Re: [Xen-users] HTPC + DUAL PC In one

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 07/17/2014 03:37 PM, Kuba wrote:
> W dniu 2014-07-16 10:19, Gordan Bobic pisze:
> > I haven't tried any encryption, but I do use them heavily with ZFS,
> > mostly 4-disk RAIDZ2. Receive always saturates the gigabit ethernet
> > link and scrubs go at about 250MB/s. All my models are older N36L
> > (1.3GHz) and N40L (1.5GHz), i.e. substantially less CPU than the most
> > recent N54L (2.2GHz).
> If it wouldn't be to much to ask, could you please run:
>
> cryptsetup benchmark
>
> or (if the above is not available):
>
> openssl speed aes-128-cbc aes-256-cbc
>
> on one of your servers? If it's not too much trouble, it would give me
> all the info I need to decide on buying one and I would be very grateful
> for that:)
On an old N36L (1.3GHz) model:

$ openssl speed aes-128-cbc aes-256-cbc
Doing aes-128 cbc for 3s on 16 size blocks: 7040280 aes-128 cbc's in 3.00s
Doing aes-128 cbc for 3s on 64 size blocks: 1902846 aes-128 cbc's in 3.00s
Doing aes-128 cbc for 3s on 256 size blocks: 486582 aes-128 cbc's in 3.00s
Doing aes-128 cbc for 3s on 1024 size blocks: 309199 aes-128 cbc's in 3.00s
Doing aes-128 cbc for 3s on 8192 size blocks: 39229 aes-128 cbc's in 3.00s
Doing aes-256 cbc for 3s on 16 size blocks: 5111478 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 64 size blocks: 1334811 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 256 size blocks: 339037 aes-256 cbc's in 2.99s
Doing aes-256 cbc for 3s on 1024 size blocks: 218483 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 8192 size blocks: 27568 aes-256 cbc's in 3.00s
OpenSSL 1.0.1e-fips 11 Feb 2013
built on: Mon Apr  7 23:06:03 CDT 2014
options:bn(64,64) md2(int) rc4(8x,int) des(idx,cisc,16,int) aes(partial) 
idea(int) blowfish(idx)
compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT 
-DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DL_ENDIAN -DTERMIO -Wall -O2 
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector 
--param=ssp-buffer-size=4 -m64 -mtune=generic -Wa,--noexecstack -DPURIFY 
-DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 
-DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM 
-DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 
bytes
aes-128 cbc      37548.16k    40594.05k    41521.66k   105539.93k 
107121.32k
aes-256 cbc      27261.22k    28475.97k    29027.92k    74575.53k 
75279.02k

I expect it would be about 70% higher on the N54L (2.2GHz) model you 
would get if you buy a new one now.


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