Messages in this thread | | | Date | Mon, 16 Aug 2004 05:20:36 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] voluntary-preempt-2.6.8.1-P0 |
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* Lee Revell <rlrevell@joe-job.com> wrote:
> > did you try mlock-test.cc too? Just to make sure that mlock-test.cc is > > equivalent to mlockall-test.cc. > > That attachment was also missing.
attached now.
Ingo // here is the code i used to test the mlockall caused xruns #include <sys/mman.h> #include <iostream> #include <sstream> #include <unistd.h>
int main (int argc, char *argv[]) { if (argc < 2) { std::cout << "how many kbytes you want allocated and mlockall'ed?" << std::endl; }
std::stringstream stream(argv[1]); int kbytes; stream >> kbytes; char *mem = new char[kbytes*1024]; std::cout << "filling with 0's" << std::endl; for (int i = 0; i < kbytes*1024; ++i) { mem[i] = 0; }
std::cout << "ok, you want " << kbytes << "kb of memory mlocked. going for it.." << std::endl; int error = mlock(mem, kbytes*1024); if (error != 0) { std::cout << "mlock error" << std::endl; } else { std::cout << "mlock successfull" << std::endl;} }
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