@nebulon said in Increase the RAM of the demo machine:
@LoudLemur and @robi just to add here the option to run hdparm -Tt /dev/<youdisk>, which will measure a few things for disk I/O.
That requires root and for hdparm to actually be available and installed.
Hence I use:
dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync ; rm /tmp/test1.img