On Friday 07 February 2020 03:55:32 Andrei POPESCU wrote: > On Vi, 07 feb 20, 03:12:08, Gene Heskett wrote: > > Which tells me its the poor prolonged write speeds of the ssd's that > > are the main contributors to the slow big files problem. Not much I > > can do about that. It is what it is. > > If you're into testing you could try transferring to/from RAM (e.g. a > tmpfs filesystem), different external storage, internal SD/eMMC, etc. > > Just use a big enough compressed file to get meaningful results. > That isn't too practical, the biggest tmpfs mount is less than useable. its only a 2gig pi4. You can tell when its using swap, a make -j3 slows down visibly when building a kernel, same with LinuxCNC when compiling the rs274 interpretor for it. If I left it with only the 100 meg swapfile, it will OOM and kill the compile. But with 10GB of swap, it just keeps on trucking.
> Kind regards, > Andrei You too Andrei, thanks. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene>
