diff --git a/dist/cleanup/index.js b/dist/cleanup/index.js
index e72021e..2e958bc 100644
--- a/dist/cleanup/index.js
+++ b/dist/cleanup/index.js
@@ -81867,11 +81867,11 @@ function generateReports() {
             if (areMetricHistoriesEnabled()) {
                 const pushEvents = yield (0, utils_1.getPushEvents)(getBuildCountsForMetricHistory());
                 // Prepare data
-                //    const timestamps = []
+                const timestamps = [];
                 const shas = [];
                 //    core.info("pushEvents: " + pushEvents[0].created_at)
                 for (let i = 0; i < pushEvents.length; i++) {
-                    //    timestamps.push(pushEvents[i].created_at)
+                    timestamps.push(pushEvents[i].created_at);
                     shas.push(pushEvents[i].payload.commits[pushEvents[i].payload.commits.length - 1].sha);
                 }
                 const imageData = yield (0, utils_1.getImageData)(shas);
@@ -81880,8 +81880,8 @@ function generateReports() {
                 core.summary.addRaw(mermaidDiagramm);
                 yield core.summary.write();
                 // Extract data for plotting
-                //     const commitDates = formatTimestamps(timestamps)
-                //   core.info(String(commitDates))
+                const commitDates = (0, utils_1.formatTimestamps)(timestamps);
+                core.info(JSON.stringify(commitDates));
             }
             if (arePRBaseComparisonEnabled()) {
                 const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
@@ -81969,11 +81969,6 @@ gantt
 <em>Report generated by <a href="https://github.com/marketplace/actions/github-action-for-graalvm" target="_blank">setup-graalvm</a>.</em>`;
 }
 function createHistoryDiagramm(shas, metricDataList) {
-    core.info(JSON.stringify(metricDataList[0]));
-    core.info(typeof (metricDataList[0]));
-    core.info(metricDataList[0]);
-    core.info(JSON.stringify(metricDataList[0].image_details));
-    core.info(JSON.parse(metricDataList[0]).image_details.total_bytes);
     let mermaidDiagramm = `## GraalVM Native Image PR comparison
 
 #### Image Details
@@ -81988,8 +81983,8 @@ gantt
 `;
     for (let i = 0; i < metricDataList.length; i++) {
         mermaidDiagramm = mermaidDiagramm + `
-    section ${shas[i]}
-    Total ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA ? 'active' : ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
+    section ${shas[i].slice(0, 8)}...
+    ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA ? 'active, ' : ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
     
     `;
     }
@@ -82611,8 +82606,8 @@ function getPushEvents(numberOfBuilds) {
 exports.getPushEvents = getPushEvents;
 function formatTimestamps(timestamps) {
     const formattedTimestamps = [];
-    for (const date in timestamps) {
-        let commitTime = luxon_1.DateTime.fromISO(date);
+    for (let i = 0; i < timestamps.length; i++) {
+        let commitTime = luxon_1.DateTime.fromISO(timestamps[i]);
         let commitTimeUtc = commitTime.setZone('UTC');
         let commitTimeLocal = commitTimeUtc.setZone('Europe/Berlin');
         let formatter = 'dd.MM.\'HH:mm';
diff --git a/dist/main/index.js b/dist/main/index.js
index 4833bf8..0d4e537 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -81966,11 +81966,11 @@ function generateReports() {
             if (areMetricHistoriesEnabled()) {
                 const pushEvents = yield (0, utils_1.getPushEvents)(getBuildCountsForMetricHistory());
                 // Prepare data
-                //    const timestamps = []
+                const timestamps = [];
                 const shas = [];
                 //    core.info("pushEvents: " + pushEvents[0].created_at)
                 for (let i = 0; i < pushEvents.length; i++) {
-                    //    timestamps.push(pushEvents[i].created_at)
+                    timestamps.push(pushEvents[i].created_at);
                     shas.push(pushEvents[i].payload.commits[pushEvents[i].payload.commits.length - 1].sha);
                 }
                 const imageData = yield (0, utils_1.getImageData)(shas);
@@ -81979,8 +81979,8 @@ function generateReports() {
                 core.summary.addRaw(mermaidDiagramm);
                 yield core.summary.write();
                 // Extract data for plotting
-                //     const commitDates = formatTimestamps(timestamps)
-                //   core.info(String(commitDates))
+                const commitDates = (0, utils_1.formatTimestamps)(timestamps);
+                core.info(JSON.stringify(commitDates));
             }
             if (arePRBaseComparisonEnabled()) {
                 const prMetrics = JSON.parse(yield (0, utils_1.getPrBaseBranchMetrics)());
@@ -82068,11 +82068,6 @@ gantt
 <em>Report generated by <a href="https://github.com/marketplace/actions/github-action-for-graalvm" target="_blank">setup-graalvm</a>.</em>`;
 }
 function createHistoryDiagramm(shas, metricDataList) {
-    core.info(JSON.stringify(metricDataList[0]));
-    core.info(typeof (metricDataList[0]));
-    core.info(metricDataList[0]);
-    core.info(JSON.stringify(metricDataList[0].image_details));
-    core.info(JSON.parse(metricDataList[0]).image_details.total_bytes);
     let mermaidDiagramm = `## GraalVM Native Image PR comparison
 
