--- On Thu, 5/5/11, Robert P. J. Day <rpjday [ at ] crashcourse [ dot ] ca> wrote:
| I'm looking at picking up a seriously fast notebook
...
| but i'm intrigued that this system comes with dual hybrid SSD
| drives. anyone out there using these kinds of drives? can you
| testify to noticeably better performance?
...
In December I bought the Crucial RealSSD from shopRBC.com.
Yes, the machines are noticably faster.
I've since bought 1 for a different laptop and 1 for my Intel Core I5 desktop.
Also, the SSD takes less power so the computer fan is usually off or
running very slowly. Very nice when just reading web pages.
My notes:
- Installing Ubuntu 10.04 LTS (Lucid Lynx) desktop on ThinkPad T500.
- testing SSD
Crucial RealSSD C300 64GB 2.5 inch SATA 6GBs Solid State Drive - $128.
Firmware rev 0002 S/N 103802FD810F Rated at 5V 2.0 Amps
- summary: Crucial RealSSD is 5 times faster on read and 20% faster
on write than WD Scorpio Black 320GB.
I used "hdparm -t /dev/sda" on both drives for the read speed test.
Offhand, I don't recall what I used to test writes.
Here's some things I did to reduce SSD wear but don't know how much it matters.
http://www.thegeekstuff.com/2008/11/overview-of-ramfs-and-tmpfs-on-linux/
Overview of RAMFS and TMPFS on Linux - Ramesh Natarajan Nov 6, 2008
The notes in the "Tweaks" article below don't show how to set the
ramdisk size.
Added to /etc/fstab
# use ramdisk for /tmp to reduce writes to SSD
tmpfs /tmp tmpfs defaults,noatime,size=200M,mode=1777 0 0
cd /tmp; rm -rf *; reboot
Rrjrlap3% df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 9.2G 1.3G 7.6G 14% /
tmpfs 200M 12K 200M 1% /tmp
/dev/sda6 19G 5.9G 12G 34% /usr
/dev/sda7 28G 6.4G 20G 25% /u1
- Put Firefox cache in ram.
Open about:config in Firefox. Right click in an open
area and create a new string value called
browser.cache.disk.parent_directory. Set the value to /tmp.
Files ended up in /tmp/Cache owned by roland.
Back this up before hibernate?
roland