Redis LP Techreview - updates to instance install and benchmarking.

Author: DougAnsonAustinTX

content/learning-paths/servers-and-cloud-computing/redis-data-searching/benchmarking.md

@@ -13,10 +13,17 @@ The `redis-benchmark` tool is an official performance testing utility for Redis.
 ### Prerequisites
 Ensure Redis server is running and accessible:
 
+```console
+redis-cli ping
+```
+
+If you do not see a "PONG" response, please start redis:
+
 ```console
 redis-server &
 redis-cli ping
 ```
+
 ### Benchmark SET (Write Performance)
 The `SET` benchmark helps validate Redis’s ability to handle high insertion rates efficiently on Arm-based servers.
 
@@ -145,26 +152,14 @@ Summary:
 - **p99:** 99th percentile — shows near worst-case latency, key for reliability analysis.
 - **max:** Slowest observed response time (worst case).
 
-### Benchmark summary on x86_64
-To compare the benchmark results, the following results were collected by running the same benchmark on a `x86 - c4-standard-4` (4 vCPUs, 15 GB Memory) x86_64 VM in GCP, running SUSE:
-
-| Operation | Total Requests | Concurrent Clients | Avg Latency (ms) | Min (ms) | P50 (ms) | P95 (ms) | P99 (ms) | Max (ms) | Throughput (req/sec) | Description |
-|------------|----------------|--------------------|------------------|-----------|-----------|-----------|-----------|-----------|-----------------------|--------------|
-| SET        | 100,000        | 50                 | 0.176            | 0.048     | 0.175     | 0.191     | 0.327     | 0.679     | 146,842.88            | Measures Redis write performance using SET command |
-| GET        | 100,000        | 50                 | 0.184            | 0.056     | 0.183     | 0.207     | 0.311     | 1.127     | 139,860.14            | Measures Redis read performance using GET command |
-
-
-### Benchmark summary on Arm64
-Results from the earlier run on the `c4a-standard-4` (4 vCPU, 16 GB memory) Arm64 VM in GCP (SUSE):
+### Benchmark summary
+Results from the earlier run on the `c4a-standard-4` (4 vCPU, 16 GB memory) Arm64 VM in GCP (SUSE Enterprise Server):
 
 | Operation | Total Requests | Concurrent Clients | Avg Latency (ms) | Min (ms) | P50 (ms) | P95 (ms) | P99 (ms) | Max (ms) | Throughput (req/sec) | Description |
 |------------|----------------|--------------------|------------------|-----------|-----------|-----------|-----------|-----------|-----------------------|--------------|
 | SET        | 100,000        | 50                 | 0.170            | 0.056     | 0.167     | 0.183     | 0.191     | 1.095     | 149,700.61            | Measures Redis write performance using SET command |
 | GET        | 100,000        | 50                 | 0.169            | 0.048     | 0.167     | 0.183     | 0.191     | 0.807     | 150,375.94            | Measures Redis read performance using GET command |
 
-
- ### Redis benchmarking comparison on Arm64 and x86_64
-
  - **High Efficiency:** Redis achieved over **150K ops/sec** on both read and write workloads, showcasing strong throughput on **Arm64 (C4A)** architecture.
 - **Low Latency:** Average latency remained around **0.17 ms**, demonstrating consistent response times under concurrency.
 - **Balanced Performance:** Both **SET** and **GET** operations showed nearly identical performance, indicating excellent CPU and memory optimization on **Arm64**.

content/learning-paths/servers-and-cloud-computing/redis-data-searching/images/gcp-shell.png

@@ -26,6 +26,18 @@ To create a virtual machine based on the C4A instance type:
 
    ![Create a Google Axion C4A Arm virtual machine in the Google Cloud Console with c4a-standard-4 selected alt-text#center](images/gcp-vm.png "Creating a Google Axion C4A Arm virtual machine in Google Cloud Console")
 
-- Under **OS and Storage**, select **Change**, then choose an Arm64-based OS image. For this Learning Path, use **SUSE Linux Enterprise Server**. Pick the preferred version for your Operating System. Ensure you select the **Arm image** variant. Click **Select**.
+
+- Under **OS and Storage**, select **Change**, then choose an Arm64-based OS image. For this Learning Path, use **SUSE Linux Enterprise Server**. 
+- If using use **SUSE Linux Enterprise Server**. Select "Pay As You Go" for the license type. 
+- Once appropriately selected, please Click **Select**. 
 - Under **Networking**, enable **Allow HTTP traffic**.
 - Click **Create** to launch the instance.
+- Once created, you should see a "SSH" option to the right in your list of VM instances.  Click on this to launch a SSH shell into your VM instance:
+
+![Invoke a SSH session via your browser alt-text#center](images/gcp-ssh.png "Invoke a SSH session into your running VM instance")
+
+- A window from your browser should come up and you should now see a shell into your VM instance:
+
+![Terminal Shell in your VM instance alt-text#center](images/gcp-shell.png "Terminal shell in your VM instance")
+
+Next, let's install redis!