It's caching dependencies, but not "build output" such as .cache / public for Gatsby. The log messag

It's caching dependencies, but not "build output" such as .cache / public for Gatsby. The log messages are pretty rough right now - we will clean them up soon

JJacob It's caching dependencies, but not "build output" such as .cache / public for Ga...

itsmatteomanf•8/25/23, 8:37 PM

Oh, gotcha

It's currently saving me 8s, so I went from 83s to 75s...

itsmatteomanf•8/25/23, 8:37 PM

Of course there is variations between builds

JJacob We're discussing internally, thank you for the feedback!

James•8/25/23, 8:38 PM

Thanks, please just let me know if I can provide any more info or feedback! The biggest breakage potential here is any kind of

postinstall

postinstall

, etc. scripts, outside of just unnecessary re-downloads. Skipping the

npm install

npm install

(etc.) step is gonna break any workflow like that that relies on something running, and it's not uncommon for

npm

npm

packages to do that kind of thing.

Iitsmatteomanf Oh, gotcha 🙂 It's currently saving me 8s, so I went from 83s to 75s...

itsmatteomanf•8/25/23, 8:39 PM

The actual build is ~6s.

JacobOP•8/25/23, 8:43 PM

We have some optimizations left to be made, so hopefully that will improve!

JacobOP•8/25/23, 9:29 PM

something I somehow didn't realize before this project is that a seemingly simple project has like 500-700MB of deps

James•8/25/23, 9:31 PM

Yeahhhh

node_modules

node_modules

bloat is fun. So many libraries end up publishing both build and source files, tests, docs, etc. inflating file size, and optimising output just isn't a priority

James•8/25/23, 9:32 PM

Simply installing

wrangler

wrangler

and nothing else in a project for example gives me almost 100MB of

node_modules

node_modules

JJames yeah I probably _could_ with this project, but root dir changing definitely caus...

JohnDotAwesome•8/25/23, 9:46 PM

I've got a change up on deck to fix the previous weirdness (in v2 only). If you set a root_dir previously, you couldn't use a package-lock.json (or similar) at the root of your repo because it would just be gone

James•8/25/23, 9:47 PM

Ah cool to hear, thanks for the info!

Cyb3r-Jak3•8/26/23, 2:42 AM

I don't think I have an projects using npm but if you ever need python/pip cache testing let me know

Yacine Hmito•8/28/23, 7:17 AM

I am not actively working on a project using any of the supported package managers. We're mainly using Deno. Like cyb3rjak3, let me know if/when you enable either Deno support or something customizable.

JJames Thanks, please just let me know if I can provide any more info or feedback! The ...

JacobOP•8/29/23, 7:59 PM

We're going to switch to caching npm/yarn global caches. Thanks!

YYacine Hmito I am not actively working on a project using any of the supported package manage...

JacobOP•8/29/23, 7:59 PM

How long does your project take to install dependencies with Deno in CI?

JJacob We're going to switch to caching npm/yarn global caches. Thanks!

James•8/29/23, 8:00 PM

Thanks for hearing my thoughts there

This makes a lot of sense to me and will mean way more use-cases can be supported too, like my weird

cd site && npm ci

cd site && npm ci

stuff.

JacobOP•8/29/23, 8:18 PM

We're working on some behind-the-scenes work this week, but should have an updated beta version early next week!

JJacob How long does your project take to install dependencies with Deno in CI?

Yacine Hmito•8/29/23, 9:35 PM

Downloading dependencies without the cache takes approximately 20 seconds, for a 100k LOC project with 600 files.

itsmatteomanf•8/30/23, 1:23 PM

So, looking at timings:

Downloading the cache takes 10 seconds. It'd be 15s to install them (ok, I don't have many, but still).
Node installation is another 15s.
Deployment of 6 files is another 12.
The actual build is 6s.

JacobOP•8/30/23, 6:58 PM

Thanks - I’m going to investigate dependency caching performance soon.
It’s tough to save much time for something that already only takes 15 seconds

JJacob Thanks - I’m going to investigate dependency caching performance soon. It’s toug...

itsmatteomanf•8/30/23, 6:59 PM

Oh, yeah, definitely! I guess the annoying part is that it’s wildly inconsistent (I got 1.5s in a subsequent build for the cache download) and the time to download node each time from node’s website.

itsmatteomanf•8/30/23, 6:59 PM

Deployment seems weirdly slow, but that has been the case for a while. It has some sort of overhead.

