You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-16 - 16:57

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 #e, slot #6

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
  TI
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Sun Aug 16, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1845870991001,3cyclictest0-21swapper/007:15:160
1845870999248,39cyclictest0-21swapper/007:45:010
184587299861,28cyclictest1855494-21kworker/u8:3+ext4-rsv-conversion08:10:011
1845872998276,4cyclictest231ktimers/109:35:011
184587099791,3cyclictest1855798-21tune2fs08:05:190
184587099791,3cyclictest0-21swapper/010:35:140
184587099752,5cyclictest1856677-21fschecks_time08:10:210
184587099742,65cyclictest1853618-21grep07:50:280
184587099741,2cyclictest0-21swapper/007:30:220
184587099741,2cyclictest0-21swapper/007:30:220
1845870997369,2cyclictest0-21swapper/008:50:020
184587099722,61cyclictest1871683-21latency_hist09:40:010
184587099711,3cyclictest0-21swapper/011:50:010
184587099701,3cyclictest0-21swapper/009:55:000
184587099691,4cyclictest0-21swapper/011:55:230
184587099672,5cyclictest1859610-21grep08:25:280
184587099672,4cyclictest1870178-21fschecks_count09:30:210
184587099671,5cyclictest1855053-21ssh08:00:210
184587099671,5cyclictest1855053-21ssh08:00:200
184587099671,2cyclictest1881759-21apt-get10:40:050
1845870996523,35cyclictest0-21swapper/007:10:200
184587099651,5cyclictest1888462-21phc2sys11:15:280
184587099651,5cyclictest1863602-21meminfo08:50:250
184587099651,3cyclictest1897679-21dropbear12:10:200
184587099651,3cyclictest0-21swapper/011:50:150
1845872996421,13cyclictest1872594-21/usr/sbin/munin09:45:201
184587099644,2cyclictest0-21swapper/008:45:010
1845870996437,23cyclictest20850irq/208-8000000.ethernet10:15:320
1845870996437,22cyclictest1875104-21wc10:00:010
1845870996422,9cyclictest1880815-21grep10:30:280
184587099641,3cyclictest0-21swapper/011:05:050
184587099641,32cyclictest0-21swapper/008:55:250
184587099641,32cyclictest0-21swapper/008:55:250
184587099631,4cyclictest0-21swapper/009:50:000
184587099631,3cyclictest0-21swapper/008:30:220
184587099631,3cyclictest0-21swapper/008:20:280
184587099631,38cyclictest1849165-21sshd07:25:260
184587099622,4cyclictest1872447-21sort09:45:010
184587099621,56cyclictest1848546-21grep07:20:280
184587099621,4cyclictest1866332-21mailstats09:05:270
184587099621,3cyclictest1902409-21ls12:40:010
184587099621,3cyclictest1902409-21ls12:40:010
184587099621,3cyclictest1886165-21apt-get11:05:010
1845872996119,34cyclictest14-21rcu_preempt08:55:251
1845872996119,34cyclictest14-21rcu_preempt08:55:241
184587099611,5cyclictest1891313-21latency_hist11:35:010
184587099611,3cyclictest1865001-21apt09:00:120
1845870996024,5cyclictest0-21swapper/011:35:170
184587099601,3cyclictest0-21swapper/012:20:150
184587099601,3cyclictest0-21swapper/012:00:240
1845870995917,5cyclictest0-21swapper/012:35:010
184587099591,4cyclictest0-21swapper/010:05:160
184587099591,3cyclictest0-21swapper/010:55:150
184587099591,3cyclictest0-21swapper/010:55:150
1845870995829,4cyclictest0-21swapper/007:45:160
1845870995829,4cyclictest0-21swapper/007:45:150
184587099581,4cyclictest1892574-21fschecks_time11:40:200
184587099581,4cyclictest1877510-21users10:10:290
184587099581,4cyclictest0-21swapper/009:10:200
184587099581,4cyclictest0-21swapper/009:10:200
184587099581,4cyclictest0-21swapper/008:15:160
184587099581,3cyclictest1879500-21df10:25:180
184587099581,3cyclictest0-21swapper/012:25:140
184587099581,3cyclictest0-21swapper/011:25:240
184587099571,3cyclictest0-21swapper/012:05:220
184587099571,3cyclictest0-21swapper/011:10:200
184587099571,3cyclictest0-21swapper/010:45:180
184587099571,3cyclictest0-21swapper/009:25:240
184587099571,31cyclictest1854342-21tail07:55:260
1845870995621,7cyclictest0-21swapper/009:15:290
184587099561,3cyclictest0-21swapper/010:50:220
184587099561,3cyclictest0-21swapper/010:00:140
184587099551,4cyclictest0-21swapper/012:15:180
184587099551,4cyclictest0-21swapper/010:20:200
1845870995430,4cyclictest0-21swapper/007:35:260
184587099541,3cyclictest0-21swapper/008:35:180
1845874995345,4cyclictest1899008-21munin-plugin-st12:20:002
184587299539,25cyclictest22-21rcuc/112:00:011
184587099532,30cyclictest0-21swapper/009:20:130
184587299525,28cyclictest24-21ksoftirqd/112:00:001
1845872995240,8cyclictest0-21swapper/109:00:291
1845872995139,8cyclictest0-21swapper/108:20:001
1845874994923,15cyclictest311ktimers/210:30:022
1845874994921,16cyclictest311ktimers/208:55:132
1845874994921,16cyclictest311ktimers/208:55:132
1845874994917,17cyclictest30-21rcuc/212:15:022
1845872994935,9cyclictest0-21swapper/108:10:301
1845872994834,9cyclictest0-21swapper/111:30:291
1845872994831,11cyclictest0-21swapper/110:50:291
1845872994823,8cyclictest1888997-21/usr/sbin/munin11:20:201
184587299481,16cyclictest0-21swapper/110:30:011
1845870994717,8cyclictest0-21swapper/007:10:020
1845874994627,15cyclictest311ktimers/210:25:122
1845872994630,9cyclictest0-21swapper/112:30:281
1845872994627,12cyclictest0-21swapper/111:45:331
184587499457,17cyclictest1881759-21apt-get10:40:022
1845874994532,9cyclictest1858024-21sh08:20:002
1845874994530,11cyclictest311ktimers/211:25:122
1845874994526,14cyclictest311ktimers/207:30:122
1845874994526,14cyclictest311ktimers/207:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional