3 ms·
Memory is still an order of magnitude faster than your “very fast SSD”.
by stephencanon 13y ago
Memory is still an order of magnitude faster than your “very fast SSD”.
- alcuadrado 13y agojust one?
- stephencanon 13y agoAt least one. Potentially more. The actual multiple depends strongly on the specific SSD and memory configurations in question, and on the benchmark of interest.
- dingaling 13y agoAnd memory is still an order of magnitude more expensive than SSD, per GB. I just bought 4 GB of PC-6400 for a laptop at £40. A fast 128GB SSD is £100. Summary: use RAM judiciously
- sp332 13y agoThe prefetched data is managed by the OS. If a program needs the RAM, the prefetched data is immediately discarded. Prefetching never creates RAM pressure.
- voidlogic 13y agoThis. It blows my mind how many people who write software don't understand how OS caching and virtual memory work. They are great filter interview questions ;)
- stephencanon 13y agoAll the more reason for your OS to use memory aggressively. Surely you don't want your expensive investment sitting around just doing nothing? Unused memory is wasted memory.