Messages in this thread | | | Date | Fri, 2 Aug 2013 15:34:57 -0500 | From | Alex Thorlton <> | Subject | Re: [PATCH] Add per-process flag to control thp |
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> What kind of workloads are you talking about?
Our benchmarking team has a list of several of the SPEC OMP benchmarks that perform significantly better when THP is disabled. I tried to get the list but one of our servers is acting up and I can't get to it right now :/
> What's wrong with madvise? Could you elaborate?
The main issue with using madvise is that it's not an option with static binaries, but there are also some users who have legacy Fortran code that they're not willing/able to change.
> And I think thp_disabled should be reset to 0 on exec.
The main purpose for this getting carried down from the parent process is that we'd like to be able to have a userland program set this flag on itself, and then spawn off children who will also carry the flag. This allows us to set the flag for programs where we're unable to modify the code, thus resolving the issues detailed above.
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