Faster than Real-Time - laysim-gr740-mdbt

laysim-gr740-mdbt (Multi-thread DBT)


I'm really proud to release laysim-GR740 v1.2 with laysim-gr740-mdbt. 

laysim-gr740-mdbt is a new parallel GR740 processor emulator which adopts the multi-thread framework with DBT through 2 years development by KARI. It can satisfy the real-time performance of GR740 on a high-end PC such as Intel i9-11900K @5GHz.


Below Figure is a graph comparing the real-time performance and cycle accuracy of the most representative tests among all tests. laysim-gr740-dbt outperforms the real-time performance of GR740 on Dhrystone with 334.69%, and it can meet the real-time performance on Whetstone with 120.19%. But laysim-gr740-dbt cannot meet the real-time performance for some RTEMS 5.1 SMP examples which utilize almost 100% CPU load with 4 cores and its execution time is more than 5 seconds under the SMP environment. 

Only laysim-gr740-mdbt can meet the real-time performance of GR740 under RTEMS SMP environment. 

laysim-GR740 v2.0 with laysim-gr740-mdbt can be downloaded from Download Article (https://layright.blogspot.com/2020/02/download-laysim-leon3.html).




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