mirror of https://github.com/etcd-io/dbtester.git
111 lines
2.7 KiB
Go
111 lines
2.7 KiB
Go
// Copyright 2017 CoreOS, Inc.
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//
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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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package analyze
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import (
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"fmt"
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"strconv"
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"github.com/gyuho/dataframe"
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)
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// sysMetricsColumnsToRead is already aggregated
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// and interpolated by unix second.
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var sysMetricsColumnsToRead = []string{
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"UNIX-SECOND",
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"VOLUNTARY-CTXT-SWITCHES",
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"NON-VOLUNTARY-CTXT-SWITCHES",
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"CPU-NUM",
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"LOAD-AVERAGE-1-MINUTE",
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"VMRSS-NUM",
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"READS-COMPLETED",
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"READS-COMPLETED-DELTA",
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"SECTORS-READ",
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"SECTORS-READ-DELTA",
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"WRITES-COMPLETED",
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"WRITES-COMPLETED-DELTA",
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"SECTORS-WRITTEN",
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"SECTORS-WRITTEN-DELTA",
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"READ-BYTES-DELTA",
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"WRITE-BYTES-DELTA",
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"RECEIVE-BYTES-NUM",
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"RECEIVE-BYTES-NUM-DELTA",
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"TRANSMIT-BYTES-NUM",
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"TRANSMIT-BYTES-NUM-DELTA",
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"EXTRA", // will be converted to 'CLIENT-NUM'
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}
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type testData struct {
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filePath string
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frontUnixSecond int64
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lastUnixSecond int64
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frame dataframe.Frame
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}
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// readSystemMetrics extracts only the columns that we need for analyze.
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func readSystemMetrics(fpath string) (data testData, err error) {
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originalFrame, err := dataframe.NewFromCSV(nil, fpath)
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if err != nil {
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return testData{}, err
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}
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data.filePath = fpath
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data.frame = dataframe.New()
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var unixSecondCol dataframe.Column
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for _, name := range sysMetricsColumnsToRead {
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var column dataframe.Column
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column, err = originalFrame.Column(name)
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if err != nil {
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return testData{}, err
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}
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if err = data.frame.AddColumn(column); err != nil {
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return testData{}, err
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}
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if name == "UNIX-SECOND" {
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unixSecondCol = column
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}
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}
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// get first(minimum) unix second
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fv, ok := unixSecondCol.FrontNonNil()
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if !ok {
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return testData{}, fmt.Errorf("FrontNonNil %s has empty Unix time %v", fpath, fv)
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}
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fs, ok := fv.String()
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if !ok {
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return testData{}, fmt.Errorf("cannot String %v", fv)
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}
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data.frontUnixSecond, err = strconv.ParseInt(fs, 10, 64)
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if err != nil {
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return testData{}, err
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}
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// get last(maximum) unix second
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bv, ok := unixSecondCol.BackNonNil()
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if !ok {
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return testData{}, fmt.Errorf("BackNonNil %s has empty Unix time %v", fpath, fv)
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}
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bs, ok := bv.String()
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if !ok {
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return testData{}, fmt.Errorf("cannot String %v", bv)
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}
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data.lastUnixSecond, err = strconv.ParseInt(bs, 10, 64)
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if err != nil {
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return testData{}, err
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}
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return
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}
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