Simplify flamegraph script into a single one.

Author: dsocolobsky

.github/scripts/flamegraph_reth.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+# This script sends 1000 transactions to a test account, per defined private key
+# then polls the account balance until the expected balance has been reached
+# and then kills the process. It also measures the elapsed time of the test and
+# outputs it to Github Action's outputs.
+
 iterations=1000
 value=10000000
 account=0x33c6b73432B3aeA0C1725E415CC40D04908B85fd
@@ -17,9 +22,9 @@ end_time=$(date +%s)
 elapsed_time=$((end_time - start_time))
 minutes=$((elapsed_time / 60))
 seconds=$((elapsed_time % 60))
-echo "Balance of $output reached in $minutes min $seconds s, killing process ethrex"
+echo "Balance of $output reached in $minutes min $seconds s, killing process"
 
-sudo pkill ethrex && while pgrep -l "cargo-flamegraph"; do echo "waiting for reth to exit... "; sleep 1;done;
+sudo pkill "$PROGRAM" && while pgrep -l "cargo-flamegraph"; do echo "waiting for $PROGRAM to exit... "; sleep 1;done;
 
 # We need this for the following job, to add to the static page
 echo "time=$minutes minutes $seconds seconds" >> "$GITHUB_OUTPUT"

.github/scripts/flamegraph.sh renamed to .github/scripts/flamegraph_watcher.sh

@@ -20,6 +20,8 @@ jobs:
   flamegraph-ethrex:
     name: Generate Flamegraph for Ethrex
     runs-on: ubuntu-latest
+    env:
+      PROGRAM: ethrex
     outputs:
       time: ${{steps.generate-flamegraph-ethrex.outputs.time}}
     steps:
@@ -65,7 +67,7 @@ jobs:
           echo "waiting to execute load test..."
           sleep 30 &&
           echo "executing load test..."
-          bash .github/scripts/flamegraph.sh &&
+          bash /home/runner/work/ethrex/ethrex/.github/scripts/flamegraph_watcher.sh &&
           echo "Load test finished"
 
       - name: Generate SVG
@@ -84,6 +86,8 @@ jobs:
   flamegraph-reth:
     name: Generate Flamegraph for Reth
     runs-on: ubuntu-latest
+    env:
+      PROGRAM: reth
     outputs:
       time: ${{steps.generate-flamegraph-reth.outputs.time}}
     steps:
@@ -135,7 +139,7 @@ jobs:
           --txpool.basefee-max-size 1000000000000 --txpool.queued-max-count 1000000000 &
           echo "waiting to execute load test..."
           sleep 180 &&
-          bash /home/runner/work/ethrex/ethrex/.github/scripts/flamegraph_reth.sh &&
+          bash /home/runner/work/ethrex/ethrex/.github/scripts/flamegraph_watcher.sh &&
           echo "Load test finished"
 
       - name: Generate SVG