You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-06-28 - 21:06

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 highest latencies:
System rackfslot4s.osadl.org (updated Sat Jun 28, 2025 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69521250,2chrt696-21/usr/sbin/munin09:16:040
2370421220,2chrt23697-21ntpq09:56:330
2229821220,2chrt22299-21sleep07:50:580
180421200,2chrt1801-21ntp_states12:11:520
2015221190,2chrt20154-21awk11:46:410
2693421170,3chrt26932-21/usr/sbin/munin08:00:450
1628021160,2chrt16282-21awk11:40:330
1689621120,3chrt16902-21irqrtprio07:40:450
2556421080,2chrt25565-21ld11:56:260
2620421050,2chrt26205-21sh09:02:170
1222621050,2chrt12225-21grep08:35:390
182022860,2sleep018203-21aten2.4_rfpower10:45:350
3167928312,54sleep031683-21ntpq07:05:400
221752820,2chrt22164-21ssh09:54:330
305822810,2sleep030583-21cat09:11:450
23612690,2sleep02363-21grep08:15:500
289862620,2sleep028988-21awk08:05:270
35052600,2sleep03508-21aten2.4_rfpower07:15:250
316042550,1sleep031605-21cat10:11:100
105762523,41sleep010578-21ssh11:30:160
710905120,23cyclictest0-21swapper11:27:420
46512510,1sleep04652-21timerandwakeup09:22:260
294642510,2sleep029466-21sed09:10:070
710905020,23cyclictest0-21swapper12:39:110
710904920,22cyclictest0-21swapper12:18:400
35692490,2chrt3543-21ntpq11:16:520
293172496,35sleep029300-21ssh10:06:340
710904816,25cyclictest0-21swapper12:02:510
248792484,36sleep024876-21ntpq07:56:030
710904719,13cyclictest0-21swapper11:54:560
710904718,22cyclictest0-21swapper12:28:500
710904718,22cyclictest0-21swapper11:04:440
710904717,22cyclictest0-21swapper12:34:270
710904714,23cyclictest0-21swapper11:20:070
710904713,16cyclictest0-21swapper11:10:120
327572470,2chrt32755-21mailstats08:11:260
710904618,21cyclictest0-21swapper10:39:370
710904618,21cyclictest0-21swapper09:39:520
710904617,20cyclictest0-21swapper10:53:230
710904616,22cyclictest0-21swapper12:23:590
71090455,29cyclictest13369-21ssh11:35:240
710904517,23cyclictest0-21swapper07:35:060
710904517,21cyclictest0-21swapper10:27:590
710904515,23cyclictest0-21swapper10:23:460
710904515,22cyclictest0-21swapper10:58:560
710904515,21cyclictest0-21swapper12:09:160
710904514,23cyclictest0-21swapper09:25:100
191322450,2chrt19133-21sh09:48:460
71090445,10cyclictest10556-21ntpq08:31:530
710904416,22cyclictest0-21swapper10:03:440
710904416,22cyclictest0-21swapper09:43:380
71090436,29cyclictest9479-21irqstats09:31:160
71090436,10cyclictest7717-21ntp_states08:26:130
710904321,13cyclictest0-21swapper07:30:130
710904314,21cyclictest0-21swapper10:34:050
71090425,27cyclictest4540-21hddtemp_smartct08:20:420
710904219,16cyclictest0-21swapper10:17:500
710904216,9cyclictest15326-21ssh10:40:190
710904213,22cyclictest0-21swapper11:08:350
71090415,9cyclictest6253-21diskstats07:20:350
71090415,9cyclictest22282-21diskstats08:55:320
71090415,28cyclictest9778-21memory07:26:390
71090406,27cyclictest17205-21df08:45:290
71090394,17cyclictest15372-21ntpq08:40:590
71090384,17cyclictest2058-21ntpq07:11:250
710903815,18cyclictest21001-21sshd07:49:280
710903813,17cyclictest20296-21sh08:50:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional