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On 2018-03-28T07:24:17+00:00 Daniel van Vugt wrote:

Created attachment 138392
gnome-shell-all-mmaps-at-startup.pdf

80% (512MB) of gnome-shell's memory mappings at start-up are due to
PulseAudio. This seems excessive.

Memory profile from Google heap profiler attached.

Although this may not be a bug. It might just be reserved address space
with very little physical memory impact...?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1759497/comments/3

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On 2018-03-28T07:36:07+00:00 Daniel van Vugt wrote:

Looks like maybe gnome-shell's use of libcanberra might be one of the
triggers.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1759497/comments/4

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On 2018-03-28T16:07:45+00:00 Tanu Kaskinen wrote:

Each "mempool" in pulseaudio is 64 MB by default, and there's one
mempool per client. Maybe gnome-shell has multiple connections to
pulseaudio? 8 connections sounds excessive, though... Maybe the server's
own mempool is visible in the client memory mapping too, so perhaps two
mempools per connection are visible in the client memory map. 4
connections sounds still a bit much, though.

The mempools should indeed not have full "physical" impact unless
they're actually fully used.

What if you set "shm-size-bytes = 33554432" (i.e. 32 MB) in
/etc/pulse/client.conf and /etc/pulse/daemon.conf and reboot? Does the
gnome-shell memory usage go down by 256 MB?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1759497/comments/6

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On 2018-07-30T09:41:07+00:00 Gitlab-migration wrote:

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has
been closed from further activity.

You can subscribe and participate further through the new bug through
this link to our GitLab instance:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/92.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1759497/comments/10


** Changed in: pulseaudio
       Status: Confirmed => Unknown

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https://bugs.launchpad.net/bugs/1759497

Title:
  80% (512MB) of gnome-shell's memory mappings at start up are due to
  PulseAudio

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