895be15745
I noticed that by factoring out common rounds from the branches of the if-statements in the encryption and decryption functions, the executable file size goes down significantly, for crypto/cast5.ko from 26688 bytes to 24336 bytes (amd64). On my test system, I saw a slight speedup. This is the first time I'm doing such a benchmark - I found a similar one on the crypto mailing list, and I hope I did it right? Before: # cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128 Passsatz eingeben: # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,43484 s, 21,5 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,4089 s, 21,8 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,41091 s, 21,7 MB/s After: # cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128 Passsatz eingeben: # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,38128 s, 22,0 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,29486 s, 22,8 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,37162 s, 22,1 MB/s Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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.. | ||
async_tx | ||
ablkcipher.c | ||
aead.c | ||
aes_generic.c | ||
ahash.c | ||
algapi.c | ||
algboss.c | ||
ansi_cprng.c | ||
anubis.c | ||
api.c | ||
arc4.c | ||
authenc.c | ||
blkcipher.c | ||
blowfish.c | ||
camellia.c | ||
cast5.c | ||
cast6.c | ||
cbc.c | ||
ccm.c | ||
chainiv.c | ||
cipher.c | ||
compress.c | ||
crc32c.c | ||
cryptd.c | ||
crypto_null.c | ||
crypto_wq.c | ||
ctr.c | ||
cts.c | ||
deflate.c | ||
des_generic.c | ||
ecb.c | ||
eseqiv.c | ||
fcrypt.c | ||
fips.c | ||
gcm.c | ||
gf128mul.c | ||
ghash-generic.c | ||
hmac.c | ||
internal.h | ||
Kconfig | ||
khazad.c | ||
krng.c | ||
lrw.c | ||
lzo.c | ||
Makefile | ||
md4.c | ||
md5.c | ||
michael_mic.c | ||
pcbc.c | ||
pcompress.c | ||
pcrypt.c | ||
proc.c | ||
ripemd.h | ||
rmd128.c | ||
rmd160.c | ||
rmd256.c | ||
rmd320.c | ||
rng.c | ||
salsa20_generic.c | ||
scatterwalk.c | ||
seed.c | ||
seqiv.c | ||
serpent.c | ||
sha1_generic.c | ||
sha256_generic.c | ||
sha512_generic.c | ||
shash.c | ||
tcrypt.c | ||
tcrypt.h | ||
tea.c | ||
testmgr.c | ||
testmgr.h | ||
tgr192.c | ||
twofish_common.c | ||
twofish_generic.c | ||
vmac.c | ||
wp512.c | ||
xcbc.c | ||
xor.c | ||
xts.c | ||
zlib.c |