On Thu, 15 May 2014 19:23:33 +0200, Jiri Olsa wrote:
> Adding a way to setup test dso limit by global variable
> test_dso_data__fd_limit. It'll be used in the dso data
> cache tests.
Why is this needed? Why not justing setting RLIMIT_NOFILE in the test
cases?
Thanks,
Namhyung
>
> Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
> Cc: David Ahern <dsah...@gmail.com>
> Cc: Frederic Weisbecker <fweis...@gmail.com>
> Cc: Ingo Molnar <mi...@kernel.org>
> Cc: Jean Pihet <jean.pi...@linaro.org>
> Cc: Namhyung Kim <namhy...@kernel.org>
> Cc: Paul Mackerras <pau...@samba.org>
> Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
> Signed-off-by: Jiri Olsa <jo...@kernel.org>
> ---
> tools/perf/util/dso.c | 5 +++++
> tools/perf/util/dso.h | 3 +++
> 2 files changed, 8 insertions(+)
>
> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> index 80b54e7..9310369 100644
> --- a/tools/perf/util/dso.c
> +++ b/tools/perf/util/dso.c
> @@ -7,6 +7,8 @@
> #include "util.h"
> #include "debug.h"
>
> +rlim_t test_dso_data__fd_limit;
> +
> char dso__symtab_origin(const struct dso *dso)
> {
> static const char origin[] = {
> @@ -262,6 +264,9 @@ static bool may_cache_fd(void)
> if (!limit)
> limit = get_fd_limit();
>
> + if (unlikely(test_dso_data__fd_limit))
> + limit = test_dso_data__fd_limit;
> +
> if (limit == RLIM_INFINITY)
> return true;
>
> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
> index d713184..3807014 100644
> --- a/tools/perf/util/dso.h
> +++ b/tools/perf/util/dso.h
> @@ -1,6 +1,7 @@
> #ifndef __PERF_DSO
> #define __PERF_DSO
>
> +#include <sys/resource.h>
> #include <linux/types.h>
> #include <linux/rbtree.h>
> #include <stdbool.h>
> @@ -8,6 +9,8 @@
> #include "map.h"
> #include "build-id.h"
>
> +extern rlim_t test_dso_data__fd_limit;
> +
> enum dso_binary_type {
> DSO_BINARY_TYPE__KALLSYMS = 0,
> DSO_BINARY_TYPE__GUEST_KALLSYMS,
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