You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-07 - 20:47

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 Mon Sep 07, 2026 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2222099508,32cyclictest2934-21ssh09:25:121
2222099508,32cyclictest2934-21ssh09:25:121
2220999492,2cyclictest13914-21apt-get11:55:130
2223899484,32cyclictest35966irq/58-eth011:30:113
2222999462,39cyclictest31913-21ssh12:05:142
2220999462,3cyclictest0-21swapper/008:35:130
2222999446,24cyclictest24550-21ssh09:55:112
2220999442,2cyclictest0-21swapper/012:25:130
2220999442,2cyclictest0-21swapper/010:50:170
2220999441,3cyclictest0-21swapper/009:55:120
2220999441,2cyclictest8344-21apt-get09:10:120
2220999441,2cyclictest0-21swapper/008:15:130
2220999431,2cyclictest0-21swapper/012:30:120
2220999431,2cyclictest0-21swapper/012:30:120
22209994234,5cyclictest26526-21ssh12:20:130
2220999422,3cyclictest0-21swapper/008:40:130
2220999422,2cyclictest9219-21apt-get07:30:120
2223899415,21cyclictest35966irq/58-eth010:50:173
2223899411,20cyclictest35966irq/58-eth012:25:133
2220999412,4cyclictest0-21swapper/007:55:130
2220999412,3cyclictest0-21swapper/008:50:130
2222099401,32cyclictest17470-21ssh10:45:131
2220999402,2cyclictest0-21swapper/012:00:130
2220999401,4cyclictest31892-21ssh12:05:130
2220999401,4cyclictest0-21swapper/007:15:130
2220999401,2cyclictest0-21swapper/010:35:130
2222999391,8cyclictest29371-21cut07:50:192
2220999392,4cyclictest0-21swapper/007:50:140
2220999391,31cyclictest0-21swapper/010:10:180
2220999390,4cyclictest6553-21apt-get09:45:130
2223899386,18cyclictest35966irq/58-eth010:25:143
2223899384,22cyclictest35966irq/58-eth011:20:123
2222999381,9cyclictest21624-21kthreadcore11:40:212
2222999381,9cyclictest20640-21kthreadcore10:45:222
2222999381,13cyclictest25871-21ntpq07:10:252
2220999382,3cyclictest0-21swapper/008:00:130
2220999381,4cyclictest0-21swapper/007:40:130
2220999381,4cyclictest0-21swapper/007:40:130
2220999381,3cyclictest24968-21apt-get08:20:140
2220999381,3cyclictest0-21swapper/010:45:120
2222999372,19cyclictest14800-21ssh10:42:182
22229993716,18cyclictest24777-21ssh09:35:282
2222999371,18cyclictest0-21swapper/207:35:142
2222999371,18cyclictest0-21swapper/207:35:132
2222999371,13cyclictest13482-21kthreadcore11:00:202
2220999372,3cyclictest4411-21apt-get07:25:120
2220999371,3cyclictest0-21swapper/011:40:130
2220999370,5cyclictest2936-21apt-get09:25:140
2220999370,5cyclictest2936-21apt-get09:25:140
2223899360,22cyclictest35966irq/58-eth012:10:133
2222999367,7cyclictest0-21swapper/211:20:112
2222999362,28cyclictest23484-21sed10:30:182
2222999362,18cyclictest26650-21basename09:20:182
22220993617,10cyclictest630-21Async09:36:311
2220999363,29cyclictest11990-21ssh11:00:130
2220999362,31cyclictest28311-21sh10:15:120
2220999361,5cyclictest0-21swapper/012:10:140
2220999361,4cyclictest13900-21ssh10:25:120
2222999351,8cyclictest7192-21head12:25:292
2222099353,28cyclictest11921-21ssh09:30:121
2220999351,4cyclictest24744-21ssh11:25:130
2220999351,2cyclictest17510-21apt-get12:15:120
2220999351,2cyclictest1181-21apt-get10:00:140
2220999351,10cyclictest4373-21cut10:55:200
22238993417,11cyclictest35966irq/58-eth010:45:123
2222999341,9cyclictest28464-21fschecks_count10:15:152
2222999341,8cyclictest19959-21ntp_kernel_pll_08:45:252
2222999341,6cyclictest6239-21latency_hist11:15:012
2222999341,15cyclictest3185-21munin-run09:05:012
2222999341,13cyclictest8245-21kthreadcore10:20:222
2222999341,13cyclictest20150-21kthreadcore12:15:212
2222999340,9cyclictest8539-21/usr/sbin/munin12:10:302
2222999340,14cyclictest17790-21cut09:15:182
2222099343,16cyclictest6570-21ssh09:45:131
2220999343,3cyclictest15345-21apt-get08:10:130
2220999341,9cyclictest29969-21nfs_client09:20:250
2220999341,8cyclictest14205-21fw_packets07:35:150
2220999341,8cyclictest14205-21fw_packets07:35:150
2220999341,10cyclictest21196-21diskstats12:35:150
2222999332,9cyclictest0-21swapper/207:25:142
2222999332,10cyclictest31977-21kthreadcore08:25:212
2222999331,8cyclictest8328-21kthreadcore11:50:212
2222999331,8cyclictest1196-21ssh10:00:142
2222999331,11cyclictest12672-21ntp_states07:30:262
2222999330,13cyclictest10310-21latency_hist08:05:012
2220999335,25cyclictest27375-21sed07:45:270
2220999332,3cyclictest10538-21apt-get08:05:120
2220999332,2cyclictest0-21swapper/011:35:110
2220999331,9cyclictest5095-21ntp_states11:30:250
2220999331,11cyclictest29614-21awk11:10:010
2220999331,11cyclictest23289-21if_eth010:30:170
2220999331,11cyclictest1918-21memory09:00:220
2220999331,10cyclictest6182-21idleruntime-cro09:45:010
2220999331,10cyclictest18960-21tr09:50:230
2220999330,4cyclictest10170-21apt-get10:05:140
2220999330,3cyclictest26191-21apt-get08:55:110
2223899323,17cyclictest35966irq/58-eth009:00:123
2223899322,20cyclictest35966irq/58-eth010:05:123
2223899322,19cyclictest35966irq/58-eth010:10:143
2222999321,9cyclictest2129-21rm11:30:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional