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verilator_gantt: Add eval count to report

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This commit is contained in:
Wilson Snyder 2021-09-24 08:25:40 -04:00
parent 204804ae52
commit fd4595d6b4
3 changed files with 7 additions and 26 deletions
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2
bin/verilator_gantt
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@ -174,6 +174,8 @@ def report():
ncpus = len(Global['cpus'])
print(" Total cpus used = %d" % ncpus)
print(" Total yields = %d" % int(Global['stats']['yields']))
print(" Total evals = %d" % len(Evals))
print(" Total eval loops = %d" % len(EvalLoops))
print(" Total eval time = %d rdtsc ticks" %
Global['measured_last_end'])
print(" Longest mtask time = %d rdtsc ticks" % long_mtask_time)

29
test_regress/t/t_gantt.pl
View File

@ -44,32 +44,9 @@ run(cmd => ["$ENV{VERILATOR_ROOT}/bin/verilator_gantt",
verilator_run => 1,
);
# We should have three lines of gantt chart, each with
# an even number of mtask-bars (eg "[123--]")
my $gantt_line_ct = 0;
my $global_mtask_ct = 0;
{
my $fh = IO::File->new("<$Self->{obj_dir}/gantt.log")
or error("$! $Self->{obj_dir}/gantt.log");
while (my $line = ($fh && $fh->getline)) {
if ($line !~ m/^ t:/) { next; }
$gantt_line_ct++;
my $this_thread_mtask_ct = 0;
my @mtasks = split(/\[/, $line);
shift @mtasks; # throw the '>> ' away
foreach my $mtask (@mtasks) {
# Format of each mtask is "[123--]" where the hyphens
# number or ] may or may not appear; it depends on exact timing.
$this_thread_mtask_ct++;
$global_mtask_ct++;
}
if ($this_thread_mtask_ct % 2 != 0) { error("odd number of mtasks found"); }
}
}
if ($gantt_line_ct != 2) { error("wrong number of gantt lines"); }
if ($global_mtask_ct == 0) { error("wrong number of mtasks, should be > 0"); }
print "Found $gantt_line_ct lines of gantt data with $global_mtask_ct mtasks\n"
if $Self->{verbose};
file_grep("$Self->{obj_dir}/gantt.log", qr/Total threads += 2/i);
file_grep("$Self->{obj_dir}/gantt.log", qr/Total mtasks += 7/i);
file_grep("$Self->{obj_dir}/gantt.log", qr/Total evals += 2/i);
# Diff to itself, just to check parsing
vcd_identical("$Self->{obj_dir}/profile_threads.vcd", "$Self->{obj_dir}/profile_threads.vcd");

2
test_regress/t/t_gantt_io.out
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@ -17,6 +17,8 @@ Analysis:
Total mtasks = 7
Total cpus used = 2
Total yields = 0
Total evals = 2
Total eval loops = 2
Total eval time = 21875 rdtsc ticks
Longest mtask time = 1190 rdtsc ticks
All-thread mtask time = 5495 rdtsc ticks