[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: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
ab95416035
commit
8c002494b5
|
@ -522,12 +522,15 @@ static int load_image(struct swap_map_handle *handle,
|
||||||
unsigned int m;
|
unsigned int m;
|
||||||
int ret;
|
int ret;
|
||||||
int error = 0;
|
int error = 0;
|
||||||
|
struct timeval start;
|
||||||
|
struct timeval stop;
|
||||||
|
|
||||||
printk("Loading image data pages (%u pages) ... ", nr_pages);
|
printk("Loading image data pages (%u pages) ... ", nr_pages);
|
||||||
m = nr_pages / 100;
|
m = nr_pages / 100;
|
||||||
if (!m)
|
if (!m)
|
||||||
m = 1;
|
m = 1;
|
||||||
nr_pages = 0;
|
nr_pages = 0;
|
||||||
|
do_gettimeofday(&start);
|
||||||
do {
|
do {
|
||||||
ret = snapshot_write_next(snapshot, PAGE_SIZE);
|
ret = snapshot_write_next(snapshot, PAGE_SIZE);
|
||||||
if (ret > 0) {
|
if (ret > 0) {
|
||||||
|
@ -539,11 +542,13 @@ static int load_image(struct swap_map_handle *handle,
|
||||||
nr_pages++;
|
nr_pages++;
|
||||||
}
|
}
|
||||||
} while (ret > 0);
|
} while (ret > 0);
|
||||||
|
do_gettimeofday(&stop);
|
||||||
if (!error) {
|
if (!error) {
|
||||||
printk("\b\b\b\bdone\n");
|
printk("\b\b\b\bdone\n");
|
||||||
if (!snapshot_image_loaded(snapshot))
|
if (!snapshot_image_loaded(snapshot))
|
||||||
error = -ENODATA;
|
error = -ENODATA;
|
||||||
}
|
}
|
||||||
|
show_speed(&start, &stop, nr_pages, "Read");
|
||||||
return error;
|
return error;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue