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YanhaoYang/shared-memory.txt

Last active December 31, 2015 17:19
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Increase shared memory in Linux
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shared-memory.txt
# 16 GB shared memory
$ sysctl -w kernel.shmmax=17179869184
# A page is almost always 4096 bytes except in unusual kernel configurations with "huge pages" (use getconf PAGE_SIZE to verify).
$ sysctl -w kernel.shmall=4194304
To preserve the settings between reboots, in /etc/sysctl.conf:
kernel.shmmax=17179869184
kernel.shmall=4194304
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