bool profileFunc(const Func* func) {
if (!shouldPGOFunc(func)) return false;
// If retranslateAll is enabled and we already passed the point that it should
// be scheduled to execute (via the treadmill), then we can't emit more
// Profile translations. This is to ensure that, when retranslateAll() runs,
// no more Profile translations are being added to ProfData.
if (RuntimeOption::EvalJitRetranslateAllRequest != 0 &&
hasEnoughProfDataToRetranslateAll()) {
return false;
}
if (profData()->optimized(func->getFuncId())) return false;
// If we already started profiling `func', then we return true and skip the
// other checks below.
if (profData()->profiling(func->getFuncId())) return true;
// Don't start profiling new functions if the size of either main or
// prof is already above Eval.JitAMaxUsage and we already filled hot.
auto tcUsage = std::max(code().main().used(), code().prof().used());
if (tcUsage >= CodeCache::AMaxUsage && !code().hotEnabled()) {
return false;
}
// We have two knobs to control the number of functions we're allowed to
// profile: Eval.JitProfileRequests and Eval.JitProfileBCSize. We profile new
// functions until either of these limits is exceeded. In practice, we expect
// to hit the bytecode size limit first, but we keep the request limit around
// as a safety net.
if (RuntimeOption::EvalJitProfileBCSize > 0 &&
profData()->profilingBCSize() >= RuntimeOption::EvalJitProfileBCSize) {
return false;
}
return requestCount() <= RuntimeOption::EvalJitProfileRequests;
}
bool profileSrcKey(SrcKey sk) {
if (!shouldPGOFunc(*sk.func())) return false;
if (profData()->optimized(sk.funcID())) return false;
if (profData()->profiling(sk.funcID())) return true;
// Don't start profiling new functions if the size of either main or
// prof is already above Eval.JitAMaxUsage and we already filled hot.
auto tcUsage = std::max(code().main().used(), code().prof().used());
if (tcUsage >= CodeCache::AMaxUsage && !code().hotEnabled()) {
return false;
}
// We have two knobs to control the number of functions we're allowed to
// profile: Eval.JitProfileRequests and Eval.JitProfileBCSize. We profile new
// functions until either of these limits is exceeded. In practice we expect
// to hit the bytecode size limit first but we keep the request limit around
// as a safety net.
if (RuntimeOption::EvalJitProfileBCSize > 0 &&
profData()->profilingBCSize() >= RuntimeOption::EvalJitProfileBCSize) {
return false;
}
return requestCount() <= RuntimeOption::EvalJitProfileRequests;
}
