We are still actively working on the spam issue.
Difference between revisions of "Tweaking Linux"
(→Use tcmalloc/jemalloc instead of Glibc malloc) |
(→Use tcmalloc/jemalloc instead of Glibc malloc) |
||
| Line 7: | Line 7: | ||
===Use tcmalloc/jemalloc instead of Glibc malloc=== | ===Use tcmalloc/jemalloc instead of Glibc malloc=== | ||
| + | {{warning|this is NOT recommended and may cause segfaults IF your piece of software statically links a malloc implementation. Doing it on a per-program basis is safer.}} | ||
Glibc's malloc is not as performant or scalable as tcmalloc, or even jemalloc. You can expect some small to massive performance gains[https://github.com/blog/1422-tcmalloc-and-mysql <sup>1</sup>], depending on your workload, by forcing software to use your memory allocator of choice. | Glibc's malloc is not as performant or scalable as tcmalloc, or even jemalloc. You can expect some small to massive performance gains[https://github.com/blog/1422-tcmalloc-and-mysql <sup>1</sup>], depending on your workload, by forcing software to use your memory allocator of choice. | ||
| Line 17: | Line 18: | ||
... where * is either jemalloc, or tcmalloc. | ... where * is either jemalloc, or tcmalloc. | ||
| − | |||
| − | |||
{{tip|<nowiki>to start a program once with your preferred implementation of malloc, issue LD_PRELOAD=/usr/lib/lib*.so program using the terminal.</nowiki>}} | {{tip|<nowiki>to start a program once with your preferred implementation of malloc, issue LD_PRELOAD=/usr/lib/lib*.so program using the terminal.</nowiki>}} | ||
Revision as of 21:11, 14 May 2016
DELETION CANDIDATE
Relevant discussion may be found on the talk page. Reason: Two tips does not a page make. If these tips are useful, they're better off on a more specific page
This dongle is a This article was created for Linux users to share tips and tricks with each other.
Contents
General tweaks
Use tcmalloc/jemalloc instead of Glibc malloc
Glibc's malloc is not as performant or scalable as tcmalloc, or even jemalloc. You can expect some small to massive performance gains1, depending on your workload, by forcing software to use your memory allocator of choice.
To do this, use your preferred editor to create:
/etc/ld.so.preload
/usr/lib/lib*.so
... where * is either jemalloc, or tcmalloc.
Xorg server
Disable mouse acceleration in X
In order to disable mouse acceleration use your text editor of choice to create:
/etc/X11/xorg.conf.d/50-mouse-acceleration.conf
Section "InputClass" Identifier "My Mouse" Option "AccelerationNumerator" "1" Option "AccelerationDenominator" "1" Option "AccelerationThreshold" "0" EndSection
Your config file will take effect the next time you start X.
