Over a million developers have joined DZone.

Intel 320 SSD read performance

· Performance Zone

Evolve your approach to Application Performance Monitoring by adopting five best practices that are outlined and explored in this e-book, brought to you in partnership with BMC.

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.



Learn tips and best practices for optimizing your capacity management strategy with the Market Guide for Capacity Management, brought to you in partnership with BMC.

Topics:

Published at DZone with permission of Peter Zaitsev, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

The best of DZone straight to your inbox.

SEE AN EXAMPLE
Please provide a valid email address.

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.
Subscribe

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}