You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-18 - 14:09

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 #2, slot #7

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 rack2slot7s.osadl.org (updated Sat Apr 18, 2026 12:43:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1926704996962,5cyclictest2105108-21awk12:10:330
1926706995949,7cyclictest2041268-21head10:45:502
192670699563,45cyclictest2004595-21ssh10:00:422
1926706995545,5cyclictest1962738-21diskmemload11:40:012
1926706995545,5cyclictest1962738-21diskmemload11:40:012
1926706995542,8cyclictest0-21swapper/211:20:382
192670699476,32cyclictest2097669-21ssh12:00:422
1926704994741,4cyclictest2007372-21ssh10:05:010
1926704994638,5cyclictest2096388-21basename12:00:010
1926706994436,5cyclictest2096355-21sh12:00:012
1926706994435,4cyclictest0-21swapper/210:05:372
1926705994434,5cyclictest0-21swapper/110:30:411
1926704994437,4cyclictest2100296-21ls12:05:010
1926704994433,8cyclictest1972694-21unixbench-2d09:20:550
1926706994334,6cyclictest2059163-21latency_hist11:10:022
1926706994334,6cyclictest1-21systemd11:05:022
1926705994331,8cyclictest261-21systemd-journal11:30:111
1926705994330,6cyclictest0-21swapper/109:45:491
192670599432,31cyclictest2109402-21ssh12:15:391
192670599432,31cyclictest2109402-21ssh12:15:391
1926704994336,4cyclictest2028073-21aten_r2power_vo10:30:290
1926704994335,5cyclictest2124206-21latency_hist12:35:020
1926704994335,5cyclictest1128531-21cups-browsed11:12:240
1926706994234,5cyclictest2128113-21munin-plugin-st12:40:012
1926706994234,5cyclictest1-21systemd11:50:012
1926706994232,4cyclictest0-21swapper/210:30:452
1926705994234,4cyclictest1958243-21kworker/u8:12-nfsiod12:15:011
1926705994233,5cyclictest1929743-21latency_hist07:20:021
1926705994228,10cyclictest1128531-21cups-browsed12:25:021
192670499423,34cyclictest2079156-21ssh11:35:380
192670499423,34cyclictest2079156-21ssh11:35:380
1926706994134,3cyclictest0-21swapper/210:15:402
1926706994133,4cyclictest1958243-21kworker/u8:12-nfsiod10:00:002
1926706994132,6cyclictest2066807-21ssh11:20:012
1926705994130,7cyclictest421-21dbus-daemon09:15:011
1926704994128,10cyclictest2112241-21wc12:20:020
1926704994128,10cyclictest2112241-21wc12:20:020
1926704994127,10cyclictest12350irq/32-eth011:20:380
1926704994118,20cyclictest2032719-21sh10:35:420
1926704994118,20cyclictest2032719-21sh10:35:420
1926706994033,5cyclictest1926703-21cyclictest09:20:552
1926706994033,4cyclictest2039448-21munin-plugin-st10:45:002
1926706994033,3cyclictest0-21swapper/210:15:012
1926706994031,7cyclictest1926709-21systemd-run07:10:022
1926706994031,6cyclictest1987056-21idleruntime-cro09:40:012
1926706994031,6cyclictest1951260-21fschecks_count08:30:332
1926705994032,3cyclictest0-21swapper/112:05:011
1926705994030,6cyclictest1950757-21systemd-run08:30:011
1926704994035,3cyclictest2111753-21kworker/u8:0+rpciod12:25:010
1926706993930,5cyclictest1970909-21cron09:20:012
192670699392,31cyclictest2020754-21rm10:20:432
192670599399,5cyclictest28-21ksoftirqd/111:45:401
1926705993930,6cyclictest421-21dbus-daemon11:40:021
1926705993930,6cyclictest421-21dbus-daemon11:40:021
1926705993930,6cyclictest2070611-21cron11:25:011
1926705993930,5cyclictest0-21swapper/111:10:451
1926704993930,6cyclictest1128531-21cups-browsed12:05:340
1926705993831,4cyclictest1987855-21fschecks_count09:40:311
1926705993831,3cyclictest0-21swapper/110:15:401
1926705993829,6cyclictest516-21in:imuxsock10:55:011
1926705993828,6cyclictest2036225-21fschecks_time10:40:301
1926705993828,6cyclictest0-21swapper/109:55:321
1926705993827,6cyclictest2040630-21ntp_kernel_pll_10:45:371
1926705993825,9cyclictest2063987-21needreboot11:15:361
1926704993812,21cyclictest2016767-21ssh10:15:450
192670699374,26cyclictest2060253-21ssh11:10:402
1926706993731,3cyclictest0-21swapper/212:15:292
1926706993731,3cyclictest0-21swapper/212:15:292
1926706993728,6cyclictest421-21dbus-daemon12:35:012
192670599373,28cyclictest1984396-21ssh09:35:461
1926705993729,5cyclictest2021299-21unixbench_singl10:20:521
1926705993729,5cyclictest1932697-21munin-run07:30:011
1926705993728,4cyclictest0-21swapper/112:30:381
1926705993726,7cyclictest1128531-21cups-browsed09:26:221
1926705993724,9cyclictest2007806-21aten_r2power_cu10:05:261
192670699362,28cyclictest2032624-21ssh10:35:392
192670699362,28cyclictest2032624-21ssh10:35:392
1926705993622,10cyclictest1955911-21latency08:45:361
1926705993613,5cyclictest28-21ksoftirqd/109:20:471
1926704993632,2cyclictest0-21swapper/009:20:010
1926704993629,3cyclictest0-21swapper/009:55:430
1926704993628,5cyclictest1128531-21cups-browsed10:12:240
1926706993527,5cyclictest1963391-21aten_r2power_vo09:10:302
1926706993526,6cyclictest1946251-21true08:15:012
1926706993526,5cyclictest1051-21mta-sts-daemon10:55:312
1926705993527,5cyclictest1968050-21ssh09:15:401
1926705993527,5cyclictest0-21swapper/111:45:011
192670599352,25cyclictest1980137-21ssh09:30:381
1926704993529,4cyclictest1996070-21/usr/sbin/munin09:50:350
1926704993529,4cyclictest1996070-21/usr/sbin/munin09:50:350
1926704993528,5cyclictest1992979-21unixbench-2d09:46:000
1926704993527,5cyclictest2045184-21unixbench_multi10:50:500
1926704993526,7cyclictest2082630-21needreboot11:40:350
1926704993525,8cyclictest2040924-21mailstats10:45:460
192670699347,20cyclictest2075562-21ssh11:30:382
1926706993427,3cyclictest0-21swapper/212:10:442
1926706993426,5cyclictest1947737-21munin-run08:20:012
192670599344,22cyclictest2090081-21ssh11:50:421
1926705993426,5cyclictest1940227-21cron07:55:001
1926705993426,5cyclictest1914062-21kworker/u8:14+xprtiod07:25:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional