Benchmark: single-upstream-vs-switch-apply-2

single-upstream-vs-switch-apply-2 (version: 1)

Benchmark primarily to compare optimizing for avoiding array creation for single element lists.

Comparing performance of: apply exec 1 vs deopt create 2 vs deopt create 1 vs deopt exec 4 vs deopt exec 3 vs deopt exec 2 vs deopt exec 1 vs single create 4 vs single create 3 vs single create 2 vs single create 1 vs apply create 4 vs apply create 3 vs apply create 2 vs apply create 1 vs single exec 4 vs single exec 3 vs single exec 2 vs single exec 1 vs apply exec 4 vs apply exec 3 vs apply exec 2 vs deopt create 3 vs deopt create 4

Created: 5 years ago by: Registered User

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Script Preparation code:

const data = ["hello", " ", "world", "!"];
var dep1 = { id: 0 };
var dep2 = { id: 1 };
var dep3 = { id: 2 };
var dep4 = { id: 3 };
var deps1 = [dep1];
var deps2 = [dep1, dep2];
var deps3 = [dep1, dep2, dep3];
var deps4 = [dep1, dep2, dep3, dep4];

function sample1(_0) {
  return _0;
}

function sample2(_0, _1) {
  return _0 + _1;
}

function sample3(_0, _1, _2) {
  return _0 + _1 + _2;
}

function sample4(_0, _1, _2, _3) {
  return _0 + _1 + _2 + _3;
}

var sampleApply1 = createApplyComputation(sample1, deps1);
var sampleApply2 = createApplyComputation(sample2, deps2);
var sampleApply3 = createApplyComputation(sample3, deps3);
var sampleApply4 = createApplyComputation(sample4, deps4);
var sampleSingle1 = createSingleComputation(sample1, dep1, true);
var sampleSingle2 = createSingleComputation(sample2, deps2);
var sampleSingle3 = createSingleComputation(sample3, deps3);
var sampleSingle4 = createSingleComputation(sample4, deps4);
var sampleDeopt1 = createDeoptComputation(sample1, deps1);
var sampleDeopt2 = createDeoptComputation(sample2, deps2);
var sampleDeopt3 = createDeoptComputation(sample3, deps3);
var sampleDeopt4 = createDeoptComputation(sample4, deps4);

function createDeoptComputation(fn, deps) {
  return () => fn(...deps.map(read));
}

function createApplyComputation(fn, deps) {
  switch (deps.length) {
    case 1:
      return () => fn(read(deps[0]));
    case 2:
      return () => fn(read(deps[0]), read(deps[1]));
    case 3:
      return () => fn(read(deps[0]), read(deps[1]), read(deps[2]));
    default:
      return () => fn(...deps.map(read));
  }
}

function createSingleComputation(fn, deps, isSingle) {
  if (isSingle) {
    return () => fn(read(deps));
  } else {
    return () => fn(...deps.map(read));
  }
}

function read(s) {
  return data[s.id];
}

Tests:

apply exec 1
sampleApply1();
deopt create 2
createDeoptComputation(sample2, [dep1, dep2])();
deopt create 1
createDeoptComputation(sample1, [dep1])();
deopt exec 4
sampleDeopt4();
deopt exec 3
sampleDeopt3();
deopt exec 2
sampleDeopt2();
deopt exec 1
sampleDeopt1();
single create 4
createSingleComputation(sample4, [dep1, dep2, dep3, dep4])();
single create 3
createSingleComputation(sample3, [dep1, dep2, dep3])();
single create 2
createSingleComputation(sample2, [dep1, dep2])();
single create 1
createSingleComputation(sample1, dep1, true)();
apply create 4
createApplyComputation(sample4, [dep1, dep2, dep3, dep4])();
apply create 3
createApplyComputation(sample3, [dep1, dep2, dep3])();
apply create 2
createApplyComputation(sample2, [dep1, dep2])();
apply create 1
createApplyComputation(sample1, [dep1])();
single exec 4
sampleSingle4();
single exec 3
sampleSingle3();
single exec 2
sampleSingle2();
single exec 1
sampleSingle1();
apply exec 4
sampleApply4();
apply exec 3
sampleApply3();
apply exec 2
sampleApply2();
deopt create 3
createDeoptComputation(sample3, [dep1, dep2, dep3])();
deopt create 4
createDeoptComputation(sample4, [dep1, dep2, dep3, dep4])();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
apply exec 1
deopt create 2
deopt create 1
deopt exec 4
deopt exec 3
deopt exec 2
deopt exec 1
single create 4
single create 3
single create 2
single create 1
apply create 4
apply create 3
apply create 2
apply create 1
single exec 4
single exec 3
single exec 2
single exec 1
apply exec 4
apply exec 3
apply exec 2
deopt create 3
deopt create 4

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

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