Showing posts with label performance. Show all posts
Showing posts with label performance. Show all posts

Sunday, 23 February 2014

Comparing SSD with HDD

I decided to give away my 250 GB Samsung HDD to my friend as i have no real use to it anymore. We can say it has low 'milage' on it - in practice it was only used for 2 years and only during the weekends in my 'second' PC.

Before giving it to anyone of course it worth to clean it. I thought i use Ubuntu's built-in 'Disk Utility'.


When i was looking for the option to erase all content i realized this is a great opportunity to compare my 64 GB SSD (Samsung also) to this HDD. The 'Benchmark' feature offers two mode. Read-Only mode or Read/Write mode. I had to go with the first as the latter one requires an empty disk. The benchmark will give you:
  • Minimum read rate
  • Maximum read rate
  • Average read rate
  • Average access time
Of course i remembered some figures from magazines where they compared SSD to HDD respecting these attributes but i was excited to see this in action. First let's see the HDD graph:


What amazed me is the dispersion when it comes to the access time (marked as green). The average read rate was 121.2 Mb/s. Now let's see how the 'non-spinning-cousin' performed:


Note how balanced the access time graph is. Also it was measured to be around 0.2 ms. The average read rate was about 261.8 Mb/s.

I am using this small SSD in this PC for around a year and it turned out to be a great investment for me. I had issues running Java application servers for development and using the SSD i could get away with 2GB DDR2. As i only use this PC on the weekend i did not want to invest too much in DDR2 RAM which is outdated anyway. Startup time is next to nothing and i don't mind the 64 gigs of available space as this is a machine i use for work only.

What are your experiences?