You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-23 - 00:59

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 Mon Jun 22, 2026 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197529911591129,26cyclictest2695-21snmpd07:27:371
197529911161094,18cyclictest1166-21strings12:15:221
190082602555,31sleep00-21swapper/007:20:280
179772601551,34sleep10-21swapper/107:20:031
1975199242222,15cyclictest0-21swapper/012:15:220
52642990,21sleep03-21ksoftirqd/012:25:270
19751998965,7cyclictest0-21swapper/007:27:370
1975199811,47cyclictest27688-21taskset09:09:030
1975199761,14cyclictest6074-21taskset11:01:510
19751996717,31cyclictest3-21ksoftirqd/010:04:110
19751996615,31cyclictest3-21ksoftirqd/009:19:470
1975199632,44cyclictest24878-21/usr/sbin/munin09:00:220
1975199631,44cyclictest18098-21taskset08:42:100
1975199622,6cyclictest7498-21iostat09:40:190
1975199621,43cyclictest6727-21taskset08:11:220
1975199621,43cyclictest30820-21chrt10:41:030
19751996212,31cyclictest27642-21cut10:35:120
19751996212,31cyclictest27642-21cut10:35:120
1975199611,40cyclictest6646-21taskset09:39:120
1975199611,40cyclictest32319-21chrt12:10:570
19751996016,37cyclictest22733-21diskstats07:30:150
19751996015,26cyclictest3-21ksoftirqd/012:46:150
1975199601,45cyclictest19046-21/usr/sbin/munin10:10:260
1975199601,39cyclictest6874-21/usr/sbin/munin12:30:210
19751996012,6cyclictest11555-21users11:15:300
19751996010,5cyclictest10749-21cut09:50:110
1975199592,14cyclictest7880-21taskset11:06:050
1975199591,7cyclictest25252-21cat11:55:010
1975199591,6cyclictest9202-21hostname08:20:100
1975199591,40cyclictest9949-21taskset11:13:070
1975199591,40cyclictest25128-21taskset10:25:370
19751995912,30cyclictest21615-21unixbench_multi08:50:280
19751995911,7cyclictest14838-21wc12:50:280
1975199591,14cyclictest3489-21taskset08:05:100
1975199591,14cyclictest17495-21taskset11:33:210
1975199591,13cyclictest12460-21taskset08:27:120
19751995910,32cyclictest191522chrt11:36:020
19751995910,29cyclictest41532chrt10:56:340
1975199582,14cyclictest15772-21mailstats08:35:280
19751995815,32cyclictest3-21ksoftirqd/008:33:160
1975199581,15cyclictest23014-21taskset11:46:570
1975199581,14cyclictest19859-21taskset08:45:550
1975199581,13cyclictest7524-21df08:15:130
19751995810,31cyclictest13547-21taskset11:21:150
35752570,7sleep11975299cyclictest08:05:131
1975199579,5cyclictest10226-21taskset09:47:120
1975199579,4cyclictest28212-21ls09:10:130
1975199572,41cyclictest22898-21irqstats08:55:210
19751995714,32cyclictest3-21ksoftirqd/009:31:330
1975199571,39cyclictest25808-21chrt07:37:200
1975199571,14cyclictest30560-21chrt12:07:080
1975199571,14cyclictest21011-21chrt11:40:370
19751995611,6cyclictest17141-21ntp_states10:05:250
1975199561,13cyclictest28739-21taskset12:02:450
1975199551,15cyclictest2985-21seq08:01:380
1975199549,6cyclictest492-21taskset10:48:450
19751995417,32cyclictest1194-21fschecks_time10:50:150
1975199541,46cyclictest15351-21taskset11:25:320
1975199541,13cyclictest29817-21taskset07:49:510
1975199541,13cyclictest29817-21taskset07:49:500
1975199534,9cyclictest10550-21iostat_ios12:40:180
19751995317,30cyclictest3-21ksoftirqd/010:33:200
19751995211,5cyclictest12829-21diskstats09:55:110
1975199512,44cyclictest1144-21/usr/sbin/munin09:25:110
19751995116,30cyclictest32524-21fschecks_time07:55:160
