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https://github.com/prometheus-community/windows_exporter.git
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Jan-Otto KröpkeandClaude Opus 5.5
40d7514078
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build windows
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package pdh
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import (
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"fmt"
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"runtime"
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"testing"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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// BenchmarkRowSetInstanceNames measures repeated samples of an object with
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// many instances, like GPU Engine, without querying PDH.
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func BenchmarkRowSetInstanceNames(b *testing.B) {
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const instances = 500
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c := newRowSetTestCollector(true)
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items := make([]RawCounterItem, instances)
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for i := range items {
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items[i] = RawCounterItem{
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SzName: windows.StringToUTF16Ptr(fmt.Sprintf("pid_%d_luid_0x00000000_0x0000D1A5_phys_0_eng_%d_engtype_3D", 1000+i, i%8)),
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RawValue: RawCounter{CStatus: CstatusValidData, FirstValue: int64(i)},
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}
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}
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buf := unsafe.Slice((*byte)(unsafe.Pointer(unsafe.SliceData(items))), len(items)*int(unsafe.Sizeof(RawCounterItem{})))
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state := &collectState{}
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var dst []rowSetValues
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b.ReportAllocs()
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for b.Loop() {
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dst = dst[:0:0]
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rows := newRowSet(c, &dst, state)
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rows.addRawItems(0, buf, instances)
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rows.addRawItems(1, buf, instances)
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rows.finish()
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state.names.removeUnseen()
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state.valid = rows.valid
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}
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runtime.KeepAlive(items)
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}
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