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perf(grpc): O(1) unconstrained bulk fast path, direct filtered-command build, cache eviction, capacity hints

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This commit is contained in:
Joseph Doherty
2026-08-15 12:24:17 -04:00
parent 88d38bb900
commit 7171892984
6 changed files with 261 additions and 33 deletions
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src/ZB.MOM.WW.MxGateway.Server/Sessions/SparseArrayExpander.cs
+10
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@@ -120,6 +120,10 @@ internal static class SparseArrayExpander
case MxDataType.Boolean:
{
BoolArray values = new();
// Size the backing store once: the fill below adds exactly `length` elements,
// so without this the RepeatedField doubles its array log2(length) times.
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(false);
@@ -137,6 +141,7 @@ internal static class SparseArrayExpander
case MxDataType.Integer when UsesInt64(elements):
{
Int64Array values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(0L);
@@ -154,6 +159,7 @@ internal static class SparseArrayExpander
case MxDataType.Integer:
{
Int32Array values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(0);
@@ -171,6 +177,7 @@ internal static class SparseArrayExpander
case MxDataType.Float:
{
FloatArray values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(0f);
@@ -188,6 +195,7 @@ internal static class SparseArrayExpander
case MxDataType.Double:
{
DoubleArray values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(0d);
@@ -205,6 +213,7 @@ internal static class SparseArrayExpander
case MxDataType.String:
{
StringArray values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(string.Empty);
@@ -222,6 +231,7 @@ internal static class SparseArrayExpander
case MxDataType.Time:
{
TimestampArray values = new();
values.Values.Capacity = length;
for (int i = 0; i < length; i++)
{
values.Values.Add(new Timestamp { Seconds = 0, Nanos = 0 });