On 2015-02-27, Grant Edwards <invalid@invalid.invalid> wrote:
> On 2015-02-27, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote:
> Dave Angel wrote:
>>> On 02/27/2015 12:58 AM, Steven D'Aprano wrote: Dave Angel wrote:
>>>>
>>>>> (Although I believe Seymour Cray was quoted as saying that virtual
>>>>> memory is a crock, because "you can't fake what you ain't got.")
>>>>
>>>> If I recall correctly, disk access is about 10000 times slower than RAM,
>>>> so virtual memory is *at least* that much slower than real memory.
>>>>
>>> It's so much more complicated than that, that I hardly know where to
>>> start.
>>
>> [snip technical details]
>>
>> As interesting as they were, none of those details will make swap faster,
>> hence my comment that virtual memory is *at least* 10000 times slower than
>> RAM.
>
> Nonsense. On all of my machines, virtual memory _is_ RAM almost all
> of the time. I don't do the type of things that force the usage of
> swap.
And on some of the embedded systems I work on, _all_ virtual memory is
RAM 100.000% of the time.
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Grant Edwards grant.b.edwards Yow! Don't SANFORIZE me!!
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