[sf-lug] tar Workaround for the Ubuntu "slow copy" Problem

[Ron]

Ken Shaffer wrote on 2025-08-03 15:16:

> sudo nocache tar c --record-size=500M -f- . |(cd /mnt/a2; sudo tar -xpBf -)
> 
> The "nocache" prevents the input files from being uffered, saving the 
> system buffers for output.

Thanks for this Ken, I didn't know about `nocache` nor /proc/buddyinfo.


Strangely, I don't have anything under `man proc_buddyinfo`, but it's 
under `man proc`; strange because I see it in a web search, i.e.:

https://www.man7.org/linux/man-pages/man5/proc_buddyinfo.5.html


And `man` just cannot find anything:

man -k buddyinfo
buddyinfo: nothing appropriate.