Hi Michal,

Thanks, this is definitely helpful.

Have you checked if your improvement is tested. I think it should be tested
by the test_devtool_add_npm under meta/lib/oeqa/selftest/cases/devtool.py

See:
 - https://wiki.yoctoproject.org/wiki/Oe-selftest
 -
https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=22dd46cc34629d0750177fddff2e1c178c854340

Best Regards,
Jean-Marie


On Wed, Dec 2, 2020 at 5:26 PM <[email protected]> wrote:

> Task do_configure delivered by npm.bbclass takes a lot of time, the longer
> shrinkwrap dependency list the longer time needed for do_configure to
> execute.
> Following improvement allows to execute do_configure on any available CPI
> threads.
>
> diff --git a/bitbake/lib/bb/fetch2/npmsw.py
> b/bitbake/lib/bb/fetch2/npmsw.py
> index 0c3511d8ab..0e6075859c 100644
> --- a/bitbake/lib/bb/fetch2/npmsw.py
> +++ b/bitbake/lib/bb/fetch2/npmsw.py
> @@ -29,8 +29,9 @@ from bb.fetch2.npm import npm_integrity
>  from bb.fetch2.npm import npm_localfile
>  from bb.fetch2.npm import npm_unpack
>  from bb.utils import is_semver
> +from concurrent.futures import ThreadPoolExecutor
>
> -def foreach_dependencies(shrinkwrap, callback=None, dev=False):
> +def foreach_dependencies(shrinkwrap, callback=None, dev=False,
> executor=None):
>      """
>          Run a callback for each dependencies of a shrinkwrap file.
>          The callback is using the format:
> @@ -49,7 +50,10 @@ def foreach_dependencies(shrinkwrap, callback=None,
> dev=False):
>                      continue
>                  elif deps[name].get("bundled", False):
>                      continue
> -                callback(name, deps[name], subtree)
> +                if executor:
> +                    executor.submit(callback, name=name,
> params=deps[name], deptree=subtree)
> +                else:
> +                    callback(name, deps[name], subtree)
>
>      _walk_deps(shrinkwrap.get("dependencies", {}), [])
>
> diff --git a/meta/classes/npm.bbclass b/meta/classes/npm.bbclass
> index 068032a1e5..1869b63cdb 100644
> --- a/meta/classes/npm.bbclass
> +++ b/meta/classes/npm.bbclass
> @@ -80,6 +80,7 @@ python npm_do_configure() {
>      from bb.fetch2.npm import npm_unpack
>      from bb.fetch2.npmsw import foreach_dependencies
>      from bb.progress import OutOfProgressHandler
> +    from concurrent.futures import ThreadPoolExecutor
>
>      bb.utils.remove(d.getVar("NPM_CACHE"), recurse=True)
>      bb.utils.remove(d.getVar("NPM_PACKAGE"), recurse=True)
> @@ -164,9 +165,11 @@ python npm_do_configure() {
>              progress_done += 1
>              progress.write("%d/%d" % (progress_done, progress_total))
>
> +    executor = ThreadPoolExecutor(max_workers = os.cpu_count())
>      dev = bb.utils.to_boolean(d.getVar("NPM_INSTALL_DEV"), False)
>      foreach_dependencies(orig_shrinkwrap, _count_dependency, dev)
> -    foreach_dependencies(orig_shrinkwrap, _cache_dependency, dev)
> +    foreach_dependencies(orig_shrinkwrap, _cache_dependency, dev,
> executor)
> +    executor.shutdown(True)
>
>      # Configure the main package
>      with tempfile.TemporaryDirectory() as tmpdir:
>
>
>
>
> 
>
>
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