4 ms·
Correct, but in practice memory has permissions on a page level and most pages today are 4K. So a page containing a buffer is also likely to contain other data
by PhilWright 10y ago
Correct, but in practice memory has permissions on a page level and most pages today are 4K. So a page containing a buffer is also likely to contain other data as well. Unless you are going to isolate each buffer by placing it in its own page.
- rybosome 10y agoThat doesn't make sense to me. So an OS will assign a 4K page of memory to multiple processes, with some granularity that each process "should" only be able to write/read some of it?