diff options
Diffstat (limited to 'benchmark/fs')
-rw-r--r-- | benchmark/fs/readfile-permission-enabled.js | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/benchmark/fs/readfile-permission-enabled.js b/benchmark/fs/readfile-permission-enabled.js new file mode 100644 index 0000000000..3053d5aa08 --- /dev/null +++ b/benchmark/fs/readfile-permission-enabled.js @@ -0,0 +1,72 @@ +// Call fs.readFile with permission system enabled +// over and over again really fast. +// Then see how many times it got called. +'use strict'; + +const path = require('path'); +const common = require('../common.js'); +const fs = require('fs'); +const assert = require('assert'); + +const tmpdir = require('../../test/common/tmpdir'); +tmpdir.refresh(); +const filename = path.resolve(tmpdir.path, + `.removeme-benchmark-garbage-${process.pid}`); + +const bench = common.createBenchmark(main, { + duration: [5], + encoding: ['', 'utf-8'], + len: [1024, 16 * 1024 * 1024], + concurrent: [1, 10], +}, { + flags: ['--experimental-permission', '--allow-fs-read=*', '--allow-fs-write=*'], +}); + +function main({ len, duration, concurrent, encoding }) { + try { + fs.unlinkSync(filename); + } catch { + // Continue regardless of error. + } + let data = Buffer.alloc(len, 'x'); + fs.writeFileSync(filename, data); + data = null; + + let reads = 0; + let benchEnded = false; + bench.start(); + setTimeout(() => { + benchEnded = true; + bench.end(reads); + try { + fs.unlinkSync(filename); + } catch { + // Continue regardless of error. + } + process.exit(0); + }, duration * 1000); + + function read() { + fs.readFile(filename, encoding, afterRead); + } + + function afterRead(er, data) { + if (er) { + if (er.code === 'ENOENT') { + // Only OK if unlinked by the timer from main. + assert.ok(benchEnded); + return; + } + throw er; + } + + if (data.length !== len) + throw new Error('wrong number of bytes returned'); + + reads++; + if (!benchEnded) + read(); + } + + while (concurrent--) read(); +} |