Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiProfilingInfo.java @ 5346:4c3d953f8131
added mechanism (enabled by -G:PICache and -G:PiFilter) for saving/loading method profiling info to/from disk
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 03 May 2012 13:39:45 +0200 |
parents | dad1ac9dba7d |
children | 56860d3f9f39 |
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5345:00803ae428d2 | 5346:4c3d953f8131 |
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28 * Every accessor method returns the information that is available at the time of invocation. | 28 * Every accessor method returns the information that is available at the time of invocation. |
29 * If a method is invoked multiple times, it may return significantly different results for every invocation | 29 * If a method is invoked multiple times, it may return significantly different results for every invocation |
30 * as the profiling information may be changed by other Java threads at any time. | 30 * as the profiling information may be changed by other Java threads at any time. |
31 */ | 31 */ |
32 public interface RiProfilingInfo { | 32 public interface RiProfilingInfo { |
33 | |
34 /** | |
35 * Gets the length of the code associated with this profile. | |
36 */ | |
37 int codeSize(); | |
38 | |
33 /** | 39 /** |
34 * Returns an estimate of how often the branch at the given byte code was taken. | 40 * Returns an estimate of how often the branch at the given byte code was taken. |
35 * @return The estimated probability, with 0.0 meaning never and 1.0 meaning always, or -1 if this information is not available. | 41 * @return The estimated probability, with 0.0 meaning never and 1.0 meaning always, or -1 if this information is not available. |
36 */ | 42 */ |
37 double getBranchTakenProbability(int bci); | 43 double getBranchTakenProbability(int bci); |
50 */ | 56 */ |
51 RiTypeProfile getTypeProfile(int bci); | 57 RiTypeProfile getTypeProfile(int bci); |
52 | 58 |
53 /** | 59 /** |
54 * Returns information if the given BCI did ever throw an exception. | 60 * Returns information if the given BCI did ever throw an exception. |
55 * @return @link{RiExceptionSeen.TRUE} if the instruction has thrown an exception at least once, | 61 * @return {@link RiExceptionSeen#TRUE} if the instruction has thrown an exception at least once, |
56 * @link{RiExceptionSeen.FALSE} if it never threw an exception, and @link{RiExceptionSeen.UNKNOWN} | 62 * {@link RiExceptionSeen#FALSE} if it never threw an exception, and {@link RiExceptionSeen#NOT_SUPPORTED} |
57 * if this information was not recorded. | 63 * if this information was not recorded. |
58 */ | 64 */ |
59 RiExceptionSeen getExceptionSeen(int bci); | 65 RiExceptionSeen getExceptionSeen(int bci); |
60 | 66 |
61 /** | 67 /** |