On 10 January 2017 at 10:30, Maxim Uvarov <maxim.uva...@linaro.org> wrote:
> On 01/10/17 18:08, Mike Holmes wrote: > > > > > > On 10 January 2017 at 10:02, Maxim Uvarov <maxim.uva...@linaro.org > > <mailto:maxim.uva...@linaro.org>> wrote: > > > > after one more look at this I think we need to remove affinity > setting > > from hello word app. It's really not needed and not related to odp. > > > > > > As a hello world, is it not useful to describe general usage ? > > I don't disagree with you, just asking if it helps to keep it. > > > > I think Hello world has to be minimal app. ODP can work with not bind to > cpu threads. But it will be good if 'hello' app will not any linux > specifics and can run on all environments like bare metal. > Makes sence > > Maxim. > > > > > > > > > > Maxim. > > > > On 01/10/17 05:52, Balakrishna Garapati wrote: > > > This will resolve the test in ci when using cgroups. > > > odp_hello app fails to set cpu affinity to zero all ways > > > when cgroup doesn't include that cpu in the set. > > > > > > Fixes: https://bugs.linaro.org/show_bug.cgi?id=2806 > > <https://bugs.linaro.org/show_bug.cgi?id=2806> > > > > > > Signed-off-by: Balakrishna Garapati > > <balakrishna.garap...@linaro.org > > <mailto:balakrishna.garap...@linaro.org>> > > > --- > > > > > > since v2: Added link to bug > > > > > > example/hello/odp_hello.c | 19 ++++++++++++++++--- > > > 1 file changed, 16 insertions(+), 3 deletions(-) > > > > > > diff --git a/example/hello/odp_hello.c b/example/hello/odp_hello.c > > > index 6d114ee..59a31b2 100644 > > > --- a/example/hello/odp_hello.c > > > +++ b/example/hello/odp_hello.c > > > @@ -60,16 +60,29 @@ int main(int argc, char *argv[]) > > > options_t opt; > > > pid_t pid; > > > cpu_set_t cpu_set; > > > - int i; > > > + int i, ret, first_cpu = 0, cpu; > > > + > > > + pid = getpid(); > > > + ret = sched_getaffinity(pid, sizeof(cpu_set_t), &cpu_set); > > > + if (ret < 0) { > > > + printf("get CPU affinity failed.\n"); > > > + return -1; > > > + } > > > + > > > + for (cpu = 0; cpu < CPU_SETSIZE; cpu++) { > > > + if (CPU_ISSET(cpu, &cpu_set)) { > > > + first_cpu = cpu; > > > + break; > > > + } > > > + } > > > > > > memset(&opt, 0, sizeof(opt)); > > > - opt.cpu = 0; > > > + opt.cpu = first_cpu; > > > opt.num = 1; > > > > > > if (parse_args(argc, argv, &opt)) > > > return -1; > > > > > > - pid = getpid(); > > > CPU_ZERO(&cpu_set); > > > CPU_SET(opt.cpu, &cpu_set); > > > > > > -- > > > 1.9.1 > > > > > > > > > > > > > -- > > Mike Holmes > > Program Manager - Linaro Networking Group > > Linaro.org <http://www.linaro.org/>* **│ *Open source software for ARM > SoCs > > "Work should be fun and collaborative, the rest follows" > > > > __ > > > > > > -- Mike Holmes Program Manager - Linaro Networking Group Linaro.org <http://www.linaro.org/> *│ *Open source software for ARM SoCs "Work should be fun and collaborative, the rest follows"
