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From: "Nitin Gupta" <nitingupta910@gmail.com>
To: "Daniel Hazelton" <dhazelton@enter.net>
Cc: "Satyam Sharma" <satyam.sharma@gmail.com>,
	"Richard Purdie" <richard@openedhand.com>,
	linux-kernel@vger.kernel.org, linux-mm-cc@laptop.org,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Andrey Panin" <pazke@donpac.ru>, "Bret Towe" <magnade@gmail.com>,
	"Michael-Luke Jones" <mlj28@cam.ac.uk>
Subject: Re: [RFC] LZO de/compression support - take 4
Date: Mon, 28 May 2007 14:38:54 +0530	[thread overview]
Message-ID: <4cefeab80705280208v2cfdd420u82f1d3b157abb6e0@mail.gmail.com> (raw)
In-Reply-To: <200705280443.56152.dhazelton@enter.net>

On 5/28/07, Daniel Hazelton <dhazelton@enter.net> wrote:
> On Monday 28 May 2007 04:37:04 Nitin Gupta wrote:
> > On 5/28/07, Daniel Hazelton <dhazelton@enter.net> wrote:

<snip>

> >
> > As you mentioned in your mail, you are using lzo1x_1_11_compress()
> > which is slower than what I ported (which is same as what is exported
> > by miniLZO). So, can you please test with the version ported  - this
> > is found in lzo/src/lzo1x_1.c (or in minilzo.c).
> > Also, can you please use 'take 5' for your next testing?
> >
> > Thanks,
> > Nitin
>
> Will do.  (that's DBITS=15, correct?)
>

That's D_BITS=14

> However, when I averaged it 100 times, lzo1x_1_11_compress() showed better
> speed than your implementation - about 1.5% faster.

I don't yet have any explanation for this.

> The *unsafe*
> decompressor, however, only shows about a 1.2% speed advantage over the safe
> decompressor.
>
> DRH
>

  reply	other threads:[~2007-05-28  9:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-25 11:45 Nitin Gupta
2007-05-25 12:00 ` Michael-Luke Jones
2007-05-25 12:10 ` Richard Purdie
2007-05-25 12:37   ` Satyam Sharma
2007-05-25 13:38     ` Richard Purdie
2007-05-25 16:55       ` Daniel Hazelton
2007-05-25 18:45         ` Daniel Hazelton
2007-05-25 19:35           ` Satyam Sharma
2007-05-28  8:18             ` Daniel Hazelton
2007-05-28  8:37               ` Nitin Gupta
2007-05-28  8:43                 ` Daniel Hazelton
2007-05-28  9:08                   ` Nitin Gupta [this message]
2007-05-28  9:21                     ` Daniel Hazelton
2007-05-28  9:46                       ` Nitin Gupta
2007-05-28  9:58                         ` Daniel Hazelton
2007-05-25 12:57   ` Nitin Gupta
2007-05-25 13:33     ` Richard Purdie
2007-05-26 10:28     ` Richard Purdie
2007-05-26 11:21       ` Nitin Gupta
2007-05-25 12:32 ` Satyam Sharma
2007-05-26 19:17 roland

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