Call to Benchmark PSGI!

Denis Roy denis.roy at
Wed Jan 20 13:33:28 UTC 2016

We've been using 300_000 as the magic number for years now, and I find
bz performance to be quite acceptable. We do have three web heads though.

I can't wait to see your benchmark against psgi.


On 01/20/2016 12:17 AM, Dylan Hardison wrote:
> I knew these numbers were too good to be true -- it turns out the
> stock mod_perl config has such a low Apache::SizeLimit that the
> process gets killed after a few requests. I've re-opened
> and the new
> default will be a more more reasonable 250_000.
> I'm still keen on benchmarks, and I'll post my revised ones shortly. I
> recommend editing and setting the size limit to 250_000 or
> 750_000,
> or wait for Bug 731589 to land.
> On Tue, Jan 19, 2016 at 12:33 PM, Dylan Hardison <dylan at> wrote:
>> I think PSGI is *ridiculously* faster than mod_perl
>> Given a simple benchmark of calling apache bench against show_bug?id=1
>> (with a simple testing db, mind you) I get 12 requests a second under PSGI
>> (using HTTP::Server::PSGI) and 4 requests/second with mod_perl
>> So mod_perl is about twice as fast CGI, but PSGI is three times faster
>> than mod_perl.
>> So a call to people out there that have a working mod_perl setup ---
>> please benchmark
>> master on both mod_perl and PSGI and post the results here!
>> Regards,
>> Dylan.
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