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process: expose uv_rusage on process.resourcesUsage()
As discussed in nodejs/diagnostics#161, the core should expose important metrics about the runtime, this PR's goal is to let user get the number of io request made, and lower level mertrics like the page faults and context switches. PR-URL: #28018 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Anna Henningsen <[email protected]>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,27 @@ | ||
'use strict'; | ||
require('../common'); | ||
const assert = require('assert'); | ||
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const rusage = process.resourceUsage(); | ||
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[ | ||
'userCPUTime', | ||
'systemCPUTime', | ||
'maxRSS', | ||
'sharedMemorySize', | ||
'unsharedDataSize', | ||
'unsharedStackSize', | ||
'minorPageFault', | ||
'majorPageFault', | ||
'swappedOut', | ||
'fsRead', | ||
'fsWrite', | ||
'ipcSent', | ||
'ipcReceived', | ||
'signalsCount', | ||
'voluntaryContextSwitches', | ||
'involuntaryContextSwitches' | ||
].forEach((n) => { | ||
assert.strictEqual(typeof rusage[n], 'number', `${n} should be a number`); | ||
assert(rusage[n] >= 0, `${n} should be above or equal 0`); | ||
}); |