You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-11-25 - 05:07

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 50 highest latencies:
System rackbslot7s.osadl.org (updated Mon Nov 25, 2024 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12602254118,502sleep112619-21cron23:02:261
14907234612,319sleep014911-21ntpq23:07:580
182642298117,87sleep218294-21latency_hist21:37:252
2560022976,243sleep2370-21snmpd23:46:102
237702276100,56sleep20-21swapper/220:12:282
1330022309,206sleep213347-21ntpq19:37:532
25675222511,193sleep225730-21fschecks_count20:17:452
18296222238,163sleep218445-21grep23:17:572
4472221420,162sleep20-21swapper/219:12:302
20383221415,129sleep220400-21modprobe23:27:252
517722069,160sleep25195-21fschecks_count19:12:462
22147219988,62sleep222185-21processes21:47:592
30720219648,98sleep230769-21modprobe22:17:262
2753421969,17sleep20-21swapper/223:52:402
30556218310,81sleep20-21swapper/220:32:472
29481217816,59sleep20-21swapper/223:57:492
6751217426,136sleep21-21systemd20:58:062
14202217412,60sleep20-21swapper/223:07:272
6727216740,114sleep26752-21fschecks_count22:43:132
787121657,147sleep2370-21snmpd19:21:382
268621655,11sleep20-21swapper/222:29:082
17257216423,120sleep317287-21sh23:17:253
933021615,29sleep20-21swapper/222:51:212
11972215915,127sleep311841-21latency_hist21:17:283
7782215621,117sleep37827-21/usr/sbin/munin21:02:513
25065215658,53sleep225246-1kworker/2:1H21:57:482
10905214918,116sleep010940-21ntp_kernel_err21:12:490
22361214716,114sleep122514-21awk21:48:021
7498214678,17sleep20-21swapper/221:02:462
15570214513,23sleep20-21swapper/221:27:492
14653214241,43sleep20-21swapper/219:42:372
31037214117,95sleep20-21swapper/200:02:492
28517214019,99sleep20-21swapper/222:08:012
12488213810,109sleep20-21swapper/221:17:522
42621369,27sleep20-21swapper/220:37:592
26716213428,47sleep20-21swapper/223:47:562
15991213333,88sleep216017-21cpu23:12:402
14155213118,98sleep3227-21systemd-journal19:42:263
14680213059,49sleep20-21swapper/223:07:522
29196212763,15sleep20-21swapper/220:27:582
8623212620,21sleep20-21swapper/219:22:512
3177821269,100sleep231927-21grep22:17:582
1903921259,97sleep21-21systemd19:57:272
21975212412,99sleep321947-21latency_hist23:32:273
15439212416,91sleep115447-21acpi21:27:391
27257212318,55sleep20-21swapper/222:03:012
27140212256,16sleep20-21swapper/220:22:412
4933212030,41sleep24945-21open_files00:22:522
3273212010,27sleep23350-21switchtime20:47:562
3692211640,57sleep20-21swapper/222:32:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional