!8 minwidth now accepts a percentage of time with %

From: @maskinghk 
Reviewed-by: @chenwei_kernel 
Signed-off-by: @chenwei_kernel

0001-minwidth-now-accepts-a-percentage-of-time-with-%.patch

@@ -0,0 +1,89 @@
+From b8989aab9a0815d44014f993127390200ecd23c7 Mon Sep 17 00:00:00 2001
+From: Ben Olson <matthew.olson@intel.com>
+Date: Tue, 17 Oct 2023 15:31:51 -0500
+Subject: [PATCH] minwidth now accepts a percentage of time with %
+
+---
+ README.md     |  3 ++-
+ flamegraph.pl | 26 ++++++++++++++++++++++----
+ 2 files changed, 24 insertions(+), 5 deletions(-)
+
+diff --git a/README.md b/README.md
+index 1aa3ecda..ee1b3eee 100644
+--- a/README.md
++++ b/README.md
+@@ -167,7 +167,8 @@ USAGE: ./flamegraph.pl [options] infile > outfile.svg
+ 	--subtitle TEXT  # second level title (optional)
+ 	--width NUM      # width of image (default 1200)
+ 	--height NUM     # height of each frame (default 16)
+-	--minwidth NUM   # omit smaller functions (default 0.1 pixels)
++	--minwidth NUM   # omit smaller functions. In pixels or use "%" for 
++	                 # percentage of time (default 0.1 pixels)
+ 	--fonttype FONT  # font type (default "Verdana")
+ 	--fontsize NUM   # font size (default 12)
+ 	--countname TEXT # count type label (default "samples")
+diff --git a/flamegraph.pl b/flamegraph.pl
+index d2172b61..c5a7bc3d 100755
+--- a/flamegraph.pl
++++ b/flamegraph.pl
+@@ -103,7 +103,7 @@
+ my $frameheight = 16;           # max height is dynamic
+ my $fontsize = 12;              # base text size
+ my $fontwidth = 0.59;           # avg width relative to fontsize
+-my $minwidth = 0.1;             # min function width, pixels
++my $minwidth = 0.1;             # min function width, pixels or percentage of time
+ my $nametype = "Function:";     # what are the names in the data?
+ my $countname = "samples";      # what are the counts in the data?
+ my $colors = "hot";             # color theme
+@@ -134,7 +134,8 @@ sub usage {
+ 	--subtitle TEXT  # second level title (optional)
+ 	--width NUM      # width of image (default 1200)
+ 	--height NUM     # height of each frame (default 16)
+-	--minwidth NUM   # omit smaller functions (default 0.1 pixels)
++	--minwidth NUM   # omit smaller functions. In pixels or use "%" for 
++	                 # percentage of time (default 0.1 pixels)
+ 	--fonttype FONT  # font type (default "Verdana")
+ 	--fontsize NUM   # font size (default 12)
+ 	--countname TEXT # count type label (default "samples")
+@@ -165,7 +166,7 @@ sub usage {
+ 	'encoding=s'  => \$encoding,
+ 	'fontsize=f'  => \$fontsize,
+ 	'fontwidth=f' => \$fontwidth,
+-	'minwidth=f'  => \$minwidth,
++	'minwidth=s'  => \$minwidth,
+ 	'title=s'     => \$titletext,
+ 	'subtitle=s'  => \$subtitletext,
+ 	'nametype=s'  => \$nametype,
+@@ -224,6 +225,16 @@ sub usage {
+ 	die "Notes string can't contain < or >"
+ }
+ 
++# Ensure minwidth is a valid floating-point number,
++# print usage string if not
++my $minwidth_f;
++if ($minwidth =~ /^([0-9.]+)%?$/) {
++	$minwidth_f = $1;
++} else {
++	warn "Value '$minwidth' is invalid for minwidth, expected a float.\n";
++	usage();
++}
++
+ # background colors:
+ # - yellow gradient: default (hot, java, js, perl)
+ # - green gradient: mem
+@@ -703,7 +714,14 @@ sub flow {
+ $timemax ||= $time;
+ 
+ my $widthpertime = ($imagewidth - 2 * $xpad) / $timemax;
+-my $minwidth_time = $minwidth / $widthpertime;
++
++# Treat as a percentage of time if the string ends in a "%".
++my $minwidth_time;
++if ($minwidth =~ /%$/) {
++	$minwidth_time = $timemax * $minwidth_f / 100;
++} else {
++	$minwidth_time = $minwidth_f / $widthpertime;
++}
+ 
+ # prune blocks that are too narrow and determine max depth
+ while (my ($id, $node) = each %Node) {

flame.spec

@@ -7,10 +7,13 @@
 Name:           flamegraph
 Version:        1.0
 Summary:        Stack trace visualizer
-Release:        1
+Release:        2
 License:        CDDL-1.0
 URL:            http://www.brendangregg.com/flamegraphs.html
 Source0:        https://github.com/brendangregg/FlameGraph/FlameGraph-%{commit}.tar.gz
+
+Patch1:         0001-minwidth-now-accepts-a-percentage-of-time-with-%.patch
+
 BuildArch:      noarch
 BuildRequires:  help2man
 BuildRequires:  perl-generators
@@ -151,5 +154,8 @@ cp -p *.1 %{buildroot}%{_mandir}/man1
 %{_mandir}/man1/stackcollapse-xdebug.php.1*
 	
 %changelog
+* Fri Apr 18 2025 maxin <maxin@xfusion.com> - 1.0-2
+- minwidth now accepts a percentage of time with %
+
 * Sat Aug 20 2022 zhujunhao <zhujunhao11@huawei.com> - 1.0-1
 - init package