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2023-09-30 - 11:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

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 
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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.

Total number of samples: 50.5 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 highest latencies:
System rack5slot7s.osadl.org (updated Sat Sep 30, 2023 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3722224552214,96sleep00-21swapper19:09:270
38319916611,131cyclictest3216-21sort22:20:050
38319916517,121cyclictest24467-21/usr/sbin/munin21:10:310
38319916516,23cyclictest3808-21apt-get19:12:050
38319916215,123cyclictest15868-21apt-get20:20:060
38319916111,49cyclictest20598-21grep20:46:050
38319915917,118cyclictest20928-21apt-get20:50:320
38319915913,121cyclictest6248-21cat22:36:120
38319915816,116cyclictest29317-21apt-get21:40:250
38319915815,117cyclictest15868-21apt-get20:21:360
38319915813,116cyclictest32528-21/usr/sbin/munin22:00:310
38319915812,125cyclictest8399-21apt-get19:36:360
38319915722,105cyclictest25410-21df00:35:340
38319915715,25cyclictest26731-21head21:21:120
38319915642,92cyclictest18991-21irqstats23:55:510
38319915631,21cyclictest1667-21apt-get22:10:230
38319915621,107cyclictest25269-21apt-get21:15:250
38319915617,115cyclictest28589-21df21:35:310
38319915611,102cyclictest13629-21cstates20:05:290
38319915516,39cyclictest11671-21df23:10:310
38319915516,114cyclictest8027-21apt-get22:51:090
38319915515,39cyclictest23772-21df21:05:330
38319915515,22cyclictest19805-21grep20:41:060
38319915439,95cyclictest18954-21open_inodes20:36:020
38319915436,21cyclictest16962-21threads23:41:110
38319915417,26cyclictest27810-21/usr/sbin/munin21:30:440
38319915413,29cyclictest6808-21kworker/u2:1519:25:010
38319915333,22cyclictest11283-21grep23:06:100
38319915327,106cyclictest11946-21kworker/u2:220:00:000
38319915321,102cyclictest5010-21df_inode22:30:360
38319915312,25cyclictest30982-21cat21:50:310
38319915312,116cyclictest24322-21grep00:26:120
38319915312,116cyclictest22055-21apt-get20:55:370
38319915311,117cyclictest30535-21find21:46:050
38319915310,26cyclictest3300-21/usr/sbin/munin22:20:320
38319915310,117cyclictest13007-21sed23:16:140
38319915219,107cyclictest32411-21munin-run22:00:050
38319915216,114cyclictest17465-21memory23:45:540
38319915215,114cyclictest14674-21grep20:10:590
38319915213,28cyclictest18280-21cat20:31:080
38319915211,115cyclictest1479-21grep22:06:120
38319915119,27cyclictest7443-21diskstats22:45:450
38319915117,26cyclictest12769-21apt-get20:00:240
38319915115,29cyclictest10349-21apt-get19:45:210
38319915112,98cyclictest4803-21munin-run22:30:010
38319915112,23cyclictest20387-21munin-run00:05:000
38319915111,118cyclictest22290-21wc00:15:540
38319915111,118cyclictest10018-21mailstats19:41:130
38319915110,117cyclictest8067-21grep19:31:020
3831991509,39cyclictest11841-21apt19:55:010
38319915073,52cyclictest25203-21apt00:35:010
38319915042,86cyclictest9346-21kernelversion22:55:580
38319915022,102cyclictest20487-21apt-get00:05:320
38319915021,101cyclictest6906-21apt-get19:25:300
38319915012,29cyclictest5128-21open_inodes19:15:210
38319914928,98cyclictest15492-21apt23:35:000
38319914923,27cyclictest14104-21df_inode23:25:380
38319914922,20cyclictest11946-21kworker/u2:220:30:000
38319914921,25cyclictest15595-21apt-get23:35:260
38319914915,107cyclictest22877-21apt-get21:00:290
38319914913,23cyclictest21992-21sort00:15:030
38319914913,22cyclictest10633-21users23:01:180
38319914816,23cyclictest6528-21apt22:40:180
38319914725,21cyclictest27473-21cat21:26:130
38319914717,106cyclictest13308-21df_inode23:20:360
38319914611,111cyclictest22994-21wc00:20:330
38319914521,23cyclictest18676-21users23:51:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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