Promit's Ventspace

February 15, 2010

SlimTune Testers Needed

Filed under: SlimTune — Promit @ 12:58 pm

I’m currently working towards the release of SlimTune 0.2.1, which will hopefully happen before GDC. If you’ve been paying attention, that might seem a bit odd to you — 0.2.0 isn’t out yet. That’s because 0.2.0 is the pre-release version, and I need testers for it.

The idea is basically to poke around the new code, let me know about glaring omissions or failures, etc. This is a short process, so if you want to do it I need you to have sufficient time this week. I want to put the final touches in this weekend, if possible. The pre-release will install normally and won’t interfere with an upgrade to the proper release version later on.

I’m particularly interested in verification that ASP.NET is working correctly, and simple sanity checks that everything is that it should be. UI feedback is always welcome, though it may not make it into 0.2.1. In any case, if you’re interested you should email me. The address, as usual, is promit dot roy, gmail.

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9 Comments »

  1. Testing comments.

    Comment by Promit — February 16, 2010 @ 8:59 pm | Reply

  2. I added a couple of issues to the Google code page.

    Plus, with regards to performance while profiling, the average performance is better than before(with the in memory option). In fact my frame time is identical to running without SlimTune.

    However the percieved performance is quite a bit worse, ie every second or so there is a large performance spike/hitch. Makes controlling the player very disconcerting!!!

    It would be much better if there was a smaller constant performance hit from profiling. Perhaps an option to control data communication/database buffer size?

    Comment by David Black — February 18, 2010 @ 10:42 am | Reply

  3. Sounds like a case to profile the hook dll or the data visualizer… Wonder if Slim Tune can self profile?

    Comment by David Black — February 18, 2010 @ 10:44 am | Reply

    • It can, although I’m inclined to suspect the backend hook, which has not actually been profiled at all. (Is that ironic? I’m not sure.) Dunno if I can fix this for 0.2.1, but I’ll back off the frequency at which the backend sends data (which is currently set too high anyway) and see what happens.

      Comment by Promit — February 18, 2010 @ 11:29 am | Reply

  4. It seems like the inverse problem, ie the backend is buffering up too much data, then periodically processing it and causing a stall. So increasing the frequency at which it transmitts data would even out the latency, at the cost of some throughput.

    But maybe the way things are happening is not as simple as that.

    Comment by David Black — February 18, 2010 @ 12:14 pm | Reply

    • It’s run through ASIO, so the flush means I queue up a request and it happens at some unspecified point in the future. The request just gives the send a bounded block of memory, and the OS should handle the rest.

      Are you set up to recompile the backend on your own?

      Comment by Promit — February 18, 2010 @ 12:20 pm | Reply

  5. Not if it still uses ATL…

    Probably wouldnt be a major job to remove that however and make some Express solution files. If you wanted I might do that if it can be commited to SVN.

    Perhaps it is some sort of thread pool thread priority thing or the socket buffering up data.

    Comment by David Black — February 18, 2010 @ 1:38 pm | Reply

    • The ATL stuff is just COM plumbing, and honestly I have very little idea of how that works or how to replace it.

      Comment by Promit — February 18, 2010 @ 2:55 pm | Reply

  6. *Shrug* its fairly trivial.

    Comment by David Black — February 18, 2010 @ 3:14 pm | Reply


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