How much memory could vm use

user_1030853 0
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I read the document Understanding Virtual Memory and it said one method for changing tunable parameters in the Linux VM was the command:

sysctl -w vm.max_map_count=65535

I want to know what the number 65535 means and how much memory could vm use by the setting.

linux-kernel
3 Answers
echo 'vm.max_map_count=262144' >> /etc/sysctl.conf

sysctl -p
user_4885520 
echo "vm.max_map_count=262144" >> /etc/sysctl.conf
sysctl -p

This does not work since we cannot change the configuration file directly. Run the below command.

echo vm.max_map_count=262144 | sudo tee -a /etc/sysctl.conf

But check if vm.max_map_count already exists or not. You can do that using

grep vm.max_map_count /etc/sysctl.conf
user_124674110
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