[BusyBox] [patch] micro-bunzip version 3. :)
Manuel Novoa III
mjn3 at codepoet.org
Tue Oct 21 05:43:47 UTC 2003
New version is attached. I did not bother integrating it into
busybox, but the necessary read interface is there.
On Fri, Oct 17, 2003 at 08:01:27PM -0600, Erik Andersen wrote:
> On Thu Oct 16, 2003 at 09:01:52PM -0600, Manuel Novoa III wrote:
> > Anyway, on my machine, decompressing linux-2.6.0-test7.tar.bz2
> > to /dev/null gave the following times:
> > bunzip-3.c bzcat (system) bunzip-3.c (patched)
> > real 0m24.420s 0m22.725s 0m20.701s
> > user 0m23.930s 0m22.170s 0m20.180s
> > sys 0m0.070s 0m0.080s 0m0.140s
user time now down to about 17.6s.
Some of the streamlining optimizations done in read_bunzip() work
for x86 (with its limited register set) but could hurt on risc.
However, I tested on arm and bunzip-4.c was about 10% faster than
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