¿Cómo uso las sondas HotSpot DTrace en SmartOS?
En Mac OS X, puedo encontrar las sondas HotSpot de ejecutar programas Java ejecutando:
cody.mello@ashur ~ (1) % sudo dtrace -ln 'hotspot*:::'
Password:
Invalid connection: com.apple.coresymbolicationd
ID PROVIDER MODULE FUNCTION NAME
165084 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-clinit
165085 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-concurrent
165086 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-end
165087 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-erroneous
165088 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-error
165089 hotspot46 libjvm.dylib _ZN13instanceKlass15initialize_implE19instanceKlassHandleP6Thread [instanceKlass::initialize_impl(instanceKlassHandle, Thread*)] class-initialization-recursive
...
Pero si creo un programa Java simple y lo ejecuto en SmartOS:
cody@101901c9-6d66-ea32-fe42-f1fbebd4bf99 ~ % cat Loop.java
class Loop {
public static void main(String[] args) throws InterruptedException {
while (true) {
Thread.sleep(5000);
}
}
}
cody@101901c9-6d66-ea32-fe42-f1fbebd4bf99 ~ % javac Loop.java
cody@101901c9-6d66-ea32-fe42-f1fbebd4bf99 ~ % java Loop
No puedo encontrar ninguna sonda:
cody@101901c9-6d66-ea32-fe42-f1fbebd4bf99 ~ (255) % pfexec dtrace -ln 'hotspot*:::'
ID PROVIDER MODULE FUNCTION NAME
dtrace: failed to match hotspot*:::: No probe matches description
¿Hay algo especial que deba hacer para verlos?