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dbms: human readable sizes logged in MemoryTracker. [#METR-11015]

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This commit is contained in:
Michael Kolupaev 2014-05-08 16:00:47 +04:00
parent 6232f3e9b4
commit 8ea2b0f7a7
1 changed files with 19 additions and 3 deletions
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22
dbms/src/Common/MemoryTracker.cpp
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@ -2,13 +2,29 @@
#include <Yandex/logger_useful.h>
#include <DB/Core/Exception.h>
#include <DB/IO/WriteHelpers.h>
#include <iomanip>
#include <DB/Common/MemoryTracker.h>
static std::string formatReadableSize(double size)
{
const char* units[] = {"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"};
size_t i = 0;
while (i + 1 < sizeof(units) / sizeof(units[0]) &&
fabs(size) >= 1024)
{
size /= 1024;
++i;
}
std::stringstream ss;
ss << std::fixed << std::setprecision(i) << size << units[i];
return ss.str();
}
MemoryTracker::~MemoryTracker()
{
LOG_DEBUG(&Logger::get("MemoryTracker"), "Peak memory usage for query: " << peak << " bytes.");
LOG_DEBUG(&Logger::get("MemoryTracker"), "Peak memory usage for query: " << formatReadableSize(peak) << ".");
}
void MemoryTracker::alloc(Int32 size)
@ -18,9 +34,9 @@ void MemoryTracker::alloc(Int32 size)
if (unlikely(limit && will_be > limit))
{
free(size);
throw DB::Exception("Memory limit exceeded: would use " + DB::toString(will_be) + " bytes"
throw DB::Exception("Memory limit exceeded: would use " + formatReadableSize(will_be) + ""
" (attempt to allocate chunk of " + DB::toString(size) + " bytes)"
", maximum: " + DB::toString(limit) + " bytes", DB::ErrorCodes::MEMORY_LIMIT_EXCEEDED);
", maximum: " + formatReadableSize(limit), DB::ErrorCodes::MEMORY_LIMIT_EXCEEDED);
}
if (will_be > peak)