カテゴリ 重要度 ステータス 解決状況 登録日時 最終更新
速度解決済み修正済み2024-12-31 03:122024-12-31 05:07
 
テスターAugusto担当者hapソースtaito/bublbobl.cpp
バージョン0.271発生バージョン修正バージョン0.274
修正コミット 01e1be2プルリク
フラグ
セット tokio and clones
セット詳細
tokio - スクランブルフォーメーション / Tokio (newer)
 
概 要速度の問題。
詳 細Hello.
Thanks for reading my topic.

MAME is accuracy and precision and so will be used more CPU, but is as if that game not is related with it.
The game Tokio are having much slowdown as never had before in MAME recent versions.
Reading mameinfo.dat the last change in driver was in 0.191 not having slowdown. OS Linux kernel 6.8 Ubuntu 24.04 and CPU used is AMD FX 6 cores 3500 MHz enough for several games from 80's.

In MAME current versions that game run in 72 % speed if CPU is using power profile energy saver and 185 % speed if using power profile high performance. In comparison other game using the same driver is Bubble Bobble and run in 220 % speed if CPU is using power profile energy saver and 580 % speed if using power profile high performance.
Tokio use 2x Z80 6 MHz , 1 Z80 3 MHz and 1 MC68705P5 3 MHz and only YM2203. Not netlist in sound.
That arcade use simple graphics and now the cpu requiriment is compared with other games with much better hardware.
In MAME recent versions was done changes in Z80 core, but that changes not has done slowdowns in several others games using Z80 and Tokio not is affected because if debugging in OSD slider and overclocking all CPUs to 200 % the performance are from 72 % speed to 48 % and 185 % to 121 % speed.

That game has moments run in slowdown being strange because others games using multiple Z80 run with high speed for example xevious is 680 % speed and in same cpu run seattle driver in 85 % speed.
I not remember when that performance regression has happened. I had played that game in 12-2023 and not had that slowdown.
Have something wrong affecting the performance of that game. Tokio is simple to demand high cpu usage.

I see happening similar issue only with others games using 2 drivers : cedar_magnet and seibuspi.
Have an good week and new happy year.
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