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Pages: 1 Pr3tty F1y MAME Fan Reged: 07/18/05 Posts: 396 Send PM STV speed hit #307281 - 04/14/13 04:08 PM Reply Anyone know in what revision the (relatively?) recent speedhit to the STV driver went in? I just fired up Cotton Boomerang and it's ~68-81% speed on my 4.4ghz 2500k. I'm guessing it's an accuracy/sync change as my CPU aren't being maxed. Just wondering. Thanks. - PF R. Belmont Cuckoo for IGAvania Reged: 09/21/03 Posts: 9716 Loc: ECV-197 The Orville Send PM Re: STV speed hit [Re: Pr3tty F1y] #307323 - 04/15/13 06:21 PM Reply I don't see such a perf drop, and an all-2D game like CB shouldn't lag on a system like that anyway, unless you disabled the recompiler (ie, comment out SH2_USE_DRC in sh2comn.h). joey35car MAME Fan Reged: 02/07/07 Posts: 1112 Loc: Planet Claire Send PM Re: STV speed hit [Re: Pr3tty F1y] #307332 - 04/15/13 07:44 PM Reply > Anyone know in what revision the (relatively?) recent speedhit to the STV driver went > in? I just fired up Cotton Boomerang and it's ~68-81% speed on my 4.4ghz 2500k. I'm > guessing it's an accuracy/sync change as my CPU aren't being maxed. > > Just wondering. Thanks. - PF I just tried it myself using mame148u3 and now the game runs at 50%. I know this game ran 100% on this desktop system so I would try mame 148 or mame 147. Hope it's a bug and will be fixed in the next release. Edit: I just tried it again and it does lag during demo but when I actually play the game it jumps back to 100% it did drop a little but stayed pretty much at 100% Edited by joey35car (04/15/13 07:48 PM) Jason Regular Reged: 09/20/03 Posts: 552 Loc: PA Send PM Re: STV speed hit [Re: Pr3tty F1y] #307354 - 04/16/13 12:55 AM Reply Happens here too on my 3.6 They did play at 100% and now about 35-50% Edited by Jason (04/16/13 12:55 AM) joey35car MAME Fan Reged: 02/07/07 Posts: 1112 Loc: Planet Claire Send PM Re: STV speed hit [Re: Jason] #307368 - 04/16/13 05:59 AM Reply Well it must of regressed from 148 to 148u3. Plays full speed on mame64_148. When using Mame148u3 the demo and after stages it plays around 50% but when the level starts it jumps back to pretty much 100% so something happened. Hopefully it will be fixed on the next release. Anonymous Unregistered Send PM Re: STV speed hit [Re: joey35car] #307374 - 04/16/13 10:49 AM Reply > Well it must of regressed from 148 to 148u3. Plays full speed on mame64_148. When > using Mame148u3 the demo and after stages it plays around 50% but when the level > starts it jumps back to pretty much 100% so something happened. Hopefully it will be > fixed on the next release. Can't you be more specific? Tafoid I keep on testing.. testing.. testing... into the future! Reged: 04/19/06 Posts: 3135 Loc: USA Send PM Re: STV speed hit [Re: ] #307377 - 04/16/13 01:47 PM Reply > > Well it must of regressed from 148 to 148u3. Plays full speed on mame64_148. When > > using Mame148u3 the demo and after stages it plays around 50% but when the level > > starts it jumps back to pretty much 100% so something happened. Hopefully it will > be > > fixed on the next release. > > Can't you be more specific? I've researched this some.. it seems to be a valid performance hit and it seems to boil down to some rewrites that happened just after 0.148u2 was released. I don't think simple reverting of code is the answer, however. R. Belmont Cuckoo for IGAvania Reged: 09/21/03 Posts: 9716 Loc: ECV-197 The Orville Send PM Re: STV speed hit [Re: Tafoid] #307389 - 04/16/13 04:59 PM Reply > I've researched this some.. it seems to be a valid performance hit and it seems to > boil down to some rewrites that happened just after 0.148u2 was released. I don't > think simple reverting of code is the answer, however. Which rewrites? Because a perf loss of that magnitude is definitely a thing. Tafoid I keep on testing.. testing.. testing... into the future! Reged: 04/19/06 Posts: 3135 Loc: USA Send PM Re: STV speed hit [Re: R. Belmont] #307392 - 04/16/13 05:08 PM Reply > > I've researched this some.. it seems to be a valid performance hit and it seems to > > boil down to some rewrites that happened just after 0.148u2 was released. I don't > > think simple reverting of code is the answer, however. > > Which rewrites? Because a perf loss of that magnitude is definitely a thing. I was r21002 as a strong possibility.. replaced a section of code from before/after and noticed most of my speed returned (regarding "get_window_pixel" routine). joey35car MAME Fan Reged: 02/07/07 Posts: 1112 Loc: Planet Claire Send PM Re: STV speed hit [Re: Tafoid] #307446 - 04/17/13 05:24 PM Reply Well hopefully they will rewrite it and not forgot about it so it doesn't fall through the cracks. Kale Il Sindaco Reged: 09/26/03 Posts: 155 Loc: Naples, Italy Send PM Re: STV speed hit [Re: R. Belmont] #307675 - 04/23/13 01:26 AM Reply > > I've researched this some.. it seems to be a valid performance hit and it seems to > > boil down to some rewrites that happened just after 0.148u2 was released. I don't > > think simple reverting of code is the answer, however. > > Which rewrites? Because a perf loss of that magnitude is definitely a thing. Window effect rewrite, yes. But anyway, one of the things that must be done is a complete rewrite of VDP1/2, if I ever get around in taking inspiration in working with MAME/MESS anymore ... Pages: 1

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