Re: [coreutils] [PATCH] fadvise: new module providing a simpler interface to posix_fadvise

[Pádraig Brady]

To get the same benefits noticed with `sort`
http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commit;h=dae35bac
I'm applying the same hint to all appropriate utils in the attached.

$ grep -l SEQUENTIAL *.c
base64.c
cat.c
cksum.c
comm.c
cut.c
expand.c
fmt.c
fold.c
join.c
md5sum.c
nl.c
paste.c
pr.c
ptx.c
shuf.c
sort.c
sum.c
tee.c
tr.c
tsort.c
unexpand.c
uniq.c
wc.c

Linux does quite well without this hint, and is getting better:
  http://article.gmane.org/gmane.linux.kernel.mm/43753
  http://lkml.org/lkml/2010/2/3/27
However I saw a small benefit on my system with
fast flash devices (around 5% less run time) and perhaps
the kernel can use this info in more sophisticated ways in future.

cheers,
Pádraig.

fadvise_use.diff
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