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2024-04-25 - 17:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #6

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 rackbslot6s.osadl.org (updated Thu Apr 25, 2024 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2620121280,4sleep09-21ksoftirqd/012:12:280
32725911060,1ptp4l241ktimersoftd/115:26:361
32725911040,2ptp4l241ktimersoftd/113:31:271
32725911030,3ptp4l241ktimersoftd/112:16:121
32725911010,2ptp4l241ktimersoftd/116:18:171
280972990,8sleep12789999cyclictest16:38:521
3272591890,1ptp4l241ktimersoftd/116:36:561
3272591860,2ptp4l241ktimersoftd/114:57:581
3272591860,1ptp4l241ktimersoftd/113:08:081
3272591820,2ptp4l241ktimersoftd/117:12:311
3272591820,2ptp4l241ktimersoftd/116:10:531
3272591760,3ptp4l23522-21kworker/1:015:07:301
3272591710,3ptp4l23522-21kworker/1:014:41:131
3272591700,3ptp4l23522-21kworker/1:012:42:401
3272591680,3ptp4l23522-21kworker/1:014:49:481
3272591680,19ptp4l9325-21kworker/1:217:18:241
3272591630,1ptp4l241ktimersoftd/117:43:271
3272591560,20ptp4l23522-21kworker/1:012:52:451
3272591560,20ptp4l23522-21kworker/1:012:52:451
2789899564,12cyclictest9163-21users15:32:560
3272591550,3ptp4l7869-21kworker/1:116:12:391
2789999559,5cyclictest25-21ksoftirqd/116:57:371
2789899555,12cyclictest3833-21snmp_o5powerctl12:32:510
2789899552,22cyclictest4721-21diskstats13:52:300
438291540,3getstats0-21swapper/115:33:401
3272591540,3ptp4l7869-21kworker/1:116:03:521
3272591540,1ptp4l241ktimersoftd/117:02:511
2789899545,13cyclictest15177-21apt-get14:17:260
2789899544,12cyclictest32007-21snmp_o5powerctl14:37:480
3272591530,7ptp4l241ktimersoftd/117:24:041
3272591530,7ptp4l241ktimersoftd/117:24:041
3272591530,4ptp4l7869-21kworker/1:116:00:431
3272591530,4ptp4l23522-21kworker/1:013:20:261
3272591530,3ptp4l9325-21kworker/1:216:56:171
2789899535,12cyclictest2201-21apt-get13:47:240
3272591520,1ptp4l241ktimersoftd/114:52:341
2789899527,19cyclictest0-21swapper/015:22:430
2789899525,12cyclictest28280-21apt-get13:32:260
2789899525,12cyclictest28280-21apt-get13:32:260
2789899523,14cyclictest5655-21apt-get16:12:290
2789899522,7cyclictest19480-21hddtemp_smartct14:22:320
3272591510,3ptp4l23522-21kworker/1:014:16:341
2789999512,5cyclictest121rcu_preempt12:17:381
2789899515,13cyclictest32162-21apt-get17:27:360
2789899515,12cyclictest9816-21apt-get16:17:280
3272591500,1ptp4l241ktimersoftd/117:35:581
3272591500,1ptp4l241ktimersoftd/115:39:231
3272591500,1ptp4l241ktimersoftd/115:16:001
3272591500,1ptp4l241ktimersoftd/114:02:341
2789899505,12cyclictest2180-21apt-get14:42:280
2789899505,11cyclictest22944-21apt-get14:27:240
3272591490,1ptp4l241ktimersoftd/117:38:121
3272591490,1ptp4l241ktimersoftd/116:44:271
3272591490,1ptp4l241ktimersoftd/116:29:551
3272591490,1ptp4l241ktimersoftd/116:24:151
3272591490,1ptp4l241ktimersoftd/115:53:481
3272591490,1ptp4l241ktimersoftd/115:42:241
3272591490,1ptp4l241ktimersoftd/115:29:451
3272591490,1ptp4l241ktimersoftd/115:06:281
3272591490,1ptp4l241ktimersoftd/114:24:321
3272591490,1ptp4l241ktimersoftd/114:21:291
3272591490,1ptp4l241ktimersoftd/113:32:471
3272591490,1ptp4l241ktimersoftd/113:32:471
3272591480,1ptp4l241ktimersoftd/117:28:211
3272591480,1ptp4l241ktimersoftd/117:08:441
3272591480,1ptp4l241ktimersoftd/116:52:011
3272591480,1ptp4l241ktimersoftd/115:50:201
3272591480,1ptp4l241ktimersoftd/114:46:041
3272591480,1ptp4l241ktimersoftd/114:33:191
3272591480,1ptp4l241ktimersoftd/114:27:311
3272591480,1ptp4l241ktimersoftd/113:22:391
3272591480,1ptp4l241ktimersoftd/112:36:061
27898994710,9cyclictest8706-21sort17:37:580
3272591460,1ptp4l241ktimersoftd/115:18:411
3272591460,1ptp4l241ktimersoftd/112:23:021
3272591450,1ptp4l241ktimersoftd/114:07:271
49862440,4sleep00-21swapper/015:27:490
3272591440,2ptp4l241ktimersoftd/113:57:541
3272591440,1ptp4l241ktimersoftd/112:50:241
3272591440,1ptp4l241ktimersoftd/112:40:441
3272591430,1ptp4l241ktimersoftd/113:50:131
3272591430,1ptp4l241ktimersoftd/113:02:581
3272591420,1ptp4l241ktimersoftd/113:40:451
3272591420,1ptp4l241ktimersoftd/112:27:281
3272591410,1ptp4l241ktimersoftd/113:44:261
3272591410,1ptp4l241ktimersoftd/113:16:541
2789899415,4cyclictest121rcu_preempt16:26:570
2789899405,4cyclictest121rcu_preempt16:11:270
2789999394,4cyclictest121rcu_preempt13:01:261
2789899391,7cyclictest14877-21diskmemload17:32:430
2789899385,4cyclictest121rcu_preempt15:45:290
27898993815,18cyclictest1604-21sh16:07:000
3272591370,1ptp4l241ktimersoftd/113:54:581
210852370,8sleep02789899cyclictest17:12:330
2789899364,9cyclictest121rcu_preempt15:53:000
27898993612,18cyclictest575-21dbus-daemon12:27:120
282432350,7sleep02789899cyclictest12:17:250
281892351,3sleep00-21swapper/017:22:270
281892351,3sleep00-21swapper/017:22:270
2789899355,4cyclictest121rcu_preempt14:15:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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