Re: 2.1.22 Performance...

[jehan procaccia <jehan.procaccia@int-evry.fr>]

Frank Swasey wrote:

> Folks,
>  Since I have complained bitterly here in the past about how bad the 
> performance was doing a slapadd of 55000 entries between ldbm and bdb 
> backends.  I feel it is of use that I should note that having upgraded 
> to RedHat9 and openldap-2.1.22 on my test machine, that ldbm now loads 
> in 10 minutes and bdb loads in 14 minutes.  That's the same performance 
> for ldbm but 21 minutes faster for bdb!
>
>  Congratulations to whoever made the change (which I assume was NOT 
> really part of the RedHat9 code, but since I don't have an RH8 box left 
> to test with, I can't be sure).
>
>  
Curious, for me perfs didn't changed !
Actually I slapadd "only" 2300 entries
openldap-2.1.22-1, RedHat 9, db-4.1.25.NC patch 1 .
$ time slapadd -f /etc/openldap/slapd.conf -l 
/tmp/dump.ldif                                                                              

real    0m45.799s
user    0m31.050s
sys     0m1.240s

same as before , however I still use a DB_CONFIG file with "set_flags 
DB_TXN_NOSYNC" .
I've also a perl script that changes the value of one attribute for all 
my entries and it take the same amount of time:
$ time ./change-attr-value.pl
2326
real    1m30.937s
user    0m11.450s
sys     0m0.440s

I don't blame these performances, they are very good for me , what I say 
is that I didn't noticed a difference between 2.1.21 and 2.1.22

By the way I've build RH 9 source and binaries packages for 2.1.22 -> 
http://www.int-evry.fr/mci/user/procacci/SRPMS/
Frank, do you still buid RH packages ? anyone else doing it ? Redhat 
still ships with openldap-2.0.27-8 :-( .