You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-12 - 11:49

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 Sun Jul 12, 2026 00:59:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286479911581149,6cyclictest0-21swapper/119:28:051
279852617510,34sleep00-21swapper/019:20:310
284092463418,30sleep10-21swapper/119:23:031
2864699195171,21cyclictest0-21swapper/019:28:050
2344121060,8sleep02864699cyclictest20:35:110
28647993922,6cyclictest22-21ksoftirqd/120:44:071
28646993924,11cyclictest9507-21timerwakeupswit19:55:300
28647993722,5cyclictest22-21ksoftirqd/121:13:181
28647993721,6cyclictest22-21ksoftirqd/120:17:121
28647993720,6cyclictest22-21ksoftirqd/120:24:041
28647993720,6cyclictest22-21ksoftirqd/119:34:381
28647993621,5cyclictest22-21ksoftirqd/100:38:521
28647993620,5cyclictest22-21ksoftirqd/119:42:411
28647993619,6cyclictest22-21ksoftirqd/123:52:291
28647993619,6cyclictest22-21ksoftirqd/122:46:501
28647993615,6cyclictest22-21ksoftirqd/120:35:211
2864799361,22cyclictest18764-21cron23:15:001
28647993520,6cyclictest22-21ksoftirqd/123:32:221
28647993519,4cyclictest22-21ksoftirqd/120:52:071
28647993519,4cyclictest22-21ksoftirqd/120:52:061
28647993518,6cyclictest22-21ksoftirqd/122:10:141
28647993518,6cyclictest22-21ksoftirqd/100:49:581
74852341,29sleep17505-21idleruntime-cro22:44:591
28647993419,5cyclictest22-21ksoftirqd/120:07:191
28647993419,5cyclictest22-21ksoftirqd/100:13:541
28647993419,4cyclictest22-21ksoftirqd/120:33:291
2864799341,21cyclictest2497-21grep23:55:281
28647993410,11cyclictest3939-21seq21:08:331
168572341,4sleep12695-21snmpd21:40:521
124632341,29sleep111779-21/usr/sbin/munin21:30:221
28647993320,4cyclictest22-21ksoftirqd/122:33:271
28647993319,4cyclictest22-21ksoftirqd/123:00:101
28647993318,6cyclictest22-21ksoftirqd/123:26:571
28647993318,6cyclictest22-21ksoftirqd/100:44:571
28647993318,5cyclictest22-21ksoftirqd/121:04:391
2864799331,20cyclictest13641-21runrttasks21:35:031
2864799331,19cyclictest9179-21ntp_offset19:55:251
28647993311,6cyclictest22-21ksoftirqd/122:16:011
28647993310,5cyclictest7334-21tail21:15:321
64802321,9sleep00-21swapper/019:50:070
2864799327,12cyclictest15699-21taskset20:14:461
2864799322,3cyclictest0-21swapper/123:36:221
2864799322,16cyclictest0-21swapper/122:35:261
28647993217,5cyclictest22-21ksoftirqd/122:51:221
28647993216,6cyclictest22-21ksoftirqd/122:05:381
237572320,8sleep02864699cyclictest22:00:230
2864799311,8cyclictest4833-21/usr/sbin/munin19:45:111
2864799311,7cyclictest7576-21cat19:50:291
28647993117,5cyclictest22-21ksoftirqd/122:57:521
28647993117,4cyclictest22-21ksoftirqd/100:52:161
28647993116,5cyclictest22-21ksoftirqd/122:20:421
28647993116,5cyclictest22-21ksoftirqd/100:08:361
2864699318,8cyclictest11565-21gdbus20:16:120
2864699316,4cyclictest81rcu_preempt19:30:300
2864699311,4cyclictest81rcu_preempt21:15:160
113522311,26sleep111359-21diskstats00:20:151
2864799307,12cyclictest0-21swapper/123:19:411
2864799303,7cyclictest2502-21sendmail19:39:591
2864799303,5cyclictest0-21swapper/100:15:161
2864799301,8cyclictest3286-21runrttasks20:01:091
28647993016,5cyclictest22-21ksoftirqd/100:28:101
28647993016,4cyclictest22-21ksoftirqd/121:46:271
2864699304,4cyclictest81rcu_preempt20:10:240
2864699303,5cyclictest81rcu_preempt23:00:260
2864699303,4cyclictest81rcu_preempt23:35:120
