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LibGC: Report GC times in microseconds with human-readable byte counts

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Switch the per-GC report to a precise timer and microsecond output, and
format all byte counts via human_readable_size so they read naturally
(e.g. "12.3 MiB" instead of "12923847 bytes").
This commit is contained in:
Andreas Kling 2026-05-07 20:18:39 +02:00 committed by Andreas Kling
parent c78a50c4c3
commit 93c2175fc7
1 changed files with 8 additions and 7 deletions
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15
Libraries/LibGC/Heap.cpp
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@ -14,6 +14,7 @@
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/LexicalPath.h>
#include <AK/NumberFormat.h>
#include <AK/Platform.h>
#include <AK/StackInfo.h>
#include <AK/StackUnwinder.h>
@ -337,7 +338,7 @@ void Heap::collect_garbage(CollectionType collection_type, bool print_report)
{
TemporaryChange change(m_collecting_garbage, true);
Core::ElapsedTimer collection_measurement_timer;
Core::ElapsedTimer collection_measurement_timer { Core::TimerType::Precise };
if (print_report)
collection_measurement_timer.start();
@ -833,12 +834,12 @@ void Heap::sweep_dead_cells(bool print_report, Core::ElapsedTimer const& measure
dbgln("Garbage collection report");
dbgln("=============================================");
dbgln(" Time spent: {} ms", time_spent.to_milliseconds());
dbgln(" Live cells: {} ({} bytes)", live_cells, live_cell_bytes);
dbgln(" Live external: {} bytes", live_external_bytes);
dbgln("Collected cells: {} ({} bytes)", collected_cells, collected_cell_bytes);
dbgln(" Live blocks: {} ({} bytes)", live_block_count, live_block_count * HeapBlock::BLOCK_SIZE);
dbgln(" Freed blocks: {} ({} bytes)", empty_blocks.size(), empty_blocks.size() * HeapBlock::BLOCK_SIZE);
dbgln(" Time spent: {} us", time_spent.to_microseconds());
dbgln(" Live cells: {} ({})", live_cells, human_readable_size(live_cell_bytes));
dbgln(" Live external: {}", human_readable_size(live_external_bytes));
dbgln("Collected cells: {} ({})", collected_cells, human_readable_size(collected_cell_bytes));
dbgln(" Live blocks: {} ({})", live_block_count, human_readable_size(live_block_count * HeapBlock::BLOCK_SIZE));
dbgln(" Freed blocks: {} ({})", empty_blocks.size(), human_readable_size(empty_blocks.size() * HeapBlock::BLOCK_SIZE));
dbgln("=============================================");
}