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Update ReadMe: add AllowVkPipelineCachingToDisk

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jaxl 2021-01-19 15:13:42 +08:00
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README.md
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@ -238,12 +238,13 @@ The driver exposes many settings that can customize the driver's behavior and fa
Some example settings are listed below:
| Setting Name | Valid Values | Comment |
| ------------------------ | ----------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| `ShaderCacheMode` | 0: disable cache<br/>1: runtime cache<br/>2: cache to disk | Runtime cache is the default mode. For "cache to disk", the cache file is generated under $AMD_SHADER_DISK_CACHE_PATH/AMD/LlpcCache or $XDG_CACHE_HOME/AMD/LlpcCache or $HOME/.cache/AMD/LlpcCache |
| `IFH` | 0: default<br/>1: drop all submits<br/> | Infinitely Fast Hardware. Submit calls are dropped before being sent to hardware. Useful for measuring CPU-limited performance. |
| `EnableVmAlwaysValid` | 0: disable<br/>1: default<br/>2: force enable<br/> | 1 is the default setting which enables the VM-always-valid feature for kernel 4.16 and above. The feature can reduce command buffer submission overhead related to virtual memory management. |
| `IdleAfterSubmitGpuMask` | Bitmask of GPUs (i.e., bit 0 is GPU0, etc.) | Forces the CPU to immediately wait for each GPU submission to complete on the specified set of GPUs. |
| Setting Name | Valid Values | Comment |
| ------------------------------ | ----------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| `AllowVkPipelineCachingToDisk` | 0: disallow<br/>1: default<br/> | 1 is default value which enables Pal's archive-file based caching.<br/>The archive-file is stored under ~/.cache/AMD/VkCache. |
| `ShaderCacheMode` | 0: disable cache<br/>1: runtime cache<br/>2: cache to disk | Runtime cache is the default mode. For "cache to disk", the cache file is generated under $AMD_SHADER_DISK_CACHE_PATH/AMD/LlpcCache or $XDG_CACHE_HOME/AMD/LlpcCache or $HOME/.cache/AMD/LlpcCache |
| `IFH` | 0: default<br/>1: drop all submits<br/> | Infinitely Fast Hardware. Submit calls are dropped before being sent to hardware. Useful for measuring CPU-limited performance. |
| `EnableVmAlwaysValid` | 0: disable<br/>1: default<br/>2: force enable<br/> | 1 is the default setting which enables the VM-always-valid feature for kernel 4.16 and above. The feature can reduce command buffer submission overhead related to virtual memory management. |
| `IdleAfterSubmitGpuMask` | Bitmask of GPUs (i.e., bit 0 is GPU0, etc.) | Forces the CPU to immediately wait for each GPU submission to complete on the specified set of GPUs. |
*All* available settings can be determined by examining below source files that define them.