I have a chance to test Micron RealSSD™ P320h. Initially I was expecting a good performance, but you know, how big could be a difference with other products on market? PCIe SSD market is getting crowded, and every company is trying to show the best performance. And at the end, there is a single PCIe slot, single controller, we are probably about to reach limits of these components.
However I was really surprised to see performance numbers with Micron P320h.
In random reads the throughput is 3200 MiB/sec, while the best results I’ve seen so far was 1450 MiB/sec on single card and 2300 MiB/sec on duo.
And this is 16KiB blocksize, which gives us 200.000 random reads IOP/sec, again in 16K blocks (not 512 or 4096 usually used in public benchmarks).
The write random performance is on the record level also.
What are the numbers? I will be presenting full results for this card in my talk “MySQL and SSD” on Percona Live New York. If you want to be the first to see all results I invite you there – 15% discount code is “PerconaNY”.
There are also good questions how this card works with MySQL? Does raw IO performance gives benefits under MySQL workload? What filesystem you should use? What are MySQL tuning parameters to get the best performance? Again, all this in my talk “MySQL and SSD”, 2-Oct-2012.