Hi, I've modified FUSE framework to take a part of user-space daemon code and moves it into the kernel fuse driver to minimize user-kernel-user switches during file system operations. An example would be caching getattr/getxattr/lookup/security checks etc. This design, therefore, create fast (served directly from the kernel) and a slow (regular fuse) execution paths. The fast and slow paths can also communicate with each other using shared memory.
I was wondering if it is possible to accelerate glusterfs using this design. What pieces could (should) be easily moved to kernel space? Any pointers would be highly appreciated. Thanks! -Riya
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