250907.173604.CST [skip ci] revise perfdata.m and perfprof.m regarding clear and close

Author: zaikunzhang

matlab/tests/private/perfdata.m

@@ -98,8 +98,11 @@
     prof_output{iprec} = perfprof(frec, fmin, prof_options);
     %dataprof(frec, fmin, pdim, prof_options);
 end
-% Clear the variables to save memory. Otherwise, on GitHub Actions, the memory may be exhausted and
-% cause the runners to shut down.
+
+% Clear variables to release the memory associated with them. This is important if memory is
+% limited, e.g., when we run the tests on GitHub Actions with GitHub-hosted runners. Without doing
+% this, the hosted runners may shut down due to memory exhaustion, as it happened on 20250731 with
+% MATLAB R2025a.
 clear('frec', 'fmin', 'pdim', 'plist');
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -155,10 +158,11 @@
 set(gcf,'position',[0, 0, 4600, 920]);
 saveas(hfig, epsname, 'epsc2');
 
-% Close all figures. Closing figures can release memory associated with them, which is important
-% when we run the tests on GitHub Actions with GitHub-hosted runners Without doing this, the hosted
-% runners may shut down due to memory exhaustion, as it happened on 20250731 with MATLAB R2025a.
-close all;
+% Close the figure to release the memory associated with it. This is important if memory is limited,
+% e.g., when we run the tests on GitHub Actions with GitHub-hosted runners. Without doing this, the
+% hosted runners may shut down due to memory exhaustion, as it happened on 20250731 with MATLAB
+% R2025a.
+close(hfig);
 
 % Try converting the eps to pdf.
 try

matlab/tests/private/perfprof.m

@@ -99,6 +99,11 @@
     end
 end
 
+% Clear variables to release the memory associated with them. This is important if memory is
+% limited, e.g., when we run the tests on GitHub Actions with GitHub-hosted runners. Without doing
+% this, the hosted runners may shut down due to memory exhaustion, as it happened on 20250731 with
+% MATLAB R2025a.
+clear('frec', 'fmin');
 
 % pp{is, ir} is the performance profile of the is-th solver during the ir-th run.
 pp = cell(ns, nr);
@@ -147,6 +152,12 @@
     end
 end
 
+% Clear variables to release the memory associated with them. This is important if memory is
+% limited, e.g., when we run the tests on GitHub Actions with GitHub-hosted runners. Without doing
+% this, the hosted runners may shut down due to memory exhaustion, as it happened on 20250731 with
+% MATLAB R2025a.
+clear('T');
+
 % For each solver, we average the performance profiles across the random runs. The resultant profile
 % for the is-th solver is recorded in perf_prof{is}.
 perf_prof = cell(1, ns);
@@ -233,6 +244,12 @@
 epsname = fullfile(options.outdir, strcat(figname,'.eps'));
 saveas(hfig, epsname, 'epsc2');
 
+% Close the figure to release the memory associated with it. This is important if memory is limited,
+% e.g., when we run the tests on GitHub Actions with GitHub-hosted runners. Without doing this, the
+% hosted runners may shut down due to memory exhaustion, as it happened on 20250731 with MATLAB
+% R2025a.
+close(hfig);
+
 % Try converting the eps to pdf.
 try
     system(['epstopdf ',epsname]);