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discomfitor
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PostPosted: Sat Nov 13, 2010 11:33 am    Post subject: Reply with quote

oh wow this thread is old
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skellr
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PostPosted: Sat Nov 13, 2010 1:25 pm    Post subject: Reply with quote

You know your box is fast when it doesn't have time to break.
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Marctraider
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PostPosted: Wed Nov 24, 2010 5:15 pm    Post subject: Reply with quote

lol indeed very old.

I must laugh about this ricer shit and all, however. I must add to the 'hdparm' section that I actually had some speed optimization from a certain parameter which was probably disabled in the BIOS on my old Toshiba (Pentium) laptop which I couldn't change there. It sped up my harddrive by almost half the speed. Since the IDE controller only worked in Programmed Input/Output (PIO) mode i needed all speed i could get. (were it to be 30-40% at least).

I had to enable the 32-bit transfer mode. This seemly wasnt enabled by default at that time by kernel.

My write/read speed went from 3~MB/s to like 6MB/s.

But it was not the processor which was holding me down. It was primarily the harddisk/harddisk space and memory usage which I had to 'optimize'. (-Os for the win!) lol

Now thats some speed increase dont you think? hehe.
But seriously, at a time i could consider myself a beginning ricer. But I stopped with it as soon as I got a faster computer. LOL.
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Yamakuzure
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PostPosted: Thu Nov 25, 2010 10:49 am    Post subject: Reply with quote

I bet the "ricing" discussion will have a very noisy "comeback" when GCC-4.5 is marked stable and people realize what Graphite can do. ;)
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Ormaaj
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PostPosted: Mon Nov 29, 2010 7:30 am    Post subject: Reply with quote

Yamakuzure wrote:
I bet the "ricing" discussion will have a very noisy "comeback" when GCC-4.5 is marked stable and people realize what Graphite can do. ;)
Graphite has been around since 4.4 and you still have to explicitly enable the flags as of 4.5 AFAICT.

This box:

CFLAGS="-march=native -O3 -mmmx -floop-interchange -floop-strip-mine -floop-block -pipe"

Makes it look ricey.
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Yamakuzure
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PostPosted: Thu Dec 09, 2010 3:07 pm    Post subject: Reply with quote

Of course. But I was merely thinking of:
Code:
CFLAGS="-march=core2 -O2 -pipe -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -mtune=core2 -mfpmath=sse  -ftree-vectorize -mno-push-args -floop-interchange -fgraphite-identity -ftree-loop-distribution -floop-parallelize-all -floop-strip-mine -floop-block -ftree-parallelize-loops=5"
CXXFLAGS="${CFLAGS}"
;)
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