[PATCH 16/18] Hibernate: show the verification time for monitor performance
From: Lee, Chun-Yi <hidden>
Date: 2013-08-22 11:06:27
Also in:
linux-efi, linux-pm, lkml
Subsystem:
hibernation (aka software suspend, aka swsusp), suspend to ram, the rest · Maintainers:
"Rafael J. Wysocki", Linus Torvalds
Show the verification time for monitor the performance of SHA256 and RSA verification. Reviewed-by: Jiri Kosina <redacted> Signed-off-by: Lee, Chun-Yi <jlee-IBi9RG/b67k@public.gmane.org> --- 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