archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 14:54:52 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6935224: Adding new DTrace probes to work with Palantir

Browse source 
Adding probes related to thread scheduling and class initialization

Reviewed-by: kamg, never
This commit is contained in:
Frederic Parain 2010-03-17 11:01:05 +01:00
parent d713517a21
commit 2450ae35a1
9 changed files with 134 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

9
hotspot/src/share/vm/prims/jvm.cpp
View file

@ -26,6 +26,10 @@
#include "incls/_jvm.cpp.incl"
#include <errno.h>
HS_DTRACE_PROBE_DECL1(hotspot, thread__sleep__begin, long long);
HS_DTRACE_PROBE_DECL1(hotspot, thread__sleep__end, int);
HS_DTRACE_PROBE_DECL0(hotspot, thread__yield);
/*
NOTE about use of any ctor or function call that can trigger a safepoint/GC:
such ctors and calls MUST NOT come between an oop declaration/init and its
@ -2762,6 +2766,7 @@ JVM_END
JVM_ENTRY(void, JVM_Yield(JNIEnv *env, jclass threadClass))
JVMWrapper("JVM_Yield");
if (os::dont_yield()) return;
HS_DTRACE_PROBE0(hotspot, thread__yield);
// When ConvertYieldToSleep is off (default), this matches the classic VM use of yield.
// Critical for similar threading behaviour
if (ConvertYieldToSleep) {
@ -2787,6 +2792,8 @@ JVM_ENTRY(void, JVM_Sleep(JNIEnv* env, jclass threadClass, jlong millis))
// And set new thread state to SLEEPING.
JavaThreadSleepState jtss(thread);
HS_DTRACE_PROBE1(hotspot, thread__sleep__begin, millis);
if (millis == 0) {
// When ConvertSleepToYield is on, this matches the classic VM implementation of
// JVM_Sleep. Critical for similar threading behaviour (Win32)
@ -2807,6 +2814,7 @@ JVM_ENTRY(void, JVM_Sleep(JNIEnv* env, jclass threadClass, jlong millis))
// An asynchronous exception (e.g., ThreadDeathException) could have been thrown on
// us while we were sleeping. We do not overwrite those.
if (!HAS_PENDING_EXCEPTION) {
HS_DTRACE_PROBE1(hotspot, thread__sleep__end,1);
// TODO-FIXME: THROW_MSG returns which means we will not call set_state()
// to properly restore the thread state. That's likely wrong.
THROW_MSG(vmSymbols::java_lang_InterruptedException(), "sleep interrupted");
@ -2814,6 +2822,7 @@ JVM_ENTRY(void, JVM_Sleep(JNIEnv* env, jclass threadClass, jlong millis))
}
thread->osthread()->set_state(old_state);
}
HS_DTRACE_PROBE1(hotspot, thread__sleep__end,0);
JVM_END
JVM_ENTRY(jobject, JVM_CurrentThread(JNIEnv* env, jclass threadClass))