Actually, the way that some of the new memory device physics is coming
along, that terabyte may well be the main store.
On Wed, Feb 24, 2010 at 8:11 AM, Ben Kloosterman <[email protected]> wrote:
> But those same laptops will be running around with 4-16G RAM ( limited by
> batteries, desktops or severs will prob be 100G) and 64 bit addressing .
> The counter question I raised was is paging needed as you can persist data
> by other more flexible and more loosely coupled mechanisms which may be
> slower if the device demands it . Also solid state drives don’t reduce
> battery power when used which it will for paging , for smartphones this may
> not be acceptable as the devices size is mainly limited by the battery for
> which we are likely to see little improvement in technology.
>
>
>
> With some doubt over the usefulness of paging ( well I have) why make
> paging a critical feature of an OS and worse tightly couple it to a GC , at
> the least you deny all devices today and in the future that have no low
> latency secondary storage or which have secondary storage that needs to be
> quite for power reasons ?
>
>
>
>
>
> *From:* [email protected] [mailto:[email protected]]
> *On Behalf Of *Jonathan S. Shapiro
> *Sent:* Wednesday, February 24, 2010 5:18 PM
> *To:* [email protected]; CapROS development
>
> *Subject:* Re: [CapROS-devel] Paging and Garbage Collection
>
>
>
> On Wed, Feb 24, 2010 at 12:47 AM, Ben Kloosterman <[email protected]>
> wrote:
>
> ...I'm seeing a lot of newer devices with
> no or very little local storage with the OS loaded from some sort of ROM
>
>
>
> By the end of the next decade we're going to see commodity priced laptops
> with durable, relatively low latency solid-state stores in the terabyte
> range.
>
>
>
> The question isn't whether disk is going away. The question is how long
> it's going to take for commodity main memory to re-aquire ECC. Until then,
> there will be a logical store concept for the sake of durable and reliable
> recovery, even if that logical store is implemented in solid-state store.
>
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> CapROS-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/capros-devel
>
>
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
CapROS-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/capros-devel
