content/blog/disabling-cpus-save-power.md

@@ -1,45 +0,0 @@
----
-title: "Disabling CPUs to Save Power"
-date: 2024-04-06T20:48:52-04:00
-draft: false
-tags: []
-math: false
-medium_enabled: false
----
-
-Looking for ways to reduce the power usage of my home server? This post shows a not-so-scientific look at how disabling CPUs can help save some power.
-
-I run a Dell PowerEdge R430 with an Intel Xeon E5-2643 v3 CPU. This gives me 12 physical cores, and with hyperthreading this presents itself as 24 logical cores.
-
-Given that I mostly use my server as media storage, most of those CPUs sit idle most of the time. My thought is, how much power can I save if I disable some of these unused cores?
-
-For idle workloads disabling the CPU does not result in any noticeable power savings. The power savings is significant, however, if you analyze the system under load.
-
-To conduct this experiment, I used a [Kill a Watt](https://en.wikipedia.org/wiki/Kill_A_Watt) measuring device which monitors the power usage of whatever is plugged into it.
-
-To disable a CPU in Linux, use the following command:
-
-```bash
-# Disable CPU 23
-echo 0 | sudo tee /sys/devices/system/cpu/cpu23/online > /dev/null
-```
-
-Repeat for any CPUs you want to disable. You can see which CPUs are available using `ls /sys/devices/system/cpu`. The `htop` tool will display in addition to the CPU utilization, which CPUs are offline.
-
-To get the system under load, I used the `stress` tool.
-
-```bash
-# Spin off 24 dummy tasks that max out each CPU
-stress -c 24
-```
-
-I ran the stress tool with the corresponding number of logical CPUs I had online to come up with the following table:
-
-| # Online Logical CPU | Power (Watts) |
-| -------------------- | ------------- |
-| 24                   | 360           |
-| 12                   | 295           |
-| 6                    | 194           |
-| 4                    | 173           |
-
-Cutting down to 4 logical CPUs can cut the power usage under load in half! Do note though, that this exchanges performance for power savings. If you are running a low amount of services on your home server or can wait a bit of extra time for a computation to finish, consider disabling some of your CPUs.

content/menu/_index.md

@@ -30,7 +30,6 @@ The following menu contains meals that are in rotation at my home. These are mad
 
 ## Soups
 
-- [Beef Taco](beef-taco-soup/)
 - [Pork Pozole](pork-pozole/)
 - Chicken & Gnocchi
 - {{< vegetarian >}}Broccoli Cheddar

content/menu/beef-taco-soup.md

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----
-title: "Beef Taco Soup"
-date: 2024-04-06
-hideDate: true
-draft: false
----
-
-## Ingredients
-
-- Beef
-- 1/2 yellow onion
-- 1/2 green bell pepper
-- 1/2 red bell pepper
-- 24 oz beef broth
-- 1 can diced tomatoes
-- 2 ounces cream cheese
-- 1/2 cup of heavy whipping cream
-- 1 cup cheddar cheese
-- 1 tablespoon chili powder
-- 1 tablespoon cumin
-- 2 teaspoons onion powder
-- 3 teaspoons oregano
-- 1 teaspoon garlic powder
-- 1 teapoon paprika
-- 1/2 teaspoon cayenne pepper
-
-## Recipe
-1. Cook beef
-2. Blend diced tomatoes and beef broth together.
-3. Put tomato and broth blend in pot and bring to a boil,
-then reduce heat to a simmer.
-4. Meanwhile start cooking the onion and bell peppers.
-5. Add beef, onion, bell peppers, and spices to the pot.
-6. Cook for 30 minutes
-7. Add cream cheese, heavy whipping cream, and cheddar cheese
-to the pot.
-8. Wait until everything is all melted and smooth then serve.