Wow, I thought the difference would be much greater than that, like 1:10.
I'll do my own tests as well to see for myself.
But this makes parsing all cached pages as ADPs looking for tags to
include other content a real possibility.
Cheers,
Bas.
Olaf Mersmann said:
> Hi Bas,
>
> Bas Scheffers wrote:
>> Has anyone ever done any test on how much of a performance hit an ADP
>> page is (asuming minimal processing, of course!) over fastpath
>> returning a static page?
>
> I did some testing that goes in this direction concering cached /
> noncached ADPs and static files. Here are the numbers that are relevant
> to your question (all this was done on an aging Sun Ultra 2, so the abs.
> numbers are pretty low).
>
> The tests where run with Apaches 'ab' utility with 10000 requests and 4
> concurrent threads (ab -n 10000 -c 4 $url) and the document length was
> 3053 bytes.
>
> Static html file:
> -----------------------------------------------------------------
> Requests per second: 446.21 [#/sec] (mean)
> Time per request: 8.964 [ms] (mean)
> Time per request: 2.241 [ms] (mean, across all concurrent
> requests)
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 0 0 0.6 0 37
> Processing: 2 7 2.7 7 94
> Waiting: 0 4 2.7 5 93
> Total: 2 7 2.8 7 94
>
>
> Same file wrapped in an ADP (<% ns_adp_puts {....} %>):
> -----------------------------------------------------------------
> Requests per second: 290.69 [#/sec] (mean)
> Time per request: 13.760 [ms] (mean)
> Time per request: 3.440 [ms] (mean, across all concurrent
> requests)
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 0 0 0.2 0 7
> Processing: 2 12 6.8 13 246
> Waiting: 0 6 6.7 5 244
> Total: 2 12 6.8 13 246
>
> Doubeling the file size changes little.
>
> Static html file:
> -----------------------------------------------------------------
> Requests per second: 464.74 [#/sec] (mean)
> Time per request: 8.607 [ms] (mean)
> Time per request: 2.152 [ms] (mean, across all concurrent
> requests)
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 0 0 0.3 0 7
> Processing: 2 7 3.0 7 115
> Waiting: 0 4 2.9 5 115
> Total: 3 7 3.1 7 115
>
> Same file wrapped in an ADP (<% ns_adp_puts {....} %>):
> -----------------------------------------------------------------
> Requests per second: 273.17 [#/sec] (mean)
> Time per request: 14.643 [ms] (mean)
> Time per request: 3.661 [ms] (mean, across all concurrent
> requests)
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 0 0 0.2 0 9
> Processing: 2 13 11.9 13 409
> Waiting: 0 6 11.0 5 353
> Total: 2 13 11.9 13 409
>
> HTH
>
> -- Olaf
>
>
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