e77c8e8cf0
The 'refactor and enhance column width management' recent redesign produced many subsequent benefits, the latest of which is automatically sized fixed-width non-scalable columns. As expected, there was a cost associated with these many enhancements. That cost has now been identified as a 1-4% performance degradation, depending on which fields are being displayed. This increased cost arises principally from current drawing related function calls, whereas top-3.3.3 did most of its drawing via macros effectively inlining those duties. This commit inlines the equivalent drawing functions, thus eliminating the function call penalty, and places this top on a par with top-3.3.3. The trade off is a modest additional 4k in executable size. Signed-off-by: Jim Warner <james.warner@comcast.net>
COMPATIBILITY
This code is intended for use with Linux 2.6.xx, 3.x and
hopefully all future kernels.
INSTALLATION
If you are using git version of the project you need extra step.
./autogen.sh
After that, and everyone using .tar.xz version of procps-ng, can
do normal build. Read './configure --help' to select options for
your needs.
./configure
make
make install
If you have DejaGNU installed you can run optional test suite.
make check
HOW TO CONTRIBUTE
See Documentation/BUGS file.
PACKAGING
If you are a downstream maintainer (packager) for a Linux
distribution, please avoid causing troubles. This section
applies to you.
Avoid maintaining distribution specific patches. Send your
patches to upstream, where they are at least reviewed, if not
included.
Please forward bug reports. If your bug database is public and
busy enough to bother with, please make this known. Follow
Debian's lead in making the bug database easy to comment on via
email without need for an account.
For normal packages, ensure that you do not add debugging flags
to the CFLAGS variable.
UPSTREAM & BUG REPORTS
procps-ng <procps@freelists.org>