.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/debug/metrics.go

   1 // Copyright 2019 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package debug
   6
   7 import (
   8         "golang.org/x/tools/internal/event/export/metric"
   9         "golang.org/x/tools/internal/event/label"
  10         "golang.org/x/tools/internal/lsp/debug/tag"
  11 )
  12
  13 var (
  14         // the distributions we use for histograms
  15         bytesDistribution        = []int64{1 << 10, 1 << 11, 1 << 12, 1 << 14, 1 << 16, 1 << 20}
  16         millisecondsDistribution = []float64{0.1, 0.5, 1, 2, 5, 10, 50, 100, 500, 1000, 5000, 10000, 50000, 100000}
  17
  18         receivedBytes = metric.HistogramInt64{
  19                 Name:        "received_bytes",
  20                 Description: "Distribution of received bytes, by method.",
  21                 Keys:        []label.Key{tag.RPCDirection, tag.Method},
  22                 Buckets:     bytesDistribution,
  23         }
  24
  25         sentBytes = metric.HistogramInt64{
  26                 Name:        "sent_bytes",
  27                 Description: "Distribution of sent bytes, by method.",
  28                 Keys:        []label.Key{tag.RPCDirection, tag.Method},
  29                 Buckets:     bytesDistribution,
  30         }
  31
  32         latency = metric.HistogramFloat64{
  33                 Name:        "latency",
  34                 Description: "Distribution of latency in milliseconds, by method.",
  35                 Keys:        []label.Key{tag.RPCDirection, tag.Method},
  36                 Buckets:     millisecondsDistribution,
  37         }
  38
  39         started = metric.Scalar{
  40                 Name:        "started",
  41                 Description: "Count of RPCs started by method.",
  42                 Keys:        []label.Key{tag.RPCDirection, tag.Method},
  43         }
  44
  45         completed = metric.Scalar{
  46                 Name:        "completed",
  47                 Description: "Count of RPCs completed by method and status.",
  48                 Keys:        []label.Key{tag.RPCDirection, tag.Method, tag.StatusCode},
  49         }
  50 )
  51
  52 func registerMetrics(m *metric.Config) {
  53         receivedBytes.Record(m, tag.ReceivedBytes)
  54         sentBytes.Record(m, tag.SentBytes)
  55         latency.Record(m, tag.Latency)
  56         started.Count(m, tag.Started)
  57         completed.Count(m, tag.Latency)
  58 }