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2024-04-27 - 02:52

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #3

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 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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot3s.osadl.org (updated Fri Apr 26, 2024 12:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6544419912347,12cyclictest0-21swapper/008:10:010
654441999680,10cyclictest0-21swapper/010:15:010
65444199802,75cyclictest0-21swapper/009:40:020
654441997874,2cyclictest0-21swapper/011:25:020
654441997369,2cyclictest0-21swapper/012:20:030
654441997369,2cyclictest0-21swapper/010:00:020
65444199711,66cyclictest0-21swapper/011:20:030
654441996863,3cyclictest0-21swapper/009:30:020
65444199678,30cyclictest664945-21cat10:30:020
654441996760,4cyclictest657481-1kworker/0:1H08:15:030
654441996627,11cyclictest0-21swapper/007:15:010
654441996615,17cyclictest666531-21wc11:00:020
65444199658,18cyclictest656281-21ls07:45:010
654441996459,3cyclictest0-21swapper/010:50:010
654441996211,16cyclictest657126-21date08:00:020
65444199617,45cyclictest0-21swapper/007:39:590
65444199608,19cyclictest669339-21sed11:55:010
654441995955,2cyclictest0-21swapper/011:45:020
654441995918,7cyclictest12-21ksoftirqd/012:10:010
654451995839,14cyclictest235-21systemd-journal09:20:002
654441995852,4cyclictest0-21swapper/009:25:020
65445199577,33cyclictest235-21systemd-journal11:05:022
65445199577,33cyclictest235-21systemd-journal11:05:012
654441995613,31cyclictest667111-21munin-run11:14:590
654446995515,6cyclictest131rcu_preempt07:55:001
654441995535,15cyclictest235-21systemd-journal09:20:010
65444199552,46cyclictest654904-21sendmail07:20:000
65444699541,37cyclictest653966-21kworker/u8:207:50:021
65444699541,37cyclictest653966-21kworker/u8:207:50:011
654451995312,6cyclictest131rcu_preempt09:50:012
654441995310,18cyclictest668130-21sshd11:32:500
654441995247,3cyclictest0-21swapper/010:00:010
654441995211,10cyclictest12-21ksoftirqd/009:25:010
65445699511,5cyclictest131rcu_preempt08:35:013
654451995134,12cyclictest274-21dbus-daemon07:45:002
654451995115,6cyclictest131rcu_preempt11:20:012
654441995143,4cyclictest16850irq/224-800000011:10:010
654441995133,12cyclictest304-21in:imuxsock11:39:590
654441995132,13cyclictest1-21systemd10:25:000
654441995131,16cyclictest235-21systemd-journal10:40:030
654441995130,13cyclictest235-21systemd-journal08:25:000
654441995127,5cyclictest658799-21munin-run08:35:010
654441995125,16cyclictest235-21systemd-journal10:20:010
654441995125,16cyclictest235-21systemd-journal10:20:010
654451995042,5cyclictest661946-21kworker/2:210:07:012
654451995041,6cyclictest667913-21kworker/2:011:39:552
654441995041,4cyclictest0-21swapper/012:20:020
654441995041,4cyclictest0-21swapper/012:20:020
654441995030,16cyclictest665273-21sshd10:39:490
654441995013,8cyclictest12-21ksoftirqd/008:50:020
65445199497,7cyclictest30-21ksoftirqd/212:39:492
654451994941,5cyclictest667913-21kworker/2:012:31:342
654451994941,5cyclictest667913-21kworker/2:011:46:592
654451994941,5cyclictest663247-21kworker/2:110:50:532
654451994941,5cyclictest663247-21kworker/2:110:43:302
654451994941,5cyclictest653674-21kworker/2:008:35:002
654451994938,7cyclictest30-21ksoftirqd/208:40:002
654451994937,8cyclictest30-21ksoftirqd/207:15:022
65444699492,9cyclictest131rcu_preempt08:30:011
654441994928,11cyclictest304-21in:imuxsock10:55:010
654456994826,11cyclictest655253-21cat07:25:023
65445699481,8cyclictest663216-21modprobe10:00:003
65445699481,7cyclictest37-21ksoftirqd/309:10:003
65445199487,9cyclictest30-21ksoftirqd/211:15:012
654451994841,4cyclictest667913-21kworker/2:012:08:162
654451994841,4cyclictest661946-21kworker/2:210:56:072
654451994841,4cyclictest653674-21kworker/2:007:22:572
654451994840,5cyclictest667913-21kworker/2:012:20:022
654451994840,5cyclictest667913-21kworker/2:011:58:472
654451994840,5cyclictest667913-21kworker/2:011:52:322
654451994840,5cyclictest663247-21kworker/2:110:28:172
654451994840,5cyclictest663247-21kworker/2:110:19:062
654451994840,5cyclictest663247-21kworker/2:110:19:052
654451994840,5cyclictest661946-21kworker/2:210:03:572
654451994840,5cyclictest661946-21kworker/2:209:40:032
654451994840,5cyclictest658073-21kworker/2:309:11:222
654451994840,5cyclictest653674-21kworker/2:009:50:292
654451994840,5cyclictest653674-21kworker/2:009:50:282
654451994840,5cyclictest653674-21kworker/2:009:29:232
654451994840,5cyclictest653674-21kworker/2:008:45:112
654451994840,5cyclictest653674-21kworker/2:008:40:022
654451994840,5cyclictest653674-21kworker/2:008:15:142
654451994840,5cyclictest653674-21kworker/2:008:02:072
654451994840,5cyclictest653674-21kworker/2:008:02:062
654451994840,5cyclictest653674-21kworker/2:007:35:302
654451994839,6cyclictest663247-21kworker/2:110:35:412
654451994839,5cyclictest667913-21kworker/2:012:16:252
654451994839,5cyclictest667913-21kworker/2:012:16:242
654451994838,6cyclictest667913-21kworker/2:012:11:402
654451994838,6cyclictest667913-21kworker/2:012:03:312
654451994838,6cyclictest667913-21kworker/2:012:03:312
654451994812,5cyclictest131rcu_preempt09:40:012
65444699489,6cyclictest131rcu_preempt08:40:001
65444699489,5cyclictest131rcu_preempt11:40:011
654446994831,13cyclictest274-21dbus-daemon12:30:011
65444699482,27cyclictest671279-21kworker/u8:212:40:011
65445699471,41cyclictest235-21systemd-journal08:13:493
654451994740,4cyclictest667913-21kworker/2:011:42:482
654451994740,4cyclictest663247-21kworker/2:110:20:242
654451994740,4cyclictest653674-21kworker/2:009:05:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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