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would you please suggest some text book to follow ?
Very nice video but how long does this take to sync to disk from memory ?
How is this different from calling a big read for the entirety of the file and then a big write?
You're gonna need to store your big read somewhere in the memory (buffer) and that's exactly memory mapped IO
@@DMWatchesTH-cam no. it does not. Read actually reads from disk. When you map a file to a page in your memory you tell your system to load that page when you are going to read it, as if it was a normal memory page that has been swapped to disk
would you please suggest some text book to follow ?
Very nice video but how long does this take to sync to disk from memory ?
How is this different from calling a big read for the entirety of the file and then a big write?
You're gonna need to store your big read somewhere in the memory (buffer) and that's exactly memory mapped IO
@@DMWatchesTH-cam no. it does not. Read actually reads from disk.
When you map a file to a page in your memory you tell your system to load that page when you are going to read it, as if it was a normal memory page that has been swapped to disk