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Output debug memory stats in a nice table

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This commit is contained in:
Maxime Coste 2020-05-19 17:16:37 +10:00
parent 5933ab1e78
commit af175d2e7e
3 changed files with 27 additions and 6 deletions
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20
src/commands.cc
View File

@ -1397,17 +1397,25 @@ const CommandDesc debug_cmd = {
{
auto total = 0;
write_to_debug_buffer("Memory usage:");
const ColumnCount column_size = 13;
write_to_debug_buffer(format("{} │{} │{} │{} ",
left_pad("domain", column_size),
left_pad("bytes", column_size),
left_pad("active allocs", column_size),
left_pad("total allocs", column_size)));
write_to_debug_buffer(format("{0}┼{0}┼{0}┼{0}", String(Codepoint{0x2500}, column_size + 1)));
for (int domain = 0; domain < (int)MemoryDomain::Count; ++domain)
{
auto& stats = memory_stats[domain];
total += stats.allocated_bytes;
write_to_debug_buffer(
format(" {}: {} bytes, {} alloc active, {} alloc total",
domain_name((MemoryDomain)domain),
stats.allocated_bytes,
stats.allocation_count,
stats.total_allocation_count));
write_to_debug_buffer(format("{} │{} │{} │{} ",
left_pad(domain_name((MemoryDomain)domain), column_size),
left_pad(to_string(stats.allocated_bytes), column_size),
left_pad(to_string(stats.allocation_count), column_size),
left_pad(to_string(stats.total_allocation_count), column_size)));
}
write_to_debug_buffer({});
write_to_debug_buffer(format(" Total: {}", total));
#if defined(__GLIBC__) || defined(__CYGWIN__)
write_to_debug_buffer(format(" Malloced: {}", mallinfo().uordblks));

10
src/string_utils.cc
View File

@ -111,6 +111,16 @@ String replace(StringView str, StringView substr, StringView replacement)
return res;
}
String left_pad(StringView str, ColumnCount size, Codepoint c)
{
return String(c, std::max(0_col, size - str.column_length())) + str.substr(0, size);
}
String right_pad(StringView str, ColumnCount size, Codepoint c)
{
return str.substr(0, size) + String(c, std::max(0_col, size - str.column_length()));
}
Optional<int> str_to_int_ifp(StringView str)
{
bool negative = not str.empty() and str[0] == '-';

3
src/string_utils.hh
View File

@ -26,6 +26,9 @@ String indent(StringView str, StringView indent = " ");
String replace(StringView str, StringView substr, StringView replacement);
String left_pad(StringView str, ColumnCount size, Codepoint c = ' ');
String right_pad(StringView str, ColumnCount size, Codepoint c = ' ');
template<typename Container>
String join(const Container& container, char joiner, bool esc_joiner = true)
{