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2024-04-28 - 00:00

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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 rackeslot8s.osadl.org (updated Sat Apr 27, 2024 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
734249993224,7cyclictest947430-21sh10:00:003
734249992912,7cyclictest928374-21kthreadcore09:45:193
734247992823,3cyclictest1071969-21cron11:30:002
73424999275,10cyclictest964696-21cut10:10:203
73424999275,10cyclictest1143921-21cat12:20:183
734249992617,8cyclictest506-21systemd-logind11:55:013
73424999255,10cyclictest836601-21grep08:30:273
73424999254,9cyclictest1092874-21kworker/u8:4+nfsiod12:35:123
73424999250,12cyclictest872570-21latency_hist09:05:023
734242992513,10cyclictest0-21swapper/007:40:000
73424999248,7cyclictest0-21swapper/308:20:193
73424999243,10cyclictest802935-21cut08:05:183
73424999240,13cyclictest852166-21cut08:45:233
73424999240,13cyclictest1006506-21cut10:40:223
73424999240,12cyclictest828121-21kthreadcore08:25:223
73424999240,12cyclictest1149403-21sed12:25:183
73424999240,12cyclictest1025666-21grep10:55:183
73424999240,11cyclictest1021685-21ntpq10:50:253
734249992314,8cyclictest1116703-21kthreadcore12:00:183
73424999230,17cyclictest940471-21taskset09:54:543
73424999230,12cyclictest975809-21tune2fs10:20:133
73424999230,12cyclictest912084-21chrt09:32:063
73424999230,12cyclictest884509-21taskset09:11:313
73424999230,12cyclictest778271-21basename07:45:143
73424999230,11cyclictest885712-21/usr/sbin/munin09:15:233
73424999230,11cyclictest847156-21grep08:40:193
73424999230,11cyclictest800844-21python308:00:253
73424999230,11cyclictest739-21runrttasks10:45:093
73424999230,11cyclictest739-21runrttasks10:45:093
73424999230,11cyclictest1124753-21cut12:05:233
73424999230,11cyclictest1079343-21taskset11:35:033
73424999230,11cyclictest1031397-21sed11:00:153
734247992320,2cyclictest954551-21cron10:05:002
734244992320,2cyclictest975266-21sh10:20:001
73424999225,9cyclictest739-21runrttasks11:44:043
73424999225,8cyclictest1135548-21irqrtprio12:15:153
73424999220,11cyclictest769704-21cut07:35:193
73424999220,11cyclictest1097422-21cut11:45:233
73424999220,11cyclictest1065334-21ssh11:25:083
73424999220,11cyclictest1051002-21taskset11:13:473
73424999220,10cyclictest913855-21sed09:35:183
73424999220,10cyclictest760008-21basename07:30:133
73424999220,10cyclictest1161295-21runrttasks12:33:183
73424999220,10cyclictest1113205-21runrttasks11:58:443
10625362220,1sleep21062540-21cut11:20:202
73424999213,8cyclictest920352-21gltestperf09:40:123
73424999210,9cyclictest892979-21ssh09:20:183
73424999210,9cyclictest774086-21cat07:40:213
73424999210,12cyclictest954519-21runrttasks10:04:583
73424999210,11cyclictest842181-21ntpq08:35:263
73424999210,11cyclictest737787-21kthreadcore07:10:143
73424999210,10cyclictest991636-21cut10:30:173
73424999210,10cyclictest864795-21kthreadcore08:55:193
73424999210,10cyclictest751115-21tr07:20:183
73424999210,10cyclictest1129099-21cut12:10:163
73424999210,10cyclictest1078893-21apt-config11:35:013
73424999210,10cyclictest1065273-21sed11:25:013
73424999210,10cyclictest1051649-21cat11:15:113
73424999210,10cyclictest1000882-21sed10:35:193
734244992117,3cyclictest1076967-21needreboot11:30:201
734242992117,3cyclictest790344-21gltestperf07:55:190
734242992117,3cyclictest593203-21kworker/u8:1-ext4-rsv-conversion09:00:000
73424999200,9cyclictest955043-21ssh10:05:153
73424999200,9cyclictest877852-21timerandwakeup09:05:253
73424999200,9cyclictest859209-21grep08:50:193
73424999200,9cyclictest784076-21chrt07:50:143
73424999200,9cyclictest754138-21acpi07:25:113
73424999200,10cyclictest987986-21taskset10:26:003
73424999200,10cyclictest1037669-21taskset11:05:133
734247992016,3cyclictest728-21sshd11:56:012
734247992016,2cyclictest1092838-21cron11:45:002
734244992017,2cyclictest848968-21latency_hist08:45:001
734242992015,3cyclictest0-21swapper/009:59:590
73424999190,10cyclictest739-21runrttasks07:57:203
734247991915,2cyclictest739-21runrttasks08:10:112
734247991915,2cyclictest739-21runrttasks08:10:102
734247991915,2cyclictest503-21polkitd07:15:012
734247991913,4cyclictest940942-21cut09:55:112
734244991915,3cyclictest831570-21cpuspeed_turbos08:30:121
734242991916,2cyclictest754604-21irqcore07:25:160
73424999180,8cyclictest904111-21ssh09:25:193
73424799185,6cyclictest885453-21munin-run09:15:002
734244991815,2cyclictest878479-21latency_hist09:10:011
734244991814,3cyclictest0-21swapper/109:59:591
734244991814,2cyclictest816679-21kthreadcore08:15:191
734242991815,2cyclictest919731-21munin-run09:40:000
734242991815,2cyclictest819374-21idleruntime-cro08:20:000
73424999170,9cyclictest739-21runrttasks08:13:553
73424999170,9cyclictest739-21runrttasks08:13:543
73424999170,8cyclictest739-21runrttasks10:15:273
734247991713,3cyclictest940630-21latency_hist09:55:002
734247991713,3cyclictest837708-21gltestperf08:35:182
734247991713,3cyclictest1155235-21cpuspeed_turbos12:30:122
734247991713,3cyclictest1029136-21unixbench_singl10:55:282
734247991712,3cyclictest0-21swapper/211:50:002
734244991714,2cyclictest1168670-21idleruntime-cro12:40:001
734244991714,2cyclictest0-21swapper/111:10:011
734244991713,3cyclictest843034-21sendmail08:40:011
73424999163,7cyclictest815907-21kthreadcore08:15:203
73424999160,7cyclictest0-21swapper/307:16:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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