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[downloader] Profile receive datapath 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/17/head
Michael Brown 2014-04-28 12:31:39 +01:00
parent e825a96a25
commit 4e78733094
1 changed files with 15 additions and 0 deletions
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15
src/core/downloader.c
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@ -29,6 +29,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/uaccess.h> #include <ipxe/uaccess.h>
#include <ipxe/umalloc.h> #include <ipxe/umalloc.h>
#include <ipxe/image.h> #include <ipxe/image.h>
#include <ipxe/profile.h>
#include <ipxe/downloader.h> #include <ipxe/downloader.h>
/** @file /** @file
@ -37,6 +38,14 @@ FILE_LICENCE ( GPL2_OR_LATER );
* *
*/ */
/** Receive profiler */
static struct profiler downloader_rx_profiler __profiler =
{ .name = "downloader.rx" };
/** Data copy profiler */
static struct profiler downloader_copy_profiler __profiler =
{ .name = "downloader.copy" };
/** A downloader */ /** A downloader */
struct downloader { struct downloader {
/** Reference count for this object */ /** Reference count for this object */
@ -166,6 +175,9 @@ static int downloader_xfer_deliver ( struct downloader *downloader,
size_t max; size_t max;
int rc; int rc;
/* Start profiling */
profile_start ( &downloader_rx_profiler );
/* Calculate new buffer position */ /* Calculate new buffer position */
if ( meta->flags & XFER_FL_ABS_OFFSET ) if ( meta->flags & XFER_FL_ABS_OFFSET )
downloader->pos = 0; downloader->pos = 0;
@ -178,8 +190,10 @@ static int downloader_xfer_deliver ( struct downloader *downloader,
goto done; goto done;
/* Copy data to buffer */ /* Copy data to buffer */
profile_start ( &downloader_copy_profiler );
copy_to_user ( downloader->image->data, downloader->pos, copy_to_user ( downloader->image->data, downloader->pos,
iobuf->data, len ); iobuf->data, len );
profile_stop ( &downloader_copy_profiler );
/* Update current buffer position */ /* Update current buffer position */
downloader->pos += len; downloader->pos += len;
@ -188,6 +202,7 @@ static int downloader_xfer_deliver ( struct downloader *downloader,
free_iob ( iobuf ); free_iob ( iobuf );
if ( rc != 0 ) if ( rc != 0 )
downloader_finished ( downloader, rc ); downloader_finished ( downloader, rc );
profile_stop ( &downloader_rx_profiler );
return rc; return rc;
} }