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Re: [Qemu-devel] [RFC] find_next_bit optimizations
From: |
Peter Lieven |
Subject: |
Re: [Qemu-devel] [RFC] find_next_bit optimizations |
Date: |
Mon, 11 Mar 2013 16:48:29 +0100 |
Am 11.03.2013 um 16:42 schrieb Paolo Bonzini <address@hidden>:
> Il 11/03/2013 16:41, Peter Lieven ha scritto:
>> can you verify if this does not make difference in the generated object code?
>> in buffer_is_zero() its outside the loop.
>
> No, it doesn't.
ok, i will sent the final patch tomorrow.
one last thought. would it make sense to update only `size`in the while loops
and compute the `result` at the end as `orgsize` - `size`?
Peter
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, (continued)
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Peter Lieven, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Paolo Bonzini, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, ronnie sahlberg, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Paolo Bonzini, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Peter Lieven, 2013/03/11
- [Qemu-devel] [PATCH] bitops: unroll while loop in find_next_bit()., Peter Lieven, 2013/03/12
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Peter Maydell, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Peter Maydell, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Peter Lieven, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations, Paolo Bonzini, 2013/03/11
- Re: [Qemu-devel] [RFC] find_next_bit optimizations,
Peter Lieven <=
Re: [Qemu-devel] [RFC] find_next_bit optimizations, Stefan Hajnoczi, 2013/03/12