January 2020
Intermediate to advanced
532 pages
13h 31m
English
Content preview from Hands-On Design Patterns and Best Practices with Julia
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Configuring a shared memory device
It is not enough to just change the system limits as shown in the preceding section. The Linux kernel actually uses the /dev/shm device as an in-memory backing store for shared memory. We can find out the size of the device using the regular df command:
At the current state, the /dev/shm device is unused as shown in the preceding. The overall size of the block device is 16 GiB. As an exercise, let's now open a Julia REPL and create SharedArray:
Re-running the df command, we can see that /dev/shm is now used: ...
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