doc: add doc to show how to use NICE/VNICE for acceleration when usin… #38
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…g the Nuclei Model
fanghuaqi
requested changes
Aug 26, 2024
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| # 通过Profiling展示Nuclei Model NICE/VNICE指令加速 | |||
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| > 由于 Nuclei Model 仅支持Linux版本，所以此文档的测试都是基于 Nuclei Studio 的 Linux版本完成的。 | |||
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| #### step6：在 Nuclei Model 中实现 NICE/VNICE 指令 | ||
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| 此部分不是本文档的重点，用户可以通过 Nuclei Studio 中的 NICE Wizard 配置完成 **NICE/VNICE** 指令的实现模板生成，并在其中实现自己的自定义指令和指令 cycle 的添加。 |
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这里就是你的重点怎么一下子就忽略了，且没有NICE Wizard这个功能。
你需要指导用户怎么去在 Model里面实现 这个自定义的NICE指令。
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NICE指令消耗的时间不能只是一个Cycle，这里你要写清楚举例的时间。
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| 用户通过定义 Vector 寄存器以及使用上定义好的 VNICE 指令内嵌汇编如下： | ||
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| ~~~ |
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| #### step7：热点函数再分析 | ||
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| 重新编译程序代码，然后重新 run RVProf 运行 Nuclei Model，双击 `gprof0.gmon` 可以看到CPU占用率较高的热点函数已经没有 `aes_mix_columns_enc` 和 `aes_mix_columns_dec` 了： |
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这里 run rvprof里面是否有配置需要勾选去掉。消耗时间怎么配置需要讲一下。
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消耗时间指的是model跑程序timeout时间吗
added 2 commits
August 29, 2024 15:04
…tions in the Nuclei Model
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文档已经整体更新，重要部分是加入了 step6：在 Nuclei Model 中实现 NICE/VNICE 指令 |
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文档已经整体更新，重要部分是添加model如何使用NICE load/store mem，寄存器说明，以及告诉用户备份 aes_demo 为 aes_demo_nice，重新配置 RVProf以及添加新的model执行路径，再就是两个工程的profiling对比图示。 |
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此文档展示了如何使用Nuclei Model进行NICE/VNICE的指令加速，然后通过Nuclei Studio的Profiling功能分析加速前后程序性能。