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Fix by @Explorer09 (see discussion on #355).
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(Cherry-picked from d56bcd8e0d8d6a177fc2e40db32fc73ea4588684, the
experimental graph coloring branch)
The variable 'dot' in GraphMeterMode_draw now means "maximum number of
dots per value (column) in graph". The old meaning was "amount of value
that is to be represented by a dot" and was always a fraction. Due to
a limitation in floating point computing, if GRAPH_HEIGHT were not a
power of 2, then rounding errors will occur on numbers like (1.0/3).
(Currently GRAPH_HEIGHT is 4 and so no precision loss.) 'dot' was used
as a divisor, and it's "division by a reciprocal". We change that to
simple multiplication.
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(Cherry-picked from e93028d7fa0c5f00b5dc3336fd28abaf905cd572, the
experimental graph coloring branch)
Currently GRAPH_HEIGHT=4 . This prevents hard-coding the height of the graph
meters, and allows user to change it at compile-time.
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With the CLAMP macro replacing the combination of MIN and MAX, we will
have at least two advantages:
1. It's more obvious semantically.
2. There are no more mixes of confusing uses like MIN(MAX(a,b),c) and
MAX(MIN(a,b),c) and MIN(a,MAX(b,c)) appearing everywhere. We unify
the 'clamping' with a single macro.
Note that the behavior of this CLAMP macro is different from
the combination `MAX(low,MIN(x,high))`.
* This CLAMP macro expands to two comparisons instead of three from
MAX and MIN combination. In theory, this makes the code slightly
smaller, in case that (low) or (high) or both are computed at
runtime, so that compilers cannot optimize them. (The third
comparison will matter if (low)>(high); see below.)
* CLAMP has a side effect, that if (low)>(high) it will produce weird
results. Unlike MIN & MAX which will force either (low) or (high) to
win. No assertion of ((low)<=(high)) is done in this macro, for now.
This CLAMP macro is implemented like described in glib
<http://developer.gnome.org/glib/stable/glib-Standard-Macros.html>
and does not handle weird uses like CLAMP(a++, low++, high--) .
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Thank you @Explorer09 for the report!
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Signed-off-by: Christian Hesse <mail@eworm.de>
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Dynamic unit
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Signed-off-by: Christian Hesse <mail@eworm.de>
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If the terminal has no font with braille characters we see... Nothing
useful. Use an ASCII blank at least, so we have an idea about what's
going on.
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* Use MIN() and MAX() to make sure values are inside bounds. This should
fix an issue where Meters were missing dots at the bottom.
* Remove variable 'level' and calculate on the fly.
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With more dimensional arrays we have to define the array size. Use
one dimensional arrays to be more flexible.
Additionally this allows to shrink array size for ASCII.
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Fixes building on case-insensitive filesystems where String.h gets confused with <string.h>.
From d734dacea0a10d0465dad4e95b3421511e7da112 Mon Sep 17 00:00:00 2001
From: David Hunt <dhunt@iolanthe.attlocal.net>
Date: Sat, 11 Jul 2015 20:56:31 -0500
Subject: [PATCH 1/8] Rename String to StringUtils
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Kinda runs, but functionality from the original main loop
is still missing. Patience.
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This is a work-in-progress, code is currently broken.
(Some actions, and notably, the header, are missing.)
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Set up environment to move other meters.
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(Patch by Dawid Gajownik)
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See https://bugzilla.redhat.com/show_bug.cgi?id=987805 for details.
(thanks to Dawid Gajownik for the detailed analysis!)
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UTF-8 display of big numbers.
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* Performance improvements
* Support for splitting CPU meters into two or four columns
(thanks to Wim Heirman)
* Switch from PLPA, which is now deprecated, to HWLOC.
* Bring back support for native Linux sched_setaffinity,
so we don't have to use HWLOC where we don't need to.
* Support for typing in user names and column fields in selection panels.
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(thanks to Sean Noonan)
* Meters update in every screen (no longer halting while on Setup, etc.)
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Fix subtree hiding
Fix reading of CPU values in hidden threads
Fix hiding of zombie processes as kernel threads
Remove "debug proc" code
Code cleanup in processElements
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contributed by Ian Hands
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Reduces resulting code size.
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flag, which requires libncursesw.
Thanks to Sergej Pupykin!
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Avoid unnecessary operations when processing entries on ProcessList.
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disable useless code in release builds such as runtime type-checking on
dynamic data structures and process fields that are not being computed,
faster(?) method for verifying the process owner (still need to ensure
correctness), don't destroy and create process objects for hidden kernel
threads over and over. Phew. I shouldn't be doing all this today, but I
could not resist.
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