2864699303,4cyclictest81rcu_preempt19:49:550
2864699301,15cyclictest0-21swapper/023:58:450
28646993011,14cyclictest51422chrt00:03:550
2864699300,4cyclictest81rcu_preempt23:24:330
101892301,5sleep10-21swapper/121:25:141
324582291,5sleep10-21swapper/122:25:011
2864799292,17cyclictest0-21swapper/100:03:281
2864799292,14cyclictest31239-21diskstats20:55:171
2864799292,14cyclictest15779-21irqstats23:05:211
2864799291,9cyclictest8691-21latency21:20:211
28647992915,5cyclictest22-21ksoftirqd/120:48:361
2864699299,7cyclictest20332-21awk00:45:000
2864699298,7cyclictest2489-21munin-run19:40:000
2864699293,24cyclictest0-21swapper/020:33:540
2864699292,4cyclictest81rcu_preempt22:17:300
28646992918,7cyclictest6292-21ps00:05:260
2864699291,4cyclictest81rcu_preempt21:33:310
2864699291,3cyclictest0-21swapper/000:10:570
2864699291,12cyclictest30873-21cstates22:20:120
2864699291,11cyclictest19047-21grep23:15:130
223242291,5sleep10-21swapper/123:22:481
19002291,5sleep00-21swapper/021:03:000
163312291,5sleep00-21swapper/000:32:590
149742291,25sleep014978-21pidof21:36:010
104632291,5sleep00-21swapper/000:15:440
316512281,5sleep10-21swapper/123:47:011
300022281,5sleep00-21swapper/023:44:230
2864799284,13cyclictest40250irq/92-i91521:50:171
2864799282,8cyclictest24238-21unixbench_multi22:00:301
2864799282,12cyclictest28946-21iostat23:40:181
28647992815,9cyclictest15650-21ntpq00:30:261
2864799281,14cyclictest21207-21aten_r4power_en21:55:141
2864799281,13cyclictest20925-21users20:25:311
2864699288,5cyclictest4268-21fschecks_count22:35:160
2864699287,5cyclictest0-21swapper/020:45:140
2864699284,17cyclictest18016-21iostat_ios21:45:200
28646992819,5cyclictest21585-21grep00:45:280
2864699281,4cyclictest81rcu_preempt22:58:290
2864699281,4cyclictest81rcu_preempt00:36:160
2864699281,15cyclictest0-21swapper/021:40:030
2864699281,12cyclictest23919-21runrttasks00:53:150
28646992810,4cyclictest2615-21fschecks_count21:05:190
28646992810,4cyclictest23031-21fschecks_count23:25:150
165902281,5sleep00-21swapper/023:06:570
14392281,5sleep00-21swapper/022:27:010
142762281,5sleep00-21swapper/000:26:060
111872281,5sleep00-21swapper/021:25:370
42862271,5sleep00-21swapper/019:43:200
2864699278,14cyclictest127242chrt00:24:270
2864699273,9cyclictest17349-21diskstats23:10:140
2864699273,11cyclictest0-21swapper/021:10:080
28646992718,5cyclictest17866-21aten_r4power_po20:20:120
28646992716,6cyclictest27343-21sort22:10:170
28646992714,6cyclictest13115-21mailstats20:05:270
265042271,5sleep00-21swapper/022:08:270
2864699268,5cyclictest8702-21cat21:20:210
2864699264,16cyclictest29358-21diskstats20:50:160
2864699264,16cyclictest29358-21diskstats20:50:150
2864699261,7cyclictest10733-21awk22:50:300
2864699261,6cyclictest8101-21grep22:45:180
28646992616,6cyclictest3-21ksoftirqd/023:48:200
2864699261,5cyclictest6267-21/usr/sbin/munin22:40:170
2864699261,14cyclictest0-21swapper/021:58:090
2864699261,13cyclictest2882-21wc22:30:250
2864699261,13cyclictest25595-21smartctl23:30:280
2864699261,12cyclictest11103-21open_files20:00:260
209722261,5sleep00-21swapper/021:54:380
10492261,5sleep00-21swapper/023:51:510
2864699258,5cyclictest25586-21df20:40:120
28646992514,7cyclictest20460-21ntpdc20:25:250
2864699247,5cyclictest11565-21gdbus20:55:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional