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bgpd: Remove memset from bgp_zebra_announce

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During perf testing of receiving and installing 7.5 million
routes into zebra it was noticed that memset in bgp_zebra_announce
was taking ~11% of the runtime.  With this change bgp_zebra_announce
now no longer has any appreciable time spent in memset as reported
by perf.  In addition bgp_zebra_announce run time in perf was
reduced by a composite amount.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2020-07-17 10:07:17 -04:00
parent 7d4b857955
commit 7cc27d418f
1 changed files with 1 additions and 2 deletions
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3
bgpd/bgp_zebra.c
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@ -1178,7 +1178,7 @@ void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
safi_t safi)
{
struct zapi_route api;
struct zapi_route api = { 0 };
struct zapi_nexthop *api_nh;
int nh_family;
unsigned int valid_nh_count = 0;
@ -1224,7 +1224,6 @@ void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
nh_othervrf = 1;
/* Make Zebra API structure. */
memset(&api, 0, sizeof(api));
api.vrf_id = bgp->vrf_id;
api.type = ZEBRA_ROUTE_BGP;
api.safi = safi;