All of lore.kernel.org
 help / color / mirror / Atom feed
From: bugzilla@busybox.net
To: buildroot@uclibc.org
Subject: [Buildroot] [Bug 14996] Too many directories in BR2_EXTERNAL causes hang during make
Date: Fri, 16 Sep 2022 16:16:32 +0000	[thread overview]
Message-ID: <bug-14996-163-lQ0vzys3gh@https.bugs.busybox.net/> (raw)
In-Reply-To: <bug-14996-163@https.bugs.busybox.net/>

https://bugs.busybox.net/show_bug.cgi?id=14996

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned@buildroot.uclibc |yann.morin.1998@free.fr
                   |.org                        |
                 CC|                            |yann.morin.1998@free.fr
             Status|NEW                         |ASSIGNED

--- Comment #1 from Yann E. MORIN <yann.morin.1998@free.fr> ---
David, All,

Thanks for the report, and the detailed explanations (which I did not yet
entirely
groked, and will need a bit more time before I see the issue).

How many br2-external trees are you using? I've done a bit of testing
with 0 to 1000 br2-external trees, and here are the results:

$ time make BR2_EXTERNAL='' list-defconfigs
real    0m0.129s

$ time make BR2_EXTERNAL='(1 item)' list-defconfigs
real    0m0.138s

$ time make BR2_EXTERNAL='(10 item)' list-defconfigs
real    0m0.262s

$ time make BR2_EXTERNAL='(100 item)' list-defconfigs
real    0m1.912s

$ time make BR2_EXTERNAL='(1000 item)' list-defconfigs
real    0m19.344s

So, what we can see, is that it is roughly linear to the number of br2-external
trees. Even the 1000-tree case is far from appearing stuck (granted, it is a
bit
long, but after seeing 2s for 100 items, it did not feel excruciating to wait).

Also, I do not have any message from make 4.2.1 that reports any infinite
recursion.

Can you provide a bit more details on your configuration?

Regards,
Yann E. MORIN.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

  reply	other threads:[~2022-09-16 16:16 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-16 13:58 [Buildroot] [Bug 14996] New: Too many directories in BR2_EXTERNAL causes hang during make bugzilla
2022-09-16 16:16 ` bugzilla [this message]
2022-09-16 16:53 ` [Buildroot] [Bug 14996] " bugzilla
2022-09-16 17:39 ` bugzilla
2022-09-16 17:56 ` bugzilla
2022-09-16 18:40 ` bugzilla
2022-09-16 18:45 ` bugzilla
2022-09-16 19:19 ` bugzilla
2022-09-17  6:54 ` bugzilla
2022-09-17  7:36 ` bugzilla
2022-09-19 17:27 ` bugzilla
2022-09-19 21:06 ` bugzilla
2022-09-20 19:58 ` bugzilla
2022-09-20 20:00 ` bugzilla
2023-01-07 20:11 ` bugzilla

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-14996-163-lQ0vzys3gh@https.bugs.busybox.net/ \
    --to=bugzilla@busybox.net \
    --cc=buildroot@uclibc.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.