You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-21 - 21:58

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 #7, 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 
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 rack7slot4s.osadl.org (updated Sun Jun 21, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27802996036,15cyclictest35966irq/58-eth009:20:113
27802996029,15cyclictest35966irq/58-eth009:10:123
2771599591,10cyclictest12-21ksoftirqd/012:25:120
2771599583,40cyclictest2022-21ssh10:50:110
2771599491,41cyclictest29459-21ssh11:05:140
27740994524,18cyclictest13484-21diskmemload11:30:111
27740994436,5cyclictest0-21swapper/111:35:121
27740994435,6cyclictest27253-21apt-get12:15:121
2771599443,6cyclictest12-21ksoftirqd/011:15:130
2771599436,9cyclictest12-21ksoftirqd/011:25:130
2771599435,4cyclictest131rcu_preempt08:30:120
2771599432,33cyclictest26807-21sh09:35:110
2771599431,32cyclictest24323-21ssh11:20:130
27740994228,9cyclictest12707-21apt-get09:45:141
27740994216,8cyclictest2456-21ssh09:55:251
27740994210,16cyclictest14414-21cut08:35:211
27740994135,3cyclictest9122-21apt-get12:05:141
27740994134,3cyclictest5071-21apt-get11:45:111
27740994117,11cyclictest19894-21ntp_kernel_pll_10:40:251
27740994115,11cyclictest5611-21netstat10:50:221
27740994115,10cyclictest30806-21ssh11:58:331
2771599415,6cyclictest131rcu_preempt12:00:130
2771599413,35cyclictest8674-21ssh09:25:130
2771599411,3cyclictest131rcu_preempt11:00:120
2771599411,34cyclictest12725-21ssh09:45:140
2780299401,24cyclictest35966irq/58-eth010:15:133
2780299401,21cyclictest35966irq/58-eth011:50:133
2774099403,29cyclictest22940-21ssh09:15:111
27740994030,6cyclictest18211-21apt-get12:10:121
27740994028,8cyclictest30250-21apt-get10:30:131
27740994025,9cyclictest13028-21apt-get12:25:131
2774099402,32cyclictest7007-21ssh10:35:131
27740994018,17cyclictest0-21swapper/112:35:121
27740994017,9cyclictest31788-21/usr/sbin/munin08:55:151
27740994016,10cyclictest30494-21ssh09:54:501
27740994015,22cyclictest0-21swapper/108:05:131
27740994014,10cyclictest16970-21ssh10:05:141
27740994013,11cyclictest10570-21ssh09:42:591
2771599407,7cyclictest131rcu_preempt09:05:150
2780299392,27cyclictest35966irq/58-eth011:25:133
27740993917,10cyclictest18736-21ssh09:10:341
27740993916,10cyclictest28412-21irqrtprio07:10:181
27740993914,9cyclictest18024-21cut11:15:221
27740993914,10cyclictest16499-21ssh10:04:591
27740993913,9cyclictest10980-21users11:10:311
27740993913,11cyclictest21978-21latency_hist08:45:011
27740993913,10cyclictest9449-21kthreadcore09:25:171
27740993912,12cyclictest13314-21ntp_192.168.11407:25:231
27740993912,11cyclictest28233-21cut08:50:191
2780299386,26cyclictest35966irq/58-eth012:20:133
2780299382,20cyclictest0-21swapper/312:35:113
27740993826,9cyclictest5101-21apt-get07:20:121
27740993817,10cyclictest31077-21ssh10:46:311
27740993815,15cyclictest7878-21/usr/sbin/munin08:30:161
27740993815,14cyclictest7144-21kthreadcore09:00:231
27740993814,8cyclictest28135-21mailstats11:20:271
27740993814,8cyclictest17758-21load11:50:231
27740993814,8cyclictest11570-21rm12:23:461
27740993814,10cyclictest18690-21ssh10:58:361
27740993812,9cyclictest5824-21cat11:25:281
27740993812,10cyclictest1601-21ssh10:14:091
2777499372,28cyclictest18731-21cut10:05:232
27774993711,20cyclictest26955-21ntp_kernel_pll_11:55:232
27740993721,13cyclictest6320-21apt-get07:55:111
27740993714,8cyclictest4852-21latency_hist07:20:011
27740993714,8cyclictest27761-21ntp_192.168.11407:40:231
27740993714,8cyclictest27761-21ntp_192.168.11407:40:221
27740993714,10cyclictest24364-21sh11:00:291
27740993713,8cyclictest23450-21cut12:30:201
27740993713,10cyclictest4445-21cat12:00:301
27740993712,9cyclictest23153-21ssh09:31:101
27740993712,9cyclictest23153-21ssh09:31:091
27740993712,9cyclictest14585-21ntp_192.168.11408:00:251
27740993712,11cyclictest1973-21ssh09:38:401
27740993711,10cyclictest3498-21/usr/sbin/munin08:25:181
2771599371,23cyclictest9120-21ssh12:05:130
27740993616,7cyclictest13484-21diskmemload11:43:151
27740993614,9cyclictest19616-21entropy07:35:151
27740993613,8cyclictest735-21ntp_states11:05:261
27740993612,11cyclictest32150-21cut07:45:201
27740993611,8cyclictest9065-21ssh10:17:071
27740993610,10cyclictest13009-21usage_Anybus09:05:301
2780299356,19cyclictest35966irq/58-eth009:50:133
2780299353,22cyclictest35966irq/58-eth010:05:153
2780299352,22cyclictest35966irq/58-eth012:05:133
27740993523,8cyclictest21069-21apt-get10:25:121
27740993523,8cyclictest21069-21apt-get10:25:121
27740993519,13cyclictest0-21swapper/108:20:131
27740993514,15cyclictest0-21swapper/110:20:131
27740993513,14cyclictest7684-21sh09:24:211
2777499342,16cyclictest11231-21sh10:19:392
27740993413,8cyclictest21441-21kthreadcore08:10:191
2771599347,3cyclictest131rcu_preempt10:15:140
27740993311,7cyclictest18123-21ntp_192.168.11407:30:251
2771599339,3cyclictest131rcu_preempt08:45:110
2771599334,5cyclictest131rcu_preempt08:40:120
2780299324,17cyclictest35966irq/58-eth010:50:123
2780299324,17cyclictest35966irq/58-eth009:45:133
2780299323,17cyclictest35966irq/58-eth010:45:143
2777499321,19cyclictest2486-21ssh12:35:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional