You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-20 - 19:50

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 #9, 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.
Unexpectedly long latencies may be caused by SMIs
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 highest latencies:
System rack9slot4s (updated Thu Aug 20, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290929912141205,6cyclictest0-21swapper/107:25:061
290929911471123,18cyclictest6422-21copy07:45:381
290919911281104,21cyclictest0-21swapper/007:25:040
281642578531,31sleep10-21swapper/107:20:261
290022514417,30sleep00-21swapper/007:24:400
2493921040,7sleep00-21swapper/008:35:250
29091999875,20cyclictest0-21swapper/007:45:370
16232770,2sleep10-21swapper/111:50:311
314862381,4sleep131565-21df07:30:051
209952381,4sleep121004-21sh12:44:591
2909199379,12cyclictest26068-21netstat11:30:230
29091993712,13cyclictest30853-21runrttasks10:17:160
2909299358,6cyclictest249402sh08:35:261
29092993523,8cyclictest14871-21ls08:10:121
141822351,30sleep014186-21cron09:34:590
29092993410,10cyclictest122132sh09:29:001
29092993410,10cyclictest122132sh09:28:591
2909199347,3cyclictest0-21swapper/008:55:120
2909199345,5cyclictest81rcu_preempt10:35:000
2909199341,20cyclictest1399-21memory10:25:200
2909199337,13cyclictest16060-21cron09:40:010
2909199337,13cyclictest0-21swapper/012:40:270
29092993210,8cyclictest28642-21netstat08:45:201
2909199327,13cyclictest10896-21latency_hist07:59:590
2909199325,12cyclictest3207-21ntpd11:40:250
2909199325,12cyclictest3207-21ntpd11:40:250
29091993212,7cyclictest9702-21cron12:15:000
171082321,27sleep117199-21which09:40:251
2909299314,4cyclictest81rcu_preempt07:40:171
2909199316,13cyclictest0-21swapper/010:20:300
2909199312,24cyclictest14997-21df_inode08:10:130
2909199312,15cyclictest5243-21diskstats09:10:150
2909199311,4cyclictest81rcu_preempt10:10:360
29091993113,6cyclictest32758-21/usr/sbin/munin07:30:260
29091993113,5cyclictest16954-21/usr/sbin/munin09:40:210
238522311,4sleep123893-21ntp_states12:50:231
2909299305,3cyclictest81rcu_preempt11:06:081
29092993015,4cyclictest22-21ksoftirqd/109:20:281
2909299301,4cyclictest81rcu_preempt11:39:051
2909299300,4cyclictest81rcu_preempt12:20:161
2909199309,4cyclictest13136-21/usr/sbin/munin10:55:260
2909199306,12cyclictest0-21swapper/007:40:290
2909199302,15cyclictest0-21swapper/012:20:120
2909199302,14cyclictest19020-21users11:10:300
29091993013,4cyclictest16650-21aten_r4power_po08:15:100
29091993012,5cyclictest31949-21runrttasks11:45:260
2909199301,18cyclictest24027-21tr11:25:220
29091993011,6cyclictest2921-21seq11:55:170
2909199300,4cyclictest81rcu_preempt12:03:450
230192301,5sleep00-21swapper/011:22:430
219572301,25sleep122014-21/usr/sbin/munin12:45:251
209892301,5sleep10-21swapper/111:16:181
159312301,5sleep10-21swapper/109:38:431
81932291,5sleep10-21swapper/109:16:291
80262291,5sleep00-21swapper/010:43:190
63182291,5sleep10-21swapper/109:11:281
43762291,5sleep00-21swapper/009:05:500
30242291,5sleep00-21swapper/007:39:460
2909299295,4cyclictest81rcu_preempt10:49:301
2909299294,5cyclictest81rcu_preempt11:25:271
2909299291,6cyclictest3056-21/usr/sbin/munin09:05:271
2909199293,14cyclictest14467-21ntp_states12:25:240
2909199293,13cyclictest23661-21iostat12:50:180
2909199292,14cyclictest26478-21ntp_states10:05:270
29091992917,8cyclictest18399-21df09:45:130
29091992912,5cyclictest7913-21/usr/sbin/munin07:50:190
