You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-30 - 10:20

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 #b, 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.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7s.osadl.org (updated Thu Apr 30, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198332490916,4881sleep13894-21kworker/1:020:33:031
198332490916,4881sleep13894-21kworker/1:020:33:031
805242577,4239sleep324904-21kworker/3:123:28:013
268532107925,1012sleep326905-21unin-run23:00:263
9305273514,703sleep29309-21/usr/sbin/munin20:00:572
9305273514,703sleep29309-21/usr/sbin/munin20:00:572
3184226816,663sleep331882-21ntpq21:10:493
8067242144,330sleep32-21kthreadd21:40:263
25239241612,310sleep325318-21latency_hist19:10:293
25239241612,310sleep325318-21latency_hist19:10:293
4107241313,385sleep14124-21/usr/sbin/munin23:45:351
27543236457,281sleep326866-21kworker/u8:423:05:273
1918523407,321sleep319229-21ntpq20:31:073
1918523407,321sleep319229-21ntpq20:31:073
13522231914,287sleep013592-21/usr/sbin/munin00:25:570
31264231776,92sleep30-21swapper/323:20:253
1180230019,264sleep01268-21/usr/sbin/munin21:15:550
29679227291,86sleep30-21swapper/321:05:283
31174226816,237sleep131224-21unin-run21:10:271
7890225814,229sleep27897-21awk19:56:082
7890225814,229sleep27897-21awk19:56:082
26527225146,187sleep326669-21unixbench_multi19:11:023
26527225146,187sleep326669-21unixbench_multi19:11:023
21199225157,93sleep321220-21kernelversion22:35:473
21645225072,84sleep30-21swapper/320:40:283
15703224533,197sleep315787-21latency20:20:493
29093222036,119sleep329237-21latency_hist23:10:283
881922038,162sleep38834-21awk21:40:543
13676220310,182sleep013441-21snmpd22:00:580
12674220278,79sleep30-21swapper/321:55:573
1005422029,132sleep310089-21awk00:10:253
1486721959,38sleep30-21swapper/300:30:283
1486721959,38sleep30-21swapper/300:30:283
17477219140,114sleep31-21systemd20:25:543
31908218914,159sleep031813-21latency_hist19:30:290
783721787,18sleep00-21swapper/019:56:060
783721787,18sleep00-21swapper/019:56:060
15511217719,138sleep215709-21apt-key00:35:282
15511217719,138sleep215709-21apt-key00:35:282
6729217276,57sleep30-21swapper/323:55:513
149121718,130sleep31502-21vmstat21:15:583
7798216836,95sleep37834-21ntpq19:56:053
7798216836,95sleep37834-21ntpq19:56:053
16296216811,140sleep30-21swapper/322:15:273
14135215548,91sleep314220-21timerandwakeup00:26:123
12602215416,21sleep20-21swapper/221:55:562
1304721499,125sleep313119-21apt-config00:25:273
29688214819,33sleep329708-21modprobe23:15:253
29688214819,33sleep329708-21modprobe23:15:253
26563214711,120sleep326663-21latency_hist20:55:303
12379214768,37sleep30-21swapper/320:10:433
194721449,35sleep30-21swapper/323:35:403
194721449,35sleep30-21swapper/323:35:403
10460214411,116sleep310502-21true20:05:263
10460214411,116sleep310502-21true20:05:263
3237721395,11sleep10-21swapper/121:10:591
1993821395,12sleep30-21swapper/322:29:533
7454213710,115sleep013441-21snmpd23:58:150
5501213528,17sleep30-21swapper/321:30:483
5191213333,62sleep35205-21vmstat19:46:033
10106213218,96sleep10-21swapper/100:10:271
2498213124,86sleep30-21swapper/321:20:513
23430213112,58sleep30-21swapper/320:45:413
156921309,39sleep31613-21ntpq19:35:583
156921309,39sleep31613-21ntpq19:35:583
23327212713,96sleep323346-21apt-get22:45:363
23192212314,95sleep223159-21latency_hist20:45:282
20899212311,98sleep120988-21mailstats20:36:381
9231211913,22sleep00-21swapper/021:40:590
29378211027,46sleep329414-21ntpq19:20:593
16161211022,66sleep016298-21unixbench_singl20:20:580
29444210917,19sleep20-21swapper/219:21:022
28609210912,26sleep128632-21irqstats21:00:501
2514421095,11sleep30-21swapper/322:53:523
12388210816,70sleep012481-21fschecks_time20:10:440
22155210710,81sleep322223-21ls20:40:483
4815210510,58sleep34958-21grep23:45:583
21056210517,63sleep120909-21/usr/sbin/munin22:35:451
10703210427,60sleep30-21swapper/300:15:263
31967210312,75sleep132111-21cat23:25:281
31967210312,75sleep132111-21cat23:25:281
14518210214,19sleep30-21swapper/322:05:463
331621019,51sleep32716-21/usr/sbin/munin19:40:593
31430210021,43sleep30-21swapper/319:26:043
23998210013,71sleep224065-21ls20:45:562
1191421009,56sleep311929-21awk00:15:583
1167621005,11sleep30-21swapper/321:53:513
610929923,38sleep30-21swapper/323:55:273
2049729915,51sleep30-21swapper/322:33:533
188429921,52sleep22021-21unixbench_multi19:36:052
188429921,52sleep22021-21unixbench_multi19:36:052
2841029825,40sleep313441-21snmpd19:16:553
2841029825,40sleep313441-21snmpd19:16:553
213029811,74sleep12191-21cat23:35:461
213029811,74sleep12191-21cat23:35:461
1848329813,65sleep118539-21latency_hist22:25:271
876029716,62sleep28277-21apt-get00:05:362
49162975,36sleep30-21swapper/321:30:043
36302960,10sleep20-21swapper/221:25:292
309882965,35sleep30-21swapper/321:08:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional