thinkpads.com Support Community Forum Index Bill Morrow's thinkpads.com Open Forum - The Original Thinkpad Support Forum
Follow ThinkpadsForum on Twitter
 Support this forum, shop at newmodeus.com
 Support the forum, shop at newmodeus.com
System backups occur about 7:00 am EDT and last about 10 minutes. This will slow performance. RSS feeds have been added to the forum.
Donate if you wish to:
bill at thinkpads dot com

It is currently Thu Jul 24, 2014 5:41 am

All times are UTC - 5 hours




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Revive your old SSD
PostPosted: Tue Sep 21, 2010 10:49 am 
Offline
Freshman Member

Joined: Tue Jul 24, 2007 9:40 pm
Posts: 110
Location: Odenton, MD
Some time back, we were collecting stats on HD, CF, and SSD speeds. I had posted a report out on the Transcend 30GB SSD I purchased, using CrystalDiskMark 2.2 on WinXP sp3, fresh install, with the results being:

Sequential Read: 76.04
Sequential Write: 45.08
Random Read (512kb): 74.00
Random Write (512kb): 31.12
Random Read (4kb): 12.81
Random Write (4kb): 1.928

Not horrible for an entry-level, original design SSD.

Yesterday, I ran CDM 3.0 on the same SSD, after having Win7 installed and heavy usage for the past six months or so. Stats were despicable:

Sequential Read: 78.58
Sequential Write: 15.93
Random Read (512kb): 76.21
Random Write (512kb): 6.73
Random Read (4kb): 13.08
Random Write (4kb): 0.063!!!

Talk about drop off!

So, I've been doing some research, and DisKeeper's PerfectDisk 11 boasts a "free space consolidation" feature for SSDs that will move data into the same memory chips, and clear up half-used cells. I don't know all the specific details. But since my system has been crawling lately, I thought I'd give it a go. After running, these are the results:

Sequential Read: 78.24
Sequential Write: 44.27
Random Read (512kb): 76.15
Random Write (512kb): 17.32
Random Read (4kb): 13.03
Random Write (4kb): 0.22

Massive read improvements! Not what a fresh install of the OS would show (at least, when I did that XP install) and there may be some calculation variation between 2.2 and 3.0 of CDM. However, that's a marked improvement.

Not trying to advertise, just want folks to know ... there are options for fixing those old SSD's, and it was a free download. (Trial period will end someday, I'm sure. :)

-J

_________________
--
Jon Evans Writer/Techie/Dad thegodling@verizon.net
DargonZine -- Free Fantasy Fiction Online
The Longest Running Magazine on the internet ... Period.
http://www.dargonzine.org


Top
 Profile  
 
 Post subject: Re: Revive your old SSD
PostPosted: Wed Sep 22, 2010 5:32 am 
Offline
Senior ThinkPadder
Senior ThinkPadder

Joined: Tue Jan 22, 2008 8:29 pm
Posts: 2908
Location: San Jose, CA
This is good info, probably similar in principle to writing "1111" data pattern I posted here:
viewtopic.php?f=3&t=41568&hilit=eraser&start=750
(Oct 17, 2009)

_________________
T60p 2623-DDU/UXGA IPS/ATI V5200
T60 2623-DCU/SXGA+ IPS/ATI X1400
T43p 2668-H8U/UXGA IPS/ATI V3200
R50p 1832-NU1/UXGA IPS/ATI FireGL T2
X61t 7762-B6U dual touch IPS/64GB SSD
X32 2673-BU6/32GB SSD
755CDV 9545-GBK Transmissive Projection LCD


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group