mjgu...@gmail.com (Mateusz Guzik) writes: >> While vnodes would be recyclable, they hardly get recycled unless >> an filesystem object is deleted or the filesystem is unmounted.
>They get recycled all the time by vdrain thread if numvnodes goes above >desiredvnodes, like it does in this test. They should also be recycled when memory gets tight but they aren't. As a consequence, not only the vnodes stay in memory, but also all cached pages (the UVM objects). >> Without swap, the kernel also has no chance to evict process pages >> to grow the vnode cache further. >It should not be trying to grow the vnode cache. If anything it should >stop it from blowing out of proportion and definitely should not kill >processes in presence of swaths of immediately freeable vnodes. As long as you don't exceed maxvnodes (a value that got larger in netbsd-10), almost nothing is freed.
