4 ms·
Not even close. The bandwidths of RAM vs. SSDs differ by a couple orders of magnitude.
by wheels 18y ago
Not even close. The bandwidths of RAM vs. SSDs differ by a couple orders of magnitude.
- krschultz 18y agoEspecially with the Intel X-25 at around $4.50 per GB and DDR2 running at $10 per GB - there just isn't much of a cost savings for completely disparate performance.
- wmf 18y agoWhen you calculate the price of RAM, consider the slots as well. Putting a TB of RAM in a server requires more than just DIMMs.
- bayareaguy 18y agoBut as the paper linked by the article[1] points out, a single server can hold much more data in SSD storage then in onboard RAM. For ordinary databases, one sweet spot for SSDs is for index tablespaces. [1] - http://research.microsoft.com/en-us/um/people/antr/ms/ssd.pdf http://research.microsoft.com/en-us/um/people/antr/ms/ssd.pd...