Intel 320 SSD read performance

While PCI-e Flash cards show great performance, I am often asked about alternatives, as price for PCI-e cards is still significant and not acceptable for small companies and startups.

Intel 320 SSD appears to be a popular drive with a quite acceptable price.
I wrote about write performance of these cards, and now let’s take look on a random read workload.

I used a Cisco UCS C250 as base hardware, comparing in it:

  • regular RAID10 over 8 SAS 2.5 disks
  • single Intel 320 SSD directly attached to a HighPoint RocketRAID 2300
  • two Intel 320 SSD in hardware RAID0 mode, attached to a LSI SAS9211-4i controller

For simulating the workload I used sysbench’s fileio random reads. Scripts and raw results available on Launchpad.

Let’s see throughput results:

Throughput, MiB/sec (more is better)
threads Intel 320 Intel 320 2 strip RAID10 ratio Intel 320 / RAID10 ratio Intel 320 2 strip / RAID10
1 30.27 31.18 3.75 8.07 8.31
2 55.18 60.49 6.98 7.91 8.67
4 95.13 112.85 12.10 7.86 9.33
8 143.58 191.64 19.05 7.54 10.06
16 174.75 277.70 26.70 6.54 10.40
32 174.60 351.84 32.90 5.31 10.69

And response times:

95% response time, ms (less is better)
threads Intel 320 SSD Intel 320 SSD strip RAID ratio RAID/Intel 320 ratio RAID/Intel 320 strip
1 0.53 0.56 6.13 11.57 10.95
2 0.72 0.59 7.27 10.10 12.32
4 0.89 0.74 10.07 11.31 13.61
8 1.24 0.95 15.63 12.60 16.45
16 1.76 1.38 25.52 14.50 18.49
32 3.33 2.15 47.35 14.22 22.02

As conclusion, this card provides great read performance. A single card provides 5-8x better throughput and 10-14x better response time. Striping helps to increase throughput in 8-10x and response time in 10-22x.

While there are questions about write performance (see my previous post), I think this card is very suitable for read-intensive tasks, where you can expect significant improvements.




3 thoughts on “Intel 320 SSD read performance

  1. brade

    Hi Vadim!

    im trying to run yours scripts and looks like i don’t have report-interval param in my latest sysbench version:


    sysbench --report-interval
    Unknown option: --report-interval.

    sysbench --version
    sysbench 0.4.12

    are you using official release version?

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>