AwesomO: Created page with "Drafting: ==Memory usage== In FreeBSD, the alternative to the Linux command '''free -m''' is the '''sysctl''' and '''top''' commands. The free -m command in Linux displays memory usage in megabytes. To obtain similar information in FreeBSD, you can use the following methods: ===Using sysctl=== The sysctl command can be used to display memory usage information. Run the following command to get the memory usage in bytes: `sysctl hw.physmem hw.pagesize vm.stats.vm..."`


2023-05-05T14:49:08Z
Created page with "Drafting:  ==Memory usage==  In FreeBSD, the alternative to the Linux command '''free -m''' is the '''sysctl''' and '''top''' commands. The free -m command in Linux displays memory usage in megabytes. To obtain similar information in FreeBSD, you can use the following methods:  ===Using sysctl===  The sysctl command can be used to display memory usage information. Run the following command to get the memory usage in bytes:  <code>sysctl hw.physmem hw.pagesize vm.stats.vm..."
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==Memory usage==



In FreeBSD, the alternative to the Linux command '''free -m''' is the '''sysctl''' and '''top''' commands. The free -m command in Linux displays memory usage in megabytes. To obtain similar information in FreeBSD, you can use the following methods:



===Using sysctl===



The sysctl command can be used to display memory usage information. Run the following command to get the memory usage in bytes:



<code>sysctl hw.physmem hw.pagesize vm.stats.vm.v_free_count vm.stats.vm.v_inactive_count vm.stats.vm.v_cache_count</code>



To display memory usage in a more human-readable format (like megabytes), you can use the following script:



<pre>

#!/bin/sh



physmem=`sysctl -n hw.physmem`

pagesize=`sysctl -n hw.pagesize`

free_count=`sysctl -n vm.stats.vm.v_free_count`

inactive_count=`sysctl -n vm.stats.vm.v_inactive_count`

cache_count=`sysctl -n vm.stats.vm.v_cache_count`



total_mem=$(( $physmem / 1024 / 1024 ))

free_mem=$(( ($free_count + $inactive_count + $cache_count) * $pagesize / 1024 / 1024 ))



echo "Total memory: ${total_mem}MB"

echo "Free memory: ${free_mem}MB"

</pre>



Save the script to a file, make it executable with chmod +x script_name, and run it to display memory usage in megabytes.



===Using top===



The top command also provides memory usage information. Run the following command:



<code>top</code>



In the top output, you'll find memory usage information under the "Memory" section. It will display "Active", "Inact", "Laundry", "Wired", "Buf", "Free", and other memory-related values.



'''top''' will also display your '''swap space'''



==CPU==



===Finding CPU info===

On FreeBSD, you can use the '''sysctl''' command to obtain information about your CPU. Here's how you can find your CPU details:



:    Open a terminal window on your FreeBSD system.



:*    Type the following command and press Enter:



<code>sysctl hw.model</code>



This command will display the model name of your CPU.



To obtain more detailed information about your CPU, type the following command and press Enter:



<code>sysctl hw.machine_arch</code>



This command will display the architecture of your CPU (e.g., amd64, i386, etc.).



You can also use the dmesg command to obtain information about your CPU. Type the following command and press Enter:



<code>dmesg | grep CPU:</code>



:*    This command will display information about your CPU, including the model name, clock speed, and number of cores.



In addition to these commands, you can also use third-party system information tools like '''lshw''' and '''hwinfo''' to obtain detailed information about your CPU and other hardware components on your FreeBSD system.

FreeBSD 13.2: Monitoring and Managing System Resources - Revision history