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Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool
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From: |
Jamie Lokier |
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Subject: |
Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool |
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Date: |
Sat, 6 Dec 2008 18:26:33 +0000 |
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User-agent: |
Mutt/1.5.13 (2006-08-11) |
Blue Swirl wrote:
> I like to use unsigned types whenever possible, IIRC compilers may
> generate better code with those.
On the one hand, unsigned division can sometimes be compiled faster,
depends on the architecture's div instructions.
On the other hand, signed operations can be optimised by GCC with
-fstrict-overflow, while the same unsigned operations cannot be so optimised.
-- Jamie
- [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Anthony Liguori, 2008/12/05
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Blue Swirl, 2008/12/06
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Gerd Hoffmann, 2008/12/09
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Anthony Liguori, 2008/12/09
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Andrea Arcangeli, 2008/12/10
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Anthony Liguori, 2008/12/10
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Gerd Hoffmann, 2008/12/10
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Anthony Liguori, 2008/12/10
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Andrea Arcangeli, 2008/12/10
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Andrea Arcangeli, 2008/12/11
- Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool, Gerd Hoffmann, 2008/12/11