You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-28 - 16:23

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 #f, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackfslot4s.osadl.org (updated Fri Nov 28, 2025 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
784521230,1sleep07844-21gcc21:06:000
1699721210,2chrt16994-21ntpq00:17:110
354321200,2chrt3534-21ntpq21:56:430
1296321200,2chrt12960-21ssh22:14:200
1316621190,2chrt13167-21/usr/sbin/munin21:16:110
3212421180,2chrt32122-21perl20:50:370
1481621160,2chrt14814-21/usr/sbin/munin22:17:060
1614921130,2chrt16148-21/usr/sbin/munin23:17:150
1991121100,2chrt19913-21mailstats00:22:130
1294821090,3chrt12951-21ssh00:10:330
725321050,2chrt7254-21sh22:03:470
2704221050,3chrt27046-21grep19:36:060
2948421040,3chrt29485-21sh19:40:540
2318921030,2chrt23190-21sleep20:32:000
2008421030,2chrt20085-21sleep21:28:580
383221000,2chrt3833-21sleep19:55:110
217762980,2sleep021775-21awk23:27:190
250952870,1sleep025096-21sh23:33:530
238642870,2sleep023865-21ssh21:35:550
1176528110,55sleep011796-21python319:06:010
182632790,2sleep018266-21cut23:21:070
285782750,2sleep028579-21gpgv23:40:140
40332710,2sleep04031-21if_can022:55:580
293282700,2sleep029329-21sh21:45:350
220322680,2sleep022033-21/usr/sbin/munin21:32:060
151732650,2sleep015175-21awk21:20:340
26972630,3sleep02695-21ssh22:53:140
275692593,9sleep027571-21irqstats00:36:070
291532550,3sleep029148-21sshd22:42:360
253152550,2chrt25313-21/usr/sbin/munin22:36:030
80352530,2sleep08038-21cut00:01:100
172312533,7sleep017337-21irqstats20:20:450
248212523,9sleep024818-21irqstats00:31:110
149472513,6sleep014954-21sleep20:15:540
327622490,3sleep032760-21ssh22:49:280
12964904818,23cyclictest0-21swapper23:04:310
12964904718,22cyclictest0-21swapper00:27:510
12964904716,23cyclictest0-21swapper22:33:370
12964904618,21cyclictest0-21swapper23:14:230
12964904616,23cyclictest0-21swapper23:07:380
1296490455,11cyclictest846-21ntpq21:51:580
83252440,2sleep08327-21grep22:05:530
1296490446,18cyclictest30166-21ntpq20:45:570
1296490446,10cyclictest5448-21memory23:56:130
12964904417,10cyclictest9194-21diskmemload22:26:190
12964904415,22cyclictest0-21swapper23:53:230
1296490435,10cyclictest24979-21python319:32:140
12964904314,22cyclictest0-21swapper21:13:510
1296490426,17cyclictest9390-21hddtemp_smartct20:05:380
1296490425,17cyclictest17555-21memory22:21:530
1296490425,10cyclictest20982-21df19:25:290
1296490424,9cyclictest26539-21irqstats23:36:050
12964904215,9cyclictest6383-21/usr/sbin/munin20:01:250
12964904215,20cyclictest0-21swapper21:42:540
1296490415,9cyclictest17087-21users19:16:290
1296490414,9cyclictest2818-21ntpq20:56:030
12964904119,13cyclictest0-21swapper19:50:280
12964904118,14cyclictest0-21swapper00:05:080
12964904115,9cyclictest9194-21diskmemload23:45:550
12964904114,9cyclictest20197-21ntpq20:26:140
1296490405,18cyclictest32532-21ntpq19:46:550
1296490404,9cyclictest5447-21ntp_states21:01:150
1296490403,18cyclictest24544-21perl20:35:370
1296490395,27cyclictest14561-21users19:11:280
12964903914,19cyclictest19300-21ntp_states19:21:120
1296490376,24cyclictest27657-21ntpq20:40:580
1296490375,7cyclictest11774-21sshd20:10:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional