Re: [libvirt] [PATH v9 12/12] Resctrl: Add nodecachestats
On Thu, Mar 02, 2017 at 11:24:00PM -0300, Marcelo Tosatti wrote:
On Mon, Feb 27, 2017 at 03:22:56PM +0800, Eli Qiao wrote:
> Add new virsh command line `nodecachestats` to expose the cache usage
> on a node.
Testing:
Setup: one guest with 3072 bytes reserved for it.
Test-1: start libvirt with free cache.
resctrlfs default: L3:0=fffff;1=fffff
# LD_LIBRARY_PATH=/root/git/libvirt/src/.libs/ ./virshnodegetcachestats
ret=0 nparams=10
L3.0: 13824
L3.1: 13824
The program does:
ret = virNodeGetCacheStats(conn, ptr, &nparams, 0);
fprintf(stdout, "ret=%d nparams=%d\n", ret, nparams);
w = ptr;
for (i=0; i<nparams; i++) {
printf("%s: %d\n", w->field, w->value);
w++;
}