benchmark: compare foreach enmerations

ninmonkey · Dec 22, 2023 · eb5f584 · eb5f584
1 parent 2782b9d
commit eb5f584
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diff --git a/Pwsh/Benchmark/Foreach.Enumeration.benchmark.ps1 b/Pwsh/Benchmark/Foreach.Enumeration.benchmark.ps1
@@ -0,0 +1,90 @@
+@'
+Outputs:
+
+# sort: Time
+
+
+Technique      Time             RelativeSpeed GroupName Throughput
+---------      ----             ------------- --------- ----------
+foreach        00:00:00.0891213          1.00                22.44
+process block  00:00:00.6515211          7.31                 3.07
+ForEach-Object 00:00:04.4421355         49.84                 0.45
+.ForEach()     00:00:06.0717863         68.13                 0.33
+
+'@
+h1 (Join-String -f 'File: {0}' -in $PSCommandPath)
+
+function Measure.Group {
+    [CmdletBinding()]
+    param(
+        # [ValidateNotNullOrWhiteSpace()]
+        # [Alias('Label')]
+        # [string]$GroupName,
+
+        # [ValidateNotNullOrWhiteSpace()]
+        # [string]$CommandName,
+
+        [int]$RepeatCount = 2,
+
+        [Management.Automation.ActionPreference]$CommandErrorActionPref = 'Continue',
+        [switch]$AsJob = $true
+    )
+
+
+    Measure-Benchmark -AsJob:$AsJob -ea 'ignore' -Group ($GroupName ?? 'none') -RepeatCount $RepeatCount -Technique @{
+        'foreach' = {
+            $range = [Linq.Enumerable]::Range(0, 1mb)
+            & {
+                foreach ($i in $args[0]) { $i }
+            } $range
+        }
+        '.ForEach()' = {
+            $range = [Linq.Enumerable]::Range(0, 1mb)
+            & {
+                $args[0].ForEach({ $_ })
+            } $range
+        }
+        'ForEach-Object' = {
+            $range = [Linq.Enumerable]::Range(0, 1mb)
+            & {
+                $args[0] | ForEach-Object { $_ }
+            } $range
+        }
+        'process block' = {
+            $range = [Linq.Enumerable]::Range(0, 1mb)
+            & {
+                $args[0] | & { process { $_ } }
+            } $range
+        }
+    } | sort-Object Time -desc
+}
+
+'starting jobs...' | write-host -back 'blue'
+$results =
+    @( Measure.Group -AsJob )
+        | Receive-Job -Wait -AutoRemoveJob
+
+'$results = {0}' -f $Results.count
+
+h1 'grouped'
+$results | ft -AutoSize  GroupName, Technique, Throughput, RelativeSpeed, Time
+
+h1 'all'
+$results | ft -AutoSize  GroupName, Technique, Throughput, RelativeSpeed, Time
+hr -fg magenta
+
+h1 (Join-String -in $PSCommandPath -f "File: {0}")
+h1 'sort: Technique, Group'
+$results
+    | sort Technique, Groupname
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput
+
+h1 'sort: Group, Technique'
+$results
+    | sort GroupName, Technique
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput
+
+h1 'sort: Time'
+$results
+    | sort Time, Technique
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput
diff --git a/Pwsh/Benchmark/Linq.EnumerableRange.benchmark.ps1 b/Pwsh/Benchmark/Linq.EnumerableRange.benchmark.ps1
@@ -0,0 +1,79 @@
+@'
+Outputs:
+
+# grouped
+
+
+'@
+h1 (Join-String -f 'File: {0}' -in $PSCommandPath)
+
+function Measure.Group {
+    [CmdletBinding()]
+    param(
+        # [ValidateNotNullOrWhiteSpace()]
+        # [Alias('Label')]
+        # [string]$GroupName,
+
+        # [ValidateNotNullOrWhiteSpace()]
+        # [string]$CommandName,
+
+        [int]$RepeatCount = 2,
+
+        [Management.Automation.ActionPreference]$CommandErrorActionPref = 'Continue',
+        [switch]$AsJob = $true
+    )
+
+
+    Measure-Benchmark -AsJob:$AsJob -ea 'ignore' -Group $GroupName -RepeatCount $RepeatCount -Technique @{
+        'Nums = [EnumerableRange]::(0, 4mb )' = {
+            $nums = [Linq.EnumerableRange]::(0, 1mb)
+        }
+        'Nums = 0..1mb' = {
+            $nums = 0..1mb
+        }
+        '[EnumerableRange]::(0, 1mb ) | %{ $_ }' = {
+            $nums = [Linq.EnumerableRange]::(0, 1mb) | %{ $_ }
+        }
+        'Nums = 0..1mb | %{ $_ }' = {
+            $nums = 0..1mb | %{ $_ }
+        }
+    } | sort-Object Time -desc
+}
+
+'starting jobs...' | write-host -back 'blue'
+$results =  @(
+    # Measure.Group -AsJob -GroupName 'Exists' -CommandName 'pwsh' -CommandErrorActionPref 'Continue'
+    Measure.Group -AsJob
+)
+    | Receive-Job -Wait -AutoRemoveJob
+# $results =  @(
+#     Measure.Group -AsJob -ea 'ignore' -ov 'ovA' -GroupName 'Exists_eaI' -CommandName 'pwsh' -CommandErrorActionPref 'Continue'
+#     Measure.Group -AsJob -ea 'ignore' -ov 'ovB' -GroupName 'Missing_eaI' -CommandName 'missing' -CommandErrorActionPref 'ignore'
+#     Measure.Group -AsJob -ea 'continue' -ov 'ovC' -GroupName 'Missing_eaC' -CommandName 'missing' -CommandErrorActionPref 'ignore'
+# )
+#     | Receive-Job -Wait -AutoRemoveJob
+
+'$results = {0}' -f $Results.count
+
+h1 'grouped'
+$results | ft -AutoSize  GroupName, Technique, Throughput, RelativeSpeed, Time
+
+h1 'all'
+$results | ft -AutoSize  GroupName, Technique, Throughput, RelativeSpeed, Time
+hr -fg magenta
+
+h1 (Join-String -in $PSCommandPath -f "File: {0}")
+h1 'sort: Technique, Group'
+$results
+    | sort Technique, Groupname
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput
+
+h1 'sort: Group, Technique'
+$results
+    | sort GroupName, Technique
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput
+
+h1 'sort: Time'
+$results
+    | sort Time, Technique
+    | ft -AutoSize Technique, Time, RelativeSpeed, GroupName, Throughput