infernap12/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2026-01-28 03:58:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

8351359: OperatingSystemMXBean: values from getCpuLoad and getProcessCpuLoad are stale after 24.8 days (Windows)

Browse Source 
Reviewed-by: amenkov, sspitsyn
This commit is contained in:
Kevin Walls 2025-05-08 13:18:02 +00:00
parent ad07426fab
commit 900b3ff7ee
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/jdk.management/windows/native/libmanagement_ext/OperatingSystemImpl.c
View File

@ -50,6 +50,8 @@
#include <process.h>
#pragma warning(pop)
#include <sysinfoapi.h>
typedef unsigned __int32 juint;
typedef unsigned __int64 julong;
@ -215,10 +217,10 @@ static PdhLookupPerfNameByIndexFunc PdhLookupPerfNameByIndex_i;
*/
typedef struct {
HQUERY query;
uint64_t lastUpdate; // Last time query was updated (ticks)
uint64_t lastUpdate; // Last time query was updated (millis)
} UpdateQueryS, *UpdateQueryP;
// Min time between query updates (ticks)
// Min time between query updates (millis)
static const int MIN_UPDATE_INTERVAL = 500;
/*
@ -991,7 +993,7 @@ bindPdhFunctionPointers(HMODULE h) {
*/
static int
getPerformanceData(UpdateQueryP query, HCOUNTER c, PDH_FMT_COUNTERVALUE* value, DWORD format) {
clock_t now = clock();
uint64_t now = GetTickCount64();
/*
* Need to limit how often we update the query