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33 lines
825 B
CoffeeScript
33 lines
825 B
CoffeeScript
Settings = require('settings-sharelatex')
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logger = require('logger-sharelatex')
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deltaMs = (ta, tb) ->
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nanoSeconds = (ta[0]-tb[0])*1e9 + (ta[1]-tb[1])
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milliSeconds = Math.floor(nanoSeconds*1e-6)
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return milliSeconds
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module.exports = class Profiler
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LOG_CUTOFF_TIME: 1000
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constructor: (@name, @args) ->
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@t0 = @t = process.hrtime()
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@start = new Date()
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@updateTimes = []
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log: (label) ->
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t1 = process.hrtime()
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dtMilliSec = deltaMs(t1, @t)
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@t = t1
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@updateTimes.push [label, dtMilliSec] # timings in ms
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return @ # make it chainable
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end: (message) ->
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totalTime = deltaMs(@t, @t0)
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return if totalTime < @LOG_CUTOFF_TIME # skip anything less than cutoff
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args = {}
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for k,v of @args
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args[k] = v
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args.updateTimes = @updateTimes
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args.start = @start
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args.end = new Date()
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logger.log args, @name
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