Rest Api Performance

Google Groups archive
1

Dear all,
again thanks for your great tool. Setting up and running it is pretty easy. However, I have a minor question regarding the performance of the RestAPI. I have fairly large setup:

{
   "CountInstances" : 4209908,
   "CountPatients" : 1921,
   "CountSeries" : 304984,
   "CountStudies" : 3910,
   "TotalDiskSize" : "479433157680",
   "TotalDiskSizeMB" : 457223,
   "TotalUncompressedSize" : "1279822896468",
   "TotalUncompressedSizeMB" : 1220534
}

and it feels as if the restapi takes some time to "boot-up". When I use the restAPI after some time it takes pretty long to retrieve the data/information even for the smallest set i.e. the patients. After a successful call its quick again and I can actually use it for my tasks. Are the calls somehow cached? Or did I miss something?

Thanks for your help in advance!

All the best,
Bernhard S

2

Just a quick note: I'll have a look at nginx caching and optimizing the postgres table access - so maybe I might solve it myself and post the result here :slight_smile:

3

Hello,

The following FAQ discusses performance issues, and could be very useful to you:
http://book.orthanc-server.com/faq/troubleshooting.html#performance-issues

In particular, you are storing much more than the recommended 50,000 instances for SQLite (actually 80 times more). You should urgently switch to PostgreSQL.

Also, make sure that you are running a Release build (i.e. with runtime assertions turned off).

HTH,
Sébastien-