GEM CLI very slow in 1.3.1

[diist]

I've updated my gems and now stackup v1.3.1 takes 30s to do anything on the command line. While it's "loading" I've got a ruby CPU thread at 100%. Same behaviour with other tools using that gem (shipper, swa).

$ time stackup --version
stackup v1.3.1
stackup --version  21.88s user 3.98s system 98% cpu 26.254 total

$ gem uninstall stackup
Successfully uninstalled stackup-1.3.1

$ gem install stackup -v "1.3.0"
Successfully installed stackup-1.3.0

$ time stackup --version
stackup v1.3.0
stackup --version  0.35s user 0.09s system 93% cpu 0.472 total

[mbelekar]

@diist I get the same percentage of cpu with older versions of stackup. It hits 97% cpu eventually no matter what version of stackup is being used.

➜  ~ time stackup --version
stackup v1.3.1
stackup --version  0.86s user 0.52s system 87% cpu 1.573 total

** Ran it again **
➜  ~ time stackup --version
stackup v1.3.1
stackup --version  0.78s user 0.44s system 97% cpu 1.252 total

** One more time **
➜  ~ time stackup --version
stackup v1.3.1
stackup --version  0.78s user 0.44s system 97% cpu 1.252 total

** Uninstalled 1.3.1 **
➜  ~ gem uninstall stackup
Successfully uninstalled stackup-1.3.1

** Installed 1.3.0 **
➜  ~ gem install stackup -v "1.3.0"
➜  ~ time stackup --version
stackup v1.3.0
stackup --version  0.48s user 0.15s system 90% cpu 0.693 total

** Ran it again **
➜  ~ time stackup --version
stackup v1.3.0
stackup --version  0.42s user 0.12s system 97% cpu 0.552 total

** Uninstalled 1.3.0 **
➜  ~ gem uninstall stackup
Successfully uninstalled stackup-1.3.0

** Installed version 1.2.0 **
➜  ~ gem install stackup -v "1.2.0"
➜  ~ time stackup --version
stackup v1.2.0
stackup --version  0.42s user 0.12s system 97% cpu 0.555 total

[diist]

Oh I wasn't referring to the CPU usage returned by time. What I meant is during the 26.254s it takes to load I can see a ruby thread going nuts using top in another terminal. You don't seem to have that issue even though 1.3.1 seems to take twice as long to load for you.

[tigris]

G'day @diist - can you share what version of ruby you have, and what OS you are on?

[diist]

Currently I'm experiencing the issue with Ruby 2.3.1p112 on macOS Sierra 10.12.6

[tigris]

I wonder if this might be related?

https://github.com/aws/aws-sdk-ruby/issues/1811

[diist]

That's probably it, a gem uninstall --all --force "fixed" it! I'm down to 0.5s now.

Surely stackup doesn't need all of the 150 aws-sdk-* gems?

[mdub]

Yeah, I'd be a good idea to get more specific about the gems stackup uses:

• https://github.com/realestate-com-au/stackup/blob/master/stackup.gemspec#L24-L25

[diist]

Could you release a new version? The issue is back for me and uninstalling all the gems doesn't do the trick anymore 😢 . Note that my hard drive is super slow and might be dying.

[mdub]

I've released 1.4.0, @diist.