Mercurial > hg > graal-compiler
comparison src/share/vm/gc_implementation/g1/vm_operations_g1.cpp @ 3914:20213c8a3c40
7050392: G1: Introduce flag to generate a log of the G1 ergonomic decisions
Summary: It introduces ergonomic decision logging in G1 for the following heuristics: heap sizing, collection set construction, concurrent cycle initiation, and partially-young GC start/end. The code has a bit of refactoring in a few places to make the decision logging possible. It also replaces alternative ad-hoc logging that we have under different parameters and switches (G1_DEBUG, G1PolicyVerbose).
Reviewed-by: johnc, ysr
| author | tonyp |
|---|---|
| date | Wed, 07 Sep 2011 12:21:23 -0400 |
| parents | 5130fa1b24f1 |
| children | db89aa49298f |
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| 3913:27702f012017 | 3914:20213c8a3c40 |
|---|---|
| 96 // setting it earlier. | 96 // setting it earlier. |
| 97 _full_collections_completed_before = g1h->full_collections_completed(); | 97 _full_collections_completed_before = g1h->full_collections_completed(); |
| 98 | 98 |
| 99 // At this point we are supposed to start a concurrent cycle. We | 99 // At this point we are supposed to start a concurrent cycle. We |
| 100 // will do so if one is not already in progress. | 100 // will do so if one is not already in progress. |
| 101 bool res = g1h->g1_policy()->force_initial_mark_if_outside_cycle(); | 101 bool res = g1h->g1_policy()->force_initial_mark_if_outside_cycle(_gc_cause); |
| 102 | 102 |
| 103 // The above routine returns true if we were able to force the | 103 // The above routine returns true if we were able to force the |
| 104 // next GC pause to be an initial mark; it returns false if a | 104 // next GC pause to be an initial mark; it returns false if a |
| 105 // marking cycle is already in progress. | 105 // marking cycle is already in progress. |
| 106 // | 106 // |