On Wed, May 09, 2007 at 01:32:20AM +0100, Alan Cox wrote:
> > (without SLAB emulation) and fragmentation was not the driving force
> > for replacement. Small Linux 1.x machines frequently had uptimes of 1+
> > years without fragmenting to death. Instead, it was performance with
>
> 8MB for a bit over 3 years.... (1.2.13lmp)
>
> The fragmentation issue I think is overbaked. A lot of the academic work
> argues that there is pretty much no long term difference between first
> fit, best fit, and most of the clever algorithms (obviously stupid ones
> like "take the middle out of the biggest space allocator" do perform
> worse). For MMUless boxes fragmentation is a big issue but not for normal
> systems.
Further, the received wisdom that fragmentation of SLAB-like systems
is better is not above doubt. Our own issues with dcache fragmentation
suggest it's far from perfect.
--
Mathematics is the supreme nostalgia of our time.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
