We have issue with tempfs filesystem on redhat Linux box.
Memory = 20GB
SWAP = 41 GB
tmpfs = 11 Gb
Some times the tmpfs (/dev/shm) is filled up with 90 to 95 % and SAP application responding very very slow.
1. How exactly shared memory is works?
2. What is thumb rule for creating shared memory ?
3. What is solution for above issue?