diff options
| author | Chris Mi <chrism@mellanox.com> | 2017-08-30 02:31:59 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-30 14:38:51 -0700 |
| commit | 65a206c01e8e7ffe971477a36419422099216eff (patch) | |
| tree | ea72c10c42996dc7d070968d45d86880fde71fac /net/sched/act_gact.c | |
| parent | c15ab236d69dd6dad24541400f460c47853803f8 (diff) | |
net/sched: Change act_api and act_xxx modules to use IDR
Typically, each TC filter has its own action. All the actions of the
same type are saved in its hash table. But the hash buckets are too
small that it degrades to a list. And the performance is greatly
affected. For example, it takes about 0m11.914s to insert 64K rules.
If we convert the hash table to IDR, it only takes about 0m1.500s.
The improvement is huge.
But please note that the test result is based on previous patch that
cls_flower uses IDR.
Signed-off-by: Chris Mi <chrism@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_gact.c')
| -rw-r--r-- | net/sched/act_gact.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index 99afe8b1f1fb..e29a48ef7fc3 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -23,8 +23,6 @@ #include <linux/tc_act/tc_gact.h> #include <net/tc_act/tc_gact.h> -#define GACT_TAB_MASK 15 - static unsigned int gact_net_id; static struct tc_action_ops act_gact_ops; @@ -92,16 +90,16 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, } #endif - if (!tcf_hash_check(tn, parm->index, a, bind)) { - ret = tcf_hash_create(tn, parm->index, est, a, - &act_gact_ops, bind, true); + if (!tcf_idr_check(tn, parm->index, a, bind)) { + ret = tcf_idr_create(tn, parm->index, est, a, + &act_gact_ops, bind, true); if (ret) return ret; ret = ACT_P_CREATED; } else { if (bind)/* dont override defaults */ return 0; - tcf_hash_release(*a, bind); + tcf_idr_release(*a, bind); if (!ovr) return -EEXIST; } @@ -122,7 +120,7 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, } #endif if (ret == ACT_P_CREATED) - tcf_hash_insert(tn, *a); + tcf_idr_insert(tn, *a); return ret; } @@ -214,7 +212,7 @@ static int tcf_gact_search(struct net *net, struct tc_action **a, u32 index) { struct tc_action_net *tn = net_generic(net, gact_net_id); - return tcf_hash_search(tn, a, index); + return tcf_idr_search(tn, a, index); } static struct tc_action_ops act_gact_ops = { @@ -234,7 +232,7 @@ static __net_init int gact_init_net(struct net *net) { struct tc_action_net *tn = net_generic(net, gact_net_id); - return tc_action_net_init(tn, &act_gact_ops, GACT_TAB_MASK); + return tc_action_net_init(tn, &act_gact_ops); } static void __net_exit gact_exit_net(struct net *net) |