Command line and full screen utilities for browsing procfs, a "pseudo" file system dynamically generated by Linux to provide information about the status of entries in its process table.
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Jim Warner 3e7a70396c top: give inspect search algorithm a significant boost
The Inspect find algorithm has always been challenging
given the possibility that 'rows' might contain binary
data. Be that as it may, two small changes have proven
to dramatically improve the performance of such scans.

The first involves the case wherein if no match on the
'substring' portion of a row was found, then a pointer
representing the substring was increased by the length
of the search string, not the better/longer substring.
Thus, portions of the substring were always rescanned!

The second performance boost was achieved in this way:
pre-scanning each raw row for just the first character
in the search string now determines if a full match is
even possible. Therefore, repeated unproductive strstr
calls on individual substrings within that row will be
avoided. In a nutshell, 1 'if' with '}' did the trick!

(now that we know a '.' + 2 spaces is squeezed to one)
(everything's perfectly justified, but it's just luck)

Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-12-02 13:39:53 +11:00
contrib docs: clarification to license headers in files 2012-03-03 18:41:11 +11:00
Documentation docs: mention linux 3.xx kernels are expected to work 2012-06-02 15:13:18 +10:00
include build-sys: add fileutils.h to dist package 2012-04-18 10:26:20 +02:00
lib lib/fileutils: fix compiler warnings 2012-11-06 22:28:30 +11:00
misc
po
proc pmap: use correct types for memory allocation 2012-11-06 22:22:11 +11:00
ps ps: cut out code unused code 2012-11-06 22:30:02 +11:00
testsuite Add missing fileutils test files 2012-10-31 22:47:48 +11:00
top top: give inspect search algorithm a significant boost 2012-12-02 13:39:53 +11:00
.gitignore Add -i option to w 2012-05-29 22:20:36 +10:00
AUTHORS
autogen.sh
ChangeLog
configure.ac build-sys: configure option --enable-skill did not work 2012-05-07 09:01:10 +02:00
COPYING license: update FSF addresses 2012-03-04 08:04:24 +11:00
COPYING.LIB license: update FSF addresses 2012-03-04 08:04:24 +11:00
free.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
free.c Show sizes > 4G correctly in bytes on 32-bit machines. 2012-06-27 06:47:38 +10:00
kill.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
Makefile.am fix sysctl.conf inclusion in dist tarballs 2012-10-31 22:42:03 +11:00
NEWS NEWS: updated with changes for the new release (3.3.6) 2012-11-27 22:08:02 +11:00
pgrep.1 Add -c count option to pkill 2012-11-21 22:11:17 +11:00
pgrep.c Add -c count option to pkill 2012-11-21 22:11:17 +11:00
pkill.1
pmap.1 Two new options for pmap, -X and -XX 2012-09-27 22:08:04 +10:00
pmap.c pmap: fix compiler warnings 2012-11-06 22:30:01 +11:00
pwdx.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
pwdx.c Fix pwdx argument parsing 2012-06-14 22:33:49 +10:00
README
skill.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
skill.c skill: fix compiler warnings 2012-11-06 22:28:30 +11:00
slabtop.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
slabtop.c all: check stdout and stderr status at exit 2012-03-23 15:57:53 +01:00
snice.1
sysctl.8 sysctl: restore old -p handling 2012-05-07 09:01:10 +02:00
sysctl.c sysctl: fix compiler warnings 2012-11-06 22:30:01 +11:00
sysctl.conf
sysctl.conf.5 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
tload.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
tload.c all: check stdout and stderr status at exit 2012-03-23 15:57:53 +01:00
uptime.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
uptime.c all: check stdout and stderr status at exit 2012-03-23 15:57:53 +01:00
vmstat.8 Minor fix with vmstat manpage for r column 2012-05-30 21:41:17 +10:00
vmstat.c vmstat: fix compiler warnings 2012-11-06 22:30:02 +11:00
w.1 Add -i option to w 2012-05-29 22:20:36 +10:00
w.c w: do not truncate command when width is not known 2012-07-15 12:49:22 +02:00
watch.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
watch.c watch: fix compiler warnings 2012-11-06 22:30:02 +11:00

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>