mirror of
https://github.com/nabbar/golib.git
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96ed6f9a1f
- FIX: potential CWE-400 with bufio.ReadBytes & bufio.ReadSlices, with no limited read buffer - ADD: test to check overflow buffer with discard or error - REFACTOR: all buffering package, parsing process - UPDATE: doc, examples, test following changes - OPTIMIZE: rework code to optimize process - REWORK: benchmark to check benefice of optimization - FIX: wording error Package IOUtils/Multi: - REWORK: re-design all package to allow sequential/parallel mode - UPDATE: package with adaptive mode to allow switch automaticly between sequential and parallel mode following measurment of sample - OPTIMIZE: code to maximize bandwith and reduce time of write - UPDATE: documentation, test and comments - REWORK: testing organization and benchmark aggregation Package HttpServer: - FIX: bug with dial addr rewrite for healtcheck & testing PortUse Package Logger/HookFile: - FIX: bug with race condition on aggregator counter file Other: - Bump dependencies - FIX: format / import file
83 lines
2.7 KiB
Go
83 lines
2.7 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2025 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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package multi
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import "math"
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// Stats contains performance statistics for adaptive writer mode.
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// These metrics are used to monitor and debug adaptive mode behavior.
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type Stats struct {
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// AdaptiveMode indicates whether adaptive mode is enabled.
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// false = sticky mode (sequential or parallel), true = adaptive mode
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AdaptiveMode bool
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// WriterMode indicates the current write strategy.
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// false = sequential writes, true = parallel writes
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WriterMode bool
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// AverageLatency is the mean write latency in nanoseconds over the sample window.
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// This value is used to determine mode switching in adaptive mode.
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AverageLatency int64
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// SampleCollected is the number of write operations sampled in the current window.
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SampleCollected int64
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// WriterCounter is the current number of registered writers.
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WriterCounter int
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}
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// Stats returns current performance statistics for the Multi instance.
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// This includes adaptive mode status, current write mode, latency metrics,
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// and writer count. Returns zero values if no samples have been collected yet.
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func (o *mlt) Stats() Stats {
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var w int
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if i := o.lst.Load(); i > math.MaxInt {
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w = math.MaxInt
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} else {
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w = int(i)
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}
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if i := o.d.Load(); i != nil {
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s := i.Smp()
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return Stats{
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AdaptiveMode: o.adp.Load(),
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WriterMode: o.par.Load(),
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AverageLatency: i.Lat() / s,
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SampleCollected: s,
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WriterCounter: w,
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}
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} else {
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return Stats{
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AdaptiveMode: o.adp.Load(),
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WriterMode: o.par.Load(),
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AverageLatency: 0,
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SampleCollected: 0,
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WriterCounter: w,
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}
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}
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}
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