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Re: Speed Problem Copying Files




Jeremy Nicoll wrote: 
> On Thu, 9 May 2019, at 15:17, Gene Heskett wrote:
> > ... and its one of the reasons 
> > an SSD seems so much faster because they seek in a microsecond
> 
> In what sense does an SSD have "seek time"?     Seek time is
> a tightly defined thing.
> 
> There must be delays in SSD firmware's processing, I suppose, but
> it isn't seek time.

In this case, the latency between the OS issuing a read/write request
and the drive beginning to fulfill it. 

IOPs is usually a more useful way of putting it: a spinning disk
offers between 80 and 150 I/O operations (seeks) per second; a
typical SSD offers between 15000 and 600000 IOPs.

-dsr-