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CPU caches will soon be big enough, and flash fast enough, that there won't be any system RAM anymore. Your programs will basically run directly out of flash,
by Andys 17y ago
CPU caches will soon be big enough, and flash fast enough, that there won't be any system RAM anymore. Your programs will basically run directly out of flash, and made performant thanks to huge CPU cache.
- djcapelis 17y agoThat's just not going to end up true for a general system. For some embedded systems that's a possibility, but the type of write wear system RAM gets is very different than the type of write wear hard drives get. A few people had visions of this, but any engineer who's run the numbers and looked at the trends in flash technology knows it's extremely unlikely that flash will replace RAM before it eats dust because of minimum theoretical densities. STTRAM[1] might be capable of this when it comes online and in production, but it seems flash is unlikely to reach this point and STTRAM is still in development. [1] http://en.wikipedia.org/wiki/Spin_torque_transfer http://en.wikipedia.org/wiki/Spin_torque_transfer