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comparison src/share/vm/opto/escape.cpp @ 20688:f913964f3fde

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8066199: C2 escape analysis prevents VM from exiting quickly Summary: Check for safepoint and block during EA Connection graph construction. Reviewed-by: roland, vlivanov, shade
author kvn
date Tue, 02 Dec 2014 12:24:31 -0800
parents 9e69e8d1c900
children 7848fc12602b
comparison
equal deleted inserted replaced
20687:a8ebd6f1b030 20688:f913964f3fde
1104 #define SAMPLE_SIZE 4 1104 #define SAMPLE_SIZE 4
1105 if ((next % SAMPLE_SIZE) == 0) { 1105 if ((next % SAMPLE_SIZE) == 0) {
1106 // Each 4 iterations calculate how much time it will take 1106 // Each 4 iterations calculate how much time it will take
1107 // to complete graph construction. 1107 // to complete graph construction.
1108 time.stop(); 1108 time.stop();
1109 // Poll for requests from shutdown mechanism to quiesce compiler
1110 // because Connection graph construction may take long time.
1111 CompileBroker::maybe_block();
1109 double stop_time = time.seconds(); 1112 double stop_time = time.seconds();
1110 double time_per_iter = (stop_time - start_time) / (double)SAMPLE_SIZE; 1113 double time_per_iter = (stop_time - start_time) / (double)SAMPLE_SIZE;
1111 double time_until_end = time_per_iter * (double)(java_objects_length - next); 1114 double time_until_end = time_per_iter * (double)(java_objects_length - next);
1112 if ((start_time + time_until_end) >= EscapeAnalysisTimeout) { 1115 if ((start_time + time_until_end) >= EscapeAnalysisTimeout) {
1113 timeout = true; 1116 timeout = true;