[PATCH 16/18] Hibernate: show the verification time for monitor performance
From: Lee, Chun-Yi
Date: Thu Aug 22 2013 - 07:06:32 EST
Show the verification time for monitor the performance of SHA256 and RSA
verification.
Reviewed-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxx>
---
kernel/power/snapshot.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 36c7157..b9c6a8a 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -2536,6 +2536,8 @@ error_mpi:
int snapshot_image_verify(void)
{
+ struct timeval start;
+ struct timeval stop;
struct crypto_shash *tfm;
struct shash_desc *desc;
u8 *digest;
@@ -2563,6 +2565,8 @@ int snapshot_image_verify(void)
desc->tfm = tfm;
desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ do_gettimeofday(&start);
+
ret = crypto_shash_init(desc);
if (ret < 0)
goto error_shash;
@@ -2581,6 +2585,9 @@ int snapshot_image_verify(void)
if (ret)
goto error_verify;
+ do_gettimeofday(&stop);
+ swsusp_show_speed(&start, &stop, nr_copy_pages, "Verified");
+
kfree(h_buf);
kfree(digest);
crypto_free_shash(tfm);
--
1.6.4.2
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