On 2 March 2014 03:55, <[email protected]> wrote: > checked nix/port/page.c. your duppage() is wrong.
It isn't needed at all. When a cached page is written, it's trying hard to replace the page in the cache by a new copy, to return the previously cached page. Instead, I copy the cached page and return the copy, which is what it already does in another instance. In the current version, not yet available (but soon), I do away with the page hash table entirely, so there's nowhere for the page hash chains to accumulate. Page is smaller and simpler, with a reference count but no lock.
