You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-29 - 22:16

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 Mon Jun 29, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1614189995546,4cyclictest0-21swapper/211:15:412
1614189995434,17cyclictest1676352-21unixbench_multi09:50:452
161418999522,36cyclictest1758420-21ssh12:05:332
161418799526,36cyclictest151ktimers/011:25:350
1614189995140,6cyclictest1734838-21sshd11:26:222
1614188995042,5cyclictest1674796-21systemd09:50:021
1614189994830,14cyclictest1680971-21systemd-run10:00:012
161418899474,30cyclictest1767609-21ssh12:20:341
1614189994628,15cyclictest421-21dbus-daemon12:20:012
161418899461,7cyclictest171rcu_preempt11:50:371
1614189994526,16cyclictest1714943-21acpi10:55:232
1614189994526,16cyclictest1714943-21acpi10:55:232
1614189994522,19cyclictest1619211-21fschecks_time07:25:242
161418999452,12cyclictest1743180-21ssh11:40:352
161418899452,36cyclictest1715663-21sh10:55:361
161418899452,36cyclictest1715663-21sh10:55:361
1614189994433,6cyclictest1748837-21/usr/sbin/munin11:50:252
1614189994424,17cyclictest1641202-21systemd-run08:40:012
1614189994421,19cyclictest420-21avahi-daemon10:13:182
161418999442,10cyclictest1767678-21ssh12:20:362
1614189994418,22cyclictest0-21swapper/209:40:382
1614189994417,23cyclictest1668630-21latency_hist09:40:012
1614189994415,3cyclictest0-21swapper/210:15:352
1614188994436,5cyclictest1736958-21needreboot11:30:301
1614188994432,8cyclictest1714605-21systemd-run10:55:011
161418999433,9cyclictest1731035-21ntpq11:20:372
1614189994333,6cyclictest1723791-21systemd-run11:10:012
1614189994333,6cyclictest1723791-21systemd-run11:10:012
1614189994332,7cyclictest1659432-21munin-plugin-st09:25:002
1614189994324,15cyclictest421-21dbus-daemon12:11:412
161418999432,14cyclictest1643633-21ntpq08:45:372
161418999431,15cyclictest1637528-21ntpq08:25:312
161418999431,14cyclictest1712710-21ntpq10:50:402
161418899433,33cyclictest1633122-21sshd08:10:401
161418999424,7cyclictest1672711-21ssh09:45:312
161418999424,14cyclictest1703393-21ntpq10:35:342
161418999423,8cyclictest1622577-21ntpq07:35:352
1614189994234,5cyclictest1742092-21munin-run11:40:012
1614189994234,5cyclictest1696261-21cut10:25:012
161418999422,33cyclictest1654376-21ssh09:15:372
1614187994234,5cyclictest1615271-21mailstats07:10:410
1614187994218,15cyclictest12650irq/32-eth011:20:350
161418999413,13cyclictest1776863-21ssh12:35:422
1614189994114,2cyclictest0-21swapper/210:30:012
1614189994113,3cyclictest1642663-21kworker/u8:5+xprtiod08:45:012
161418999411,20cyclictest1660513-21rm09:25:342
161418999411,12cyclictest1616586-21ntpq07:15:352
1614188994135,3cyclictest1751370-21kworker/u8:12-xprtiod12:28:531
1614187994132,6cyclictest1705582-21latency_hist10:40:030
161418999403,17cyclictest1663592-21ssh09:30:392
161418999402,8cyclictest1773697-21ntpq12:30:352
161418999402,13cyclictest1700384-21ssh10:30:352
1614189994017,19cyclictest0-21swapper/212:00:372
1614189994015,2cyclictest0-21swapper/210:00:312
1614189994014,23cyclictest0-21swapper/211:55:402
161418999401,33cyclictest1709624-21ssh10:45:372
1614189994012,2cyclictest0-21swapper/212:25:242
161418999401,13cyclictest1627113-21ntpq07:50:342
161418999401,12cyclictest1628536-21ntpq07:55:352
1614187994018,15cyclictest151ktimers/007:45:330
1614189993915,3cyclictest351ktimers/210:45:022
1614189993914,3cyclictest0-21swapper/211:15:002
1614189993914,3cyclictest0-21swapper/211:15:002
1614189993914,3cyclictest0-21swapper/208:30:412
1614189993914,2cyclictest0-21swapper/210:05:282
1614189993912,3cyclictest0-21swapper/208:10:012
161418999391,14cyclictest1746185-21sh11:45:332
1614189993910,3cyclictest0-21swapper/208:58:022
1614188993934,2cyclictest0-21swapper/108:50:011
1614188993932,4cyclictest1617189-21sendmail07:20:011
1614187993920,12cyclictest12650irq/32-eth011:15:400
161418799391,34cyclictest1691129-21ssh10:15:340
161418999384,6cyclictest420-21avahi-daemon07:40:332
161418999382,8cyclictest1615018-21ntpq07:10:312
161418999382,12cyclictest1634504-21ntpq08:15:322
161418899384,7cyclictest171rcu_preempt09:55:381
1614188993829,5cyclictest1635178-21awk08:20:011
1614188993828,6cyclictest420-21avahi-daemon10:38:501
161418999374,8cyclictest1718663-21ntpq11:00:302
161418999374,8cyclictest1718663-21ntpq11:00:302
161418999373,7cyclictest1649543-21ntpq09:05:332
161418999371,15cyclictest1618144-21ntpq07:20:382
161418999371,15cyclictest1618144-21ntpq07:20:382
161418999371,14cyclictest1651286-21ssh09:10:362
1614189993711,3cyclictest0-21swapper/207:10:022
161418999371,12cyclictest1626359-21latency_hist07:50:032
1614188993729,5cyclictest1693165-21cron10:20:011
1614187993731,4cyclictest1656329-21sendmail09:20:000
1614187993730,4cyclictest1645664-21grep08:55:000
1614187993729,6cyclictest1749905-21ssh11:50:470
1614187993726,6cyclictest12750irq/33-eth011:00:360
1614187993726,6cyclictest12750irq/33-eth011:00:360
1614189993616,18cyclictest0-21swapper/211:30:332
1614189993613,3cyclictest0-21swapper/208:10:462
1614188993628,4cyclictest0-21swapper/112:10:351
1614188993628,4cyclictest0-21swapper/110:00:451
1614188993627,6cyclictest814995-21cups-browsed09:30:561
1614188993627,6cyclictest265-21systemd-journal12:20:011
1614188993627,5cyclictest1730698-21kernelversion11:20:281
1614188993624,8cyclictest1719179-21timerwakeupswit11:00:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional