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trace2: report peak memory usage of the process

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Teach Windows version of git to report peak memory usage
during exit() processing.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Hostetler
2019-04-15 13:39:48 -07:00
committed by Junio C Hamano
parent bce9db6de9
commit 26c6f251d7
4 changed files with 60 additions and 8 deletions
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50
compat/win32/trace2_win32_process_info.c
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@ -1,5 +1,6 @@
#include "../../cache.h"
#include "../../json-writer.h"
#include "lazyload.h"
#include <Psapi.h>
#include <tlHelp32.h>
@ -137,11 +138,54 @@ static void get_is_being_debugged(void)
"windows/debugger_present", 1);
}
void trace2_collect_process_info(void)
/*
* Emit JSON data with the peak memory usage of the current process.
*/
static void get_peak_memory_info(void)
{
DECLARE_PROC_ADDR(psapi.dll, BOOL, GetProcessMemoryInfo, HANDLE,
PPROCESS_MEMORY_COUNTERS, DWORD);
if (INIT_PROC_ADDR(GetProcessMemoryInfo)) {
PROCESS_MEMORY_COUNTERS pmc;
if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc,
sizeof(pmc))) {
struct json_writer jw = JSON_WRITER_INIT;
jw_object_begin(&jw, 0);
#define KV(kv) #kv, (intmax_t)pmc.kv
jw_object_intmax(&jw, KV(PageFaultCount));
jw_object_intmax(&jw, KV(PeakWorkingSetSize));
jw_object_intmax(&jw, KV(PeakPagefileUsage));
jw_end(&jw);
trace2_data_json("process", the_repository,
"windows/memory", &jw);
jw_release(&jw);
}
}
}
void trace2_collect_process_info(enum trace2_process_info_reason reason)
{
if (!trace2_is_enabled())
return;
get_is_being_debugged();
get_ancestry();
switch (reason) {
case TRACE2_PROCESS_INFO_STARTUP:
get_is_being_debugged();
get_ancestry();
return;
case TRACE2_PROCESS_INFO_EXIT:
get_peak_memory_info();
return;
default:
BUG("trace2_collect_process_info: unknown reason '%d'", reason);
}
}