Mercurial > hg > graal-compiler
comparison src/share/vm/utilities/globalDefinitions.hpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
| author | johnc |
|---|---|
| date | Mon, 19 Dec 2011 10:02:05 -0800 |
| parents | 436b4a3231bf |
| children | 94ec88ca68e2 |
comparison
equal
deleted
inserted
replaced
| 4711:adedfbbf0360 | 4712:e7dead7e90af |
|---|---|
| 172 // example from seconds to milliseconds and microseconds | 172 // example from seconds to milliseconds and microseconds |
| 173 | 173 |
| 174 const int MILLIUNITS = 1000; // milli units per base unit | 174 const int MILLIUNITS = 1000; // milli units per base unit |
| 175 const int MICROUNITS = 1000000; // micro units per base unit | 175 const int MICROUNITS = 1000000; // micro units per base unit |
| 176 const int NANOUNITS = 1000000000; // nano units per base unit | 176 const int NANOUNITS = 1000000000; // nano units per base unit |
| 177 | |
| 178 const jlong NANOSECS_PER_SEC = CONST64(1000000000); | |
| 179 const jint NANOSECS_PER_MILLISEC = 1000000; | |
| 177 | 180 |
| 178 inline const char* proper_unit_for_byte_size(size_t s) { | 181 inline const char* proper_unit_for_byte_size(size_t s) { |
| 179 if (s >= 10*M) { | 182 if (s >= 10*M) { |
| 180 return "M"; | 183 return "M"; |
| 181 } else if (s >= 10*K) { | 184 } else if (s >= 10*K) { |