Re: [Bug-tar] make your tar archive even more anonymous

[Joerg Schilling]

Tim Kientzle <address@hidden> wrote:

> The option you propose can have unpleasant implications
> for tar's memory requirements.  Sorting each directory
> requires first reading all the items in that directory
> into memory.

Star reads all directory entries at once since 10 years after I did some 
research on memory consumption.

It turns out, that if you are _really_ _low_ with memory, it is better to use 
the 35 year old aproach (use star -lowmem to switch to that method), but the 
memory consumption compared to the fact that star uses a FIFO (by default 1MB 
on very old machines, 4MB on Linux due to problems with mmap() on Linux and 8MB 
on other systems) makes memory consumption appearance a bit more relative now.

Note that for incremental backups, we need to read all directory entries for a 
specific directory at once anyway.....

Jörg

-- 
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