ほんとに速いのかなぁ
AS9597なホストからつついてみるよ
参考までにlocalなunbound
$ time for i in {0..99};do dig @127.0.0.1 +rec +tcp +noall +stats . soa ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 100 ;; Query time: 0 msec real 0m1.926s user 0m1.079s sys 0m0.676s
time for i in {0..99};do dig @127.0.0.1 +rec +tcp +noall +stats . rrsig ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 100 ;; Query time: 0 msec real 0m2.028s user 0m1.094s sys 0m0.662s
しっかりキャッシュに乗せて(予備実行10回)google public dns
$ time for i in {0..99};do dig @8.8.8.8 +rec +tcp +noall +stats . soa ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 97 ;; Query time: 1 msec 2 ;; Query time: 2 msec 1 ;; Query time: 5 msec real 0m2.272s user 0m1.107s sys 0m0.717s
time for i in {0..99};do dig @8.8.8.8 +rec +tcp +noall +stats . rrsig ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 95 ;; Query time: 1 msec 3 ;; Query time: 2 msec 1 ;; Query time: 4 msec 1 ;; Query time: 5 msec real 0m2.321s user 0m1.135s sys 0m0.706s
しっかりキャッシュに乗せて(予備実行10回)cloudflare public dns
$ time for i in {0..99};do dig @1.1.1.1 +rec +tcp +noall +stats . soa ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 73 ;; Query time: 1 msec 26 ;; Query time: 2 msec 1 ;; Query time: 4 msec real 0m2.360s user 0m1.142s sys 0m0.700s
$ time for i in {0..99};do dig @1.1.1.1 +rec +tcp +noall +stats . rrsig ;done|grep -e ";; Query time: .* msec"|sort -k4n|uniq -c 22 ;; Query time: 3 msec 2 ;; Query time: 5 msec 13 ;; Query time: 6 msec 17 ;; Query time: 7 msec 13 ;; Query time: 8 msec 3 ;; Query time: 9 msec 1 ;; Query time: 47 msec 3 ;; Query time: 157 msec 3 ;; Query time: 161 msec 7 ;; Query time: 162 msec 1 ;; Query time: 172 msec 1 ;; Query time: 216 msec 2 ;; Query time: 217 msec 1 ;; Query time: 221 msec 1 ;; Query time: 313 msec 5 ;; Query time: 324 msec 3 ;; Query time: 325 msec 1 ;; Query time: 326 msec 1 ;; Query time: 331 msec real 0m9.739s user 0m1.244s sys 0m0.949s
ふにゅぅ
現状びみょい