Location of .c2 files Raspberry Pi >> tmpfs in RAM

[PE3ES / F4VTQ]

As all these files are in .config they are as I imagine on the SD card. As these files are written per digimod decoder per band in a 15 second to 2 minute period this adds a lot of tear on the SD card.

Having them in a windows PC in a harddisk tmp area is not too bad but for a Raspberry Pi it would be preferable to have them on a tmpfs dir in ram.

Could that be added to the Raspberry Pi preferred way of working Alan?

[ahop...@googlemail.com]

Hi,

that is a good point, I'll think about adding a configurable location for this. You might be able to do it with a symlink for the wsprd,ft8 etc directories pointed to a ramdisk.

I have on my todo list to make the internal level 0 decoders not even create the temp files.  

73 Alan M0NNB

[Thomas Beiderwieden]

as this is a common problem with SD-Cards on a raspberry, I have configured mine to delay writing everything. 

/etc/sysctl.d/07-dirty.conf   should contain:

vm.dirty_ratio = 40
vm.dirty_background_ratio = 30
vm.dirty_expire_centisecs = 360000 

In my understanding, that reduces writing to once per hour. Disadvantage, you will loose data, if you have a power outage and no UPS or a kernel halt. But on most of my systems which run 24/7, that is no big issue.