I found my df command says the following:$ dfFilesystem     1K-blocks     Used Available Use% Mounted onudev            31428656        0  31428656   0% /devtmpfs            6288016     9136   6278880   1% /run/dev/xvda1      60923900 21887760  39019756  36% /tmpfs           31440072        0  31440072   0% /dev/shmtmpfs               5120        0      5120   0% /run/locktmpfs           31440072        0  31440072   0% /sys/fs/cgrouptmpfs            6288016        0   6288016   0% /run/user/1000Is any of tmpfs a ramdrive? Can I just use /dev/shm for my program temp-file storage? Is this ramdrive (very fast)?
Is there ramdrive on AWS EC2 instance by default?
amazon ec2;tmpfs;ramdisk