• Rollup Version: 1.1.2
• Operating System (or Browser): Mac OS
• Node Version: 10.11.0

How Do We Reproduce?

My Rollup config looks like this:

let plugins = [
    resolve({
        jsnext: true,
        browser: true
    }),
    commonjs(),
    includePaths({
        paths: ['app/.tmp/ts-out']
    }),
    json({
        compact: true
    })
];

const input = [
    'app/.tmp/ts-out/src/base/app.js'
];

export default [{
    input: input,
    treeshake: false,
    output: {
        dir: 'target/module',
        format: 'es',
        sourcemap: false
    },
    perf: true,
    plugins: plugins
}];

I run the rollup bundler using this command:

NODE_OPTIONS=--max_old_space_size=4096 ./node_modules/.bin/rollup -w -c app.rollup.config.js

Expected Behavior

It should be faster to build the bundle, like maybe <5s to be able to use it for development. This output is in the watch mode.

Actual Behavior

created target/module in 29.8s

BUILD: 18915ms, 957 MB / 2.62 GB

parse modules: 16553ms, 818 MB / 2.48 GB

• plugin 0 (node-resolve) - resolveId: 13ms, 297 kB / 2.24 GB
• plugin 0 (node-resolve) - resolveId (async): 113222ms, 3.76 GB / 2.48 GB
• plugin 1 (commonjs) - resolveId: 2ms, 3.42 kB / 2.48 GB
• plugin 1 (commonjs) - resolveId (async): 9ms, 504 kB / 2.48 GB
  load modules: 495723ms, 4.84 GB / 2.48 GB
• plugin 1 (commonjs) - load: 952ms, 478 kB / 2.48 GB
  generate ast: 867ms, 613 kB / 2.48 GB
  analyse ast: 8025ms, 718 MB / 2.48 GB
• plugin 1 (commonjs) - transform: 1ms, 2.06 kB / 1.76 GB
• plugin 1 (commonjs) - transform (async): 265ms, 1.22 MB / 1.76 GB
• plugin 1 (commonjs) - load (async): 2066ms, 6.05 MB / 2.47 GB
• plugin 3 (json) - transform: 1ms, 240 B / 1.77 GB

analyse dependency graph: 2048ms, 133 MB / 2.61 GB

mark included statements: 287ms, 1.74 MB / 2.61 GB

generate chunks: 23ms, 4.52 MB / 2.62 GB

GENERATE: 10654ms, -604 MB / 2.01 GB

render modules: 8269ms, 214 MB / 3.15 GB
render format: 125ms, 52.7 MB / 3.75 GB

Any help or pointers ? Do I need to do something more here ?