test(perf): expand VT baseline coverage

commit: a667323e9602b9da58d4081c30da44bfae37898c
author: brice · 2mo ago · 2026-08-20 08:28 UTC
parent: 52147d7
signature: GPG VerifiedCD88F9E564E0102646FB6077A1A07C7C7C3E349D · arch-gpg Verified for the committer email

1 file · +59 -0

M benchmark_test.go +59 -0


@@ -10,6 +10,7 @@ import (
10	10		var (
11	11		benchmarkHistoryViewSink HistoryView
12	12		benchmarkHistorySnapshotSink HistorySnapshotView
	13	+	benchmarkDamageCaptureSink DamageCapture
13	14		benchmarkHistoryBlobSink []byte
14	15		benchmarkHistoryBlobsSink [][]byte
15	16		)

@@ -200,6 +201,14 @@ func benchmarkScreenResizeReflow(b *testing.B, historyRows int) {
200	201		for range historyRows {
201	202		requireHistoryAppend(b, s.history, make([]renderer.Cell, 120))
202	203		}
	204	+	// History normally receives rows evicted from this screen, whose IDs are
	205	+	// allocated after every existing live or historical row. This fixture
	206	+	// prepopulates history directly, so advance and refresh the live IDs to
	207	+	// preserve that invariant before exercising resize eviction.
	208	+	s.nextRowID = s.history.nextRowID - 1
	209	+	for y := range s.buffer.rowIDs {
	210	+	s.buffer.rowIDs[y] = s.nextRowIDValue()
	211	+	}
203	212		}
204	213		s.Write(bytes.Repeat([]byte("x"), 120*39))
205	214		s.ClearDamage()

@@ -217,6 +226,56 @@ func benchmarkScreenResizeReflow(b *testing.B, historyRows int) {
217	226		}
218	227		}
219	228
	229	+	func BenchmarkScreenPrintableASCII(b *testing.B) {
	230	+	s := NewScreen(120, 40)
	231	+	chunk := append(bytes.Repeat([]byte("x"), 119), '\r')
	232	+	b.SetBytes(int64(len(chunk)))
	233	+	b.ReportAllocs()
	234	+	for b.Loop() {
	235	+	s.Write(chunk)
	236	+	s.ClearDamage()
	237	+	}
	238	+	}
	239	+
	240	+	func BenchmarkScreenMixedUTF8(b *testing.B) {
	241	+	s := NewScreen(120, 40)
	242	+	chunk := append(bytes.Repeat([]byte("Aé界"), 20), '\r')
	243	+	b.SetBytes(int64(len(chunk)))
	244	+	b.ReportAllocs()
	245	+	for b.Loop() {
	246	+	s.Write(chunk)
	247	+	s.ClearDamage()
	248	+	}
	249	+	}
	250	+
	251	+	func BenchmarkScreenCSIHeavy(b *testing.B) {
	252	+	s := NewScreen(120, 40)
	253	+	chunk := []byte("\x1b[1;1H\x1b[2K\x1b[31;48;2;1;2;3mstatus\x1b[0m\x1b[10C\x1b[?25l\x1b[?25h\r")
	254	+	b.SetBytes(int64(len(chunk)))
	255	+	b.ReportAllocs()
	256	+	for b.Loop() {
	257	+	s.Write(chunk)
	258	+	s.ClearDamage()
	259	+	}
	260	+	}
	261	+
	262	+	func BenchmarkScreenCaptureDamage(b *testing.B) {
	263	+	s := NewScreen(120, 40)
	264	+	chunk := []byte("x")
	265	+	s.ClearDamage()
	266	+	b.ReportAllocs()
	267	+	for b.Loop() {
	268	+	s.Write(chunk)
	269	+	benchmarkDamageCaptureSink = s.CaptureDamage()
	270	+	if len(benchmarkDamageCaptureSink.Damage) == 0 {
	271	+	b.Fatal("expected captured damage")
	272	+	}
	273	+	if !s.AcknowledgeDamage(benchmarkDamageCaptureSink.Generation) {
	274	+	b.Fatal("expected current damage acknowledgement")
	275	+	}
	276	+	}
	277	+	}
	278	+
220	279		func BenchmarkScreenShellRedrawBurst(b *testing.B) {
221	280		chunk := []byte("\r\x1b[K❯ abc\x1b[90m autosuggestion\x1b[39m\r\x1b[5C")
222	281		b.ReportAllocs()


