Re: stat very inefficient

From: Nigel Rantor
Date: Thu Jul 29 2004 - 06:44:12 EST


David S. Miller wrote:
On Wed, 28 Jul 2004 17:08:37 -0700
Chris Wedgwood <cw@xxxxxxxx> wrote:


Just How bad is it for you? I just tested stat on my crapbox and for
a short path 1M stats takes 0.5s and for a longer path (30 bytes or
so) 2.8s.


Run "time find . -type f" on the kernel tree, both before and
after removing the third unnecessary copy. Many machines sit all
day and stat files.

P2 350MHz 256Mb RAM circa 1998

bash$ time find . -type f

gives

real 0m16.142s
user 0m0.432s
sys 0m2.893s

I'd be interested to see what machine you have that takes all day.

N
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/