[+] Re: Breaking Varnish

[Niall O'Higgins]

On Wed, Jan 28, 2009 at 10:18:48AM -0800, Michael S. Fischer wrote:
> On Jan 28, 2009, at 10:04 AM, Niall O'Higgins wrote:
>>> This is a typical indication of raw overload, what levels of traffic
>>> are you hitting it with ?
>>
>> This kind of thing:
>>
>> Transaction rate:            3776.65 trans/sec
>> Throughput:                     1.68 MB/sec
>> Concurrency:                   28.28
>
> That doesn't seem that high.  What OS/# CPUs are you using?

Varnish is running on a dual CPU (amd64) Linux 2.6 machine.  We have
pushed it up to 6701 t/sec with multiple load-generation machines.  We
see the same child-restart behaviour whether we use a single
load-generation machine, or three.

>
> --Michael
>

-- 
Niall O'Higgins
Software Engineer
Metaweb Technologies, Inc.