[linux-pm] [RFC][PATCH -mm 1/5] swsusp: Introduce memory bitmaps

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

 



On Wednesday 09 August 2006 13:53, Pavel Machek wrote:
> On Wed 2006-08-09 13:36:16, Rafael J. Wysocki wrote:
> > Hi,
> > 
> > On Wednesday 09 August 2006 13:27, Pavel Machek wrote:
> > > > > > Introduce the memory bitmap data structure and make swsusp use in the suspend
> > > > > > phase.
> > > > > > 
> > > > > > The current swsusp's internal data structure is not very efficient from the
> > > > > > memory usage point of view, so it seems reasonable to replace it with a data
> > > > > > structure that will require less memory, such as a pair of bitmaps.
> > > > > 
> > > > > Well, 500 lines of code  for what... 0.25% bigger image?
> > 
> > BTW, that depends on the total size of RAM.  On a 1.5 GB i386 box that would
> > be something like 100%.
> 
> Well, well, but 99.75% of that is from 3/5 patch, and we could still
> get those 99.75% without bitmaps, right?

Yes.  I meant the total gain from all of the changes.  [The highmem one would
be quite difficult without bitmaps, I think, because the bitmaps give us the
right ordering of pages automatically.]

Rafael


[Index of Archives]     [Linux ACPI]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [CPU Freq]     [Kernel Newbies]     [Fedora Kernel]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux