If an application is POSIX compliant or it uses GLIBC (2.2 and above) on a Red Hat Enterprise Linux system, it will usually use the
/dev/shm for shared memory (shm_open, shm_unlink).
/dev/shm is a temporary filesystem (tmpfs) which is mounted from
/etc/fstab. Hence the standard options like "size" supported for tmpfs can be used to increase or dec...
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