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| author | Giuseppe Cavallaro <peppe.cavallaro@st.com> | 2009-12-14 16:45:49 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2009-12-19 01:52:46 +0100 |
| commit | c7138026b726c70a10951ea5f10dfeefbb08156f (patch) | |
| tree | 8a871919cb1d1b4a72531989007994031a6b0940 /libc/sysdeps/linux/common/getdents.c | |
| parent | 815b20190f58731ba4e6144a844fa3652c4870ac (diff) | |
| download | uClibc-alpine-c7138026b726c70a10951ea5f10dfeefbb08156f.tar.bz2 uClibc-alpine-c7138026b726c70a10951ea5f10dfeefbb08156f.tar.xz | |
sh: fix endianess and optimise the SH4 memcpy
This patch fixes the big-endian code and adds a new optimization
only for little endian mode.
This optimization is based on prefetching and 64bit data transfer via FPU.
Tests shows that
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Memory bandwidth | Gain
| sh4-300 | sh4-200
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512 bytes to 16KiB | ~20% | ~25%
from 32KiB to 16MiB | ~190% | ~5%
----------------------------------------
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/getdents.c')
0 files changed, 0 insertions, 0 deletions