On Mon, Mar 06, 2017 at 05:50:43PM +0800, Eli Qiao wrote:
Add new virsh command line `nodecachestats` to expose the cache usage on a node.
Signed-off-by: Eli Qiao <liyong.qiao@intel.com> --- src/libvirt_private.syms | 3 ++- src/qemu/qemu_driver.c | 12 ++++++++++ src/util/virresctrl.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++ src/util/virresctrl.h | 8 +++++++ tools/virsh-host.c | 49 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 133 insertions(+), 1 deletion(-)
It perhaps would be good to also report the largest contiguous region available: So that if the space is fragmented, management software can detect the situation beforehand. Like this perhaps: # LD_LIBRARY_PATH=/root/git/libvirt/src/.libs/ # /root/git/virshnodegetcachestats ret=0 nparams=10 L3.0: free=11520, max_contiguous=X. L3.1: free=11520, max_contiguous=X. Or: L3.0.free: 11520 L3.0.max_contiguous=X. L3.1.free: 11520 L3.1.max_contiguous=X. Not sure what is the preferred way to do this in libvirt. Otherwise, testing looks good now.