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2026-03-31 - 09:43

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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.

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 100 highest latencies:
System rackbslot5s.osadl.org (updated Tue Mar 31, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1054276994736,8cyclictest391ktimers/322:15:133
1054267994740,4cyclictest1092514-21munin-plugin-st21:00:001
1054271994614,6cyclictest0-21swapper/223:15:252
1054271994517,25cyclictest0-21swapper/222:10:282
1054276994433,8cyclictest391ktimers/320:50:133
1054271994417,3cyclictest0-21swapper/222:15:182
1054267994435,5cyclictest1127676-21auditctl22:40:001
1054271994317,4cyclictest0-21swapper/219:20:252
1054276994217,17cyclictest645-21runrttasks23:55:163
1054271994214,6cyclictest0-21swapper/219:45:022
1054271994213,5cyclictest0-21swapper/223:30:012
1054267994233,6cyclictest1086989-21unixbench_singl20:40:261
1054267994233,5cyclictest1066280-21unixbench_multi19:40:251
1054262994229,10cyclictest121ktimers/020:10:120
1054267994133,4cyclictest1112940-21unixbench_multi21:55:281
1054267994133,4cyclictest1112940-21unixbench_multi21:55:271
1054267994132,6cyclictest1062875-21unixbench_multi19:30:261
1054267994131,6cyclictest1078670-21munin-plugin-st20:20:011
1054262994134,4cyclictest1144741-21idleruntime-cro23:30:000
1054271994013,5cyclictest0-21swapper/200:00:002
1054267994031,4cyclictest0-21swapper/100:25:001
1054262994034,4cyclictest1122457-21kworker/u8:2+events_unbound23:22:440
1054262994033,4cyclictest1090814-21idleruntime-cro20:55:000
1054262994032,5cyclictest1099566-21sendmail21:20:000
1054276993922,12cyclictest0-21swapper/300:15:123
1054271993916,3cyclictest0-21swapper/220:55:012
1054267993932,4cyclictest1085699-21munin-plugin-st20:40:011
1054267993929,6cyclictest1116605-21unixbench_singl22:05:261
1054267993929,6cyclictest0-21swapper/119:25:261
1054262993927,7cyclictest0-21swapper/000:20:260
1054276993827,8cyclictest1148143-21cron23:40:003
1054276993827,7cyclictest1164670-21/usr/sbin/munin00:25:253
1054276993827,7cyclictest1164670-21/usr/sbin/munin00:25:253
1054276993819,4cyclictest1106191-21users21:35:273
1054271993813,4cyclictest0-21swapper/221:15:172
1054271993811,8cyclictest1057807-21users19:15:272
1054267993829,4cyclictest0-21swapper/119:45:171
1054262993829,6cyclictest0-21swapper/022:00:000
1054262993829,6cyclictest0-21swapper/022:00:000
1054262993825,8cyclictest121ktimers/019:30:140
1054276993729,5cyclictest1073076-21unixbench_multi20:00:263
1054276993726,7cyclictest1138830-21/usr/sbin/munin23:10:243
1054276993723,11cyclictest1159055-21/usr/sbin/munin00:10:193
1054276993723,11cyclictest1131436-21/usr/sbin/munin22:50:143
1054276993723,11cyclictest1086220-21/usr/sbin/munin20:40:173
1054276993722,9cyclictest0-21swapper/322:05:133
1054271993724,8cyclictest1067984-21grep19:45:262
1054271993717,3cyclictest0-21swapper/221:35:002
1054267993730,4cyclictest1071856-21sendmail20:00:001
1054267993728,4cyclictest0-21swapper/119:20:261
1054276993626,7cyclictest1128492-21/usr/sbin/munin22:40:213
1054276993626,7cyclictest1058896-21/usr/sbin/munin19:20:193
1054276993626,5cyclictest0-21swapper/322:32:333
1054276993625,7cyclictest1077721-21/usr/sbin/munin20:15:203
1054276993625,7cyclictest1068665-21munin-node19:50:113
1054276993625,6cyclictest0-21swapper/321:12:153
1054276993624,9cyclictest1117593-21/usr/sbin/munin22:10:173
1054276993624,9cyclictest1113400-21apt-get22:00:053
1054276993623,10cyclictest1108811-21/usr/sbin/munin21:45:173
1054276993622,10cyclictest1148953-21ntp_states23:40:213
1054276993621,11cyclictest1079987-21/usr/sbin/munin20:20:253
1054276993617,9cyclictest0-21swapper/323:20:093
1054271993628,4cyclictest1097836-21cron21:15:002
1054267993626,6cyclictest0-21swapper/122:45:001
1054267993625,7cyclictest0-21swapper/123:00:001
1054276993526,6cyclictest1103627-21fschecks_time21:30:163
1054276993525,7cyclictest1137043-21/usr/sbin/munin23:05:233
1054276993525,7cyclictest1124015-21cron22:27:003
1054276993525,7cyclictest1124015-21cron22:27:003
1054276993525,7cyclictest1087762-21diskstats20:45:153
1054276993522,9cyclictest1167460-21/usr/sbin/munin00:35:153
1054276993522,10cyclictest1066394-21cron19:41:013
1054276993520,11cyclictest1127191-21/usr/sbin/munin22:35:263
1054276993520,11cyclictest1110538-21if_eth121:50:173
1054276993517,14cyclictest1064087-21runrttasks19:35:203
1054271993528,4cyclictest1113418-21basename22:00:002
1054271993528,4cyclictest1113418-21basename22:00:002
1054271993528,3cyclictest0-21swapper/222:40:162
1054271993522,9cyclictest0-21swapper/221:00:002
1054267993525,6cyclictest0-21swapper/120:30:011
1054267993525,6cyclictest0-21swapper/120:30:011
1054267993525,6cyclictest0-21swapper/100:35:271
1054262993526,5cyclictest1030891-21kworker/u8:3+events_unbound19:52:010
1054262993525,7cyclictest1082079-21auditctl20:30:010
1054262993525,7cyclictest1082079-21auditctl20:30:000
1054262993525,6cyclictest1165415-21apt00:30:000
1054262993525,6cyclictest1165415-21apt00:30:000
1054276993425,6cyclictest1074132-21/usr/sbin/munin20:05:193
1054276993424,7cyclictest1095305-21/usr/sbin/munin21:05:243
1054276993424,7cyclictest1082525-21/usr/sbin/munin20:30:133
1054276993424,7cyclictest1060523-21/usr/sbin/munin19:25:193
1054276993424,6cyclictest0-21swapper/320:35:163
1054276993422,9cyclictest1122350-21sshd22:22:273
1054276993422,8cyclictest1080668-21/usr/sbin/munin20:25:153
1054276993422,8cyclictest1080668-21/usr/sbin/munin20:25:153
1054276993421,10cyclictest1098209-21/usr/sbin/munin21:15:173
1054276993419,12cyclictest1100741-21/usr/sbin/munin21:20:253
1054276993418,11cyclictest1093419-21/usr/sbin/munin21:00:193
1054276993418,11cyclictest1093419-21/usr/sbin/munin21:00:193
1054276993417,13cyclictest1167105-21cron00:34:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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