e54c232c8c
Make the cache memory bounded, by using a LRU cache. Also split the
cache in a positive and negative one - each with its own controls.
Extend the cache stanza to allow for this:
cache {
positive limit [ttl]
negative limit [ttl]
}
is now possible. This also add a cache_test.go in the toplevel test/
directory that exercises the caching path.
Fixes #260
44 lines
788 B
Go
44 lines
788 B
Go
package test
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"log"
|
|
"testing"
|
|
|
|
"github.com/miekg/coredns/middleware/test"
|
|
|
|
"github.com/miekg/dns"
|
|
)
|
|
|
|
func benchmarkLookupBalanceRewriteCache(b *testing.B) {
|
|
t := new(testing.T)
|
|
name, rm, err := test.TempFile(t, ".", exampleOrg)
|
|
if err != nil {
|
|
t.Fatalf("failed to created zone: %s", err)
|
|
}
|
|
defer rm()
|
|
|
|
corefile := `example.org:0 {
|
|
file ` + name + `
|
|
rewrite ANY HINFO
|
|
loadbalance
|
|
}
|
|
`
|
|
|
|
ex, err := CoreDNSServer(corefile)
|
|
if err != nil {
|
|
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
|
|
}
|
|
udp, _ := CoreDNSServerPorts(ex, 0)
|
|
defer ex.Stop()
|
|
|
|
log.SetOutput(ioutil.Discard)
|
|
c := new(dns.Client)
|
|
m := new(dns.Msg)
|
|
m.SetQuestion("example.org.", dns.TypeA)
|
|
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
c.Exchange(m, udp)
|
|
}
|
|
}
|