2x Intel(R) Xeon(R) CPU X5560 @ 2.80GHz

CPUs 2 / cores 4 / threads 16

CPU :	family , model 26 and stepping 5
model name :	Intel(R) Xeon(R) CPU X5560 @ 2.80GHz
cpu MHz :	1600.000 /2801.000
cache size :	8192 KB
flags :	fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dts tpr_shadow vnmi flexpriority ept vpid
bogomips :	5599.19

Mainboard :	Supermicro X8DAH+-F_
Memory :	96G DDR3 @ 1333 ECC
Memory benchmark (hdparm) :	8823.29 MB/sec
HD benchmark (hdparm udma6) : (Intel X18-M/X25-M/X25-V G2 SSDs)	188.78 MB/sec

OS:openSUSE 11.4

openSSL benchmark:

linux:~> openssl version

OpenSSL 1.0.0k 5 Feb 2013

linux:~> openssl engine

(aesni) Intel AES-NI engine (no-aesni)
(dynamic) Dynamic engine loading support

linux:~> openssl speed -evp aes-128-cbc rc4 blowfish
The 'numbers' are in 1000s of bytes per second processed.

type	16 bytes	64 bytes	256 bytes	1024 bytes	8192 bytes
rc4	333908.14k	358351.93k	322019.06k	324682.66k	319383.89k
blowfish cbc	108741.83k	113345.84k	113786.26k	111634.15k	113263.30k
aes-128-cbc	86397.43k	95110.10k	98164.18k	98861.21k	100087.61k

openSSH benchmark:

Create big empty file (1Gb file)

dd if=/dev/zero of=bigfile count=0 seek=2000k  

ssh benchmark - to localhost.

scp bigfile localhost:/dev/null 
for i in aes128-cbc blowfish ; do scp -c  bigfile localhost:/dev/null ; done

bigfile.nmRm2q76y1                                 100% 1000MB  62.5MB/s   00:16    
bigfile.nmRm2q76y1                                 100% 1000MB  47.6MB/s   00:21    
bigfile.nmRm2q76y1                                 100% 1000MB  71.4MB/s   00:14    

default :	62.5MB/s
aes128-cbc :	47.6MB/s
blowfish :	71.4MB/s

encrypted ramdisk test:

It is evident, thate there is some distortion due to the write cache: the machine has 96GB ram vs 1.5G ramdisk size.

	unencrypted		encrypted
blocksize	write speed	read speed	encrypt speed	decrypt speed
512	475.249	797.113	543.139	119.374
1k	788.407	1220.117	702.260	118.573
2k	1053.555	1314.705	1029.413	123.860
4k	1290.156	1972.262	1286.758	122.882
8k	1386.975	2218.426	1407.089	120.780
16k	1451.842	2299.632	1454.362	120.326
1M	1478.007	1482.638	1486.723	120.268

size: 1500 megabytes, cipher: aes-cbc-essiv:sha256, key: 256b

In the next test I have specified oflag=direct in the write/encrypt phase of the test:
  dd if=/dev/zero of=/mnt/cryptramdisk/testfile bs=$i oflag=direct 
 

	unencrypted		encrypted
blocksize	write speed	read speed	encrypt speed	decrypt speed
512	73.683	855.768	6.802	119.000
1k	117.380	986.258	29.959	125.969
2k	213.170	1432.815	44.993	127.687
4k	390.188	1584.645	74.000	127.211
8k	721.074	2281.958	85.902	126.657
16k	1188.749	1471.006	89.185	124.285
1M	2412.269	2280.647	106.671	124.164

size: 1500 megabytes, cipher: aes-cbc-essiv:sha256, key: 256b, dd: oflag=direct