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2024-07-12 - 17:21

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 100 highest latencies:
System rack9slot4s (updated Thu Jul 11, 2024 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76539912351186,44cyclictest17047-21python07:45:340
76549911961164,27cyclictest12068-21munin-run07:35:011
61212662617,29sleep00-21swapper/007:20:160
74912562517,30sleep10-21swapper/107:23:541
765399211170,24cyclictest32295-21kworker/0:307:35:010
765499192187,3cyclictest0-21swapper/107:45:351
278742780,3sleep00-21swapper/012:30:430
240852540,2sleep024082-21grep09:30:300
7653994310,14cyclictest31911-21seq12:43:240
7654993917,8cyclictest22-21ksoftirqd/109:44:121
7654993917,6cyclictest22-21ksoftirqd/110:30:161
765399399,13cyclictest6204-21gdbus11:45:320
7654993817,7cyclictest22-21ksoftirqd/109:20:211
7654993817,7cyclictest22-21ksoftirqd/109:09:321
7654993816,7cyclictest22-21ksoftirqd/111:55:061
291162381,33sleep029149-21grep11:10:150
7654993715,8cyclictest22-21ksoftirqd/111:01:001
7653993723,11cyclictest3901-21/usr/sbin/munin08:35:390
7653993723,11cyclictest3901-21/usr/sbin/munin08:35:390
765499364,13cyclictest25909-21diskstats08:10:181
765499364,10cyclictest17583-21munin-run09:15:001
7654993614,7cyclictest22-21ksoftirqd/109:47:001
765399362,15cyclictest6516-21/usr/sbin/munin10:10:230
765399361,6cyclictest31331-21/usr/sbin/munin11:15:260
765399361,6cyclictest18031-21/usr/sbin/munin10:40:180
765399361,6cyclictest15250-21/usr/sbin/munin09:05:400
765399361,5cyclictest1861-21/usr/sbin/munin12:50:130
7653993612,6cyclictest24564-21/usr/sbin/munin08:05:280
7653993612,6cyclictest21485-21sh07:58:390
7654993511,9cyclictest29151-21fschecks_count11:10:161
765399359,6cyclictest22636-21taskset12:19:560
765399353,20cyclictest0-21swapper/008:34:090
765399353,17cyclictest0-21swapper/010:20:250
765399352,5cyclictest2675-21systemd-logind10:25:140
765399352,15cyclictest24014-21/usr/sbin/munin10:55:320
765399352,13cyclictest8628-21/usr/sbin/munin07:25:310
7653993519,12cyclictest21517-21basename09:25:120
765399351,6cyclictest8960-21/usr/sbin/munin10:15:340
765399351,6cyclictest1937-21cron09:58:010
765399351,6cyclictest17292-21/usr/sbin/munin12:05:140
765399351,6cyclictest13491-21/usr/sbin/munin11:55:120
765399351,5cyclictest28535-21/usr/sbin/munin08:15:410
765399351,5cyclictest23945-21/usr/sbin/munin12:20:390
765399351,17cyclictest11340-21/usr/sbin/munin08:55:380
765399351,16cyclictest2612-21sshd10:08:250
7653993510,6cyclictest31735-21fschecks_time08:25:230
124022351,30sleep112457-21/usr/sbin/munin09:00:191
765499341,10cyclictest3020-21runrttasks07:55:041
765399344,18cyclictest0-21swapper/011:41:150
765399343,17cyclictest0-21swapper/009:50:280
765399343,14cyclictest28754-21taskset09:42:570
765399342,15cyclictest29411-21/usr/sbin/munin09:45:170
765399342,13cyclictest4850-21/usr/sbin/munin08:40:140
765399341,6cyclictest19891-21cstates09:20:120
765399341,5cyclictest3822-21runrttasks10:01:460
765399341,5cyclictest12854-21/usr/sbin/munin07:35:220
765399341,18cyclictest0-21swapper/012:37:090
765399341,16cyclictest26106-21/usr/sbin/munin11:00:440
765399341,14cyclictest14062-21/usr/sbin/munin10:30:160
765399341,13cyclictest21759-21fschecks_time10:50:200
255382341,30sleep025254-21/usr/sbin/munin09:35:170
765499339,8cyclictest201rcuc/108:46:091
7654993310,8cyclictest18470-21vmstat12:05:461
765399333,19cyclictest0-21swapper/008:03:090
765399333,17cyclictest0-21swapper/009:10:200
765399333,17cyclictest0-21swapper/007:51:520
765399333,17cyclictest0-21swapper/007:51:510
765399333,16cyclictest0-21swapper/012:26:020
765399333,11cyclictest0-21swapper/011:31:110
765399331,5cyclictest15674-21taskset07:43:050
765399331,15cyclictest18229-21chrt09:15:220
765399331,14cyclictest20187-21/usr/sbin/munin12:10:370
765399331,13cyclictest9318-21grep08:50:380
765399331,12cyclictest866-21taskset11:20:260
765499329,9cyclictest29463-21aten_r4power_po08:20:111
765499329,8cyclictest28642-21sed08:15:421
765499328,5cyclictest40950irq/93-i91511:20:271
765499322,18cyclictest12349-21aten_r4power_vo07:35:111
7654993218,10cyclictest18713-21/usr/sbin/munin07:50:291
7654993218,10cyclictest18713-21/usr/sbin/munin07:50:281
7654993211,8cyclictest7651-21cyclictest08:27:351
7654993210,8cyclictest22-21ksoftirqd/111:17:111
7654993210,8cyclictest22-21ksoftirqd/108:52:571
765399323,16cyclictest0-21swapper/010:46:450
765399321,17cyclictest0-21swapper/011:07:540
262072321,5sleep10-21swapper/112:27:511
193502321,4sleep119352-21diskstats12:10:171
765499319,8cyclictest22-21ksoftirqd/108:36:001
765499319,8cyclictest22-21ksoftirqd/108:35:591
7654993110,5cyclictest0-21swapper/108:40:521
765399313,16cyclictest0-21swapper/008:25:000
765399313,14cyclictest0-21swapper/011:27:150
765399313,11cyclictest0-21swapper/008:12:160
765399311,15cyclictest11537-21cut11:50:110
157492311,5sleep10-21swapper/107:43:551
765499307,8cyclictest22-21ksoftirqd/110:46:091
765499306,5cyclictest81rcu_preempt10:15:281
765499302,9cyclictest2306-21irqstats12:50:251
765499302,7cyclictest24010-21ntp_states10:55:321
765499302,13cyclictest15945-21diskstats10:35:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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