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2022-08-08 - 19:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, 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 
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ARM TI AM3354 @800 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #9, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 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 alll highest latencies:
System rack9slot8s.osadl.org (updated Mon Aug 08, 2022 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
820505090,0irq/46-4a10000010742-21kworker/0:107:05:110
82150940,0irq/47-4a1000008599-21ntp_states12:01:450
82150940,0irq/47-4a1000002204-21idleruntime-cro08:15:020
82150920,0irq/47-4a10000029497-21ntp_states07:56:350
82150920,0irq/47-4a10000019221-21ssh10:15:490
82150920,0irq/47-4a10000017038-21ssh11:15:310
82050920,0irq/46-4a10000012343-21apt-get08:50:150
2484429210,0sleep024848-21ssh12:34:340
82150910,0irq/47-4a10000023413-21ssh09:20:290
82150910,0irq/47-4a10000017594-21kworker/u2:009:11:000
82150900,0irq/47-4a10000026249-21ssh11:32:460
82150900,0irq/47-4a10000025848-21apt-get07:45:150
82150900,0irq/47-4a10000016339-21ssh10:10:160
82150900,0irq/47-4a10000012028-21df11:05:380
82150890,0irq/47-4a10000027793-21runrttasks07:51:140
82150890,0irq/47-4a10000017935-21diskmemload10:55:400
82150890,0irq/47-4a10000017935-21diskmemload09:35:430
82150890,0irq/47-4a10000015206-21switchtime11:11:160
82150890,0irq/47-4a10000011843-21sshd08:47:110
82050890,0irq/46-4a10000030666-21wc11:41:200
82050890,0irq/46-4a10000017647-21seq09:07:500
82050890,0irq/46-4a10000015825-21modprobe10:09:100
425528911,0sleep04243-21ntp_states09:46:090
82150880,0irq/47-4a1000004964-21ssh10:51:150
82150880,0irq/47-4a10000032437-21apt-get11:45:190
82150880,0irq/47-4a10000028576-21df09:30:350
82150880,0irq/47-4a1000002844-21ssh09:43:180
82150880,0irq/47-4a10000024424-21/usr/sbin/munin07:40:280
82150880,0irq/47-4a10000024010-21/usr/sbin/munin10:26:160
82150880,0irq/47-4a10000017935-21diskmemload10:31:090
82150880,0irq/47-4a10000011121-21sendmail-msp10:00:050
82050880,0irq/46-4a10000027860-21ntp_states11:36:100
82050880,0irq/46-4a10000013768-21seq08:55:120
82050880,0irq/46-4a10000011727-21memory10:01:020
82050880,0irq/46-4a10000010921-21seq12:06:090
82150870,0irq/47-4a1000005354-21sh11:55:360
82150870,0irq/47-4a1000005214-21/usr/sbin/munin08:25:290
82150870,0irq/47-4a1000003666-21lockfile-create08:20:030
82150870,0irq/47-4a10000026157-21rm09:25:470
82150870,0irq/47-4a1000002597-21rm11:50:140
82150870,0irq/47-4a10000022791-21awk12:30:040
82150870,0irq/47-4a10000022203-21ssh11:25:310
82150870,0irq/47-4a10000021872-21ssh09:16:390
82150870,0irq/47-4a10000018588-21sendmail-msp07:20:020
82150870,0irq/47-4a10000017935-21diskmemload09:53:590
82150870,0irq/47-4a10000017210-21snmpd11:20:280
82150870,0irq/47-4a10000011294-21ssh11:04:060
82150860,0irq/47-4a1000009509-21apt-get08:40:190
82150860,0irq/47-4a1000008449-21ntp_states08:35:510
82150860,0irq/47-4a10000029275-21df10:35:390
82150860,0irq/47-4a10000023273-21/usr/sbin/munin07:35:460
82150860,0irq/47-4a10000017935-21diskmemload12:21:350
82150860,0irq/47-4a10000015983-21ssh12:16:040
82150860,0irq/47-4a10000014621-21rm12:13:170
82150850,0irq/47-4a100000742-21idleruntime-cro08:10:020
82150850,0irq/47-4a100000315-21ssh10:42:010
82150850,0irq/47-4a10000025200-21ssh12:35:240
82150850,0irq/47-4a10000023382-21ssh10:23:570
82150850,0irq/47-4a10000019729-21kworker/u2:307:25:450
82150850,0irq/47-4a10000018133-21kworker/u2:507:20:310
82150840,0irq/47-4a10000029505-21kworker/u2:708:00:570
82150840,0irq/47-4a1000002808-21ssh10:46:400
82150840,0irq/47-4a10000021936-21ntp_states07:30:480
82150830,0irq/47-4a1000004033-21latency08:20:330
82150830,0irq/47-4a1000003271-21kworker/u2:008:30:360
82150830,0irq/47-4a10000015489-21cpuspeed07:10:220
82050830,0irq/46-4a10000015381-21if_eth009:00:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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