On Mon, Jun 20, 2016 at 11:00 AM, Josh Poimboeuf <[email protected]> wrote:
> > From: Josh Poimboeuf <[email protected]> > Subject: [PATCH] perf: add 'perf bench syscall' > > Add a basic 'perf bench syscall' benchmark which does a getppid() system > call in a tight loop. > My one suggestion would be to use a different syscall than getppid(), as getppid() can have unusual performance characteristics on kernels with pid namespaces enabled. I'm a fan of prctl(-1, 0, 0, 0, 0).
