On 28/01/14 10:54, Ewa Szwed wrote:
Hi,
Thanks so much for this answer.
I am definitely going to test the changing order of filter/binding
constructs.
For my system configuration I run Jena and Fuseki on one virtual machine
with Linux Red Hat distribution and of 8 cores CPU, 64 GB RAM and 1.2 TB
hard drive.
I have configured Fuseki java -Xmx to 12000M.
Too large for TDB unless you are doing large update transactions.
Most of the memory used is out-of-heap.
My jena data directory size is 175 GB
I am storing more than 2 000 000 000 triples (the number of facts in
Freebase).
Ewa
Ewa,
Could you try an experiment for me please?
Could you see if changing the "swapiness" makes a difference?
Normally it's 60 but if you could try, say, 40, 20, 10, 0. There have
been reports of odd effects reported but no reproducible test cases.
Andy
[1]
https://access.redhat.com/site/documentation/en-US/Red_Hat_Directory_Server/8.2/html/Performance_Tuning_Guide/system-tuning.html
http://askubuntu.com/questions/103915/how-do-i-configure-swappiness
