Re: [Qemu-devel] fixing qemu busy wait

[Orr Dvory]

the new patch is attached...

On Sun, Feb 17, 2013 at 6:32 PM, Orr Dvory <address@hidden> wrote:

Yes it would :)
Should I do that? or that you already fixed the issue?

On Sun, Feb 17, 2013 at 12:06 AM, Richard Henderson <address@hidden> wrote:

On 2013-02-15 03:12, Orr Dvory wrote:

when debugging with qemu(user mode), qemu waits in infinite loop to read
a signal from gdb (when it waits on breakpoint for example).
I added sleeps to reduce the cpu usage from 100% to about ~0%.

Wouldn't it be better to toggle the O_NONBLOCK state of the file descriptor across this loop?


r~

qemu-busy-wait.patch
Description: Binary data