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Re: performance & benchmarking

At 10:11 AM 10/4/99 -0700, casey@seattle.gii.net wrote:

This list is for discussions related to the development of
OpenLDAP software.  Questions concerning the use of OpenLDAP
software belong on the software list (see list charters at
http://www.openldap.org/lists/).   Questions specific to some
other vendors belong on vendor-specific mailing lists.  General
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>We've been using the umich ldapserver and later openldap for a number
>of small projects, and have never really had a lot of problems with 
>performance, but lately the requirements have gone up quite a bit, and we're 
>now looking at implementing solutions for upwards of 10,000,000 entries 
>in a directory, 10 - 20 read operations/sec and upto 10 write operations/sec.

See the software list archives and FAQ on how to tune OpenLDAP to
achieve such goals.

>We've looked at innosoft's idds and icl's i500 servers, which atleast claim 
>to be able to handle large amounts of entries, and promise fairly painless 
>scalling to distributed systems... but what I havent seen are actual 
>benchmarks with real-life applications. Can anyone help ? 

I suspect they (or any major LDAP vendor) could handle the above
load without much problem...  though some scale better than others.
I assume they have a forum you can ask such questions in....

>Has anyone established the limits of the openLDAP server ?

In general, >10 write-ops/second and >100 read-ops/second is
achievable using CHEAP pc-clone hardware (with tuning/configuration
to avoid write syncs).  Scaling to 10M entries can be challedging.

>Or found ways to make it perform better under high load ?

See software list archives + FAQ.

>How about distributed setups with a caching proxy for example ? 

We don't have a caching proxy (yet).  We have replicas (with