You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-25 - 13:15

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 #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot1s.osadl.org (updated Mon May 25, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2902621170,2chrt29024-21df19:27:460
2902621170,2chrt29024-21df19:27:460
378721010,2sleep00-21swapper/021:12:510
378721010,2sleep00-21swapper/021:12:510
298772990,3sleep20-21swapper/222:22:482
298772990,3sleep20-21swapper/222:22:482
298772990,3sleep20-21swapper/222:22:482
237122970,6sleep0171ktimers/020:37:570
237122970,6sleep0171ktimers/020:37:570
207562900,3sleep023413-21cyclictest21:57:490
207562900,3sleep023413-21cyclictest21:57:490
288832850,3sleep00-21swapper/023:47:360
288832850,3sleep00-21swapper/023:47:360
190522730,2chrt19048-21grep23:17:570
29212620,2sleep20-21swapper/200:02:532
29212620,2sleep20-21swapper/200:02:532
217782550,2chrt21779-21fschecks_count23:27:471
217782550,2chrt21779-21fschecks_count23:27:471
2341499532,30cyclictest2576-21/usr/sbin/munin00:02:490
2341499532,30cyclictest2576-21/usr/sbin/munin00:02:490
92942520,3chrt0-21swapper/300:19:353
92942520,3chrt0-21swapper/300:19:353
92942520,3chrt0-21swapper/300:19:353
81132520,2sleep08277-21timerwakeupswit21:22:570
81132520,2sleep08277-21timerwakeupswit21:22:570
253352520,3chrt0-21swapper/220:42:542
253352520,3chrt0-21swapper/220:42:542
253352520,3chrt0-21swapper/220:42:542
323092500,3chrt0-21swapper/221:02:482
323092500,3chrt0-21swapper/221:02:482
282162490,3chrt0-21swapper/320:52:403
282162490,3chrt0-21swapper/320:52:403
137662490,3sleep20-21swapper/221:37:572
137662490,3sleep20-21swapper/221:37:572
137662490,3sleep20-21swapper/221:37:572
102832480,2sleep20-21swapper/220:02:502
102832480,2sleep20-21swapper/220:02:502
21782470,3sleep30-21swapper/300:02:423
21782470,3sleep30-21swapper/300:02:423
23414994638,5cyclictest0-21swapper/000:02:400
23414994638,5cyclictest0-21swapper/000:02:400
49392410,3sleep30-21swapper/319:47:563
49392410,3sleep30-21swapper/319:47:563
282352410,2chrt28236-21cut20:52:410
282352410,2chrt28236-21cut20:52:410
93532400,2sleep20-21swapper/221:27:482
23414993930,7cyclictest10637-21threads20:02:560
23414993930,7cyclictest10637-21threads20:02:560
226022380,3sleep20-21swapper/223:27:562
226022380,3sleep20-21swapper/223:27:562
209562380,4sleep30-21swapper/320:32:463
209562380,4sleep30-21swapper/320:32:463
25232370,2sleep1281ktimers/121:07:571
25232370,2sleep1281ktimers/121:07:571
23415993730,5cyclictest32526-21threads22:27:561
23415993730,5cyclictest32526-21threads22:27:561
23415993730,5cyclictest32526-21threads22:27:561
23415993631,3cyclictest23809-21cut23:32:501
23415993631,3cyclictest23809-21cut23:32:501
23415993631,3cyclictest23809-21cut23:32:501
119702360,1sleep012155-21unixbench_singl21:32:580
119702360,1sleep012155-21unixbench_singl21:32:580
119702360,1sleep012155-21unixbench_singl21:32:580
56372350,1sleep00-21swapper/019:52:350
56372350,1sleep00-21swapper/019:52:350
23414993428,5cyclictest9559-21latency_hist00:22:350
23414993428,5cyclictest9559-21latency_hist00:22:350
23414993428,5cyclictest9559-21latency_hist00:22:350
2341599336,12cyclictest9902-21taskset22:54:541
2341599336,12cyclictest9902-21taskset22:54:541
2341599332,26cyclictest2936-21/usr/sbin/munin00:02:541
2341599332,26cyclictest2936-21/usr/sbin/munin00:02:541
23414993327,4cyclictest17607-21cron23:17:350
23414993327,4cyclictest17607-21cron23:17:350
168192330,2sleep30-21swapper/323:12:543
168192330,2sleep30-21swapper/323:12:543
282152320,2sleep20-21swapper/222:17:492
282152320,2sleep20-21swapper/222:17:492
23415993225,5cyclictest13469-21fschecks_count20:12:461
23414993228,3cyclictest23413-21cyclictest00:37:360
23414993224,6cyclictest23413-21cyclictest23:02:510
93532310,2sleep20-21swapper/221:27:492
93532310,2sleep20-21swapper/221:27:492
93532310,2sleep20-21swapper/221:27:492
23415993125,4cyclictest26956-21latency_hist23:42:351
23415993125,4cyclictest26956-21latency_hist23:42:351
23415993125,4cyclictest25624-21threads20:42:571
23415993125,4cyclictest25624-21threads20:42:571
23415993125,4cyclictest25624-21threads20:42:571
23415993124,5cyclictest15371-21needreboot21:42:511
23415993124,5cyclictest15371-21needreboot21:42:511
23414993125,5cyclictest7015-21threads00:12:570
23414993125,5cyclictest7015-21threads00:12:570
23414993125,5cyclictest7015-21threads00:12:570
23414993125,5cyclictest1648-21ntpd22:47:540
23414993125,5cyclictest1648-21ntpd22:47:540
23414993122,7cyclictest2708-21latency_hist22:37:400
23414993122,7cyclictest2708-21latency_hist22:37:400
23415993023,5cyclictest22887-21fschecks_count20:37:481
23415993023,5cyclictest22887-21fschecks_count20:37:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional