[Info-vax] Apache + mod_php performance

Dan Cross cross at spitfire.i.gajendra.net
Wed Oct 2 10:32:11 EDT 2024


In article <vdjjl2$37f8q$1 at dont-email.me>,
Arne Vajhøj  <arne at vajhoej.dk> wrote:
>On 10/2/2024 9:45 AM, Dave Froble wrote:
>> On 9/30/2024 9:25 PM, Arne Vajhøj wrote:
>>> On 9/30/2024 9:10 PM, Dave Froble wrote:
>>>> Granted, starting up a new process involves some overhead.
>>>>
>>>> But it really depends upon the requirements.  The more use out of a 
>>>> process
>>>> once it is started, the better overall performance.  If a group of 
>>>> worker
>>>> processes is started once, then used for many tasks, then that overhead
>>>> happens only once.  Perhaps once a day, week, month, and even year.  
>>>> There are
>>>> various communication methods available on VMS.
>>>>
>>>> In the end, it comes down to the requirements.  An engineer must 
>>>> evaluate the
>>>> task(s) and determine what methods will give adequate results.
>>>
>>> There are obviously a scale.
>>>
>>> But the Apache case is to start with 5 processes, start 145 new
>>> processes in a few seconds and then kill 140 again after maybe
>>> 30-45 seconds. And repeat.
>> 
>> Perhaps the real problem is using a poorly designed application, 
>> regardless of how popular it might be?
>
>Or taking code designed for a different OS and expecting
>it to work on another OS.

I don't see any evidence that leads me to believe that was
actually a problem.  I do see evidence that you assumed there
was a problem where, in fact, one did not exist, and that you
failed to investigate sufficiently before jumping to
conclusions.

	- Dan C.



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