2022-01-31 16:00:00 +0200 +0200
As previously reported, we have
successfully completed and tested the switch to a pure
Debian 11 based ARMv8 (arm64, aarch64)
Compared to the Raspberry Pi OS, which relies on an outdated ARMv6 build for compatibility reasons, the performance has increased by 30% on average.
Furthermore, we can now use special CPU functions
ARM NEON SIMD, which have great performance
advantages especially when processing streams
(compression, encryption). Hardware virtualization
support is now also possible.
By the way, we could not determine a higher RAM consumption, as often assumed.
The ARMv8 update for the Github projects has not been released yet, but will follow soon.
In the process of the operating system
change we have also changed the basic file
system to BTRFS.
This change enables full live snapshot support, this means that you can save, backup and reset the state of the current system at any time.
Another interesting BTRFS feature we enabled is
transparent LZO compression.
Since the I/O controller of the Raspberry Pi is comparatively slow compared to the CPU, using it increases the sequential R/W speed by up to 400% and the random R/W by up to 200%. The prerequisite for this is that the data can be compressed, already compressed data and particularly small files are automatically optimized.
Furthermore we have started to
adapt and finalize our openHAB addons to the latest
openHAB 3.2 release.
These will be published as soon as we have finalized our RESTful APIs to avoid unnecessary rework.
Another positive news we can give
regarding our prototypes, with the receipt and
verification of the last mainboard revision, the
hardware development phase is considered
From now on only minor production relevant corrections are planned and of course future module extensions.
As soon as the pre-series production is completed, there will be nothing standing in the way of a beta.
One of the next steps is the testing of the platform according to the CE/FCC standards. Since the radio components are already certified and we have developed according to EMC guidelines from the beginning, we hope for a smooth process.
Last there is a rather bad news
regarding the expected availability of the
Like all manufacturers in the electronics industry, we are struggling with major problems in component availability, especially as a small manufacturer, the prices, which have increased tenfold in some cases, are unmanageable.
Unfortunately, the situation has become even worse since last year and series production (the pre-series has already been completed) will probably not be possible until the second half of the year.