29091992911,6cyclictest18226-21ntp_states12:35:260
288342291,5sleep00-21swapper/011:39:400
252812291,5sleep00-21swapper/010:02:590
25262291,5sleep00-21swapper/009:01:580
24092291,5sleep10-21swapper/109:00:491
236642291,5sleep00-21swapper/008:32:050
233362291,5sleep10-21swapper/109:57:291
216782291,5sleep10-21swapper/108:25:581
214452291,5sleep00-21swapper/009:52:170
172282291,5sleep00-21swapper/011:06:120
155162291,5sleep10-21swapper/112:30:101
154112291,5sleep00-21swapper/011:01:510
154112291,5sleep00-21swapper/011:01:500
144812291,5sleep00-21swapper/008:09:220
116892291,5sleep00-21swapper/010:52:210
102582291,5sleep00-21swapper/009:23:110
42532281,5sleep10-21swapper/110:33:161
39432281,5sleep10-21swapper/111:58:521
305382281,5sleep10-21swapper/111:42:371
305382281,5sleep10-21swapper/111:42:361
2909299285,4cyclictest81rcu_preempt11:02:421
2909299285,4cyclictest81rcu_preempt11:02:421
2909299284,4cyclictest81rcu_preempt10:04:231
2909299283,4cyclictest81rcu_preempt12:11:251
2909299283,18cyclictest1837-21iostat_ios07:35:191
2909299282,3cyclictest81rcu_preempt10:53:131
29092992820,5cyclictest19726-21head08:20:281
29092992819,5cyclictest26223-21cpuspeed_turbos08:40:131
29092992815,7cyclictest10461-21iostat_ios12:15:171
2909299280,4cyclictest81rcu_preempt12:28:541
2909199288,9cyclictest11624-21latency08:00:220
2909199288,9cyclictest11624-21latency08:00:220
2909199284,9cyclictest18777-21diskstats08:20:140
2909199282,13cyclictest21689-21hddtemp_smartct12:45:180
2909199282,13cyclictest16397-21grep12:30:250
2909199282,13cyclictest10154-21df_inode12:15:110
2909199281,24cyclictest836-21perl11:50:170
2909199281,13cyclictest29764-21/usr/sbin/munin08:50:210
2909199281,13cyclictest27970-21aten_r4power_vo08:45:100
289322281,3sleep10-21swapper/110:11:571
277082281,5sleep00-21swapper/008:44:570
271562281,5sleep10-21swapper/110:07:581
223912281,4sleep122480-21sendmail_mailst11:20:251
191662281,5sleep10-21swapper/111:11:521
180192281,5sleep10-21swapper/108:17:051
140172281,5sleep10-21swapper/109:33:151
137142281,5sleep10-21swapper/110:58:561
128302281,4sleep10-21swapper/108:05:081
105652281,5sleep10-21swapper/107:57:531
6652271,5sleep10-21swapper/108:57:431
326112271,5sleep10-21swapper/110:20:511
322442271,5sleep10-21swapper/111:45:481
308162271,5sleep10-21swapper/110:16:571
2909299279,5cyclictest40250irq/92-i91512:05:201
2909299274,4cyclictest81rcu_preempt08:00:441
2909299274,4cyclictest81rcu_preempt08:00:441
2909299274,3cyclictest81rcu_preempt11:34:361
29092992715,7cyclictest1005-21diskstats10:25:131
2909299271,4cyclictest81rcu_preempt08:53:391
2909199279,5cyclictest5203-21kernelversion10:35:220
2909199272,13cyclictest7310-21/usr/sbin/munin09:15:160
2909199272,12cyclictest2225-21dbus-daemon11:15:200
2909199271,14cyclictest9781-21runrttasks10:47:010
2909199271,14cyclictest7465-21chrt12:06:130
2909199271,12cyclictest21547-21sed08:25:260
237732271,5sleep10-21swapper/108:33:131
196842271,5sleep10-21swapper/109:48:301
2909299265,4cyclictest81rcu_preempt12:02:481
29092992617,6cyclictest22-21ksoftirqd/112:39:141
2909299261,4cyclictest81rcu_preempt10:38:101
2909299261,4cyclictest81rcu_preempt09:51:411
2909199267,3cyclictest11565-21gdbus09:29:040
2909199267,3cyclictest11565-21gdbus09:29:030
2909199267,11cyclictest0-21swapper/009:57:550
2909299253,8cyclictest7780-21iostat_ios07:50:171
2909299252,10cyclictest7303-21ntp_states10:40:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional