You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-14 - 22:29

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 376 highest latencies:
System rack9slot4s (updated Fri Aug 14, 2026 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92699911941143,31cyclictest13717-21latency_hist07:35:001
90442578532,31sleep00-21swapper/007:23:140
88912531486,30sleep10-21swapper/107:21:381
926899115107,5cyclictest13706-21apt-get07:35:000
926999437,8cyclictest3286-21runrttasks11:50:201
926899409,5cyclictest26909-21fschecks_count11:00:170
226902391,5sleep111565-21gdbus07:55:431
288892361,4sleep12695-21snmpd08:14:181
135502361,31sleep113578-21/usr/sbin/munin09:00:001
139152351,30sleep014021-21df09:00:130
9268993413,7cyclictest23107-21cron08:00:000
9268993412,8cyclictest10102-21/usr/sbin/munin11:40:240
926899341,19cyclictest9102-21chrt10:11:320
68532340,10sleep0926899cyclictest08:40:210
203192341,29sleep120339-21ntpq07:50:231
926999334,11cyclictest17792-21diskstats09:10:151
926899332,27cyclictest29125-21munin-node08:15:110
9268993314,6cyclictest21193-21df_inode10:45:130
312172331,28sleep131263-21iostat09:45:211
240352330,3sleep0111rcuc/010:50:290
123392330,4sleep081rcu_preempt10:20:240
926999321,13cyclictest0-21swapper/109:28:131
926899325,4cyclictest81rcu_preempt12:10:360
9268993214,6cyclictest3-21ksoftirqd/011:15:100
9268993213,6cyclictest30242-21diskstats12:35:160
9268993213,6cyclictest30242-21diskstats12:35:160
194072320,5sleep1211ktimersoftd/112:05:231
121082321,27sleep112110-21irqstats10:20:211
9269993116,8cyclictest32141-21diskstats12:40:151
926999311,4cyclictest81rcu_preempt11:37:121
926999311,4cyclictest81rcu_preempt11:31:221
9269993111,7cyclictest0-21swapper/107:40:291
926899316,12cyclictest32195-21taskset09:48:030
926899312,25cyclictest7234-21chrt11:35:010
926899312,16cyclictest0-21swapper/009:26:110
926899312,14cyclictest10182-21if_eth010:15:180
926899311,5cyclictest81rcu_preempt11:35:460
926899311,4cyclictest81rcu_preempt12:01:580
926899311,28cyclictest0-21swapper/010:00:080
926899311,28cyclictest0-21swapper/008:05:100
9268993112,6cyclictest2915-21hddtemp_smartct08:30:170
9268993112,6cyclictest19854-21perl09:15:160
926899311,26cyclictest1974-21lldpad08:03:290
9268993112,5cyclictest14036-21python11:50:270
9268993111,6cyclictest15101-21munin-run10:30:000
39062310,5sleep0111rcuc/011:25:130
926999307,4cyclictest81rcu_preempt09:23:241
926999306,4cyclictest40250irq/92-i91511:15:201
926999305,4cyclictest81rcu_preempt08:21:101
926999304,10cyclictest25254-21iostat_ios10:55:211
9269993020,6cyclictest18512-21turbostat.cron12:05:011
926899308,3cyclictest0-21swapper/011:25:010
926899305,13cyclictest12624-21chrt11:47:360
926899302,14cyclictest26476-21df12:25:130
926899302,14cyclictest17245-21/usr/sbin/munin10:35:120
9268993016,4cyclictest3-21ksoftirqd/008:51:220
926899301,5cyclictest81rcu_preempt08:35:200
9268993015,5cyclictest3-21ksoftirqd/012:45:330
9268993014,5cyclictest3-21ksoftirqd/010:59:570
926899301,15cyclictest17349-21munin-run09:10:000
173522301,5sleep00-21swapper/007:43:440
94832291,5sleep00-21swapper/008:46:460
94112291,5sleep00-21swapper/007:25:130
926999296,4cyclictest81rcu_preempt08:38:031
926999295,5cyclictest40250irq/92-i91511:20:101
926999295,4cyclictest81rcu_preempt11:40:221
926999295,4cyclictest81rcu_preempt10:50:011
926999295,4cyclictest81rcu_preempt10:17:001
926999295,4cyclictest81rcu_preempt09:43:121
926999294,4cyclictest81rcu_preempt08:01:581
926999294,18cyclictest25970-21iostat_ios08:05:211
926999291,24cyclictest30772-21ntp_states12:35:251
926999291,24cyclictest30772-21ntp_states12:35:251
9269992910,6cyclictest24387-21aten_r4power_po12:20:121
926899299,7cyclictest15305-21basename10:30:100
926899299,5cyclictest25613-21iostat09:30:200
926899297,10cyclictest19894-21grep12:05:300
926899292,14cyclictest14266-21/usr/sbin/munin07:35:160
926899292,12cyclictest12969-21timerwakeupswit08:55:330
926899291,9cyclictest32744-21watchsnmpd08:25:000
9268992913,5cyclictest3-21ksoftirqd/007:49:520
9268992910,5cyclictest28053-21grep08:10:240
73912291,5sleep00-21swapper/010:08:150
54702291,5sleep10-21swapper/110:02:471
46612291,5sleep00-21swapper/012:51:330
38272291,5sleep10-21swapper/108:31:451
37162291,5sleep00-21swapper/009:59:150
316092291,5sleep00-21swapper/011:10:470
281852291,5sleep00-21swapper/009:35:360
174912291,5sleep00-21swapper/009:10:090
110452291,5sleep10-21swapper/107:29:131
926999284,4cyclictest81rcu_preempt11:28:461
926999284,15cyclictest0-21swapper/111:56:221
926999283,19cyclictest19628-21iostat_ios10:40:211
9269992817,6cyclictest1383-21find08:25:261
9268992813,5cyclictest3-21ksoftirqd/012:18:520
9268992812,5cyclictest3-21ksoftirqd/009:21:000
926899281,14cyclictest24323-21/usr/sbin/munin12:20:120
75352281,5sleep10-21swapper/108:41:041
74592281,5sleep10-21swapper/110:08:591
318482281,5sleep10-21swapper/111:13:171
298012281,5sleep10-21swapper/111:06:321
297052281,5sleep00-21swapper/012:34:130
277832281,5sleep10-21swapper/112:28:441
263872281,4sleep10-21swapper/109:31:241
224162281,5sleep10-21swapper/112:15:081
219622281,5sleep10-21swapper/112:11:581
193552281,5sleep10-21swapper/109:15:011
170642281,5sleep10-21swapper/109:07:201
169272281,5sleep10-21swapper/110:34:351
148862281,4sleep00-21swapper/011:55:050
14662281,5sleep00-21swapper/009:51:340
125412281,5sleep10-21swapper/111:46:451
112602281,5sleep10-21swapper/108:50:441
97922271,5sleep10-21swapper/108:49:591
926999275,4cyclictest81rcu_preempt10:11:411
926999275,4cyclictest81rcu_preempt09:59:351
926999274,4cyclictest81rcu_preempt10:26:591
926999274,4cyclictest81rcu_preempt09:00:441
9269992716,7cyclictest1400-21runrttasks09:50:531
9269992716,4cyclictest22-21ksoftirqd/108:15:131
9268992712,5cyclictest3-21ksoftirqd/011:07:310
926899271,22cyclictest1130-21missed_timers08:25:220
926899271,14cyclictest11565-21gdbus12:40:370
926899271,13cyclictest28819-21wget09:40:100
926899271,13cyclictest20142-21kernelversion07:50:200
279422271,5sleep10-21swapper/111:01:411
189422271,5sleep10-21swapper/107:45:471
184282271,5sleep10-21swapper/110:35:401
152102271,5sleep10-21swapper/107:36:091
926999263,17cyclictest1897-21iostat_ios12:45:191
926999261,13cyclictest3286-21runrttasks09:35:321
926899261,13cyclictest19300-21ls10:40:130
288912261,5sleep10-21swapper/112:30:241
926999252,3cyclictest81rcu_preempt10:45:241
926999251,9cyclictest3881-21iostat_ios12:50:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional