Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Upgrade the memory of your 2018 Mac mini up to 64GB

MacBook Pro i7 SATA performance With Solid State Drives: BIZARRE

Last updated 2010-05-14 - Send Feedback
Related: laptop, MacBook, MacBook Pro, Macs

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:

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.


World of Panasonic
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 23 hours unless noted. Certain deals may last longer.
$3199 SAVE $200 = 5.0% $99 FREE ITEMS Canon EOS R Mirrorless with 24-105mm in Cameras: Mirrorless
$1632 SAVE $700 = 28.0% $165 GIFT CARD LG C8PUA 55" Class HDR UHD Smart OLED TV in Electronics: Televisions
$3097 SAVE $200 = 6.0% $78 FREE ITEMS Nikon D850 DSLR in Cameras: DSLR
$1797 SAVE $200 = 10.0% Pentax K-1 Mark II DSLR in Cameras: DSLR
$998 SAVE $400 = 28.0% Sony a7 II Mirrorless in Cameras: Mirrorless
$1798 SAVE $200 = 10.0% Sony a7R II Mirrorless in Cameras: Mirrorless
$3998 SAVE $500 = 11.0% Sony a9 Mirrorless in Cameras: Mirrorless
$5987 SAVE $1839 = 23.0% ZEISS Loxia 5-Lens Bundle in Lenses: Mirrorless
$11594 SAVE $3157 = 21.0% ZEISS Otus ZF.2 3-Lens Bundle in Lenses: DSLR

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__