 #### Image Details
@@ -82087,8 +82082,8 @@ gantt
 `;
     for (let i = 0; i < metricDataList.length; i++) {
         mermaidDiagramm = mermaidDiagramm + `
-    section ${shas[i]}
-    Total ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA ? 'active' : ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
+    section ${shas[i].slice(0, 8)}...
+    ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA ? 'active, ' : ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
     
     `;
     }
@@ -83687,8 +83682,8 @@ function getPushEvents(numberOfBuilds) {
 exports.getPushEvents = getPushEvents;
 function formatTimestamps(timestamps) {
     const formattedTimestamps = [];
-    for (const date in timestamps) {
-        let commitTime = luxon_1.DateTime.fromISO(date);
+    for (let i = 0; i < timestamps.length; i++) {
+        let commitTime = luxon_1.DateTime.fromISO(timestamps[i]);
         let commitTimeUtc = commitTime.setZone('UTC');
         let commitTimeLocal = commitTimeUtc.setZone('Europe/Berlin');
         let formatter = 'dd.MM.\'HH:mm';
diff --git a/src/features/reports.ts b/src/features/reports.ts
index c37425c..db287a7 100644
--- a/src/features/reports.ts
+++ b/src/features/reports.ts
@@ -152,11 +152,11 @@ export async function generateReports(): Promise<void> {
     if (areMetricHistoriesEnabled()) {
       const pushEvents = await getPushEvents(getBuildCountsForMetricHistory())
       // Prepare data
-  //    const timestamps = []
+      const timestamps = []
       const shas = []
   //    core.info("pushEvents: " + pushEvents[0].created_at)
       for (let i=0; i < pushEvents.length; i++) {
-    //    timestamps.push(pushEvents[i].created_at)
+        timestamps.push(pushEvents[i].created_at)
         shas.push(pushEvents[i].payload.commits[pushEvents[i].payload.commits.length - 1].sha)
 
       }
@@ -167,8 +167,8 @@ export async function generateReports(): Promise<void> {
       await core.summary.write()
 
       // Extract data for plotting
- //     const commitDates = formatTimestamps(timestamps)
-   //   core.info(String(commitDates))
+      const commitDates = formatTimestamps(timestamps)
+      core.info(JSON.stringify(commitDates))
 
 
     }
@@ -272,13 +272,6 @@ gantt
 }
 
 function createHistoryDiagramm(shas: String[], metricDataList: any[]): string {
-
-  core.info(JSON.stringify(metricDataList[0]))
-  core.info(typeof(metricDataList[0]))
-  core.info(metricDataList[0])
-  core.info(JSON.stringify(metricDataList[0].image_details))
-  core.info(JSON.parse(metricDataList[0]).image_details.total_bytes)
-
   let mermaidDiagramm = `## GraalVM Native Image PR comparison
 
 #### Image Details
@@ -293,8 +286,8 @@ gantt
 `
   for (let i=0; i<metricDataList.length; i++) {
     mermaidDiagramm = mermaidDiagramm + `
-    section ${shas[i]}
-    Total ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA? 'active': ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
+    section ${shas[i].slice(0, 8)}...
+    ${bytesToHuman(JSON.parse(metricDataList[i]).image_details.total_bytes)}: ${shas[i] === process.env.GITHUB_SHA? 'active, ': ''} 0, ${JSON.parse(metricDataList[i]).image_details.total_bytes}
     
     `
   }
diff --git a/src/utils.ts b/src/utils.ts
index dd845f4..81e072b 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -390,8 +390,8 @@ export async function getPushEvents(numberOfBuilds: number): Promise<any[]> {
 
 export function formatTimestamps(timestamps: string[]) {
     const formattedTimestamps = []
-    for (const date in timestamps) {
-        let commitTime = DateTime.fromISO(date);
+    for (let i=0; i<timestamps.length; i++) {
+        let commitTime = DateTime.fromISO(timestamps[i]);
         let commitTimeUtc = commitTime.setZone('UTC');
         let commitTimeLocal = commitTimeUtc.setZone('Europe/Berlin');
         let formatter = 'dd.MM.\'HH:mm';