Ad async profiling; adjust log message and level; adjust gitignore

Author: ldematte

.gitignore

@@ -46,6 +46,7 @@ build/
 **/.local*
 .vagrant/
 /logs/
+**/target/
 
 # osx stuff
 .DS_Store

qa/vector/build.gradle

@@ -51,13 +51,27 @@ tasks.register("checkVec", JavaExec) {
   systemProperty "es.logger.out", "console"
   systemProperty "es.logger.level", "INFO"  // Change to DEBUG if needed
   systemProperty 'es.nativelibs.path', TestUtil.getTestLibraryPath(file("../../libs/native/libraries/build/platform/").toString())
-  jvmArgs '-Xms4g', '-Xmx4g', '-Djava.util.concurrent.ForkJoinPool.common.parallelism=8', '-XX:+UnlockDiagnosticVMOptions', '-XX:+DebugNonSafepoints', '-XX:+HeapDumpOnOutOfMemoryError'
+  jvmArgs '-Xms16g', '-Xmx16g', '-Djava.util.concurrent.ForkJoinPool.common.parallelism=8', '-XX:+UnlockDiagnosticVMOptions', '-XX:+DebugNonSafepoints', '-XX:+HeapDumpOnOutOfMemoryError'
   if (buildParams.getRuntimeJavaVersion().map { it.majorVersion.toInteger() }.get() >= 21) {
     jvmArgs '--add-modules=jdk.incubator.vector', '--enable-native-access=ALL-UNNAMED'
   }
   if (System.getenv("DO_PROFILING") != null) {
     jvmArgs '-XX:StartFlightRecording=dumponexit=true,maxsize=250M,filename=knn.jfr,settings=profile.jfc'
   }
+  def asyncProfilerPath = System.getProperty("asyncProfiler.path", null)
+  if (asyncProfilerPath != null) {
+    if (OS.current().equals(OS.MAC)) {
+      def asyncProfilerAgent = "${asyncProfilerPath}/lib/libasyncProfiler.dylib"
+      println "Using async-profiler agent ${asyncProfilerAgent}"
+      jvmArgs "-agentpath:${asyncProfilerAgent}=start,event=cpu,interval=10ms,file=${layout.buildDirectory.asFile.get()}/tmp/elasticsearch-0_%t_%p.jfr"
+    } else if (OS.current().equals(OS.LINUX)) {
+      def asyncProfilerAgent = "${asyncProfilerPath}/lib/libasyncProfiler.so"
+      println "Using async-profiler agent ${asyncProfilerAgent}"
+      jvmArgs "-agentpath:${asyncProfilerAgent}=start,event=cpu,interval=10ms,wall=50ms,file=${layout.buildDirectory.asFile.get()}/tmp/elasticsearch-0_%t_%p.jfr"
+    } else {
+      println "Ignoring 'asyncProfiler.path': not available on ${OS.current()}";
+    }
+  }
   if (buildParams.getIsRuntimeJavaHomeSet()) {
     executable = "${buildParams.runtimeJavaHome.get()}/bin/java" + (OS.current() == OS.WINDOWS ? '.exe' : '')
   } else {

qa/vector/src/main/java/org/elasticsearch/test/knn/KnnIndexer.java

@@ -290,7 +290,7 @@ public void run() {
             } catch (IOException ioe) {
                 throw new UncheckedIOException(ioe);
             }
-            logger.info("Index thread times: [{}] read, [{}] add doc", readTime, docAddTime);
+            logger.debug("Index thread times: [{}s] read, [{}s] add doc", readTime / 1e-9, docAddTime / 1e-9);
         }
 
         private void _run() throws IOException {