diglloyd Mac Performance Guide

Thank you for purchasing through links and ads on this site.
Trusted computing vendor MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
ThunderBay 4, up to 32TB!
12" MacBook 37% OFF
1.2 GHz, 8GB Memory, 512GB SSD, 2015 model -$1599 now $999.00
See also 15" MacBook Pro deals
PLUS free Parallels Desktop
15" MacBook Pro 33% OFF
2.5 GHz, 16GB Memory, 1TB SSD, 2015 model-$3299 now $2199
See also 13" MacBook deals
PLUS free Parallels Desktop

MacBook Pro i7 SATA performance With Solid State Drives: BIZARRE

Related: Macs, MacBook Pro, MacBook Pro and MacBook
Last updated May 14, 2010 - Send Feedback

See the previous page on performance of the internal SATA ports.

Y’all can’t make this stuff up.

In perhaps one of the more bizarre things I’ve observed while testing over the last decade, there’s a catch:

USB devices and eSATA has no such effect.

When the tests on the previous page were performed, the MacBook Pros were booted off a Firewire 800 drive, so those tests shows maximum performance. Booting without an attached and powered-on Firewire 800 deviced shows a major performance hit (MacBook Pro Core i7 only).

The hit

It’s absolutely ridiculous, but 100% repeatable (Mac OS X, MacBook Pro Core i7 2.66GHz). Here is the behavior, and it’s a 33% performance hit for reads and 17% for writes:

Copyright 2010 DIGLLOYD INC / Mac Performance Guide
Simply having a Firewire 800 device attached (any device) boosts speed dramatically!

Workaround

Whether this is a hardware or a software bug is unclear. (Tests with 64-bit Mac OS X kernel).

The workaround is to get a Firewire 800 card reader (which most photographers need anyway), and leave it plugged in. Alternately, a drive like the Mercury Elite AL-Pro Mini will do the same neat trick.

SSD Upgrade for MacBook Pro Retina

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2008-2016 diglloyd Inc, all rights reserved.