All Posts by Date or last 15, 30, 90 or 180 days.
also by Lloyd: diglloyd.com photography and WindInMyFace.com
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 2019 iMac up to 128GB
Handpicked deals...
$2998 $2498
SAVE $500

$1199 $920
SAVE $279

$1999 $1599
SAVE $400

$2799 $2399
SAVE $400

$400 $280
SAVE $120

$1798 $1598
SAVE $200

$3297 $2797
SAVE $500

$3397 $2797
SAVE $600

$1398 $898
SAVE $500

$3698 $2998
SAVE $700

$1799 $1329
SAVE $470

$1999 $1199
SAVE $800

$2249 $1549
SAVE $700

$2399 $2049
SAVE $350

$2799 $1899
SAVE $900

$997 $897
SAVE $100

$2099 $1699
SAVE $400

$1999 $1369
SAVE $630

$1349 $949
SAVE $400

$4499 $3999
SAVE $500

$1499 $1029
SAVE $470

$1499 $1289
SAVE $210

$2199 $1999
SAVE $200

$3399 $2199
SAVE $1200

$2418 $1718
SAVE $700

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

Perfect Scalability to 12 Cores with Photo Zoom Pro

Choose the best number of CPU cores for your actual work: 2013 Mac Pro: How Many CPU Cores for Your Workflow?

Yesterday I wrote on the mediocre scalability of Adobe Photoshop CC, which means that more than 6 CPU cores amounts to negligible gains, which is why I’ve been recommending 6 cores for Photoshop for years now—sporadic improvements by Adobe have emerged, but scalability remains modest.

While the disappointing scalability of Photoshop CC might see some influence from memory bandwidth, it almost certainly has a lot more to do with structural design issues in the code.

But does perfect or near perfect scaling to 12 cores exist in practice? In other words, will some programs get the job done with 12 core in half the time as 6 cores? Absolutely—I’ve written such code myself in Integrity Checker, though it’s throughput is usually I/O limited.

So here is an existence proof with PhotoZoom Pro 4 showing that perfect scalability to 12 cores* exists. One wonders what dual CPUs with 24 cores might offer for such tasks, which take a long time to run.

2014 Update: PhotoZoom Pro Perfect Scalability

* 12 cores meaning 12 cores with hyperthreading = 24 virtual cores.

Scalability of PhotoZoom Pro 4 on 12-core 3.33 GHz 2010 Mac Pro
View all handpicked deals...

Sony Alpha a7R III Mirrorless Digital Camera Body with Accessories Kit
$2998 $2498
SAVE $500

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__