On 05/04/2013 05:24 AM, Alexander Puchmayr wrote:
Hi there, How much memory is virtuoso supposed to use? If I got it right, it shall use no more than the setting in System Settings/Desktop Search/Extended Settings/Memory usage, which is in my case 128MB. Now look at the real memory consumtion (from htop) PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command 18831 alex 39 19 2633M 1900M 4440 S 0.0 48.1 17:55.39 /usr/bin/virtuoso-t +foreground +configfile /tmp/virtuoso_T18826.ini +wait It uses a virtual range of more than 2.5GB and keeps nearly 2GB locked in memory (which is half of the available RAM). Is this *really* necessary? What is virtuoso doing with all that memory and why is the setting in System Settings obviously ignored? And the most important question is, how to make virtuoso use a reasonable amount of memory? BTW: I'm using kde-4.10.1 and virtuoso-server-6.1.6 on a gentoo system (amd64)
This is odd. Apparently, after the upgrade, I am using virtuoso again. IAC, I set it to 128 MiB and it has not quite reached that amount for virtual memory.
I did configure Nepomuk indexing to only index the current user directory. That might reduce memory usage.
IAC, the figure to worry about is the RESident memory usage. And, yes, 1,900 MiB does appear a bit high. Although, much of this is going to get swapped out to disk -- almost all of it will be swapped out when it isn't active.
Do you have sufficient swap memory. When I installed my new disk, I went from 8 GiB to 32 GiB of swap which is currently that same as infinite swap because IIUC, the Kernel won't use that much.
You can increase use of swap memory -- but this will slow down indexing -- by setting: "/proc/sys/vm/swappiness" to a higher value (up to 100) to free up more RAM for other uses.
But, this doesn't address the question of why it is using that much RAM. How do you have Nepomuk configured? Is it set to index the whole disk, or just your user directory? I think that it uses more memory, the more it indexes.
Other than that, I really don't know. But, there could be a problem. -- James Tyrer Linux (mostly) From Scratch -- James Tyrer Linux (mostly) From Scratch ___________________________________________________ This message is from the kde mailing list. Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.
