> Dear community, > may I please request reviews for this fix, improving the usefulness of method > invocation counters. > - aggregation counters are retyped as uint64_t, shifting the overflow > probability way out (185 days in case of a 1 GHz counter update frequency). > - counters for individual methods are interpreted as (unsigned int), in > contrast to their declaration as int. This gives us a factor of two before > the counters overflow. > - as a special case, "compiled_invocation_counter" is retyped as long, > because it has a higher update frequency than other counters. > - before/after sample output is attached to the bug description. > > Thank you! > Lutz
Lutz Schmidt has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits: - 8261447: requested changes by TobiHartmann - JDK-8261447: MethodInvocationCounters frequently run into overflow - expand remaining counters to 64-bit, remove 64 duffix - 8261447: requested changes by TobiHartmann - JDK-8261447: MethodInvocationCounters frequently run into overflow ------------- Changes: https://git.openjdk.java.net/jdk/pull/2511/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2511&range=03 Stats: 5969 lines in 92 files changed: 5856 ins; 4 del; 109 mod Patch: https://git.openjdk.java.net/jdk/pull/2511.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2511/head:pull/2511 PR: https://git.openjdk.java.net/jdk/pull/2511
