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update(userspace/profiler): introduce profiler namespace

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Co-authored-by: Lorenzo Fontana <lo@linux.com>
Signed-off-by: Leonardo Di Donato <leodidonato@gmail.com>
This commit is contained in:
Leonardo Di Donato
2020-05-12 17:17:27 +00:00
committed by Lorenzo Fontana
parent 35cba8a231
commit cc8bc663df
2 changed files with 13 additions and 9 deletions
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2
userspace/profiler/profile.fbs
View File

@@ -1,4 +1,4 @@
namespace profiler_structures;
namespace profiler;
file_identifier "FPRO";
file_extension "fpro";

20
userspace/profiler/profiler.h
View File

@@ -22,9 +22,12 @@ limitations under the License.
#include <memory>
#include <hedley.h>
namespace profiler
{
#define CHUNK_ELEMENTS 7
#define CHUNK_SIZE ((1 << 20) * CHUNK_ELEMENTS) // 20 MiB = 5242880 * sizeof(uint32_t)
#define LABEL_MASK 0x80000000 // Largest positive int32 + 1
#define LABEL_MASK 0x80000000 // Largest positive int32 + 1
struct cursor
{
@@ -78,13 +81,13 @@ HEDLEY_NEVER_INLINE uint32_t create_label(char const* file, int line, char const
return l.label;
}
struct profiler
struct profile
{
uint32_t* data;
int n;
int epochs; // (max) depth at the moment of execution
explicit profiler(uint32_t label)
explicit profile(uint32_t label)
{
data = c.current;
auto next = data + CHUNK_ELEMENTS;
@@ -107,7 +110,7 @@ struct profiler
data[2] = lo;
}
~profiler()
~profile()
{
unsigned int lo, hi;
__asm__ __volatile__("rdtsc"
@@ -115,7 +118,6 @@ struct profiler
data[3] = hi;
data[4] = lo;
if(HEDLEY_LIKELY(epochs > 1))
{
for(int i = 0; i < epochs - 1; i++)
@@ -163,6 +165,8 @@ struct profiler
#define PROFILE_VARIABLE_IMPL(arg1, arg2) arg1##arg2
#define PROFILE_VARIABLE(arg1, arg2) PROFILE_VARIABLE_IMPL(arg1, arg2)
#define PROFILEME() \
static uint32_t PROFILE_VARIABLE(_label, __LINE__) = create_label(__FILE__, __LINE__, __FUNCTION__); \
profiler PROFILE_VARIABLE(_profile_, __LINE__)(PROFILE_VARIABLE(_label, __LINE__));
#define PROFILEME() \
static uint32_t PROFILE_VARIABLE(_label, __LINE__) = profiler::create_label(__FILE__, __LINE__, __FUNCTION__); \
profiler::profile PROFILE_VARIABLE(_profile_, __LINE__)(PROFILE_VARIABLE(_label, __LINE__));
}; // namespace profiler