On Tue, Jan 20, 2004 at 03:51:32AM +0100, Someone wrote:
After more experiments with the node it seems like it needs way
more memory than I can give it. I stopped all other services running
on the machine and give fred the whole 192 MB that were not needed
by windows. With this it managed to run 15 hours before running out
of memory. So it seems to me that it is not possible to run fred
on my machine. The node is now down and will stay down in the next
time.
Try reducing the maximumThreads.
It is not only the memory usage, the node simply needs to much
attention. Because everytime it stalls it starts to eat up all
CPU cycles and actually blocks/slows down the other services
running on the machine. Reducing the priority of the node makes
What sort of machine are you running it on? I don't think it's a vital
project goal for fred to run well on a 300MHz machine.
it stall even faster, so this is equal to stopping it. In addition
the Traffic due the constant rising ammount of querys and connects
did to not only DOS my node, it also started to DOS my whole
internet connection and it took several hours till it normalized
after shutting down the node. So it is not possible to simple switch
of the node if I need the full bandwith of my connection for other
things.
I also can't understand why a program thats moving data from one
peer to another needs this *big* ammount of memory and cpu cycles.
It probably could be optimized significantly w.r.t. memory. With regard
to both - there are two things. One is java - java is pretty inefficient
with memory usage, and always has been, and always will be. However on
the whole this is not a huge problem, and we cannot simply rewrite Fred
in C++/C/Perl/Python/Logo/Brainfart/Assembly, because it is ~ 140,000
lines of code, as well as for political and portability reasons. Another
is that Freenet is doing hard stuff, that is not clearly known to work,
the basic principles are still being established, and so on.
I'm running a well used IRC bouncer, a private Webserver, a MySQL
DB and more on the same machine. All of them together only take
about 60 MB of memory and 10% to 15% cpu cycles when they are at
their configured maximum usage at the same time (neighter memory
nor cpu usage got higher than this in the last year). I do expect
fred to need more because of routing and crypting but not that
much that it needs now.
We can probably get Fred to use 100MB of RAM in the default config.
Eventually. However in the time it takes to get there, 100MB of RAM will
be so cheap that there will be little point.
I know that freenet is still under development and that it is a
really hard task to get something like this to a point where it
is running really well (especially when using a slow ressource
hog like java as base). So I'm keeping an eye on the mailing list,
maybe there will be a break through in the near future making it
possible to run fred on a machine like mine without it freaking
out and beeing a major pain in the ass for my machine (I really
hope so).
--
Matthew J Toseland - [EMAIL PROTECTED]
Freenet Project Official Codemonkey - http://freenetproject.org/
ICTHUS - Nothing is impossible. Our Boss says so.
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