Hi Jean, Thanks for the quick reply!
I was able to recompile ntfs-3g by defining all the cache sizes except CACHE_SECURID_SIZE as 0. But it seems securid cache cannot be disabled. So I have one more dumb question for you. Can you please tell me why is that? I'm also not sure what type of data/files are stored in the different caches. So, it would be great if you can point me to some kind of documentation about ntfs-3g internals, if any. Thanks again! Best, Akshay On Fri, Jun 21, 2019 at 12:57 AM Jean-Pierre André < jean-pierre.an...@wanadoo.fr> wrote: > Akshay Ajayan wrote: > > Hi, > > > > I don't know if this is the right place to ask this question, so if it > > is not I apologize for sending this mail. I tried to ask this question > > on the tuxera forum, but I guess the registration is closed now. > > > > For testing purposes, I wanted to know whether there is anyway to > > disable all forms on caching(read, write etc) in ntfs-3g. Or to compile > > it with caching disabled. If there is, it would save a lot of time and > > effort for my project. > > The caches maintained by ntfs-3g can be disabled by redefining > their sizes in include/ntfs-3g/param.h and recompiling. > These are the standard sizes : > > #define CACHE_INODE_SIZE 32 /* inode cache, zero or >= 3 and not too > big */ > #define CACHE_NIDATA_SIZE 64 /* idata cache, zero or >= 3 and not too > big */ > #define CACHE_LOOKUP_SIZE 64 /* lookup cache, zero or >= 3 and not > too big */ > #define CACHE_SECURID_SIZE 16 /* securid cache, zero or >= 3 and not > too big */ > #define CACHE_LEGACY_SIZE 8 /* legacy cache size, zero or >= 3 and > not too big */ > > This will have no impact on the caches maintained outside > ntfs-3g. > > > > > In the forums, I found that write caching can be disabled using the sync > > option, don't know if that still works, as it is not shown in the man > page. > > The option sync forces synchronous writings to the device, > and has the effect of disabling the write cache. It is not > described in the ntfs-3g manual because it is a standard > mount option. > > Of course disabling caches has a bad effect on performance. > > Jean-Pierre > > > > > _______________________________________________ > ntfs-3g-devel mailing list > ntfs-3g-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ntfs-3g-devel >
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