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| 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_pedit.c | |
| parent | c15ab236d69dd6dad24541400f460c47853803f8 (diff) | |
| download | linux-65a206c01e8e7ffe971477a36419422099216eff.tar.gz linux-65a206c01e8e7ffe971477a36419422099216eff.tar.bz2 linux-65a206c01e8e7ffe971477a36419422099216eff.zip | |
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_pedit.c')
| -rw-r--r-- | net/sched/act_pedit.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index 7dc5892671c8..491fe5deb09e 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -24,8 +24,6 @@ #include <net/tc_act/tc_pedit.h> #include <uapi/linux/tc_act/tc_pedit.h> -#define PEDIT_TAB_MASK 15 - static unsigned int pedit_net_id; static struct tc_action_ops act_pedit_ops; @@ -168,17 +166,17 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla, if (IS_ERR(keys_ex)) return PTR_ERR(keys_ex); - if (!tcf_hash_check(tn, parm->index, a, bind)) { + if (!tcf_idr_check(tn, parm->index, a, bind)) { if (!parm->nkeys) return -EINVAL; - ret = tcf_hash_create(tn, parm->index, est, a, - &act_pedit_ops, bind, false); + ret = tcf_idr_create(tn, parm->index, est, a, + &act_pedit_ops, bind, false); if (ret) return ret; p = to_pedit(*a); keys = kmalloc(ksize, GFP_KERNEL); if (keys == NULL) { - tcf_hash_cleanup(*a, est); + tcf_idr_cleanup(*a, est); kfree(keys_ex); return -ENOMEM; } @@ -186,7 +184,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla, } else { if (bind) return 0; - tcf_hash_release(*a, bind); + tcf_idr_release(*a, bind); if (!ovr) return -EEXIST; p = to_pedit(*a); @@ -214,7 +212,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla, spin_unlock_bh(&p->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(tn, *a); + tcf_idr_insert(tn, *a); return ret; } @@ -432,7 +430,7 @@ static int tcf_pedit_search(struct net *net, struct tc_action **a, u32 index) { struct tc_action_net *tn = net_generic(net, pedit_net_id); - return tcf_hash_search(tn, a, index); + return tcf_idr_search(tn, a, index); } static struct tc_action_ops act_pedit_ops = { @@ -452,7 +450,7 @@ static __net_init int pedit_init_net(struct net *net) { struct tc_action_net *tn = net_generic(net, pedit_net_id); - return tc_action_net_init(tn, &act_pedit_ops, PEDIT_TAB_MASK); + return tc_action_net_init(tn, &act_pedit_ops); } static void __net_exit pedit_exit_net(struct net *net) |