Changing performance balance between CPU & non-volatile storage

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Changing performance balance between CPU & non-volatile storage

Ben Coman
An enlightening article (if a bit long).  I wonder how non-volatile
storage being  faster than a CPU might affect Pharo systems.  Perhaps
the importance of migrating between live and backup Images gains in
importance to backups via files.

https://queue.acm.org/detail.cfm?id=2874238

cheers -ben

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Re: Changing performance balance between CPU & non-volatile storage

Stephan Eggermont-3
On 07-01-16 20:07, Ben Coman wrote:
> An enlightening article (if a bit long).  I wonder how non-volatile
> storage being  faster than a CPU might affect Pharo systems.  Perhaps
> the importance of migrating between live and backup Images gains in
> importance to backups via files.

I'm not sure what to think about it. I find it an rather vague and badly
written article. 100K iops is not close to saturating what a CPU core
can process. The problem is the communication and the article does a
really good job at confusing me about that. Further, commercial pricing
is value based, not cost.

Stephan


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Re: Changing performance balance between CPU & non-volatile storage

Ben Coman
On Fri, Jan 8, 2016 at 9:17 PM, Stephan Eggermont <[hidden email]> wrote:

> On 07-01-16 20:07, Ben Coman wrote:
>>
>> An enlightening article (if a bit long).  I wonder how non-volatile
>> storage being  faster than a CPU might affect Pharo systems.  Perhaps
>> the importance of migrating between live and backup Images gains in
>> importance to backups via files.
>
>
> I'm not sure what to think about it. I find it an rather vague and badly
> written article. 100K iops is not close to saturating what a CPU core can
> process. The problem is the communication and the article does a really good
> job at confusing me about that. Further, commercial pricing is value based,
> not cost.
>
> Stephan

Yeah, I think I'll have to retract that about being enlightening,
rather just a façade of enlightenment.  Many of the follow up comments
on slashdot hit criticised it along the same lines and that its point
of view is that of vendors selling fast-nvram.  I probably shouldn't
have posted it. Sorry for the noise.
cheers -ben