You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-03 - 15:26

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 Sun May 03, 2026 12:43:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2150276999989,7cyclictest421-21dbus-daemon10:19:081
2150275997558,14cyclictest2238812-40mandb10:18:090
2150277995849,4cyclictest0-21swapper/210:19:082
2150276995244,5cyclictest2181810-21systemd-run08:55:011
2150276995244,5cyclictest2181810-21systemd-run08:55:011
2150275995017,27cyclictest2336416-21ssh12:20:530
2150276994934,10cyclictest261-21systemd-journal09:57:381
2150276994934,10cyclictest261-21systemd-journal09:57:381
2150275994930,12cyclictest0-21swapper/011:45:510
215027799484,34cyclictest2276649-21ssh11:05:492
2150277994838,6cyclictest1-21systemd07:50:012
2150277994838,6cyclictest1-21systemd07:50:012
2150276994832,13cyclictest1339207-21cups-browsed10:25:021
2150275994839,5cyclictest2279283-21cron11:10:000
215027599481,37cyclictest2170227-21awk08:15:380
2150277994738,6cyclictest2303190-21unin-run11:40:022
2150277994738,6cyclictest2303190-21unin-run11:40:022
2150277994738,5cyclictest2214125-21timerwakeupswit09:45:572
2150276994738,4cyclictest0-21swapper/107:25:481
2150277994536,6cyclictest421-21dbus-daemon08:10:352
2150277994536,6cyclictest2232005-21unin-run10:10:012
215027799453,34cyclictest2296586-21ssh11:30:522
2150276994435,6cyclictest2323026-21grep12:05:011
2150276994433,7cyclictest2268296-21if_wlan010:55:411
2150276994433,7cyclictest2268296-21if_wlan010:55:411
2150275994436,5cyclictest2184833-21systemd-run09:05:010
2150275994436,5cyclictest2184833-21systemd-run09:05:010
2150275994435,4cyclictest0-21swapper/009:10:150
2150275994424,12cyclictest2249017-21ssh10:30:500
2150277994335,4cyclictest2212254-21kworker/u8:11-xprtiod11:45:512
2150276994335,5cyclictest2251631-21idleruntime-cro10:35:011
215027599433,32cyclictest2199249-21ssh09:25:510
2150275994320,10cyclictest171rcu_preempt12:37:340
2150277994235,2cyclictest0-21swapper/207:20:442
2150277994234,4cyclictest0-21swapper/212:05:442
2150277994233,6cyclictest516-21in:imuxsock09:55:012
2150277994228,8cyclictest2206364-21sh09:35:482
2150277994133,5cyclictest2224082-21cron10:00:012
2150277994133,5cyclictest2224082-21cron10:00:012
2150277994031,6cyclictest2243671-21cron10:25:002
2150276994031,6cyclictest421-21dbus-daemon10:55:011
2150276994028,9cyclictest695-21cron08:00:001
2150277993930,6cyclictest0-21swapper/211:20:012
2150276993931,5cyclictest2335045-21latency_hist12:20:021
2150276993931,5cyclictest2319025-21cut12:00:001
2150276993931,5cyclictest2229679-21grep10:05:581
2150276993929,6cyclictest1-21systemd11:45:011
215027599399,17cyclictest12350irq/32-eth011:30:520
2150275993932,3cyclictest0-21swapper/011:50:520
2150277993831,4cyclictest1055-21mta-sts-daemon10:30:082
2150277993829,5cyclictest2283213-21cron11:15:002
2150277993829,5cyclictest2150792-21cut07:10:392
2150276993830,5cyclictest2208991-21latency_hist09:40:031
2150276993828,7cyclictest2202696-21needreboot09:30:441
215027599387,26cyclictest2229316-21ssh10:05:480
2150275993826,9cyclictest2292973-21timerwakeupswit11:25:570
2150275993817,3cyclictest171rcu_preempt10:25:530
215027599380,9cyclictest14-21ksoftirqd/012:10:470
215027599380,9cyclictest14-21ksoftirqd/012:10:470
2150277993731,3cyclictest0-21swapper/212:20:472
2150277993730,4cyclictest2199816-21unixbench_singl09:26:012
2150277993730,3cyclictest0-21swapper/210:25:482
2150277993728,6cyclictest1339203-21cupsd12:04:372
2150277993728,6cyclictest1054-21mta-sts-daemon09:14:162
2150277993726,7cyclictest421-21dbus-daemon08:40:502
2150276993731,3cyclictest0-21swapper/111:40:011
2150276993731,3cyclictest0-21swapper/111:40:011
2150276993730,4cyclictest2291185-21cron11:25:011
2150276993730,3cyclictest0-21swapper/111:05:411
2150276993722,9cyclictest2252895-21sh10:35:481
2150275993727,6cyclictest261-21systemd-journal09:40:010
2150275993720,3cyclictest0-21swapper/011:55:550
2150275993718,11cyclictest171rcu_preempt10:59:510
2150275993718,11cyclictest171rcu_preempt10:59:510
2150275993714,20cyclictest2284680-21ssh11:15:530
215027599371,15cyclictest2300469-21modprobe11:35:490
215027599371,15cyclictest2300469-21modprobe11:35:490
215027599370,12cyclictest14-21ksoftirqd/007:25:510
2150276993630,3cyclictest0-21swapper/107:20:011
2150276993628,5cyclictest0-21swapper/112:20:561
2150276993626,7cyclictest2167279-21fschecks_count08:05:401
2150276993626,6cyclictest420-21avahi-daemon11:45:441
2150276993626,5cyclictest2311581-21/usr/sbin/munin11:50:401
215027699362,27cyclictest2280562-21ssh11:10:481
215027599363,28cyclictest2221608-21ssh09:55:540
215027599363,28cyclictest2221608-21ssh09:55:540
2150275993622,9cyclictest12450irq/33-eth011:10:490
2150275993621,13cyclictest2185904-21mailstats09:05:570
2150275993619,11cyclictest151ktimers/008:45:500
215027599361,27cyclictest2260946-21ssh10:45:540
215027799353,24cyclictest2260832-21ssh10:45:492
2150277993528,4cyclictest2347682-21cpuspeed12:35:382
2150277993528,4cyclictest2171300-21munin-run08:20:012
2150277993528,3cyclictest0-21swapper/211:50:412
2150277993527,5cyclictest2346910-21munin-plugin-st12:35:012
2150277993526,5cyclictest2159252-21grep07:40:002
2150276993530,2cyclictest0-21swapper/108:40:011
2150276993529,2cyclictest0-21swapper/110:15:011
2150276993527,5cyclictest2327002-21munin-run12:10:011
2150276993527,5cyclictest2188112-21timerwakeupswit09:11:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional