Shape file is not doing well even on a powerful CPU. I have the same set of
data on a proper server with Xeon chip (Virtual Windows 2016 with 10 vCPU) the
performance is a mark improvement compare with the poor Celeron. The CPU usage
jump to 15% every time I zoom in or pan, but it still take a second to render.
I did some googling on Java and multi core/thread CPU. Seem like Java and most
software can not take full advantage of the multi core/thread provided by
hardware.
Thanks Brad for the info about PostGIS, I might have to stuck with shape file
and it lean, my design goal is portable:
1 geoserver on main server, when a team going away, all user need to do is to
robocopy the whole folder from the main server to the portable server. Lucky
GeoServer was written in Java so I can achieve this while using different OS
(main server is Windows 2016, portable server is Linux)
Might be able to do this with PostGIS but I will have to copy the database from
Windows to Linux, but it will not be a simple process for user.
Sent from Mail for Windows 10
From: br...@frogmouth.net
Sent: Thursday, 9 August 2018 11:43 AM
To: 'Tripple Tee'; geoserver-users@lists.sourceforge.net
Subject: RE: [Geoserver-users] CPU drain
There are a bunch of tips at
http://docs.geoserver.org/latest/en/user/production/index.html and you need to
benchmark (e.g. with jmeter) against your expected workload when performance
tuning.
In general, shapefile is not going to be very high performance, as noted at
http://docs.geoserver.org/latest/en/user/production/data.html#use-a-spatial-database
Brad
From: Tripple Tee <tripplete...@gmail.com>
Sent: Thursday, 9 August 2018 11:16 AM
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] CPU drain
Hi,
Please give some pointer on optimising for better resource consumption
I am running GeoServer on Linux with Intel Celeron 4-core processor, which I
know is slow
When I open an individual layer (or layer group) of a region 200km each way
(with details like roads, buildings ...) the shape files size is under 0.5MB it
loads quite comfortably, effortless to zoom and pan.
When I open a layer (or layer group) of the whole world with less detail (only
land and water lines) it seem to struggle. The size of the shape file is around
5-7MB, I can see the CPU spike and it takes seconds to render as I zoom in or
pan the map. Note: I am preview this layer on the default 750x400 resolution
box. Should GeoServer only query data of the sub region for that preview box ?
1 - Is this the expected performance ?
2 – How can I optimize it to stop the CPU spike and lag,
Thanks
Sent from Mail for Windows 10
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