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2026-06-17 - 21:50

OSADL QA Farm on Real-time of Mainline Linux

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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 
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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 Wed Jun 17, 2026 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53249912301177,49cyclictest5547-21wget07:25:120
53259911291110,16cyclictest5574-21wget07:25:121
53259911251105,16cyclictest27454-21strings09:45:231
52542628540,72sleep10-21swapper/107:24:491
51272573527,31sleep00-21swapper/007:23:280
532499180170,7cyclictest0-21swapper/009:45:230
532599698,55cyclictest0-21swapper/111:30:201
5325995618,31cyclictest5900-21iostat_ios11:40:201
5325995415,34cyclictest15763-21missed_timers10:40:201
532599532,8cyclictest13454-21df10:35:141
532599524,8cyclictest486-21iostat_ios10:00:191
5325995213,8cyclictest2389-21iostat_ios10:05:201
5325995213,4cyclictest0-21swapper/110:20:581
5325995212,5cyclictest0-21swapper/109:50:451
5325995212,4cyclictest0-21swapper/111:29:281
5325995212,4cyclictest0-21swapper/109:21:301
532599521,15cyclictest2695-21snmpd11:35:091
5325995210,3cyclictest0-21swapper/108:05:271
5325995210,3cyclictest0-21swapper/108:05:271
532599519,8cyclictest25457-21diskstats08:15:151
532599514,9cyclictest8012-21/usr/sbin/munin07:30:321
532599512,8cyclictest22224-21/usr/sbin/munin12:25:311
532599512,7cyclictest13429-21iostat_ios12:00:201
5325995111,4cyclictest0-21swapper/110:14:181
532599504,9cyclictest26665-21memory12:35:221
532599504,7cyclictest25838-21python09:40:241
532599504,14cyclictest0-21swapper/111:00:181
532599503,8cyclictest11294-21/usr/sbin/munin10:30:311
532599503,7cyclictest12141-21hddtemp_smartct09:05:161
532599503,14cyclictest0-21swapper/108:20:291
532599502,12cyclictest0-21swapper/111:20:191
5325995013,8cyclictest32185-21munin-run10:00:001
5325995012,4cyclictest0-21swapper/108:47:571
5325995010,6cyclictest32101-21grep12:50:141
5325995010,4cyclictest0-21swapper/112:45:101
532599496,4cyclictest0-21swapper/107:50:171
532599494,9cyclictest21039-21memory12:20:231
532599494,8cyclictest23289-21/usr/sbin/munin08:10:321
532599492,12cyclictest0-21swapper/109:11:411
532599492,12cyclictest0-21swapper/108:33:571
5325994913,6cyclictest27729-21runrttasks11:11:401
5325994913,6cyclictest20028-21hddtemp_smartct08:00:161
5325994912,6cyclictest5919-21df10:15:121
532599491,14cyclictest14044-21grep07:45:111
5325994911,4cyclictest0-21swapper/107:40:091
532599491,13cyclictest2695-21snmpd10:28:291
5325994911,3cyclictest0-21swapper/111:08:021
133562490,8sleep0532499cyclictest12:00:190
532599488,4cyclictest0-21swapper/111:16:171
532599484,9cyclictest7175-21/usr/sbin/munin11:45:301
532599483,8cyclictest9544-21hddtemp_smartct11:50:171
532599483,8cyclictest10461-21memory09:00:231
532599482,8cyclictest8360-21hddtemp_smartct08:55:161
532599482,14cyclictest17640-21/usr/sbin/munin07:55:171
532599482,12cyclictest0-21swapper/108:44:221
5325994815,5cyclictest25221-21wc12:30:261
5325994813,4cyclictest0-21swapper/112:05:191
5325994812,4cyclictest0-21swapper/111:55:251
5325994812,3cyclictest0-21swapper/108:25:131
5325994811,3cyclictest0-21swapper/110:50:131
532599481,12cyclictest10761-21ntp_states07:35:261
5325994810,4cyclictest0-21swapper/108:53:591
5325994810,4cyclictest0-21swapper/108:35:511
532599473,9cyclictest15697-21diskstats09:15:121
532599472,8cyclictest18451-21/usr/sbin/munin12:15:311
