Imaze, I'll be looking forward to seeing your contribution coming on
mantis. Along with Melanie's improved Cache.cs, and the simplistic
GlynnTucker cache, we'll have a good set of mem cache options to compare.
One thing I'd like to point out to everyone is that this particular
piece of
...@metaverseink.com
Sent: Thursday, 28 May 2009 7:40 AM
To: opensim-dev@lists.berlios.de
Subject: Re: [Opensim-dev] Memory cache
Imaze, I'll be looking forward to seeing your contribution coming on
mantis. Along with Melanie's improved Cache.cs, and the simplistic
GlynnTucker cache, we'll have a good
From a quick glance at the code it looks like it's keeping seldom used
objects in memory and increasing memory usage. This may be causing portions
of memory to swap out where they may not have before. When retrieving the
asset, it would need to swap it back in and it may have to do it in several
My hunch is the same as yours, i.e. that a file system cache is the
right thing to do here. There's no point in holding on to assets in
memory after they have been sent to clients, given how fast they can be
retrieved from the file system when the next client comes along. Since
this is all
d...@metaverseink.com wrote:
I noticed we have GlynnTucker.Cache.dll in the distribution, and this
wasn't being used. I have no idea what the story is, but since it's
there, I did one alternative cache module implementation using it, just
to see what happens. Since everything is modularized
Justin Clark-Casey wrote:
fyi, the GlynnTucker library was being used until recently in the original
OpenSim/Framework/Communications/Cache/AssetCache.cs, which is why it's there.
Ahhh! That explains the mystery. Sorry, it's hard to put all these
historical pieces together, I only started
In fact, it must be a BSD compatible license for all parts to be
eligible for core. If any part is not licensed under a BSD
compatible license, then it would have to live on Forge, which hosts
other licenses.
Melanie
d...@metaverseink.com wrote:
Imaze, this is awesome! Thank you so much for
Hi Again!
Adding BSD compatible licence to the cache (CnmHashGenerationCache) is
not problem (if I have understand right BSD licence still allows me to
use it my closed source database project). I also have some ideas how to
add time based expiration and how user could define to configuration
Hi,
Imaze Rhiano wrote:
Adding BSD compatible licence to the cache (CnmHashGenerationCache) is
not problem (if I have understand right BSD licence still allows me to
use it my closed source database project).
As the original creator, you can license the code as BSD to OpenSim,
but later
Imaze,
if you are doing work from scratch, you always have the option to keep a
proprietary version for yourself, whilst releasing one version as BSD. As long
as you're not using code that any other OpenSim developer has committed, all
rights still belong solely to you.
Before jumping
Just a quick note to inform everyone that word from osgrid folks
indicates that the asset cache is still borked and still a mystery. When
it is on, CPU usage spikes to unsustainable values (150% with 4 avies in
WP).
If anyone cares to take a look at it / replace it with something else,
please
If we ran a profiling with this cache maybe we could see where the
bottle neck is, couldn't we?
Mono has simple statistical profiler that shouldn't be too intruding:
$ mono --profile=default:stat program.exe
If anyone who saw this performance loss could test this, would be
interesting to see
I noticed we have GlynnTucker.Cache.dll in the distribution, and this
wasn't being used. I have no idea what the story is, but since it's
there, I did one alternative cache module implementation using it, just
to see what happens. Since everything is modularized now, replacing the
asset cache
: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external caching library I believe, it could be sitting in
there.
Adam
-Original Message-
From: opensim-dev-boun
regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external caching library I believe, it could be
sitting in there.
Adam
then be to break the binaries apart into byte cucks
smaller than the LOH trshold.
Best regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external
.
Best regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external caching library I believe, it could be
sitting
would then be to break the binaries apart into byte cucks
smaller than the LOH trshold.
Best regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We
trshold.
Best regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external caching library I believe, it could
: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using an external caching library I believe, it could be
sitting in there.
Adam
-Original Message-
From: opensim-dev-boun
would then be to break the binaries apart into byte cucks
smaller than the LOH trshold.
Best regards,
Stefan Andersson
From: a...@deepthink.com.au
To: opensim-dev@lists.berlios.de
Date: Wed, 20 May 2009 17:21:51 -0400
Subject: Re: [Opensim-dev] Memory cache
We are using
Mic Bowman wrote:
Maybe I'm missing something because I have no idea what I'm right about...
Hehehe. You're right in pointing to that piece of code, which is not
used anymore, and it's critically important for this puzzle :-) That old
code is Framework.Cache.AssetServerBase and
Here's an unexpected outcome of the wobbling last weekend.
Many sims in OSGrid are now experiencing huge performance improvements,
both in memory consumption and general speed -- much faster teleports,
script loadings, etc. This got me completely puzzled, because we didn't
do anything to
Yay for mistakes that end in gains!!! of course if anyone asks i planned
this ;P anyway i thought people would like to see my ini changes.. this is
what lead to the discovery:
[OpenSim.ini]
; The following is the configuration section for the new style grid
servers
; If you don't know
@lists.berlios.de
Subject: Re: [Opensim-dev] Memory cache
The surprise really is that the cache would be a performance loss
instead of a performance gain. What is there that makes it so slow?
Melanie
Frisby, Adam wrote:
As chief engineer aboard the USS OSgrid, I might want to recommend
against
...@lists.berlios.de] On Behalf Of Melanie
Sent: Wednesday, 20 May 2009 1:56 PM
To: opensim-dev@lists.berlios.de
Subject: Re: [Opensim-dev] Memory cache
The surprise really is that the cache would be a performance loss
instead of a performance gain. What is there that makes it so slow?
Melanie
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