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Can "Slow HDD access" be made SLOWER?
Can "Slow HDD access" be made SLOWER? –
After testing a few different games that are affected by the "Slow HDD access" compatability mode and seeing an improvement when enabled on certain problematic titles [See below] it's got me to wondering whether or not this mode could be further enhanced. This is a variable that as far as I know, has remained untouched in HDLoader.
Something else that pointed me towards this theory was certain games that are incompatible with HDLoader, yet run from USBAdvance (which is slow as hell) and yes, they are two completely different applications, but due to the fast loading speed of HDLoader, even with Slow HDD enabled, maybe this is causing crashes in the loading process.
What I would like to know is firstly could this be a possible solution for some games, and secondly if it is, has anyone looked into this, and how hard would it be to Slow HDD access even further?
[e.g. Midnight Club 3 where song titles can be seen scrolling during gameplay at a phenomenal rate, but benefits from Slow HDD access.... The Urbz: Sims In The City PAL which randomly freezes but greatly benefits From Slow HDD access, and SOCOM II PAL which can be played from my system very occasionally, but only when SLOW HDD is enabled, other compat modes seem to have little or no effect]
Last edited by accadeecee; 05-15-2005 at 10:50 AM.
well theres some interesting news when it comes to that. You see we all assumed that usbadvance would be some sort of hdloader re-hash or ripoff. This is simply not the case at all. USBAdvance is actally written much better than hdloader. Just viewing it in a disassembler you can clearly see the person involved with USBExtreme is a much more skilled than sjeep. Unfortunately they had the wrong train of thought when they went to using USB for this.
I can only assume that their work can easily be adjusted by the coders to support an IDE interface. If thats the case then sjeep definetely has something to worry about. Thats also why he wants everyone to continue to think that this is a rip of his work. Its not.
It does have a much more complete implementation of the cd stream functions but to be fair hdloader gets the data fast enough from the ide disk that it doesn't have to worry about cacheing the streamed data.
But some games require that the caching exists, i think! They assume that data is cached, and whe it's not and hdloader has to re-read it, even though it's fast, its' not fast enough, an interrupt is missed, and the game crashes because of it.
that's gotta be it! Casule monster colluseum is NOT dummied, and streams off the disk. how can they make such a game ruhn ithout dummying it? by taking advantage of caching.
Last edited by _zaphod_; 05-15-2005 at 06:42 PM.
That would only apply to those games which acually use the stream api. The newer ones include CDVDSTM.IRX.
Originally Posted by _zaphod_
Well, that IRX file is indeed included with the game. But maybe it also uses te stream API manually when it's not playing videos? And iof that is the case, then writing a better stream API for hdloader would probably solve a number of issues.