3 ms·

That's concerning, this is what I'm seeing on my system: babel 5: 0.47s user 0.06s system 101% cpu 0.519 total babel 6: 0.47s user 0.06s system 102% cp

That's concerning, this is what I'm seeing on my system: babel 5: 0.47s user 0.06s system 101% cpu 0.519 total babel 6: 0.47s user 0.06s system 102% cpu 0.508 total Want to hop in our Slack channel? http://slack.babeljs.io http://slack.babeljs.io

babelon5user 11y ago
Regarding the very slow babel 6.0.2 timings - something odd is going on. I removed the babel 6.0.2 install, installed node 5.0.0 which ships with npm 3.3.6, ran the install commands at the top of this thread and the babel 6.0.2 speed reached parity with babel 5.8 - both babel versions ran at around 0.55s. (edit) Then I leave the babel 6.0.2 install as is and then run it against a node 4.2.1 binary - the babel 6.0.2 speed is once again 0.55s - no difference. So I removed both the node 5.0.0 and babel 6.0.2 installs, re-installed node 4.2.1 with npm 2.14.7 and ran the following commands: npm install babel npm install babel-cli npm install babel-preset-es2015 node_modules/.bin/babel -V 6.0.2 (babel-core 6.0.2) echo "class Foo {}" | time node_modules/.bin/babel --presets es2015 2.55 real, 2.37 user, 0.23 sys So the babel 6.0.2 speed difference is not due the node version, but may have something to do with the different npm versions and how they install node_modules, or the fact that I installed the modules one at a time. Using Mac OS X 10.9.5 if it matters.
- babelon5user 11y ago
  Babel 6.0.2 slowness reproduced on Ubuntu 14.04 using only node 4.2.1 and npm 2.14.7: $ uname -v #94-Ubuntu SMP Thu Jun 18 00:27:10 UTC 2015 $ node -v v4.2.1 $ npm -v 2.14.7 $ npm install babel $ npm install babel-cli $ npm install babel-preset-es2015 $ node_modules/.bin/babel -V 6.0.2 (babel-core 6.0.2) $ echo "class Foo {}" | time node_modules/.bin/babel --presets es2015 2.49user 0.12system 0:02.58elapsed 101%CPU Compared to babel 5.8.23 on same Linux VM: $ babel -V 5.8.23 (babel-core 5.8.24) $ echo "class Foo {}" | time babel 0.58user 0.02system 0:00.57elapsed 106%CPU
  - babelon5user 11y ago
    So I've isolated the problem - babel 6.0.2 installed with npm 2.14.7 is slow, and when installed with npm 3.3.6 is fast. OS and node version is not a factor.

babelon5user 11y ago

Regarding the very slow babel 6.0.2 timings - something odd is going on. I removed the babel 6.0.2 install, installed node 5.0.0 which ships with npm 3.3.6, ran the install commands at the top of this thread and the babel 6.0.2 speed reached parity with babel 5.8 - both babel versions ran at around 0.55s. (edit) Then I leave the babel 6.0.2 install as is and then run it against a node 4.2.1 binary - the babel 6.0.2 speed is once again 0.55s - no difference. So I removed both the node 5.0.0 and babel 6.0.2 installs, re-installed node 4.2.1 with npm 2.14.7 and ran the following commands: npm install babel npm install babel-cli npm install babel-preset-es2015 node_modules/.bin/babel -V 6.0.2 (babel-core 6.0.2) echo "class Foo {}" | time node_modules/.bin/babel --presets es2015 2.55 real, 2.37 user, 0.23 sys So the babel 6.0.2 speed difference is not due the node version, but may have something to do with the different npm versions and how they install node_modules, or the fact that I installed the modules one at a time. Using Mac OS X 10.9.5 if it matters.

babelon5user 11y ago
Babel 6.0.2 slowness reproduced on Ubuntu 14.04 using only node 4.2.1 and npm 2.14.7: $ uname -v #94-Ubuntu SMP Thu Jun 18 00:27:10 UTC 2015 $ node -v v4.2.1 $ npm -v 2.14.7 $ npm install babel $ npm install babel-cli $ npm install babel-preset-es2015 $ node_modules/.bin/babel -V 6.0.2 (babel-core 6.0.2) $ echo "class Foo {}" | time node_modules/.bin/babel --presets es2015 2.49user 0.12system 0:02.58elapsed 101%CPU Compared to babel 5.8.23 on same Linux VM: $ babel -V 5.8.23 (babel-core 5.8.24) $ echo "class Foo {}" | time babel 0.58user 0.02system 0:00.57elapsed 106%CPU
- babelon5user 11y ago
  So I've isolated the problem - babel 6.0.2 installed with npm 2.14.7 is slow, and when installed with npm 3.3.6 is fast. OS and node version is not a factor.