Changes between Version 24 and Version 25 of Tests_With_RV870


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Timestamp:
Oct 8, 2009 1:13:20 AM (15 years ago)
Author:
nakasato
Comment:

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  • Tests_With_RV870

    v24 v25  
    2323Our kernel is directly written in IL. After compilation into a machine code, I analyze the generated VLIW instructions. Results are obtained with fglrx 8.65.4 (Catalyst 9.9) and CAL 1.4beta.  
    2424 
    25 Both RV770 and RV870 archtecture has 5-way VLIW units at its heart. Depnding on detailed computations, it is supposed that the device driver (or internal compiler?) tries to fill 5-slots as much as possible. The first column shows a number of occupied slots and the second column shows a number of corresponding VLIW instructions appeared in the kernel. The third column indicates a fraction of VLIW instructions with a given number of slots. The last row presents a total numberf VLIW instructions in the kernel. 
     25Both RV770 and RV870 archtecture has 5-way VLIW units at its heart. Depnding on detailed computations, it is supposed that the device driver (or internal compiler?) tries to fill 5-slots as much as possible. The first column shows a number of occupied slots and the second column shows a number of corresponding VLIW instructions appeared in the kernel. The third column indicates a fraction of VLIW instructions with a given number of occupied slots. The last row presents a total numberf VLIW instructions in the kernel. 
    2626 
    2727=== 5870_opt kernel ===