Iitsmatteomanf Oh, yeah, definitely! I guess the annoying part is that it’s wildly inconsistent...

JacobOP•8/30/23, 7:11 PM

Can you send me deployment IDs of a slow + fast one?

JJacob Can you send me deployment IDs of a slow + fast one?

itsmatteomanf•8/30/23, 7:22 PM

Oh, wait. Might be I got confused on one that gets skipped due to dep changes

itsmatteomanf•8/30/23, 7:22 PM

They seem to consistently be around 10s, but let me check a couple more.

itsmatteomanf•8/30/23, 7:23 PM

Yeah 8 to 12, sorry

itsmatteomanf•8/30/23, 7:27 PM

(Might make sense to log a skipping message, to clarify it's actually being skipped)

JacobOP•8/30/23, 7:42 PM

Ah yes the skipping would do it. Definitely need log improvements there

JacobOP•8/30/23, 7:43 PM

I wonder if we’re hitting disk IO limits

itsmatteomanf•8/30/23, 7:43 PM

Wasn't Node cached in the image itself? I'm seeing it downloading all the time, and installing.

JJacob I wonder if we’re hitting disk IO limits

itsmatteomanf•8/30/23, 7:43 PM

Probably.

itsmatteomanf•8/30/23, 7:43 PM

Locally it's ~220MB

itsmatteomanf•8/30/23, 7:44 PM

Build ID:

29086095-4c4f-4c08-9f44-22e5756a7f4f

29086095-4c4f-4c08-9f44-22e5756a7f4f

Iitsmatteomanf Wasn't Node cached in the image itself? I'm seeing it downloading all the time, ...

JacobOP•8/30/23, 7:46 PM

Do you have NODE_VERSION set?

JJacob Do you have NODE_VERSION set?

itsmatteomanf•8/30/23, 7:46 PM

I set it from

.nvmrc

.nvmrc

JacobOP•8/30/23, 7:50 PM

The version of node 20 that we currently cache in the image is 20.1.0, so any other patches will have to be downloaded

itsmatteomanf•8/30/23, 7:50 PM

Oh, I set it to latest

v20

v20

JacobOP•8/30/23, 7:51 PM

which means you want the latest v20 installed, right? Not the one we cache?

itsmatteomanf•8/30/23, 7:52 PM

I mean, I'd have to pin it to your version to get that, I'd like to not pin it to 2 minor before current

JacobOP•8/30/23, 7:53 PM

Yeah that's why we prefer newer versions rather than what's cached

itsmatteomanf•8/30/23, 7:54 PM

Yeah, but then you get Node acting up like before, I'd assume it might make sense to cache a version once it's downloaded once, or not?

JacobOP•8/30/23, 7:54 PM

what do you mean by node acting up?

itsmatteomanf•8/30/23, 7:54 PM

I mean, it's a simple Worker with an R2 binding, to reduce the load on them and reduce this case.

JJacob what do you mean by node acting up?

itsmatteomanf•8/30/23, 7:54 PM

It often hangs on the download.

JacobOP•8/30/23, 7:55 PM

are you talking about caching with the new build caching, or the version that ships directly in the image?

itsmatteomanf•8/30/23, 7:55 PM

df4f2bc3-acd3-4b5d-8c74-475f3ed2303d

df4f2bc3-acd3-4b5d-8c74-475f3ed2303d

10 minutes to download Node

v20.3.1

v20.3.1

JJacob are you talking about caching with the new build caching, or the version that sh...

itsmatteomanf•8/30/23, 7:56 PM

Caching it in the caching of the dependencies, since it exists now. Either proxy the node files with some caching (or even R2), or put it in the deps cache.

JacobOP•8/30/23, 7:57 PM

We may do that in the future, but tool caching is out of scope for the current sprint. I'll raise this with the team - 10 minutes is a long time

itsmatteomanf•8/30/23, 7:58 PM

Gotcha, hopefully it's resolved soon, I have seen it fail altogether, but less so lately since the changes in node's infra.

James•8/31/23, 10:28 AM

I'm not really seeing that much of a difference in build times with caching personally. It's taking the same amount of time to restore the dependencies from the cache as it was to download the depedencies with pnpm.

itsmatteomanf•8/31/23, 11:05 AM

Yeah, same here but my lists are small, so can’t really conclude much…

It's caching dependencies, but not "build output" such as .cache / public for Gatsby. The log messag

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