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INDI Library v1.8.1 Released (09 Sep 2019)

Monthly maintenance release INDI v1.8.1

RPi4 performance compared to Odroid-N2

1 month 3 weeks ago
jerry
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RPi4 performance compared to Odroid-N2 #43863
A non-scientific test:

Odroid-N2 using AstroPi3 setup
Raspberry Pi4 using Stellarmate
RemoteDesktop into these using NoMachine: No debugging enabled, Storage to the internal (Rpi4 or Odroid-N2) storage,

1) Capture dummy 1 sec exposure Nikon Z7 (90 MB fits), 1 sec exposure QHY5Ill-M (1.2MB fits) as 2 jobs in the Capture queue,
2) Let the fits previewer display each image as it is captured.

So with the RPi4 KStars Build: 2019-09-08T20:04_46Z (oops, not the latest) about 21 sec.
and the Odroid-N2 Kstars Build: 2019-09-24T09:50:13Z about 14 sec.

The difference could be attributed to:
Kstars version (I wouldn't think so)
the number of CPU cores/speed
the speed of the storage device (Rpi4 -> SD, Odroid-N2 -> eMMC)

Memory did not appear to be an issue.
If anyone else has both devices, it would be nice to see if this is reproducable.

Cheers

10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS on RPI4 using kstars-bleeding and Kstars on Odroid-N2.

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1 month 3 weeks ago
Ihoujin
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RPi4 performance compared to Odroid-N2 #43873
50% faster on the Odroid N2. Impressive. It might be due to the EMMC. What memory card are you using? Could you try this test again with SD overclocking on the RPi4 in the boot config?
dtparam=sd_overclock=84
Thank you.

INDI/KStars on Raspberry Pi 3B+
Lubuntu 16.04
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.

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1 month 3 weeks ago
jerry
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RPi4 performance compared to Odroid-N2 #43874
I haven't tried overclocking the RPi4, but I just tried writing to a SD card on the Odroid-N2 -> about 19 sec.

10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS on RPI4 using kstars-bleeding and Kstars on Odroid-N2.

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