Created
August 27, 2013 14:59
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Log node.js http server response times and output it's distribution on exit.
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| [root@market1 ~]# ./request_time.d | |
| Request took 275 ms to complete /users/ubf4a1949-bb12-484a-80c5-ef7d079933e8/entitlement/edf627d85-f6bc-485c-a387-65b32bf4d231/token | |
| Request took 278 ms to complete /users/ubf4a1949-bb12-484a-80c5-ef7d079933e8/entitlement/edf627d85-f6bc-485c-a387-65b32bf4d231/token | |
| Request took 286 ms to complete /users/u07edf558-8f50-4963-992a-728f56e49590/entitlement/e3afec1f9-ed01-4444-b7b9-6e90cf573e17/token | |
| Request took 163 ms to complete /users/u7716cbc1-e0b9-4fab-b705-43d74aad9541/entitlement/ed89cf626-28c3-48ee-84d0-964726a9caef/token | |
| Request took 1 ms to complete /organization/oz/catchup/content/26cf243fda948f68430942993257746b | |
| Request took 3 ms to complete /organization/oz/catchup/content/26cf243fda948f68430942993257746b | |
| Request took 0 ms to complete /organization/oz/catchup/content/a61d78c15d3aecf8982e097ff8f74d2f | |
| Request took 2 ms to complete /organization/oz/catchup/content/a61d78c15d3aecf8982e097ff8f74d2f | |
| Request took 3 ms to complete /organization/oz/catchup/content/a61d78c15d3aecf8982e097ff8f74d2f | |
| Request took 1 ms to complete /organization/oz/catchup/content/26cf243fda948f684309429932588229 | |
| Request took 2 ms to complete /organization/oz/catchup/content/7ce0e55f01a21bf9128f4152467d5594 | |
| Request took 1 ms to complete /organization/oz/catchup/content/bb7afe745922e3546569f5d3685bbd3e | |
| Request took 2 ms to complete /organization/oz/catchup/content/bb7afe745922e3546569f5d3685bbd3e | |
| Request took 1 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151c34eff | |
| Request took 0 ms to complete /organization/oz/catchup/content/543e02b84b09d16436ba7eba9025cd60 | |
| Request took 1 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 3 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 4 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 6 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 11 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 12 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 13 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 14 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 15 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 15 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 17 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 18 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 19 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 31 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 32 ms to complete /organization/oz/catchup/content/0a0e5775c4a127572691b6d151ac518e | |
| Request took 194 ms to complete /users/u07edf558-8f50-4963-992a-728f56e49590/entitlement/e0e89b850-86a4-4252-acf1-7f720213256b/token | |
| Request took 240 ms to complete /users/u07edf558-8f50-4963-992a-728f56e49590/entitlement/e0e89b850-86a4-4252-acf1-7f720213256b/token | |
| ^X^C | |
| value ------------- Distribution ------------- count | |
| -1 | 0 | |
| 0 |@@ 2 | |
| 1 |@@@@ 5 | |
| 2 |@@@@@ 6 | |
| 4 |@@ 2 | |
| 8 |@@@@@ 6 | |
| 16 |@@@@@@@@@@@@@@@@ 18 | |
| 32 |@ 1 | |
| 64 | 0 | |
| 128 |@@@ 3 | |
| 256 |@@@ 3 | |
| 512 | 0 | |
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| #!/usr/sbin/dtrace -Cs | |
| #pragma D option quiet | |
| node*:::http-server-request { | |
| latency[args[1]->fd] = timestamp; | |
| url[args[1]->fd] = args[0]->url; | |
| } | |
| node*:::http-server-response { | |
| printf("Request took %d ms to complete %s \n", | |
| (timestamp - latency[args[0]->fd]) / 1048576, | |
| url[args[0]->fd] | |
| ); | |
| @ = quantize( (timestamp - latency[args[0]->fd]) / 1048576 ); | |
| } |
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