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perf(vm): hoist allowDynamicEnergy out of the opcode loop #6858

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Merged
CodeNinjaEvan merged 1 commit into from
Jun 27, 2026
+5 −3
Merged

perf(vm): hoist allowDynamicEnergy out of the opcode loop #6858

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8 changes: 5 additions & 3 deletions actuator/src/main/java/org/tron/core/vm/VM.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,10 @@ public static void play(Program program, JumpTable jumpTable) {
try {
long factor = DYNAMIC_ENERGY_FACTOR_DECIMAL;
long energyUsage = 0L;
// hoist once per execution: avoids a per-opcode VMConfig.current() thread-local lookup
final boolean allowDynamicEnergy = VMConfig.allowDynamicEnergy();

if (VMConfig.allowDynamicEnergy()) {
if (allowDynamicEnergy) {
factor = program.updateContextContractFactor();
}

Expand All @@ -47,7 +49,7 @@ public static void play(Program program, JumpTable jumpTable) {
String opName = Op.getNameOf(op.getOpcode());
/* spend energy before execution */
long energy = op.getEnergyCost(program);
if (VMConfig.allowDynamicEnergy()) {
if (allowDynamicEnergy) {
long actualEnergy = energy;
// CALL Ops have special calculation on energy.
if (CALL_OPS.contains(op.getOpcode())) {
Expand Down Expand Up @@ -101,7 +103,7 @@ public static void play(Program program, JumpTable jumpTable) {
}
}

if (VMConfig.allowDynamicEnergy()) {
if (allowDynamicEnergy) {
program.addContextContractUsage(energyUsage);
}

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