Carlos, et al -- ...and then Carlos E. R. said... % % Once I timed writing very large file (ISO image) from hard disk to an ... % slowed up. The hypothesis we had is that the system cache memory was % used up. I did a few tries, and this is what worked best (faster): That's interesting. On my laptop I tend to run into the same SERIOUS slowdown whenever pulling data, either via the built-in SD card slot or the USB readers. % % dd if=ISO of=DEV bs=16M oflag=direct status=progress Oho! That is *very* interesting. % % This allows to write several sticks at the same time without big impact. % % Not your case, but the idea is that you can try things :-) Indeed :-) Now I wonder if it might actually be more productive to image the cards to files on the SSD and then mount *those* to xfer at leisure. I'm definitely going to have to benchmark that! % % You are reading from card to hard disk. If it is USB3 to rotating rust, % the limitation will be the write speed of the HD and you will hit it % easily, perhaps doing 150 MB/S. If the destination is m.2, who knows. Yep. If I do go with spinning secondary, it will be straight striping (no fault protection) across multiple devices (the more heads the better for all practical purposes). Thanks again & HANN :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt -- To unsubscribe, e-mail: opensuse-support+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-support+owner@opensuse.org