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Commit 8c002494 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
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[PATCH] swsusp: add read-speed instrumentation 



Add some instrumentation to the swsusp readin code to show what bandwidth
we're achieving.

Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ab954160

kernel/power/swap.c

+5 −0
Original line number Diff line number Diff line
@@ -522,12 +522,15 @@ static int load_image(struct swap_map_handle *handle, 
	unsigned int m;

	int ret;

	int error = 0;

	struct timeval start;

	struct timeval stop;



	printk("Loading image data pages (%u pages) ...     ", nr_pages);

	m = nr_pages / 100;

	if (!m)

		m = 1;

	nr_pages = 0;

	do_gettimeofday(&start);

	do {

		ret = snapshot_write_next(snapshot, PAGE_SIZE);

		if (ret > 0) {
@@ -539,11 +542,13 @@ static int load_image(struct swap_map_handle *handle, 
			nr_pages++;

		}

	} while (ret > 0);

	do_gettimeofday(&stop);

	if (!error) {

		printk("\b\b\b\bdone\n");

		if (!snapshot_image_loaded(snapshot))

			error = -ENODATA;

	}

	show_speed(&start, &stop, nr_pages, "Read");

	return error;

}