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

$2299 $1599
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

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

Restoring solid state drive performance with DiskTester ‘recondition’

After the severe duty test with the Intel 160GB G2 solid state drive, I wanted to see whether the DiskTester recondition facility could restore more uniform performance to the erratic Intel SSD.

Note: reconditioning is not needed for the OWC Mercury Extreme Pro, since it takes a beating and just keeps on working. But many brands of SSDs degrade in performance over time, and benefit from periodic reconditioning.

How DiskTester helps

Reconditioning a solid state drive (SSD)

DiskTester’s recondition command can be used on any solid state drive, even your boot drive. It’s faster to recondition a mostly empty drive, but it’s not required.

Reconditioning has no effect on your data, as it writes only to a temporary file using standard Mac OS X APIs. Your files are never touched during reconditioning, but note that some brands of SSDs can and do fail, especially if they are in bad shape to begin with, with a short lease on life. Be sure you have a backup.

DiskTester provides steady progress showing min/max/current/average speed, so you can decide when you have seen enough improvement. DiskTester stops after the equivalent of 4 full passes over all the capacity eg 640GB for a 160GB drive.

Get DiskTester here.

Graphing the results

When DiskTester has finished reconditioning, it presents a small table of results, which can be pasted into the supplied spreadsheet graph template.

In the graph below, we can see that in just one pass, DiskTester has:

  • Raised the average (green line) speed of the Intel 160GB SSD from 80 to 103MB/sec.
  • Raised the minimum speed (blue line) from 17MB/sec to 90MB/sec.

The maximum speed declined slightly, but that is not significant, as it represents a very brief blip, as examining the detailed output shows.

Performance with 4 iterations of recondition (3 shown 4th is the same as 3rd)

Before and after performance

These two graphs show behavior before and reconditioning, using DiskTester fill-volume.

After the severe duty test, the Intel 160GB G2 is looking quite ragged on the writes, with huge dips in speed, an erratic performance.

Average speed across the volume BEFORE

And here is the behavior after reconditioning:

Average speed across the volume AFTER
OWC
USB-C Travel Dock

Fast charging with up to 100W!

HDMI, SD card reader,
USB-C port, 2 USB Type-A ports
Built-in cable self-stores neatly.
See also OWC 14-port Thunderbolt 3 Dock"
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__