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interface: re-use name and mac address rather than re-retrieving

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Getting the MAC address of an interface is actually fairly expensive,
and we've already gotten it and stored it into def, so just keep def
around a bit longer and retrieve it from there.

This reduces the time for "virsh iface-list --all" from 28 to 23
seconds when there are 400 interfaces.
This commit is contained in:
Laine Stump 2015-09-18 13:19:27 -04:00
parent 6fda6699e5
commit 070732735f
1 changed files with 6 additions and 6 deletions
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12
src/interface/interface_backend_netcf.c
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@ -583,6 +583,7 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
for (i = 0; i < count; i++) {
virInterfaceDefPtr def;
iface = ncf_lookup_by_name(driver->netcf, names[i]);
if (!iface) {
const char *errmsg, *details;
@ -615,27 +616,26 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
virInterfaceDefFree(def);
continue;
}
virInterfaceDefFree(def);
/* XXX: Filter the result, need to be split once new filter flags
* except active|inactive are supported.
*/
if (MATCH(VIR_CONNECT_LIST_INTERFACES_FILTERS_ACTIVE) &&
!((MATCH(VIR_CONNECT_LIST_INTERFACES_ACTIVE) && active) ||
(MATCH(VIR_CONNECT_LIST_INTERFACES_INACTIVE) && !active))) {
virInterfaceDefFree(def);
ncf_if_free(iface);
iface = NULL;
continue;
}
if (ifaces) {
if (!(iface_obj = virGetInterface(conn, ncf_if_name(iface),
ncf_if_mac_string(iface))))
if (!(iface_obj = virGetInterface(conn, def->name, def->mac)))
goto cleanup;
tmp_iface_objs[niface_objs] = iface_obj;
}
niface_objs++;
virInterfaceDefFree(def);
ncf_if_free(iface);
iface = NULL;
}
@ -698,7 +698,7 @@ static virInterfacePtr netcfInterfaceLookupByName(virConnectPtr conn,
if (virInterfaceLookupByNameEnsureACL(conn, def) < 0)
goto cleanup;
ret = virGetInterface(conn, ncf_if_name(iface), ncf_if_mac_string(iface));
ret = virGetInterface(conn, def->name, def->mac);
cleanup:
ncf_if_free(iface);
@ -746,7 +746,7 @@ static virInterfacePtr netcfInterfaceLookupByMACString(virConnectPtr conn,
if (virInterfaceLookupByMACStringEnsureACL(conn, def) < 0)
goto cleanup;
ret = virGetInterface(conn, ncf_if_name(iface), ncf_if_mac_string(iface));
ret = virGetInterface(conn, def->name, def->mac);
cleanup:
ncf_if_free(iface);