It’s terminal (part 2)

Part two! The extra RAM stick is installed, and now Terminal says:

phil-laceys-imac-g5:~ Phil$ ioreg -p IODeviceTree -n memory -S | grep ram-
| “ram-layout-architecture” = <00000002>
| “ram-bus-width” = <00000080>

I’m slightly confused, as the “architecture” value is unchanged, but the “bus width” value is now 80 instead of 40.

So does that mean I’ve changed from 64-bit to 128-bit or not?!?

Startup from cold now takes 38 seconds (18 seconds faster), and iPhoto takes 9 seconds to load (6 seconds faster).

I’m not sure whether these speed improvements are down to just having twice as much RAM, a 128-bit pipeline or a combination of both.

I fear there needs to be some research done. I feel an email to Apple coming on. :o)

UPDATE:
Not sure whether this is at all relevant, but 00000040 is hexadecimal for 64, and 00000080 is hexadecimal for 128.

Clear as mud.

This entry was posted in Uncategorized. Bookmark the permalink.

0 Responses to It’s terminal (part 2)

Leave a Reply

Your email address will not be published. Required fields are marked *