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Eval benchmark

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This commit is contained in:
David Renshaw 2014-06-20 13:38:32 -04:00
parent 1fb0adb351
commit fd1d82bd7c
4 changed files with 88 additions and 2 deletions
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16
benchmark/src/main/java/org/capnproto/benchmark/Common.java
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@ -26,4 +26,20 @@ public class Common {
}
}
public static int div(int a, int b){
if (b == 0) return 0x7fffffff;
if (a == 0x80000000 && b == -1) {
return 0x7fffffff;
}
return a / b;
}
public static int modulus(int a, int b) {
if (b == 0) return 0x7fffffff;
if (a == 0x80000000 && b == -1) {
return 0x7fffffff;
}
return a % b;
}
}

70
benchmark/src/main/java/org/capnproto/benchmark/Eval.java Normal file
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@ -0,0 +1,70 @@
package org.capnproto.benchmark;
import org.capnproto.MessageBuilder;
import org.capnproto.StructList;
import org.capnproto.Text;
import org.capnproto.benchmark.EvalSchema.*;
public class Eval {
public static int makeExpression(Common.FastRand rng, Expression.Builder exp, int depth) {
exp.setOp(Operation.values()[rng.nextLessThan(Operation.values().length)]);
int left = 0;
if (rng.nextLessThan(8) < depth) {
int tmp = rng.nextLessThan(128) + 1;
exp.getLeft().setValue(tmp);
left = tmp;
} else {
left = makeExpression(rng, exp.getLeft().initExpression(), depth + 1);
}
int right = 0;
if (rng.nextLessThan(8) < depth) {
int tmp = rng.nextLessThan(128) + 1;
exp.getRight().setValue(tmp);
right = tmp;
} else {
right = makeExpression(rng, exp.getRight().initExpression(), depth + 1);
}
switch (exp.getOp()) {
case ADD: return left + right;
case SUBTRACT: return left - right;
case MULTIPLY: return left * right;
case DIVIDE: return Common.div(left, right);
case MODULUS: return Common.modulus(left, right);
default:
throw new Error("impossible");
}
}
public static int evaluateExpression(Expression.Reader exp) {
int left = 0, right = 0;
switch (exp.getLeft().which()) {
case VALUE:
left = exp.getLeft().getValue();
break;
case EXPRESSION:
left = evaluateExpression(exp.getLeft().getExpression());
}
switch (exp.getRight().which()) {
case VALUE:
right = exp.getRight().getValue();
break;
case EXPRESSION:
right = evaluateExpression(exp.getRight().getExpression());
}
switch (exp.getOp()) {
case ADD: return left + right;
case SUBTRACT: return left - right;
case MULTIPLY: return left * right;
case DIVIDE: return Common.div(left, right);
case MODULUS: return Common.modulus(left, right);
default:
throw new Error("impossible");
}
}
}

2
benchmark/src/main/schema/catrank.capnp
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@ -28,7 +28,7 @@ $Cxx.namespace("capnp::benchmark::capnp");
using Java = import "/java_support/java.capnp";
$Java.package("org.capnproto.benchmark");
$Java.outerClassname("Catrank");
$Java.outerClassname("CatrankSchema");
struct SearchResultList {
results@0: List(SearchResult);

2
benchmark/src/main/schema/eval.capnp
View file

@ -28,7 +28,7 @@ $Cxx.namespace("capnp::benchmark::capnp");
using Java = import "/java_support/java.capnp";
$Java.package("org.capnproto.benchmark");
$Java.outerClassname("Eval");
$Java.outerClassname("EvalSchema");
enum Operation {
add @0;