top: update README with benchmarks using NLS support

This commit is contained in:
Jim Warner 2011-12-21 10:36:15 -06:00 committed by Craig Small
parent 873df28b64
commit e7f0906b58

View File

@ -325,3 +325,53 @@ notes:
displayed due to limited screen width
c only in a full screen xterm window could all common fields
actually be displayed
BENCHMARKS, Redux (for NLS) ==============================================
December, 2011 benchmarks produced on a much more modern
platform containing:
Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz
SMP with 4 cpus
reflected in the substantially reduced elapsed times.
Tested as root with nice -10 and using only common fields
but rcfiles specified identical sort fields and identical
settings for the 'B', 'b', 'x' and 'y' toggles (even though
the defaults are not necessarily identical).
Each test was run outside of X-windows at a linux console
offering 48 rows and 170 columns. This was done to reduce
contention which sometimes made comparisions problematic.
old-top = procps-3.2.8 (debian patched and memory leaking)
new-top = procps-ng-3.3.2 with NLS support
----------------------------------------------------------
The following comparisons were run with
-d0 -n5000
140 tasks & 275 threads
linux console (48x170) new-top old-top
d 1 win, lflgs_none 2.6 secs 15.0 secs + 577.0%
1 win, default 16.1 secs 19.3 secs
1 win, colors w/ x+y 16.6 secs 35.0 secs + 210.8%
e 1 win, show cpus 16.2 secs 20.1 secs + 124.1%
1 win, thread mode 31.8 secs 34.1 secs
f 1 win, every field on 30.5 secs 34.0 secs
1 win, cmdline 19.9 secs 23.1 secs
4 wins, default 31.9 secs 35.2 secs
4 wins, colors w/ x+y 29.2 secs 47.4 secs + 162.3%
g 1 win, b&w w/ bold x 30.0 secs 33.2 secs
h 1 win, scroll msg on 31.1 secs 33.9 secs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
notes:
d these represent the same anamoly as the original 'a' footnote
e these represent the '1' toggle, where each of 4 cpus was shown
(not possible on the original uniprocessor)
f every common field was turned on and all fields were visible
g on a black and white display, sort column was shown in bold
(further proof of column highlighting improvements)
h similar to 'g', but new top was showing scroll msg
(old top has no such provision)