All Posts by Date or last 15, 30, 90 or 180 days.
also by Lloyd: diglloyd.com photography and WindInMyFace.com

Links on this site earn me fees or commissions.
As an Amazon Associate I earn from qualifying purchases @AMAZON

Consult with Lloyd: cameras, computers, backup, etc...
Lloyd’s Patreon
Designed for the most demanding needs of photographers and videographers.
The fastest, toughest, and most compatible portable SSD ever with speeds up to 2800MB/s.

Promise Pegasus J4 Thunderbolt: Performance with Four OWC 6G SSDs and Incompressible Data

Some types of data cannot be compressed, and all varieties of SSDs with Sandforce controllers drop in write performance with incompressible data (read performance is unaffected in any meaningful way). Since reads dominate most computing scenarios, the write speed is generally much less important, so long as it is still reasonably fast (which it is here).

Still, for those looking for peak performance with any type of data, testing the worst case scenario (an absurdly unfriendly non-repeating random data stream) gives insight into the very worst case, which is unlikely to occure in most real world usage.

Performance with 1/2/3/4 SSDs on incompressible data.

Tested with diglloydTools DiskTester.

RAID-0 stripes of 2/3/4 SSDs + single SSD
(Data from diglloydTools DiskTester data graphed from fill-volume test)
View all handpicked deals...

Apple 16.2" MacBook Pro with M1 Max Chip (Late 2021, Space Gray)
$3499 $2399
SAVE $1100

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__