You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-15 - 09:29

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 Fri May 15, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
328525049,0sleep20-21swapper/218:50:532
304450460,0irq/25-eth10-21swapper/318:51:113
849323624,0sleep10-21swapper/118:51:521
855623524,0sleep00-21swapper/018:52:350
88889988,0cyclictest3514-21snmpd22:35:561
88899960,0cyclictest0-21swapper/223:03:242
88889965,0cyclictest6320-21sadc22:55:361
88889960,0cyclictest6928-21diskmemload21:08:411
88879965,0cyclictest25052-21ps21:25:520
88879960,0cyclictest0-21swapper/023:29:410
339960,0migration/34990-21sh23:54:063
339960,0migration/34638-21munin-node22:10:543
339960,0migration/332527-21kthreadcore19:35:533
339960,0migration/322779-21aten_r1power_vo23:05:483
339960,0migration/322050-21sh21:02:453
339960,0migration/319494-21sh23:40:563
29725060,0irq/27-eth0-tx-19877-21sensors_volt23:41:002
29725060,0irq/27-eth0-tx-10027-21munin-node19:20:550
29725060,0irq/27-eth0-tx-0-21swapper/221:37:292
29725060,0irq/27-eth0-tx-0-21swapper/221:37:292
29715060,0irq/26-eth0-rx-31062-21perl23:30:493
29715060,0irq/26-eth0-rx-30239-21diskstats00:10:493
29715060,0irq/26-eth0-rx-21153-21ntpq21:40:553
29715060,0irq/26-eth0-rx-0-21swapper/323:58:433
179960,0migration/129655-21sh22:06:131
149960,0migration/03149-21missed_timers23:50:570
149960,0migration/014347-21sh22:19:030
149960,0migration/013614-21timerwakeupswit21:16:010
149960,0migration/013430-21sh23:39:290
149960,0migration/012391-21sh23:57:130
88899955,0cyclictest0-21swapper/222:27:372
88899955,0cyclictest0-21swapper/200:07:152
88899950,0cyclictest0-21swapper/223:20:452
88899950,0cyclictest0-21swapper/222:08:042
88889950,0cyclictest0-21swapper/123:06:461
88889950,0cyclictest0-21swapper/121:15:091
88889950,0cyclictest0-21swapper/100:05:441
88879955,0cyclictest0-21swapper/000:21:330
88879954,0cyclictest8033-21awk20:55:520
88879950,0cyclictest0-21swapper/022:56:060
8215050,0irq/24-0000:00:6928-21diskmemload21:15:372
8215050,0irq/24-0000:00:15518-21latency_hist19:00:372
339950,0migration/39381-21kthreadcore21:35:543
339950,0migration/39381-21kthreadcore21:35:543
339950,0migration/38799-21kthreadcore20:05:523
339950,0migration/38300-21kthreadcore22:35:533
339950,0migration/37431-21aten_r1power_cu21:55:473
339950,0migration/36837-21diskmemload21:14:213
339950,0migration/36516-21taskset20:51:113
339950,0migration/35402-21munin-node19:40:523
339950,0migration/3379-21munin-node20:25:513
339950,0migration/331566-21fschecks_time20:00:493
339950,0migration/329305-21kthreadcore20:20:553
339950,0migration/328393-21needreboot22:45:563
339950,0migration/325803-21kthreadcore22:25:543
339950,0migration/324956-21kthreadcore23:45:523
339950,0migration/324591-21taskset20:16:083
339950,0migration/324066-21kthreadcore00:05:523
339950,0migration/323516-21irqcore19:05:513
339950,0migration/320533-21irqcore20:40:523
339950,0migration/317728-21kthreadcore23:20:543
339950,0migration/317585-21latency_hist19:50:373
339950,0migration/315674-21latency_hist19:00:373
339950,0migration/312947-21kthreadcore19:45:533
339950,0migration/312896-21sh23:17:103
339950,0migration/312245-21taskset20:31:263
29725050,0irq/27-eth0-tx-29363-21ssh23:28:302
29725050,0irq/27-eth0-tx-26546-21grep21:45:532
29725050,0irq/27-eth0-tx-15456-21munin-node22:00:582
29725050,0irq/27-eth0-tx-14138-21ssh21:57:362
29725050,0irq/27-eth0-tx-13758-21ssh22:58:452
29725050,0irq/27-eth0-tx-12876-21ssh00:19:302
29725050,0irq/27-eth0-tx-0-21swapper/223:53:542
29725050,0irq/27-eth0-tx-0-21swapper/222:15:572
29725050,0irq/27-eth0-tx-0-21swapper/221:31:152
29725050,0irq/27-eth0-tx-0-21swapper/200:10:372
29725050,0irq/27-eth0-tx-0-21swapper/020:15:310
29725050,0irq/27-eth0-tx-0-21swapper/019:50:540
29725050,0irq/27-eth0-tx-0-21swapper/019:50:260
29715050,0irq/26-eth0-rx-4777-21kthreadcore19:15:523
29715050,0irq/26-eth0-rx-32176-21fschecks_count21:50:493
29715050,0irq/26-eth0-rx-29606-21ssh22:06:053
29715050,0irq/26-eth0-rx-28100-21which23:25:573
29715050,0irq/26-eth0-rx-16266-21idleruntime22:00:503
29715050,0irq/26-eth0-rx-15719-21if_err_eth022:40:513
29715050,0irq/26-eth0-rx-15097-21entropy23:00:493
29715050,0irq/26-eth0-rx-13423-21ssh20:56:273
29715050,0irq/26-eth0-rx-13405-21runrttasks22:16:203
29715050,0irq/26-eth0-rx-11940-21kthreadcore21:15:553
29715050,0irq/26-eth0-rx-0-21swapper/323:40:303
29715050,0irq/26-eth0-rx-0-21swapper/323:10:483
29715050,0irq/26-eth0-rx-0-21swapper/322:55:563
29715050,0irq/26-eth0-rx-0-21swapper/322:50:523
29715050,0irq/26-eth0-rx-0-21swapper/321:25:573
29715050,0irq/26-eth0-rx-0-21swapper/321:20:433
29715050,0irq/26-eth0-rx-0-21swapper/321:05:543
29715050,0irq/26-eth0-rx-0-21swapper/300:20:553
29715050,0irq/26-eth0-rx-0-21swapper/300:15:503
259950,0migration/25530-21sh22:32:372
259950,0migration/231989-21irqcore22:50:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional