On 11/04/2017 04:49, Tijl Coosemans wrote:
On Wed, 01 Nov 2017 21:10:13 +0100 Jan Beich <[email protected]> wrote:
Jan Beich <[email protected]> writes:
Andrea Venturoli <[email protected]> writes:
I'm on 10.3/amd64 with firefox-esr 52.3.0.
Since a few days my 4GiB desktop is crawling due to swap usage and
looking at top, I see FireFox using almost 7GiB of RAM (SIZE column),
2.5 of which are "RES".
Check about:memory and Devolper Tools -> Memory for clues. For more
advanced debugging (DMD, Refcount tracing) you'd need a custom build.
Firefox on FreeBSD is known to consume more memory than on other
platforms because it uses system jemalloc rather than mozjemalloc.
Mozilla doesn't test memory usage without mozjemalloc. However, porting
mozjemalloc has stalled[1] unless someone helps.
[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1153683
If one is on Firefox 55+ or FreeBSD 12+ while suboptimal compared to
mozjemalloc the old jemalloc4 optimizations can be restored by
$ MALLOC_CONF="narenas:1,tcache:false" firefox ...
https://dxr.mozilla.org/mozilla-esr52/source/memory/build/jemalloc_config.cpp#35
This appears to be such a huge improvement that you should really put
this in the port even if it's still not as good as mozjemalloc.
i can confirm a huge perf improvement by reverting to jemalloc4. would
this patch ensure we use this by default until mozjemalloc for FreeBSD
is sorted out?
diff --git a/www/firefox/Makefile b/www/firefox/Makefile
index 7da37422ad82..b9a349e5d217 100644
--- a/www/firefox/Makefile
+++ b/www/firefox/Makefile
@@ -46,7 +46,8 @@ FIREFOX_ICON_SRC=
${PREFIX}/lib/${MOZILLA}/browser/chrome/icons/default/default4
MOZ_EXPORT= BINDGEN_CFLAGS="-isystem${LOCALBASE}/include/nspr \
-isystem${LOCALBASE}/include/pixman-1" # XXX
bug 1341234
MOZ_OPTIONS= --enable-application=browser \
- --enable-official-branding
+ --enable-official-branding \
+ --enable-jemalloc=4
OPTIONS_DEFAULT= BUNDLED_CAIRO
OPTIONS_EXCLUDE= GNOMEUI
i'm not super familiar with how we build firefox but if this looks good
i can file a PR.
-pete
--
Pete Wright
[email protected]
@nomadlogicLA
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