You may want to read this: https://db.cs.cmu.edu/mmap-cidr2022/
Quoth [email protected]: > Further trying to sanitize venti, I decided to change my mventi (no isects) > for mmap IO. > > At a first stage I mmap the whole venti i arena partition (current size 80GB, > filled to 44GB). On a 64bit processor this is not a big thing, and replace > the file operations (rwpart in part.c and readarena in arena.c) by memmove. > > As it works on amd64 FreeBSD, I can now eliminate the block cache and its > complications (IO over block boundaries) from the source making the remaining > source much clearer. > > The price is, that I have to rely on demand paging of the OS. So it is > probably not easily portable to plan9 or 9front. > > Can any body give ime a hint, how to map a partition to a segment in 9front? ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tf991997f4e7bb37e-M1c4328c5437366d50eb39ffd Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
