On Thu, 8 Feb 2001, Mikulas Patocka wrote: > > > The problem is that aio_read and aio_write are pretty useless for ftp or > > > http server. You need aio_open. > > > > Could you explain this? > > If the server is sending many small files, disk spends huge amount time > walking directory tree and seeking to inodes. Maybe opening the file is > even slower than reading it - read is usually sequential but open needs to > seek at few areas of disk. > > And if you have one-threaded server using open, close, aio_read and > aio_write, you actually block the whole server while it is opening a > single file. This is not how async io is supposed to work. Ok but this is not the point of the discussion. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
- Re: select() returning busy for regular files [was Re: ... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Ben LaHaise
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Marcelo Tosatti
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Marcelo Tosatti
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Pavel Machek
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Marcelo Tosatti
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Mikulas Patocka
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Marcelo Tosatti
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Mikulas Patocka
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Marcelo Tosatti
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Rik van Riel
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... James Sutherland
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Martin Dalecki
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Jens Axboe
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Mikulas Patocka
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Pavel Machek
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Jens Axboe