[Info-vax] Apache + mod_php performance

Arne Vajhøj arne at vajhoej.dk
Wed Oct 2 10:00:02 EDT 2024


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.

Arne



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