19751995112,4cyclictest8487-21grep12:35:150
1975199511,13cyclictest32740-21python09:20:260
1975199506,6cyclictest25816-21tune2fs11:55:160
1975199492,6cyclictest27258-21python07:40:260
1975199492,43cyclictest20565-21/usr/sbin/munin10:15:170
19751994911,34cyclictest31141-21mailstats07:50:280
1975199473,7cyclictest2634-21df12:20:120
1975199471,14cyclictest22271-21/usr/sbin/munin10:20:140
225902460,9sleep11975299cyclictest08:55:151
19752993912,6cyclictest288942sendmail_mailqu09:10:281
19752993828,6cyclictest31678-21/usr/sbin/munin12:10:201
1975299351,15cyclictest113672threads11:15:271
238632331,5sleep10-21swapper/107:32:041
19752993312,5cyclictest81rcu_preempt09:45:281
79082321,5sleep10-21swapper/111:06:251
7292321,5sleep10-21swapper/109:22:281
294422321,5sleep10-21swapper/107:45:591
294422321,5sleep10-21swapper/107:45:581
256782321,5sleep10-21swapper/109:02:421
212462321,5sleep121250-21ntp_states08:50:241
1975299317,10cyclictest0-21swapper/112:09:361
1975299311,8cyclictest17823-21/usr/sbin/munin11:35:221
1975299311,17cyclictest14232-21hddtemp_smartct12:50:171
182182311,5sleep10-21swapper/108:43:261
135352311,5sleep10-21swapper/111:21:091
93352301,5sleep10-21swapper/112:35:301
9332301,5sleep10-21swapper/107:56:061
78372301,25sleep17841-21irqstats08:15:211
66992301,5sleep10-21swapper/109:39:461
286982301,5sleep10-21swapper/112:02:201
272612301,5sleep10-21swapper/110:33:201
233752301,5sleep10-21swapper/110:21:551
217152301,5sleep10-21swapper/110:19:211
1975299302,4cyclictest81rcu_preempt08:23:571
19752993021,5cyclictest24969-21uname07:35:191
19752993019,6cyclictest23527-21grep11:50:101
1975299301,4cyclictest81rcu_preempt09:29:171
1975299301,16cyclictest3109-21memory12:20:211
175972301,5sleep10-21swapper/111:34:251
160822301,5sleep10-21swapper/110:04:231
61212291,5sleep10-21swapper/111:02:201
21022291,4sleep12108-21iostat_ios08:00:201
1975299294,18cyclictest21894-21diskstats11:45:141
19752992916,7cyclictest9019-21iostat_ios11:10:211
1975299291,4cyclictest81rcu_preempt10:06:231
1975299291,15cyclictest20553-21ntp_states11:40:241
78022281,5sleep10-21swapper/112:34:031
42032281,5sleep10-21swapper/110:57:041
291032281,4sleep10-21swapper/110:38:001
291032281,4sleep10-21swapper/110:38:001
1975299289,5cyclictest5060-21strings12:25:231
1975299283,4cyclictest81rcu_preempt09:55:401
134362281,5sleep10-21swapper/112:48:371
124352281,5sleep10-21swapper/108:27:001
4692271,5sleep10-21swapper/110:48:331
311522271,5sleep10-21swapper/110:44:351
276012271,5sleep10-21swapper/109:08:101
201772271,5sleep10-21swapper/108:49:151
1975299274,3cyclictest81rcu_preempt09:32:311
1975299274,17cyclictest13490-21iostat_ios08:30:201
1975299273,18cyclictest15062-21diskstats08:35:151
1975299272,12cyclictest0-21swapper/110:13:291
19752992719,5cyclictest14483-21fschecks_time11:25:141
1975299266,16cyclictest0-21swapper/109:40:271
1975299265,18cyclictest30601-21fschecks_time07:50:161
1975299257,14cyclictest11714-21grep12:45:021
1975299253,16cyclictest26542-21diskstats07:40:131
1975299252,9cyclictest25819-21perl11:55:161
1975299252,9cyclictest1618-21ntp_states10:50:241
1975299252,17cyclictest30841-21python09:15:271
1975299251,11cyclictest11546-21taskset09:50:261
1975299245,6cyclictest0-21swapper/108:10:221
1975299242,8cyclictest0-21swapper/110:25:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional