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2026-09-07 - 04:08
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

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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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, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Mon Sep 07, 2026 00:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3171698226732651,13sleep40-21swapper/419:06:104
31717642846836,5sleep50-21swapper/519:07:075
31721439913316,91cyclictest0-21swapper/022:45:130
31721439913316,91cyclictest0-21swapper/022:45:130
3172143991302,84cyclictest3298569-21kworker/u12:2+rpciod@
rpc_async_schedule		23:50:410
3172143991251,86cyclictest0-21swapper/000:15:420
3172143991232,99cyclictest0-21swapper/021:54:490
31721439912077,32cyclictest67550irq/529-eth0-Tx21:58:130
3172143991182,99cyclictest0-21swapper/020:00:450
3172143991181,95cyclictest3409911-21ssh23:33:410
3172143991181,95cyclictest3409911-21ssh23:33:400
3172143991151,79cyclictest0-21swapper/021:43:110
31721439911419,70cyclictest67550irq/529-eth0-Tx22:20:280
31721439911419,70cyclictest67550irq/529-eth0-Tx22:20:280
31721439911329,45cyclictest67550irq/529-eth0-Tx00:35:400
3172143991131,3cyclictest0-21swapper/021:32:070
31721609911298,7cyclictest3298569-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		00:08:343
3172143991122,75cyclictest3381222-21taskset23:11:370
31721439911224,50cyclictest3238999-21cut21:25:180
3172143991121,101cyclictest0-21swapper/020:45:170
317216499111105,3cyclictest0-21swapper/400:13:354
317216499111105,3cyclictest0-21swapper/400:13:354
3172143991112,88cyclictest3298158-21ssh22:10:000
3172143991112,88cyclictest3298158-21ssh22:10:000
3172143991112,84cyclictest3233022-21ssh21:20:240
3172143991111,88cyclictest0-21swapper/000:34:470
3172143991106,47cyclictest0-21swapper/023:35:440
31721439910935,44cyclictest67450irq/528-eth0-Tx22:55:340
3172143991092,46cyclictest3178476-21taskset19:25:060
3172143991091,91cyclictest0-21swapper/000:21:490
3172143991091,70cyclictest0-21swapper/000:00:000
31721539910895,6cyclictest3215057-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		21:42:432
31721539910894,7cyclictest3174522-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		19:27:162
31721439910867,31cyclictest67550irq/529-eth0-Tx23:29:390
31721439910867,31cyclictest67550irq/529-eth0-Tx23:29:380
31721439910824,63cyclictest67450irq/528-eth0-Tx22:00:260
31721439910824,63cyclictest67450irq/528-eth0-Tx22:00:260
31721439910823,56cyclictest3269896-21ssh21:48:200
3172143991081,97cyclictest0-21swapper/019:34:010
3172143991081,97cyclictest0-21swapper/019:34:000
3172143991071,96cyclictest0-21swapper/022:12:030
3172143991071,96cyclictest0-21swapper/022:12:030
3172143991071,84cyclictest0-21swapper/022:40:210
3172143991062,86cyclictest3448237-21sshd00:02:080
3172143991062,81cyclictest3481794-21ssh00:27:240
3172143991062,81cyclictest3333289-21proc_pri22:35:410
31721439910567,28cyclictest67350irq/527-eth0-Tx23:24:140
3172143991052,90cyclictest3185795-21sed19:40:450
3172143991052,5cyclictest3209321-21irqstats20:40:230
3172143991042,80cyclictest3325899-21if_eth022:30:240
31721439910420,58cyclictest48-21rcuop/423:41:540
31721439910362,30cyclictest67450irq/528-eth0-Tx23:18:150
31721439910341,12cyclictest0-21swapper/019:10:580
3172143991032,78cyclictest0-21swapper/000:12:370
3172143991032,78cyclictest0-21swapper/000:12:360
31721609910288,7cyclictest3298569-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		23:23:033
3172143991022,7cyclictest15-21rcuc/021:05:450
3172143991022,4cyclictest0-21swapper/022:55:010
3172143991022,4cyclictest0-21swapper/022:55:010
31721439910164,22cyclictest67450irq/528-eth0-Tx20:55:130
3172143991015,6cyclictest3202340-21runrttasks20:24:040
3172143991012,75cyclictest3305816-21/usr/sbin/munin22:15:210
3172143991012,75cyclictest3305816-21/usr/sbin/munin22:15:210
3172143991012,5cyclictest3221974-21ld21:10:410
3172143991012,5cyclictest3221974-21ld21:10:410
31721439910121,57cyclictest67650irq/530-eth0-Tx23:06:350
3172143991002,93cyclictest0-21swapper/019:24:230
3172143991002,93cyclictest0-21swapper/019:24:230
3172143991002,8cyclictest3425070-21ssh23:45:100
3172143991002,74cyclictest3202714-21/usr/sbin/munin20:25:200
3172143991002,72cyclictest3226220-21awk21:15:230
3172143991002,72cyclictest3226220-21awk21:15:230
31721439910014,25cyclictest0-21swapper/000:09:230
3172148999960,18cyclictest3185420-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		19:57:231
317214399992,8cyclictest3252927-21/usr/sbin/munin21:35:250
317214399992,6cyclictest3175138-21ntpq19:15:310
317214399991,87cyclictest0-21swapper/022:28:550
317214399986,34cyclictest0-21swapper/023:01:030
3172143999848,31cyclictest0-21swapper/020:15:270
3172143999848,31cyclictest0-21swapper/020:15:270
317214399982,91cyclictest3189650-21find19:50:400
317214399972,73cyclictest3204723-21/usr/sbin/munin20:30:280
317214399972,73cyclictest3183353-21ntp_states19:35:370
317214399972,5cyclictest3195465-21open_inodes20:05:390
317214399972,5cyclictest3195465-21open_inodes20:05:390
3172148999682,6cyclictest3278135-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		22:02:451
3172148999682,6cyclictest3278135-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		22:02:451
3172143999654,33cyclictest0-21swapper/021:04:130
317214399961,81cyclictest0-21swapper/019:55:270
317214399951,82cyclictest0-21swapper/020:37:230
3172160999482,6cyclictest3382483-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		23:43:063
3172143999448,31cyclictest0-21swapper/020:10:030
317214399942,5cyclictest3213333-21irqstats20:50:230
317214399942,5cyclictest3213333-21irqstats20:50:230
3172143999350,30cyclictest0-21swapper/019:49:170
34788682920,4sleep10-21swapper/100:25:241
3172153998874,7cyclictest3298569-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		22:42:542
3172170998781,3cyclictest0-21swapper/519:20:375
3172170998781,3cyclictest0-21swapper/519:20:365
3172148998771,8cyclictest3440719-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		23:58:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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