The amount of Shared memory being utilized:
#> df -h /dev/shm
Filesystem Size Used Avail Use% Mounted on
tmpfs 125G 96G 30G 77% /dev/shm
The max amount of shared memory system-wide, set by the SHMALL kernel parameter:
ipcs -lm | grep shared
max total shared memory (kbytes) = 67108864
Question: How is this possible? How can the max total shared memory be set to 64GB in the kernel, but df
is reporting that 96G shared memory is being used?