parameter strong_len in function rs_sig_file in librsync 1.0.0 (to generate the signature)

[stepha...@gmail.com]

Hi,

I have put the parameter strong_len=RS_BLAKE2_SUM_LENGTH in the function rs_sig_file. ( I use BLAKE2)
I want to test the generation of signature in rs_sig_file with strong_len=8 or strong_len=16 because with big files (size>= 4Gb) the generation of deltas files after with rs_delta_file takes a lot of time (25 minutes about with a 4.04 Gb file).I have put too a paramter block_len=1024 in the function rs_sig_file.
If I put a parameter strong_len of 8 or 16 what is the consequence ?

bests regards


Stéphane

[stepha...@gmail.com]

I have tested with strong_len=16 and with a big file it takes so long to generate a delta as with strong_len=RS_BLAKE2_SUM_LENGTH.
I have tested rdiff in 64 bits and it seems to be a little bit faster than in 32 bits.

bests regards.

stephane

[stepha...@gmail.com]

Le vendredi 20 mars 2015 09:43:14 UTC+1, stepha...@gmail.com a écrit :

I have found a solution for my problem with large files.I put the input and output buffer =16Mb -rs_inbuflen=16777216 and rs_outbuflen- and I put the size of blocks =1Mb in the rs_sig_file function.

Stephane