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[profile] Allow interrupts to be excluded from profiling results

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Interrupt processing adds noise to profiling results.  Allow
interrupts (from within protected mode) to be profiled separately,
with time spent within the interrupt handler being excluded from any
other profiling currently in progress.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2014-05-04 11:45:11 +01:00
parent 69313edad8
commit 6f410a16d9
4 changed files with 120 additions and 23 deletions
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4
src/arch/i386/interface/pxeparent/pxeparent.c
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@@ -240,12 +240,12 @@ int pxeparent_call ( SEGOFF16_t entry, unsigned int function,
"D" ( __from_data16 ( &pxeparent_params ) )
: "ecx", "esi" );
profile_stop ( &profiler->total );
profile_start_at ( &profiler->p2r, profiler->total.started );
profile_start_at ( &profiler->p2r, profile_started ( &profiler->total));
profile_stop_at ( &profiler->p2r, started );
profile_start_at ( &profiler->ext, started );
profile_stop_at ( &profiler->ext, stopped );
profile_start_at ( &profiler->r2p, stopped );
profile_stop_at ( &profiler->r2p, profiler->total.stopped );
profile_stop_at ( &profiler->r2p, profile_stopped ( &profiler->total ));
/* Determine return status code based on PXENV_EXIT and
* PXENV_STATUS