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Date: Sun, 18 May 2008 23:57:38 +0200
From: Sebastian Siewior <lkml@...breakpoint.cc>
To: Harvey Harrison <harvey.harrison@...il.com>
Cc: Johannes Berg <johannes@...solutions.net>,
Herbert Xu <herbert@...dor.apana.org.au>,
LKML <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] crypto: make michael_block a function
* Harvey Harrison | 2008-05-16 08:52:03 [-0700]:
>Well, the code-size difference is significant (about 200 bytes smaller
>on X86-32). This macro is essentially an inline function that is pretty
>large.
Can you please apply the attached patch and run
| modprobe tcrypt mode=314
before and after your patch?
I get the following numbers on one of my maschines:
before:
~~~~~~~
|test 0 ( 16 byte blocks, 16 bytes per update, 1 updates): 122 cycles/operation, 7 cycles/byte
|test 1 ( 64 byte blocks, 16 bytes per update, 4 updates): 370 cycles/operation, 5 cycles/byte
|test 2 ( 64 byte blocks, 64 bytes per update, 1 updates): 216 cycles/operation, 3 cycles/byte
|test 3 ( 256 byte blocks, 16 bytes per update, 16 updates): 1304 cycles/operation, 5 cycles/byte
|test 4 ( 256 byte blocks, 64 bytes per update, 4 updates): 746 cycles/operation, 2 cycles/byte
|test 5 ( 256 byte blocks, 256 bytes per update, 1 updates): 592 cycles/operation, 2 cycles/byte
|test 6 ( 1024 byte blocks, 16 bytes per update, 64 updates): 5040 cycles/operation, 4 cycles/byte
|test 7 ( 1024 byte blocks, 256 bytes per update, 4 updates): 2252 cycles/operation, 2 cycles/byte
|test 8 ( 1024 byte blocks, 1024 bytes per update, 1 updates): 2098 cycles/operation, 2 cycles/byte
|test 9 ( 2048 byte blocks, 16 bytes per update, 128 updates): 10021 cycles/operation, 4 cycles/byte
|test 10 ( 2048 byte blocks, 256 bytes per update, 8 updates): 4446 cycles/operation, 2 cycles/byte
|test 11 ( 2048 byte blocks, 1024 bytes per update, 2 updates): 4167 cycles/operation, 2 cycles/byte
|test 12 ( 2048 byte blocks, 2048 bytes per update, 1 updates): 4106 cycles/operation, 2 cycles/byte
|test 13 ( 4096 byte blocks, 16 bytes per update, 256 updates): 19982 cycles/operation, 4 cycles/byte
|test 14 ( 4096 byte blocks, 256 bytes per update, 16 updates): 8833 cycles/operation, 2 cycles/byte
|test 15 ( 4096 byte blocks, 1024 bytes per update, 4 updates): 8275 cycles/operation, 2 cycles/byte
|test 16 ( 4096 byte blocks, 4096 bytes per update, 1 updates): 8122 cycles/operation, 1 cycles/byte
|test 17 ( 8192 byte blocks, 16 bytes per update, 512 updates): 39906 cycles/operation, 4 cycles/byte
|test 18 ( 8192 byte blocks, 256 bytes per update, 32 updates): 17607 cycles/operation, 2 cycles/byte
|test 19 ( 8192 byte blocks, 1024 bytes per update, 8 updates): 16492 cycles/operation, 2 cycles/byte
|test 20 ( 8192 byte blocks, 4096 bytes per update, 2 updates): 16214 cycles/operation, 1 cycles/byte
|test 21 ( 8192 byte blocks, 8192 bytes per update, 1 updates): 16173 cycles/operation, 1 cycles/byte
after:
~~~~~~
|test 0 ( 16 byte blocks, 16 bytes per update, 1 updates): 175 cycles/operation, 10 cycles/byte
|test 1 ( 64 byte blocks, 16 bytes per update, 4 updates): 510 cycles/operation, 7 cycles/byte
|test 2 ( 64 byte blocks, 64 bytes per update, 1 updates): 342 cycles/operation, 5 cycles/byte
|test 3 ( 256 byte blocks, 16 bytes per update, 16 updates): 1813 cycles/operation, 7 cycles/byte
|test 4 ( 256 byte blocks, 64 bytes per update, 4 updates): 1182 cycles/operation, 4 cycles/byte
|test 5 ( 256 byte blocks, 256 bytes per update, 1 updates): 1013 cycles/operation, 3 cycles/byte
|test 6 ( 1024 byte blocks, 16 bytes per update, 64 updates): 7026 cycles/operation, 6 cycles/byte
|test 7 ( 1024 byte blocks, 256 bytes per update, 4 updates): 3869 cycles/operation, 3 cycles/byte
|test 8 ( 1024 byte blocks, 1024 bytes per update, 1 updates): 3701 cycles/operation, 3 cycles/byte
|test 9 ( 2048 byte blocks, 16 bytes per update, 128 updates): 13975 cycles/operation, 6 cycles/byte
|test 10 ( 2048 byte blocks, 256 bytes per update, 8 updates): 7662 cycles/operation, 3 cycles/byte
|test 11 ( 2048 byte blocks, 1024 bytes per update, 2 updates): 7346 cycles/operation, 3 cycles/byte
|test 12 ( 2048 byte blocks, 2048 bytes per update, 1 updates): 7282 cycles/operation, 3 cycles/byte
|test 13 ( 4096 byte blocks, 16 bytes per update, 256 updates): 27875 cycles/operation, 6 cycles/byte
|test 14 ( 4096 byte blocks, 256 bytes per update, 16 updates): 15247 cycles/operation, 3 cycles/byte
|test 15 ( 4096 byte blocks, 1024 bytes per update, 4 updates): 14615 cycles/operation, 3 cycles/byte
|test 16 ( 4096 byte blocks, 4096 bytes per update, 1 updates): 14447 cycles/operation, 3 cycles/byte
|test 17 ( 8192 byte blocks, 16 bytes per update, 512 updates): 55673 cycles/operation, 6 cycles/byte
|test 18 ( 8192 byte blocks, 256 bytes per update, 32 updates): 30416 cycles/operation, 3 cycles/byte
|test 19 ( 8192 byte blocks, 1024 bytes per update, 8 updates): 29155 cycles/operation, 3 cycles/byte
|test 20 ( 8192 byte blocks, 4096 bytes per update, 2 updates): 28839 cycles/operation, 3 cycles/byte
|test 21 ( 8192 byte blocks, 8192 bytes per update, 1 updates): 28794 cycles/operation, 3 cycles/byte
>
>Harvey
Sebastian
---
crypto/tcrypt.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1ab8c01..c0040d5 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -1761,6 +1761,10 @@ static void do_test(void)
test_hash_speed("sha224", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
+ case 314:
+ test_hash_speed("michael_mic", sec, generic_hash_speed_template);
+ if (mode > 300 && mode < 400) break;
+
case 399:
break;
--
1.5.4.3
--
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