mridulv09

I want users to have different privileges and they should be able to access only certain commands depending on the permission level.

https://miuv.blog/2018/11/24/could-there-be-a-data-loss-in-d...

I think you are talking about optimistic concurrency, but optimistic concurrency does not perform well in cases of high contended keys.

In most of the articles which i read or have have linked in the blog, most of them were about KPTI being the mitigation for the meltdown fix.

Actually now, with context switch to kernel mode, we now have to load the page table entries ( process + kernel ) which will essentially mean flushing of the TLB. But this is a side effect of the mitigation and not the main mitigation.

https://lwn.net/Articles/741878/