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6987115: Non-tiered compilation policy creates unnecessary C1 threads

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Fixed NonTieredCompPolicy::compiler_count() to return correct thread count.

Reviewed-by: twisti, kvn
This commit is contained in:
Igor Veresov 2010-09-27 15:04:40 -07:00
parent 718b005834
commit f5bac56265
1 changed files with 21 additions and 6 deletions
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27
hotspot/src/share/vm/runtime/compilationPolicy.cpp
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@ -129,16 +129,31 @@ void NonTieredCompPolicy::initialize() {
} }
} }
// Note: this policy is used ONLY if TieredCompilation is off.
// compiler_count() behaves the following way:
// - with TIERED build (with both COMPILER1 and COMPILER2 defined) it should return
// zero for the c1 compilation levels, hence the particular ordering of the
// statements.
// - the same should happen when COMPILER2 is defined and COMPILER1 is not
// (server build without TIERED defined).
// - if only COMPILER1 is defined (client build), zero should be returned for
// the c2 level.
// - if neither is defined - always return zero.
int NonTieredCompPolicy::compiler_count(CompLevel comp_level) { int NonTieredCompPolicy::compiler_count(CompLevel comp_level) {
#ifdef COMPILER1 assert(!TieredCompilation, "This policy should not be used with TieredCompilation");
if (is_c1_compile(comp_level)) {
return _compiler_count;
}
#endif
#ifdef COMPILER2 #ifdef COMPILER2
if (is_c2_compile(comp_level)) { if (is_c2_compile(comp_level)) {
return _compiler_count; return _compiler_count;
} else {
return 0;
}
#endif
#ifdef COMPILER1
if (is_c1_compile(comp_level)) {
return _compiler_count;
} else {
return 0;
} }
#endif #endif