CPU usage is quite
> > > > acceptable for now. I have 3GB of RAM, 512 allocated to Freenet.
> > >
> > > Node.db4o was 375 MB. No uploads, 1 GB of queued downloads.
> > >
> > > How often is this file written to? Anyway to queue writes in a RAM
> > > buffer and write to disk periodically?
> >
> > I don't think so, at least not easily i.e. not without a custom
> > IoAdapter able to buffer many commits separately. What I don't
> > understand is what all these writes are *for*. If it's just
> > downloads, most of the time it should just be selecting a
> > SplitFileFetcherSubSegment, fetching all the blocks in it (without
> > accessing the database), updating them all at once when they've
> > failed, and then selecting a new segment - roughly every 2 minutes.
> >
> > However, I guess if most of the fetches succeed, that produces a lot
> > more traffic. We have to write the block to disk when we fetch it,
> > look up who owns it (because many fetchers can have a claim on one
> > block), probably copy it, tell the SFFS and SFFSS about it, write the
> > update to the SFFS, and then when we've got all the blocks for a
> > segment do a load more work.
>
> My 34MiB node.db40 is written to every couple of seconds. Every-second
> writes are common. Sometimes the filesize increases -- often times it
> stays the same -- although every time it changes (according to md5sum).
> Maybe for larger .db40's this is more problematic :S. What are all
> these writes for!? :).
That's what I want to know! Do the logging changes I mentioned, find out.
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On Mon, May 11, 2009 at 4:27 PM, Matthew Toseland
wrote:
> On Thursday 07 May 2009 01:06:24 Dennis Nezic wrote:
>> On Thu, 7 May 2009 00:23:37 +0100, Matthew Toseland wrote:
>> > On Wednesday 06 May 2009 23:52:22 Juiceman wrote:
>> > >
>> > > On Wed, May 6, 2009 at 12:50 PM, Juiceman ?wrote:
>> >
On Thursday 07 May 2009 01:06:24 Dennis Nezic wrote:
On Thu, 7 May 2009 00:23:37 +0100, Matthew Toseland wrote:
On Wednesday 06 May 2009 23:52:22 Juiceman wrote:
On Wed, May 6, 2009 at 12:50 PM, Juiceman wrote:
On Wed, May 6, 2009 at 11:37 AM, Matthew Toseland
wrote:
On
On Mon, May 11, 2009 at 4:27 PM, Matthew Toseland
t...@amphibian.dyndns.org wrote:
On Thursday 07 May 2009 01:06:24 Dennis Nezic wrote:
On Thu, 7 May 2009 00:23:37 +0100, Matthew Toseland wrote:
On Wednesday 06 May 2009 23:52:22 Juiceman wrote:
On Wed, May 6, 2009 at 12:50 PM, Juiceman
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Victor - might this be your issue as well?
ROFL. So that just leaves victor...
Sorry, was away on a long weekend :-(. I'll fire up the node first thing
tomorrow with requested logging and will report back.
Regards,
Victor Denisov.
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