Detailed tutorial on installing jemalloc in CentOS and installing wireless network card in CentOS

php editor Apple has brought you a detailed tutorial on installing jemalloc in CentOS and installing wireless network card in CentOS. In this tutorial, we will introduce step by step how to install the jemalloc memory management tool on the CentOS system and how to install the wireless network card on the CentOS system. These tutorials will provide practical guides for users using CentOS systems to help them better deal with related problems. For both developers and ordinary users, these tutorials provide concise instructions so that they can complete the relevant operations easily.

CentOS installation jemalloc

jemalloc is an efficient memory allocator that can improve the performance of the program. The following are the steps to install jemalloc on CentOS system ：

1. Open the terminal and log in to the system as the root user.

2. Use the following command to install dependent libraries:

```

yum install -y gcc gcc-c automake

3. Download jemalloc Source package:

wget -5.2.1.tar.bz2

4. Unzip the source package:

tar -xvf jemalloc-5.2.1.tar.bz2

5. Enter the decompressed directory:

cd jemalloc-5.2.1

6. Compile and install jemalloc:

./configure

make && make install

7. Configure system environment variables:

echo '/usr/local/lib' > /etc/ld.so.conf.d/local.conf

ldconfig

8. Verify whether the jemalloc installation is successful:

ldconfig -p | grep jemalloc

If there is relevant output, the jemalloc installation is successful.

Installing a wireless network card on CentOS

In order to install a wireless network card on a CentOS system, you need to first determine the model and driver of the wireless network card. The following are the steps to install the wireless network card:

2. Use the following command to view the wireless network cards installed in the system:

lspci | grep Wireless

This will display the model and manufacturer information of the installed wireless network cards.

3. According to the model and manufacturer information of the wireless network card, download the corresponding driver from the official website.

4. Unzip the downloaded driver file.

5. Enter the decompressed directory.

6. Compile and install the driver:

make

make install

7. Load the wireless network card driver:

modprobe

is the name of the driver.

8. Configure wireless network card connection information:

vi /etc/sysconfig/network-scripts/ifcfg-

is the interface name of the wireless network card.

9. Restart the network service:

service network restart

10. Verify whether the wireless network card is successfully installed:

```

iwconfig

If there is relevant output, the wireless network card is installed successfully.

Sharing with you

Little LINUX knowledge: In a Linux system, you can use the command `uname -r` to view the version of the current system kernel. The kernel is the core of the operating system and is responsible for managing the computer. Hardware and software resources, knowing the current kernel version can be very helpful in debugging and solving problems.

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