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2025-11-19 - 00:38

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 Nov 18, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2264581994940,6cyclictest2379626-21idleruntime-cro12:40:001
2264576994839,6cyclictest2358929-21auditctl11:40:000
2264585994736,7cyclictest2312451-21cut09:25:162
2264581994719,25cyclictest2316686-21unixbench_multi09:35:301
2264581994719,25cyclictest2316686-21unixbench_multi09:35:301
2264581994623,18cyclictest0-21swapper/110:40:201
2264585994534,6cyclictest215-21dbus-daemon10:30:152
2264581994519,23cyclictest0-21swapper/111:35:171
226458199441,9cyclictest22671462cstates07:15:181
226458199441,9cyclictest22671462cstates07:15:171
2264590994334,5cyclictest2349948-21grep11:10:243
226458199431,9cyclictest2375582-21/usr/sbin/munin12:25:251
226458199431,9cyclictest2375582-21/usr/sbin/munin12:25:251
226458199431,11cyclictest2283832-21cron08:02:011
2264581994214,24cyclictest0-21swapper/109:00:001
2264581994214,24cyclictest0-21swapper/109:00:001
2264585994133,5cyclictest2379617-21munin-plugin-st12:40:002
226458199411,9cyclictest2365055-21/usr/sbin/munin11:55:251
226458199411,9cyclictest2284634-21/usr/sbin/munin08:05:191
226458199411,8cyclictest2279199-21/usr/sbin/munin07:50:181
226458199411,10cyclictest2363958-21cron11:54:001
226458199411,10cyclictest2288505-21/usr/sbin/munin08:15:241
226458199411,10cyclictest2288505-21/usr/sbin/munin08:15:241
2264585994032,4cyclictest0-21swapper/212:00:002
2264581994028,8cyclictest440-21cron08:30:001
226458199401,9cyclictest2335824-21tr10:30:221
226458199401,9cyclictest2330865-21cron10:16:011
226458199401,9cyclictest2307487-21/usr/sbin/munin09:10:211
2264581994011,26cyclictest2355648-21date11:30:011
2264581994011,25cyclictest0-21swapper/109:20:271
2264576994032,6cyclictest121ktimers/012:35:170
2264590993931,5cyclictest2329497-21apt10:15:013
226458199393,6cyclictest2278068-21ntp_states07:45:231
226458199393,10cyclictest2281468-21ntp_states07:55:211
226458199391,9cyclictest2360992-21/usr/sbin/munin11:45:161
226458199391,9cyclictest2360475-21cron11:43:001
226458199391,9cyclictest2360475-21cron11:43:001
226458199391,8cyclictest2343138-21/usr/sbin/munin10:50:271
2264581993912,24cyclictest2371323-21fschecks_time12:15:171
2264581993912,23cyclictest0-21swapper/111:30:151
226458199391,10cyclictest2265304-21/usr/sbin/munin07:10:251
2264590993830,4cyclictest0-21swapper/311:35:263
226458199389,5cyclictest2349699-21/usr/sbin/munin11:10:241
226458199389,3cyclictest0-21swapper/109:45:261
226458199383,7cyclictest630-21snmpd10:28:401
226458199381,9cyclictest2366088-21/usr/sbin/munin12:00:151
226458199381,9cyclictest2340866-21memory10:45:221
226458199381,9cyclictest2312829-21ntp_states09:25:201
2264581993817,17cyclictest1-21systemd12:30:311
2264581993816,18cyclictest0-21swapper/111:00:231
226458199381,5cyclictest2332779-21seq10:20:431
2264576993830,5cyclictest1-21systemd08:15:020
2264576993830,5cyclictest1-21systemd08:15:010
226458199378,3cyclictest0-21swapper/108:40:281
226458199372,9cyclictest2314540-21ntp_states09:30:251
226458199372,9cyclictest2314540-21ntp_states09:30:251
226458199371,9cyclictest2368270-21ntp_states12:05:231
226458199371,9cyclictest2352476-21diskstats11:20:161
226458199371,9cyclictest2328221-21/usr/sbin/munin10:10:181
226458199371,9cyclictest2268886-21diskstats07:20:151
226458199371,8cyclictest2298765-21ntp_states08:45:231
226458199371,8cyclictest2290360-21which08:20:241
226458199371,8cyclictest2276195-21/usr/sbin/munin07:40:211
2264581993716,18cyclictest2294127-21unixbench_singl08:30:261
226458199371,10cyclictest2270605-21fschecks_count07:25:171
2264576993729,4cyclictest0-21swapper/012:05:300
2264576993729,4cyclictest0-21swapper/008:50:010
2264590993624,7cyclictest0-21swapper/308:15:283
2264590993624,7cyclictest0-21swapper/308:15:283
2264585993624,5cyclictest2276627-21grep07:40:242
226458199363,5cyclictest2286146-21diskstats08:10:171
226458199362,9cyclictest2274323-21/usr/sbin/munin07:35:211
226458199361,9cyclictest2326700-21ntp_states10:05:231
226458199361,8cyclictest2323058-21ntp_states09:55:221
226458199361,8cyclictest2305389-21fschecks_count09:05:181
226458199361,7cyclictest2347421-21grep11:05:191
226458199361,7cyclictest2345280-21sh11:00:001
226458199361,7cyclictest2345280-21sh11:00:001
226458199361,7cyclictest2304510-21grep09:00:261
226458199361,7cyclictest2300929-21unixbench_singl08:50:291
226458199361,6cyclictest2370037-21uname12:10:241
226458199361,10cyclictest2294768-21/usr/sbin/munin08:35:171
2264576993630,3cyclictest0-21swapper/010:40:000
2264576993626,6cyclictest2318399-21grep09:40:270
2264576993626,6cyclictest2318399-21grep09:40:270
2264590993527,4cyclictest0-21swapper/308:00:013
2264585993528,4cyclictest2347009-21cut11:05:002
2264585993527,4cyclictest0-21swapper/208:10:182
2264585993524,7cyclictest0-21swapper/209:45:182
226458199359,5cyclictest231ktimers/107:30:141
226458199355,4cyclictest2337179-21fschecks_time10:35:181
226458199352,7cyclictest630-21snmpd12:23:051
226458199351,9cyclictest2310239-21taskset09:19:161
226458199351,8cyclictest2320786-21/usr/sbin/munin09:50:151
226458199351,6cyclictest2350847-21fschecks_time11:15:171
226458199351,5cyclictest2317599-21grep09:40:181
226458199351,5cyclictest2317599-21grep09:40:181
2264576993529,3cyclictest0-21swapper/009:55:010
2264576993525,6cyclictest2334434-21grep10:25:260
2264590993427,4cyclictest2331211-21munin-plugin-st10:20:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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