[389-users] Re: ldap perfomance

On Thu, 2018-09-06 at 08:55 -0600, David Boreham wrote:
>
> On 9/6/2018 8:50 AM, isabella.ghiurea@nrc-cnrc.gc.ca wrote:
> > This does not justify this since running 1 tread
> > takes 0.1564msec/op and running 10 threads takes 0.0590ms/op and
> > the last one will require the access.log to be flush more
> > frequently I think for 10 threads and I do not see the
> > spike in exec time showed for 1 thread. Maybe something else ?
> > _______________________________________________
> >
>
> I think, looking at the data you posted, the question you're asking
> is
> "why, when I subject my server to a continuous search operation load,
> do
> some operations have much longer latency than others?".

If they are doing the same operation repeatedly, then it *is* an issue
because it shows that within the server architecture there is a flaw
that causes non deterministic behaviour.

I have observed this behaviour myself, and traced it to logging (I did
a server build with log_* as a stub function).

But there are plenty of other places in the code which could be issues
- I know plenty of them, but time is the enemy of all things :)

--
Sincerely,

William
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