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More => Old Versions => Media Center 11 (Development Ended) => Topic started by: BuiltToSpill on March 20, 2004, 05:56:34 pm

Title: CPU usage between tracks
Post by: BuiltToSpill on March 20, 2004, 05:56:34 pm
Ive noticed within the 10.0 builds that between tracks and even in long silences during tracks, my computer slows to a crawl and the CPU usage skyrockets.
Has this been touched on before  ?


Media Center Registered 10.0.95 --
Microsoft Windows XP  Workstation 5.1 Service Pack 1 (Build 2600)
Intel Pentium 4 1793 MHz MMX / Memory: Total - 260 MB, Free - 46 MB

Internet Explorer: 6.0.2800.1106 / ComCtl32.dll: 5.82 (xpsp1.020828-1920) / Shlwapi.dll: 6.00.2800.1400 / Shell32.dll: 6.00.2800.1233 (xpsp2.030604-1804) / wnaspi32.dll: N/A
Ripping /   Drive D: LITEON  DVD-ROM LTD163    Mode:Normal  Type:Auto  Speed:Max
  Drive E:   Mode:Normal  Type:Auto  Speed:Max
  Digital playback: Yes /  Use YADB: Yes /  Get cover art: No /  Calc replay gain: Yes /  Copy volume: 32767
  Eject after ripping: No /  Play sound after ripping: No  

Burning /  Drive E: HL-DT-ST CD-RW GCE-8400B    Addr: 1:1:0  Speed:32  MaxSpeed:40  BurnProof:Yes
  Test mode: No /  Eject after writing: Yes /  Direct decoding: Yes /  Write CD-Text: No
  Use playback settings: No /  Normalization: None
Title: Re:CPU usage between tracks
Post by: ZRocker on March 20, 2004, 06:02:41 pm
Do you have the Do not play silence option enabled (under Options > Playback)?  If so, don't do that.
Title: Re:CPU usage between tracks
Post by: BuiltToSpill on March 22, 2004, 05:59:11 pm
Nope. I never had it enabled.
Title: Re:CPU usage between tracks
Post by: Matt on March 22, 2004, 06:03:33 pm
Does turning DSP (equalizer, etc.) on or off make a difference?

Are your files on a slow source?

With a 1.8 Ghz, you should be able to play fullscreen games with MC cranking in the background and not know the difference.
Title: Re:CPU usage between tracks
Post by: BuiltToSpill on March 23, 2004, 03:49:25 pm
mmmm,  when i turn off the effects in DSP, the lagging stops...
Title: Re:CPU usage between tracks
Post by: Matt on March 23, 2004, 03:59:49 pm
The problem is that some CPU's get really slow when dealing with numbers close to 0, which can happen when a bunch of silence is passed through the DSP chain.

If you can isolate what DSP effect / equalizer does it, we may be able to work around it.

Thanks.
Title: Re:CPU usage between tracks
Post by: BuiltToSpill on March 23, 2004, 07:42:16 pm
Matt,
Its the virtual subwoofer in the DSP.  
Title: Re:CPU usage between tracks
Post by: DocLotus on March 25, 2004, 08:55:34 am
Hi Built;

One thing that I noticed is that you seem to have too little memory on your Win XP system.

The screen you provide shows only 260MB total (I assume you have a 256MB) which is totally inadequate for Win XP.

Yes, 256MB does allow you to run XP, but just barely.  512MB is generally considered to be the "Sweet Spot" for XP & allows all programs to run more freely with less processor usage & less swap file usage which can really slow things down a lot.

Many systems today come with 1GB of memory.

I was running 512MB on my XP Pro 2.2GHz system but was sometimes running low on memory so I upgrade to 1GB & now the swap file is seldom needed.

When a computer starts to run low on memory it starts using more & more swap file (a space set aside on your hard drive as virtual or swap memory).  This will cause a slow down in your computer.

I notice that you only have 46MB of free memory.  That may be part you're the problem.

A friend of mine had only 256MB on his Win XP system & was having all kinds of problems running programs.  Adobe Acrobat refused to run at all saying that there was insufficient system memory.  WinFax Pro was taking forever to assemble a large database to send mailings to club members.

After we added an additional 256MB to bring him up to 512MB all of those problems disappeared.  Acrobat now loads without complaint, & WinFax does the same job in 1/5th the time it used to take.

Memory is dirt cheap today & there is no reason to be running only 256KB on an XP system.
Title: Re:CPU usage between tracks
Post by: BuiltToSpill on March 25, 2004, 05:26:19 pm
Thanks Doc, I appreciate the advice!

I'll look into some more memory.