to make it more clear for people who think "my single process has to
utilize my hardware":
you won't get far when you complain why your webserver does not utilize
your CPU and memory as much as you like it because it spends most of the
time by wait for the overloaded database-server which can not serve more
concurrency
in that case you need a database cluster to spread at least your
select-queries over more than one instance to reduce the impact of lockings
and that may work well even if that instances are on the same host in
multiple virtual machines because even HPC setups exists in the real
world who prove that theory - welcome in 2017!
https://gcn.com/articles/2014/07/11/vgrid-hpc-virtualization.aspx
http://www.zdnet.com/article/yes-virtualization-is-faster-sometimes-than-native-hardware/
"However, by partitioning each host into two or four virtual machines,
they were able to get significantly better performance"
Am 08.01.2017 um 03:23 schrieb Reindl Harald:
Am 08.01.2017 um 03:19 schrieb Fábio Fernandes:
In my opinion i think that those resources would be better spent on
openvassd process since it does the heavy lifting.
when the bottleneck are shared ressources used by openvassd it can't do
anyhting about it and so you need to get rid of the concurrecncy by just
have more of this ressources aka more instances
No dia 08/01/2017, às 00:59, Reindl Harald <h.rei...@thelounge.net>
escreveu:
Am 08.01.2017 um 01:30 schrieb TN TN:
HI Christian, I actually have it installed with postgresql, but when
you're scanning thousands of internal hosts on a weekly basis it slows
it down considerably over time.. I'm just curious on why openvasmd is
not using enough resources on the server. Thanks TN
because they are not available which means you assume the bottleneck
likely where it isn't - when you scan thousands of hosts how do you
come to the conclusion at a single openvas machine will be enough?
just install *more* instances as virtual machines when you say you
are not cpu-bound and have enough memory and spread the load -
problem solved
On 7 January 2017 at 17:09, Christian Fischer
<christian.fisc...@greenbone.net
<mailto:christian.fisc...@greenbone.net>> wrote:
Hi,
On 07.01.2017 19:43, TN TN wrote:
> Hi, I have a fairly powerful server and it seems like the
openvasmd
> process isnt using up alot of the resources on the box. If I run
> numerous scans (the scanner being off of the main openvasmd
server), the
> openvasmd process barely uses any resources, however Greenbone
slows
> down and the backend commands take much longer to execute. Is
there a
> way to force openvasmd to use more resources (CPU/Memory) so
that it
> runs faster? Thanks, TN
i don't think this is possible and it also probably wouldn't help
here.
The manager process is using the resources it needs.
I think the bottle neck is more likely the sqlite database
backend which
slows down if multiple scanners are sending data to the manager.
Have a
look at the postgresql database backend which might help to
improve the
performance.
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