[ltp] X40 upgrade notes (SSD, Ubuntu Precise)
Thu, 21 Jun 2012 16:25:35 +0100
> Any idea how using the Kingfast SSD affects power consumption? A few
> years back I recall reading up on one particular X40 / SSD combo that
> looked good from a performance standpoint, but apparently was also a
> bit of a power hog (sorry, don't recall the specifics).
For me, the battery is wrecked - I use the machine as a silent
media-center pc (music over NFS, USB audio to hi-fi). Usually, SSDs tend
to be pretty good.
> Also, any thoughts on going with the Kingfast vs any other available
> SSD in this application?
As far as I can see, it's Kingfast and Kingspec as the only options.
> On my X40 I was using a "poor man's SSD" -- a 16GB Kingston Elite Pro
> Compact Flash card in an Addonics CF/IDE Adapter. I'm thinking a real
> SSD might provide noticeably better performance.
Indeed. I did very much the same a while ago. The CF cards provide
silence, low power, and read speeds slightly worse than HDD. CF's write
speed is awful; up to 1 second of latency.
The SSD is really quite good - the machine feels pretty snappy.
I did a couple of measurements for you:
hdparm -t /dev/sda
=> 64 MB/s read speed
dd if=/dev/zero of=tmp bs=1M count=1000; sync
=> 1 GB written in 21 seconds.
boot time from poweron to xfce being completely ready:
27 seconds (of which BIOS + GRUB take 8 seconds).