Brendan Hide posted on Mon, 05 May 2014 08:55:55 +0200 as excerpted:

> You are 100% right, though. The scale is very small. By negligible, the
> "penalty" is at most a few CPU cycles. When compared to the wait time on
> a spindle, it really doesn't matter much.

The analogy I've used before is that of taking a trip (which the data 
effectively is, between the device and the CPU).

We've booked a 10-day cruise and are now debating what we plan on taking 
to and from the boarding dock.  Will taking the local bus with a couple 
of transfers, or a taxi that will take us there in one trip but there's 
road construction and thus a detour, or a helicopter to fly directly,  
get us back from the cruise faster?

Obviously, taking the helicopter (at least for the return leg) will get 
us back a bit faster, but we're talking perhaps a couple hours difference 
at the end of a 10 day cruise!

=:^)

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to