx-23817-21munin-node23:36:372
29725050,0irq/27-eth0-tx-15963-21munin-node19:36:480
29725050,0irq/27-eth0-tx-15020-21munin-node19:11:370
29725050,0irq/27-eth0-tx-12148-21munin-node21:06:392
29725050,0irq/27-eth0-tx-10348-21ssh21:23:192
29725050,0irq/27-eth0-tx-0-21swapper/223:56:382
29725050,0irq/27-eth0-tx-0-21swapper/223:43:522
29725050,0irq/27-eth0-tx-0-21swapper/222:24:222
29725050,0irq/27-eth0-tx-0-21swapper/221:50:382
29725050,0irq/27-eth0-tx-0-21swapper/221:31:272
29725050,0irq/27-eth0-tx-0-21swapper/220:56:452
29725050,0irq/27-eth0-tx-0-21swapper/020:48:090
29725050,0irq/27-eth0-tx-0-21swapper/020:35:520
29725050,0irq/27-eth0-tx-0-21swapper/019:34:090
29715050,0irq/26-eth0-rx-5153-21kthreadcore21:41:383
29715050,0irq/26-eth0-rx-30017-21kthreadcore21:56:383
29715050,0irq/26-eth0-rx-28366-21tail20:56:343
29715050,0irq/26-eth0-rx-18346-21fschecks_time22:31:353
29715050,0irq/26-eth0-rx-0-21swapper/323:56:253
29715050,0irq/26-eth0-rx-0-21swapper/323:44:143
29715050,0irq/26-eth0-rx-0-21swapper/323:31:323
29715050,0irq/26-eth0-rx-0-21swapper/323:01:093
29715050,0irq/26-eth0-rx-0-21swapper/322:48:283
29715050,0irq/26-eth0-rx-0-21swapper/322:26:383
29715050,0irq/26-eth0-rx-0-21swapper/322:18:323
29715050,0irq/26-eth0-rx-0-21swapper/322:15:563
29715050,0irq/26-eth0-rx-0-21swapper/321:21:303
27150,0ktimersoftd/20-21swapper/221:37:202
259950,0migration/29832-21kthreadcore23:06:342
259950,0migration/231091-21kthreadcore18:56:392
259950,0migration/217188-21ntp_offset21:26:412
259950,0migration/214630-21latency_hist00:11:212
259950,0migration/211313-21switchtime20:41:432
259950,0migration/211313-21switchtime20:41:432
249950,0watchdog/230368-21cat20:31:442
249950,0watchdog/22214-21missed_timers19:46:402
249950,0watchdog/218773-21fschecks_count22:11:352
19150,0ktimersoftd/10-21swapper/121:44:261
179950,0migration/1528-21irqrtprio23:41:391
179950,0migration/14545-21fschecks_count21:01:351
179950,0migration/129446-21kthreadcore21:56:381
179950,0migration/12927-21vmstat19:46:451
179950,0migration/12318-21sh21:18:141
149950,0migration/09121-21sh22:46:220
149950,0migration/09034-21sh22:25:090
149950,0migration/08783-21kthreadcore00:06:390
149950,0migration/07919-21fschecks_time23:46:330
149950,0migration/05868-21sh23:42:510
149950,0migration/032149-21kthreadcore19:21:380
149950,0migration/030925-21kthreadcore21:36:390
149950,0migration/03012-21sh21:41:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional