Re: Reg slowness seen in openssl 1.1.1

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On 10/05/19 03:16, ramakrushna mishra wrote:
Hi ,

The results on a AIX machine looks more bad If I am interpreting them correctly.

openssl 1.1.0e :
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes  1024 bytes   8192 bytes  16384 bytes sha1             65019.16k   151552.49k   266107.41k  337113.93k   360792.93k   364102.89k


openssl 1.1.1 :
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes  1024 bytes   8192 bytes  16384 bytes sha1             10641.28k    21433.09k    38464.85k 48496.92k    49381.38k    51755.48k


the numbers for openssl 1.1.1 seem wrong - I've ran a similar test on a POWER8 and POWER9 box and the results for a "out of the box compiled" openssl 1.1.0 vs openssl 1.1.1 are much closer. The only difference I did see was the (obsolete) sha1 test on Power8:  openssl 1.1.1 seems to be a bit slower than 1.1.0, but not by a factor of 7 as shown above.

Also, on both POWER8 and POWER9, there does not appear to be a major difference in blowfish or aes-256 speed.

As for your code: I would check that you are not using a no-asm build for openssl 1.1.1.

HTH,

JJK




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