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2026-06-03 - 19:57

OSADL QA Farm on Real-time of Mainline Linux

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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 
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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 all highest latencies:
System rackfslot4s.osadl.org (updated Wed Jun 03, 2026 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
576921360,3sleep05770-21seq10:25:230
1177921240,2chrt11778-21grep09:45:350
608421220,2chrt6085-21rm09:36:480
557521200,2sleep05578-21latency_hist10:25:040
279721190,2sleep02796-21seq11:09:450
2763621190,2chrt27637-21aten2.4_rfpower08:30:240
2126921190,2chrt21268-21seq09:11:360
67521180,2chrt676-21seq10:17:040
3113421160,4chrt31133-21ssh11:51:480
2971921160,2chrt29720-21runrttasks09:23:560
2183121160,3chrt21833-21sleep12:26:100
3067221150,3chrt30673-21runrttasks10:13:310
2660321150,1sleep026604-21seq09:19:320
607421130,2chrt6076-21chrt11:14:410
2553721130,3chrt25540-21aten2.4_rfpower07:35:250
2365221110,2chrt23651-21seq08:23:220
1893321110,1sleep018937-21seq11:33:170
156221100,2chrt1563-21sh08:40:190
617421070,2chrt6172-21ls08:46:290
1211321060,2sleep012114-21seq12:11:270
2594721030,2sleep025945-21python308:26:270
1351721010,2sleep013518-21seq08:06:420
158852900,2sleep015886-21seq11:28:540
179202890,2sleep017921-21chrt12:20:430
226632880,2sleep022666-21cut07:30:340
50002840,1sleep04998-21irqrtprio12:01:030
318042840,1sleep031805-21ld09:26:410
162652840,2sleep016266-21chrt09:51:490
292732810,2sleep029275-21cut07:40:450
184412770,1sleep018442-21chrt10:44:120
79542758,54sleep08037-21tr07:06:000
146392710,2sleep014637-21interrupts09:00:430
190082700,1sleep019009-21chrt10:45:170
122702690,2sleep012272-21seq11:23:330
232092660,1sleep023211-21mailstats10:02:140
162672660,2sleep016268-21basename07:20:250
233472640,1sleep023348-21aten2.4-expect11:40:320
120642580,2sleep012065-21chrt10:34:510
326652550,2sleep032663-21python308:37:190
197252540,2sleep019726-21seq09:09:220
278422530,2sleep027843-21seq10:57:540
31362520,2sleep03137-21chrt07:50:430
9704905019,22cyclictest0-21swapper11:04:380
9704905016,23cyclictest0-21swapper12:19:240
92572500,3chrt9254-21/usr/sbin/munin08:00:390
9704904819,21cyclictest0-21swapper12:07:360
9704904819,21cyclictest0-21swapper09:57:350
9704904817,22cyclictest0-21swapper12:34:000
9704904816,22cyclictest0-21swapper12:38:460
30082480,3chrt3006-21/usr/sbin/munin09:32:170
147722480,1sleep014778-21ssh10:38:250
9704904718,19cyclictest15801-21kernelversion08:10:470
9704904717,20cyclictest0-21swapper10:52:460
9704904716,21cyclictest0-21swapper09:43:590
9704904615,13cyclictest29740-21cut11:50:070
25052460,3sleep02491-21ssh11:57:080
187202460,2chrt18712-21aten2.4-expect08:16:170
970490446,10cyclictest27221-21users10:08:120
970490444,11cyclictest11107-21ntpq07:11:140
9704904415,11cyclictest20205-21runrttasks07:25:520
9704904412,23cyclictest32142-21sh07:46:070
9704904412,22cyclictest7315-21runrttasks11:18:260
970490434,13cyclictest21851-21ssh11:37:230
9704904315,11cyclictest8998-21seq08:51:150
970490425,11cyclictest11914-21ntpq08:55:580
970490415,25cyclictest13276-21df_inode07:15:300
9704904116,15cyclictest6072-21hddtemp_smartct07:55:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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