4 ms·
I disagree with the statement that modern memory architectures have much higher read bandwidth vs write bandwidth. Benchmarks show they are within 30 percent o
by cwaffles 4y ago
I disagree with the statement that modern memory architectures have much higher read bandwidth vs write bandwidth.
Benchmarks show they are within 30 percent of each other: https://www.techspot.com/images2/news/bigimage/2021/03/2021-03-16-image-44.jpg https://www.techspot.com/images2/news/bigimage/2021/03/2021-...
https://www.anandtech.com/show/2525/5 https://www.anandtech.com/show/2525/5
- yxhuvud 4y agoWhile perhaps true, what needs to be compared here is read, vs read + write, no? Just writing isnt enough. And then we are at a factor above 2, assuming no thread contention. If there is contention, it can be a lot higher.
- adrianN 4y agoWhile "write bandwidth" is probably not the right term, writes are more expensive because you need to update caches. If you forked you might need to copy-on-write the page before you can write to it.