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Real-time display of kernel slab buffer information using linux's slabtop command

2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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Do not know how to use linux's slabtop command to display kernel slab buffer information in real time? In fact, it is not difficult to solve this problem. Let the editor take you to learn how to solve it. I hope you will gain a lot after reading this article.

The command of the slabtop command displays the details of the kernel "slab" buffer in real time.

The linux kernel needs to allocate memory for temporary objects such as tasks or device structures and nodes, and the cache allocator manages the caching of these types of objects. The modern linux kernel deploys this cache allocator to hold the cache, which is called a slice. Different types of chip caches are maintained by the chip allocator. The function of the slabtop command is to display real-time kernel chip cache information.

The slabtop command can only be used in linux kernels with version 2.4 or later. Root permission is required to use this command.

Syntax format: slabtop [parameters]

Common parameters:

-d updates the displayed information every n seconds. The default is to specify sorting criteria for sorting every 3 seconds-o display once and then exit-V display version-help display help information

Reference example

Displays kernel slab cache information:

[root@linuxcool ~] # slabtop

Refresh and display slab buffer information every ten seconds:

[root@linuxcool] # slabtop-d 10

Output information only once:

[root@linuxcool] # slabtop-o Thank you for reading this article carefully. I hope it is helpful for everyone to share and use linux's slabtop command to display kernel slab buffer information in real time. At the same time, I also hope you can support us, pay attention to the industry information channel, and find out if you encounter problems. Detailed solutions are waiting for you to learn!

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