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Re: [Qemu-devel] [PATCH qemu] profiler: Reenable built-in profiler
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH qemu] profiler: Reenable built-in profiler |
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Date: |
Tue, 17 Mar 2015 20:29:38 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 16/03/2015 04:57, Alexey Kardashevskiy wrote:
> 2ed1ebcf6 "timer: replace time() with QEMU_CLOCK_HOST" broke compile
> when configured with --enable-profiler. Turned out the profiler has been
> broken for a while.
>
> This does s/qemu_time/tcg_time/ as the profiler only works in a TCG mode.
> This also fixes the compile error.
>
> This changes profile_getclock() to return nanoseconds rather than
> CPU ticks as the "profile" HMP command prints seconds and there is no
> platform-independent way to get ticks-per-second rate.
> Since TCG is quite slow and get_clock() returns nanoseconds (fine
> enough), this should not affect precision much.
>
> This removes unused qemu_time_start and tlb_flush_time.
>
> Signed-off-by: Alexey Kardashevskiy <address@hidden>
Thanks, applied.
Paolo