JDevlieghere updated this revision to Diff 402104.
JDevlieghere added a comment.
"memory": {
"strings": {
"bytesTotal": 3145728,
"bytesUnused": 1088812,
"bytesUsed": 2056916
}
},
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D117914/new/
https://reviews.llvm.org/D117914
Files:
lldb/include/lldb/Target/Statistics.h
lldb/include/lldb/Utility/ConstString.h
lldb/source/Target/Statistics.cpp
lldb/source/Utility/ConstString.cpp
lldb/test/API/commands/statistics/basic/TestStats.py
Index: lldb/test/API/commands/statistics/basic/TestStats.py
===================================================================
--- lldb/test/API/commands/statistics/basic/TestStats.py
+++ lldb/test/API/commands/statistics/basic/TestStats.py
@@ -135,6 +135,7 @@
(lldb) statistics dump
{
+ "memory" : {...},
"modules" : [...],
"targets" : [
{
@@ -160,6 +161,7 @@
target = self.createTestTarget()
debug_stats = self.get_stats()
debug_stat_keys = [
+ 'memory',
'modules',
'targets',
'totalSymbolTableParseTime',
@@ -197,6 +199,7 @@
(lldb) statistics dump
{
+ "memory" : {...},
"modules" : [...],
"targets" : [
{
@@ -227,6 +230,7 @@
lldb.SBFileSpec("main.c"))
debug_stats = self.get_stats()
debug_stat_keys = [
+ 'memory',
'modules',
'targets',
'totalSymbolTableParseTime',
@@ -254,6 +258,44 @@
self.assertGreater(stats['launchOrAttachTime'], 0.0)
self.assertGreater(stats['targetCreateTime'], 0.0)
+ def test_memory(self):
+ """
+ Test "statistics dump" and the memory information.
+ """
+ exe = self.getBuildArtifact("a.out")
+ target = self.createTestTarget(file_path=exe)
+ debug_stats = self.get_stats()
+ debug_stat_keys = [
+ 'memory',
+ 'modules',
+ 'targets',
+ 'totalSymbolTableParseTime',
+ 'totalSymbolTableIndexTime',
+ 'totalSymbolTablesLoadedFromCache',
+ 'totalSymbolTablesSavedToCache',
+ 'totalDebugInfoParseTime',
+ 'totalDebugInfoIndexTime',
+ 'totalDebugInfoIndexLoadedFromCache',
+ 'totalDebugInfoIndexSavedToCache',
+ 'totalDebugInfoByteSize'
+ ]
+ self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
+
+ memory = debug_stats['memory']
+ memory_keys= [
+ 'strings',
+ ]
+ self.verify_keys(memory, '"memory"', memory_keys, None)
+
+ strings = memory['strings']
+ strings_keys= [
+ 'bytesTotal',
+ 'bytesUsed',
+ 'bytesUnused',
+ ]
+ self.verify_keys(strings, '"strings"', strings_keys, None)
+
+
def find_module_in_metrics(self, path, stats):
modules = stats['modules']
for module in modules:
@@ -269,6 +311,7 @@
target = self.createTestTarget(file_path=exe)
debug_stats = self.get_stats()
debug_stat_keys = [
+ 'memory',
'modules',
'targets',
'totalSymbolTableParseTime',
@@ -312,6 +355,7 @@
Output expected to be something like:
{
+ "memory" : {...},
"modules" : [...],
"targets" : [
{
@@ -355,6 +399,7 @@
self.runCmd("b a_function")
debug_stats = self.get_stats()
debug_stat_keys = [
+ 'memory',
'modules',
'targets',
'totalSymbolTableParseTime',
Index: lldb/source/Utility/ConstString.cpp
===================================================================
--- lldb/source/Utility/ConstString.cpp
+++ lldb/source/Utility/ConstString.cpp
@@ -171,6 +171,17 @@
return mem_size;
}
+ ConstString::MemoryStats GetMemoryStats() const {
+ ConstString::MemoryStats stats;
+ for (const auto &pool : m_string_pools) {
+ llvm::sys::SmartScopedReader<false> rlock(pool.m_mutex);
+ const Allocator &alloc = pool.m_string_map.getAllocator();
+ stats.bytes_total += alloc.getTotalMemory();
+ stats.bytes_used += alloc.getBytesAllocated();
+ }
+ return stats;
+ }
+
protected:
uint8_t hash(const llvm::StringRef &s) const {
uint32_t h = llvm::djbHash(s);
@@ -332,6 +343,10 @@
return StringPool().MemorySize();
}
+ConstString::MemoryStats ConstString::GetMemoryStats() {
+ return StringPool().GetMemoryStats();
+}
+
void llvm::format_provider<ConstString>::format(const ConstString &CS,
llvm::raw_ostream &OS,
llvm::StringRef Options) {
Index: lldb/source/Target/Statistics.cpp
===================================================================
--- lldb/source/Target/Statistics.cpp
+++ lldb/source/Target/Statistics.cpp
@@ -65,6 +65,14 @@
return module;
}
+llvm::json::Value ConstStringStats::ToJSON() const {
+ json::Object obj;
+ obj.try_emplace<int64_t>("bytesTotal", stats.GetBytesTotal());
+ obj.try_emplace<int64_t>("bytesUsed", stats.GetBytesUsed());
+ obj.try_emplace<int64_t>("bytesUnused", stats.GetBytesUnused());
+ return obj;
+}
+
json::Value TargetStats::ToJSON(Target &target) {
CollectStats(target);
@@ -212,9 +220,15 @@
json_modules.emplace_back(module_stat.ToJSON());
}
+ ConstStringStats const_string_stats;
+ json::Object json_memory{
+ {"strings", const_string_stats.ToJSON()},
+ };
+
json::Object global_stats{
{"targets", std::move(json_targets)},
{"modules", std::move(json_modules)},
+ {"memory", std::move(json_memory)},
{"totalSymbolTableParseTime", symtab_parse_time},
{"totalSymbolTableIndexTime", symtab_index_time},
{"totalSymbolTablesLoadedFromCache", symtabs_loaded},
Index: lldb/include/lldb/Utility/ConstString.h
===================================================================
--- lldb/include/lldb/Utility/ConstString.h
+++ lldb/include/lldb/Utility/ConstString.h
@@ -408,6 +408,16 @@
/// in memory.
static size_t StaticMemorySize();
+ struct MemoryStats {
+ size_t GetBytesTotal() const { return bytes_total; }
+ size_t GetBytesUsed() const { return bytes_used; }
+ size_t GetBytesUnused() const { return bytes_total - bytes_used; }
+ size_t bytes_total = 0;
+ size_t bytes_used = 0;
+ };
+
+ static MemoryStats GetMemoryStats();
+
protected:
template <typename T, typename Enable> friend struct ::llvm::DenseMapInfo;
/// Only used by DenseMapInfo.
Index: lldb/include/lldb/Target/Statistics.h
===================================================================
--- lldb/include/lldb/Target/Statistics.h
+++ lldb/include/lldb/Target/Statistics.h
@@ -9,6 +9,7 @@
#ifndef LLDB_TARGET_STATISTICS_H
#define LLDB_TARGET_STATISTICS_H
+#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/Stream.h"
#include "lldb/lldb-forward.h"
#include "llvm/Support/JSON.h"
@@ -110,6 +111,11 @@
bool debug_info_index_saved_to_cache = false;
};
+struct ConstStringStats {
+ llvm::json::Value ToJSON() const;
+ ConstString::MemoryStats stats = ConstString::GetMemoryStats();
+};
+
/// A class that represents statistics for a since lldb_private::Target.
class TargetStats {
public:
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