@@ -10,6 +10,7 @@ import (
10	var (	10		var (
11	benchmarkHistoryViewSink HistoryView	11		benchmarkHistoryViewSink HistoryView
12	benchmarkHistorySnapshotSink HistorySnapshotView	12		benchmarkHistorySnapshotSink HistorySnapshotView
		13	+	benchmarkDamageCaptureSink DamageCapture
13	benchmarkHistoryBlobSink []byte	14		benchmarkHistoryBlobSink []byte
14	benchmarkHistoryBlobsSink [][]byte	15		benchmarkHistoryBlobsSink [][]byte
15	)	16		)

@@ -200,6 +201,14 @@ func benchmarkScreenResizeReflow(b *testing.B, historyRows int) {
200	for range historyRows {	201		for range historyRows {
201	requireHistoryAppend(b, s.history, make([]renderer.Cell, 120))	202		requireHistoryAppend(b, s.history, make([]renderer.Cell, 120))
202	}	203		}
		204	+	// History normally receives rows evicted from this screen, whose IDs are
		205	+	// allocated after every existing live or historical row. This fixture
		206	+	// prepopulates history directly, so advance and refresh the live IDs to
		207	+	// preserve that invariant before exercising resize eviction.
		208	+	s.nextRowID = s.history.nextRowID - 1
		209	+	for y := range s.buffer.rowIDs {
		210	+	s.buffer.rowIDs[y] = s.nextRowIDValue()
		211	+	}
203	}	212		}
204	s.Write(bytes.Repeat([]byte("x"), 120*39))	213		s.Write(bytes.Repeat([]byte("x"), 120*39))
205	s.ClearDamage()	214		s.ClearDamage()

@@ -217,6 +226,56 @@ func benchmarkScreenResizeReflow(b *testing.B, historyRows int) {
217	}	226		}
218	}	227		}
219		228
		229	+	func BenchmarkScreenPrintableASCII(b *testing.B) {
		230	+	s := NewScreen(120, 40)
		231	+	chunk := append(bytes.Repeat([]byte("x"), 119), '\r')
		232	+	b.SetBytes(int64(len(chunk)))
		233	+	b.ReportAllocs()
		234	+	for b.Loop() {
		235	+	s.Write(chunk)
		236	+	s.ClearDamage()
		237	+	}
		238	+	}
		239	+
		240	+	func BenchmarkScreenMixedUTF8(b *testing.B) {
		241	+	s := NewScreen(120, 40)
		242	+	chunk := append(bytes.Repeat([]byte("Aé界"), 20), '\r')
		243	+	b.SetBytes(int64(len(chunk)))
		244	+	b.ReportAllocs()
		245	+	for b.Loop() {
		246	+	s.Write(chunk)
		247	+	s.ClearDamage()
		248	+	}
		249	+	}
		250	+
		251	+	func BenchmarkScreenCSIHeavy(b *testing.B) {
		252	+	s := NewScreen(120, 40)
		253	+	chunk := []byte("\x1b[1;1H\x1b[2K\x1b[31;48;2;1;2;3mstatus\x1b[0m\x1b[10C\x1b[?25l\x1b[?25h\r")
		254	+	b.SetBytes(int64(len(chunk)))
		255	+	b.ReportAllocs()
		256	+	for b.Loop() {
		257	+	s.Write(chunk)
		258	+	s.ClearDamage()
		259	+	}
		260	+	}
		261	+
		262	+	func BenchmarkScreenCaptureDamage(b *testing.B) {
		263	+	s := NewScreen(120, 40)
		264	+	chunk := []byte("x")
		265	+	s.ClearDamage()
		266	+	b.ReportAllocs()
		267	+	for b.Loop() {
		268	+	s.Write(chunk)
		269	+	benchmarkDamageCaptureSink = s.CaptureDamage()
		270	+	if len(benchmarkDamageCaptureSink.Damage) == 0 {
		271	+	b.Fatal("expected captured damage")
		272	+	}
		273	+	if !s.AcknowledgeDamage(benchmarkDamageCaptureSink.Generation) {
		274	+	b.Fatal("expected current damage acknowledgement")
		275	+	}
		276	+	}
		277	+	}
		278	+
220	func BenchmarkScreenShellRedrawBurst(b *testing.B) {	279		func BenchmarkScreenShellRedrawBurst(b *testing.B) {
221	chunk := []byte("\r\x1b[K❯ abc\x1b[90m autosuggestion\x1b[39m\r\x1b[5C")	280		chunk := []byte("\r\x1b[K❯ abc\x1b[90m autosuggestion\x1b[39m\r\x1b[5C")
222	b.ReportAllocs()	281		b.ReportAllocs()