Re: Page fault scalability patch V18: Drop first acquisition of ptl

Christoph Lameter
2005-03-03T05:19:31Z

On Thu, 3 Mar 2005, Paul Mackerras wrote:

> More generally, I would be interested to know what sorts of
> applications or benchmarks show scalability problems on large machines
> due to contention on mm->page_table_lock.

Number crunching apps that use vast amounts of memory through MPI or
large databases etc. They stall for a long time during their
initialization phase without these patches.