1. Currently, each cli command take ~5 secs for execution. The Maximum
latency is due to initializing a glfs object (glfs_init() and friends).
2. OOM kills due to glfs_fini() leaks (~10MB per object)
Caching bipasses glfs_init() calls from the very next command, as in the first
command it goes via the glfs_init route, since there will be cache miss.
Hence with caching cli command on a local machine should take ~1 sec.
ATM, the cache query looks at the volume name only, as the host name will be
localhost in our case and transport will be tcp 24007 always.
The default cache capacity is 5 i.e there can be a max of five glfs entries in
the cache, anything more will lead to release of least recently used object.
This way, if there are <= 5 volume in use for block, there will be no
glfs_fini() calls, hence no leaks, no OOM's.
The next patch will help in making cache capacity configurable.
Signed-off-by: Prasanna Kumar Kalever <firstname.lastname@example.org>
[ndevos: correct compiling+linking against libgfapi.so]