[GNUnet-developers] insert - delete tests

[eric haumant]

Hello,

I've just run some tests on GNUnet 0.53 with a 500Mb file and GDBM. My tests
was indexing the file (insertion of 21337 blocks), downloading it locally
and deleting it several time.

Here is the results (I've done it just 3 times, it took too much time !!) :

First time :
 - insertion speed : 133 kb/s
 - download speed : 672 kb/s
 - deleting time : 18h05 (speed : 8 kb/s)
 - place used : 
      before : 180 ko
      after insert : 91,3 Mo  
      after delete : 95,5 Mo

Second time :
 - insertion speed : 86,5 kb/s
 - download speed : 672 kb/s
 - deleting time : 17h35 (speed : 8,5 kb/s)
 - place used : 
      before : 95,5 Mo
      after insert : 121,1Mo  
      after delete : 125.4 Mo

Third time :
 - insertion speed : 86,5 kb/s
 - download speed : 672 kb/s
 - deleting time :17h46 (speed : 8,4 kb/s)
 - place used : 
      before : 125,4 Mo
      after insert : 154,5 Mo  
      after delete : 187.5 Mo

The deleting speed was very slow even with indexed files. With GDBM the
delete didn't reduce the database size but increase it a bit (4Mb). We can
see that after a deletion the insertion althougt increase the database size
(25.6Mb, 29.1Mb, 33Mb) where the full indexation take 91.1 Mb. After
deletion we loose space and insertion speed.

Eric.