Re: [RFC] Snappy compressor for Linux Kernel (specifically, zram)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Apr 16, 2011 at 12:45:41AM +0300, Zeev Tarantov wrote:
> On Fri, Apr 15, 2011 at 05:21, Greg KH <greg@xxxxxxxxx> wrote:
> > Why is this needed to be added to the kernel?  What does it provide that
> > users or other parts of the kernel needs?
> 
> It is functionally a general data compression tool that trades off
> compression ratio for speed. It is optimized for x86-64 and there
> achieves compression at 250MB/sec and decompression at 500MB/sec
> (YMMV*). This is a better mousetrap, that can and should replace LZO
> in every place where the kernel currently uses LZO.

Like where?

Have you done so and found it really to be faster and smaller?  If so,
benchmarks and the numbers will be required for this to be accepted.

You need to show a solid use case for why to switch to this code in
order to have it accepted.

> The original code has been used in production by Google since 2005 or
> so. It is stable and secure. Unless I've ruined it somehow when
> porting, of course.

It might be stable in userspace, that doesn't mean much for within the
kernel though, please realize this.

thanks,

greg k-h
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel



[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux