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Message-Id: <E1IlQfM-0003cO-00@gondolin.me.apana.org.au>
Date: Fri, 26 Oct 2007 23:00:04 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: "David S. Miller" <davem@...emloft.net>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
netdev@...r.kernel.org
Subject: [PATCH 1/2] [CRYPTO] tcrypt: Move sg_init_table out of timing loops
[CRYPTO] tcrypt: Move sg_init_table out of timing loops
This patch moves the sg_init_table out of the timing loops for hash
algorithms so that it doesn't impact on the speed test results.
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
---
crypto/tcrypt.c | 20 ++++++++++++++------
1 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index c457bdb..24141fb 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -572,9 +572,11 @@ static int test_hash_jiffies_digest(struct hash_desc *desc, char *p, int blen,
int bcount;
int ret;
+ sg_init_table(sg, 1);
+
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
- sg_init_one(sg, p, blen);
+ sg_set_buf(sg, p, blen);
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
return ret;
@@ -597,13 +599,15 @@ static int test_hash_jiffies(struct hash_desc *desc, char *p, int blen,
if (plen == blen)
return test_hash_jiffies_digest(desc, p, blen, out, sec);
+ sg_init_table(sg, 1);
+
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = crypto_hash_init(desc);
if (ret)
return ret;
for (pcount = 0; pcount < blen; pcount += plen) {
- sg_init_one(sg, p + pcount, plen);
+ sg_set_buf(sg, p + pcount, plen);
ret = crypto_hash_update(desc, sg, plen);
if (ret)
return ret;
@@ -628,12 +632,14 @@ static int test_hash_cycles_digest(struct hash_desc *desc, char *p, int blen,
int i;
int ret;
+ sg_init_table(sg, 1);
+
local_bh_disable();
local_irq_disable();
/* Warm-up run. */
for (i = 0; i < 4; i++) {
- sg_init_one(sg, p, blen);
+ sg_set_buf(sg, p, blen);
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
goto out;
@@ -645,7 +651,7 @@ static int test_hash_cycles_digest(struct hash_desc *desc, char *p, int blen,
start = get_cycles();
- sg_init_one(sg, p, blen);
+ sg_set_buf(sg, p, blen);
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
goto out;
@@ -679,6 +685,8 @@ static int test_hash_cycles(struct hash_desc *desc, char *p, int blen,
if (plen == blen)
return test_hash_cycles_digest(desc, p, blen, out);
+ sg_init_table(sg, 1);
+
local_bh_disable();
local_irq_disable();
@@ -688,7 +696,7 @@ static int test_hash_cycles(struct hash_desc *desc, char *p, int blen,
if (ret)
goto out;
for (pcount = 0; pcount < blen; pcount += plen) {
- sg_init_one(sg, p + pcount, plen);
+ sg_set_buf(sg, p + pcount, plen);
ret = crypto_hash_update(desc, sg, plen);
if (ret)
goto out;
@@ -708,7 +716,7 @@ static int test_hash_cycles(struct hash_desc *desc, char *p, int blen,
if (ret)
goto out;
for (pcount = 0; pcount < blen; pcount += plen) {
- sg_init_one(sg, p + pcount, plen);
+ sg_set_buf(sg, p + pcount, plen);
ret = crypto_hash_update(desc, sg, plen);
if (ret)
goto out;
-
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