532599472,13cyclictest0-21swapper/109:35:261
532599472,11cyclictest0-21swapper/112:10:101
532599471,13cyclictest21851-21unixbench_multi10:55:271
532599471,13cyclictest21851-21unixbench_multi10:55:261
5325994710,7cyclictest2225-21dbus-daemon09:25:161
532599463,13cyclictest0-21swapper/109:30:151
532599463,13cyclictest0-21swapper/109:30:151
5325994612,5cyclictest16953-21aten_r4power_cu10:45:101
532599454,7cyclictest27870-21/usr/sbin/munin12:40:311
100612401,5sleep010069-21diskstats09:00:160
233242392,4sleep00-21swapper/012:25:290
5324993811,14cyclictest29178-21irqstats09:50:200
58302371,6sleep05940-21ls08:50:000
532499378,14cyclictest16964-21aten_r4power_cu10:45:100
5324993611,13cyclictest24926-21ntp_states12:30:220
5324993524,7cyclictest9733-21cron07:34:590
5324993514,7cyclictest30707-21iostat_ios11:20:190
306972340,8sleep0532499cyclictest08:30:010
5324993314,6cyclictest28697-21ntp_states12:40:240
5324993310,19cyclictest26095-21chrt11:09:110
532499329,19cyclictest13682-21wget10:35:190
5324993214,5cyclictest2016-21irqstats11:30:200
532499311,4cyclictest81rcu_preempt12:12:340
235732311,4sleep023582-21diskstats08:10:140
532499302,8cyclictest5142-21sendmail11:40:010
5324993020,6cyclictest322-21aten_r4power_vo08:35:100
532499301,5cyclictest81rcu_preempt09:57:070
532499301,4cyclictest81rcu_preempt10:33:480
532499300,4cyclictest81rcu_preempt08:41:550
93662291,5sleep00-21swapper/008:57:440
532499298,10cyclictest14856-21mailstats07:45:260
532499297,5cyclictest28446-21runrttasks08:21:380
532499294,20cyclictest25850-21memory08:15:220
532499293,9cyclictest9715-21diskstats10:25:140
532499292,14cyclictest8556-21python10:20:270
532499292,14cyclictest7467-21/usr/sbin/munin11:45:120
532499292,14cyclictest23948-21python09:35:270
5324992915,10cyclictest2225-21dbus-daemon12:39:400
532499291,4cyclictest81rcu_preempt11:54:370
532499291,4cyclictest81rcu_preempt09:09:000
532499291,4cyclictest81rcu_preempt08:50:540
5324992912,6cyclictest31097-21df_inode08:30:150
5324992911,5cyclictest32587-21irqstats11:25:190
51622291,5sleep00-21swapper/010:11:500
264042291,5sleep00-21swapper/009:43:390
242232291,5sleep00-21swapper/011:04:130
224102291,5sleep00-21swapper/009:31:180
224102291,5sleep00-21swapper/009:31:170
219942291,5sleep00-21swapper/010:55:480
219942291,5sleep00-21swapper/010:55:470
203962291,5sleep00-21swapper/010:53:400
190812291,5sleep00-21swapper/007:57:120
150742291,5sleep00-21swapper/009:13:170
532499281,4cyclictest81rcu_preempt12:06:190
532499281,4cyclictest81rcu_preempt07:50:460
5324992811,5cyclictest30072-21chrt12:45:140
532499281,14cyclictest6014-21cut10:15:150
532499281,14cyclictest20193-21python09:25:260
532499281,14cyclictest15783-21fschecks_count09:15:130
5324992810,6cyclictest26667-21fschecks_count11:10:160
297412281,5sleep00-21swapper/011:18:050
216702281,5sleep00-21swapper/012:20:580
214012281,5sleep00-21swapper/008:05:040
214012281,5sleep00-21swapper/008:05:040
197532281,5sleep00-21swapper/012:15:460
12862281,5sleep00-21swapper/010:01:460
123892281,5sleep00-21swapper/011:57:210
117832281,5sleep00-21swapper/007:39:310
532499277,7cyclictest2616-21ntpdc10:05:230
5324992716,6cyclictest5835-21ls11:40:170
532499271,17cyclictest0-21swapper/008:00:290
532499271,15cyclictest0-21swapper/007:40:250
187442271,5sleep00-21swapper/009:22:120
532499262,12cyclictest0-21swapper/010:40:100
532499261,4cyclictest81rcu_preempt12:50:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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