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8299858: [Metrics] Swap memory limit reported incorrectly when too large

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Reviewed-by: stuefe
This commit is contained in:
Severin Gehwolf 2023-01-26 14:50:46 +00:00
parent 28545dcf2b
commit 64ddf9536f
3 changed files with 67 additions and 3 deletions
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13
src/java.base/linux/native/libjava/CgroupMetrics.c
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@ -23,6 +23,7 @@
* questions.
*/
#include <unistd.h>
#include <sys/sysinfo.h>
#include "jni.h"
#include "jvm.h"
@ -43,3 +44,15 @@ Java_jdk_internal_platform_CgroupMetrics_getTotalMemorySize0
jlong page_size = sysconf(_SC_PAGESIZE);
return pages * page_size;
}
JNIEXPORT jlong JNICALL
Java_jdk_internal_platform_CgroupMetrics_getTotalSwapSize0
(JNIEnv *env, jclass ignored)
{
struct sysinfo si;
int retval = sysinfo(&si);
if (retval < 0) {
return 0; // syinfo failed, treat as no swap
}
return (jlong)si.totalswap;
}