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I have a web application written in Laravel / PHP that is in the early stages and generally serves about 500 - 600 reqs/min. We use Maria DB and Redis for caching and everything is on AWS.

For events we want to promote on our platform, we send out a push notification (mobile platform) to all users which results in a roughly 2-min long traffic burst that takes us to 3.5k reqs/min

At our current server scale, this completely bogs down the application servers' CPU which usually operate at around 10% CPU. The Databases and Redis clusters seem fine during this burst.

Looking at the logs, it seems all PHP-FPM worker pool processes get occupied and begin queuing up requests from the Nginx upstream.

We currently have:

• three m4.large servers (2 cores, 8gb RAM each)




• dynamic PHP-FPM process management, with a max of 120 child processes (servers)on each box

My questions:

1) Should we increase the FPM pool? It seems that memory-wise, we're probably nearing our limit

2) Should we decrease the FPM pool? It seems possible that we're spinning up so many process that the CPU is getting bogged down and is unable to really complete any of them.

3) Should we simply use larger boxes with more RAM and CPU, which will allow us to add more FPM workers?

4) Is there any FPM performance tuning that we should be considering? We use Opcache, however, should we switch to static process management for FPM to cut down on the overhead of processes spinning up and down?

php amazon-web-services performance

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asked 3 mins ago

djtdjt

101

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djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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0

I have a web application written in Laravel / PHP that is in the early stages and generally serves about 500 - 600 reqs/min. We use Maria DB and Redis for caching and everything is on AWS.

For events we want to promote on our platform, we send out a push notification (mobile platform) to all users which results in a roughly 2-min long traffic burst that takes us to 3.5k reqs/min

At our current server scale, this completely bogs down the application servers' CPU which usually operate at around 10% CPU. The Databases and Redis clusters seem fine during this burst.

Looking at the logs, it seems all PHP-FPM worker pool processes get occupied and begin queuing up requests from the Nginx upstream.

We currently have:

• three m4.large servers (2 cores, 8gb RAM each)




• dynamic PHP-FPM process management, with a max of 120 child processes (servers)on each box

My questions:

1) Should we increase the FPM pool? It seems that memory-wise, we're probably nearing our limit

2) Should we decrease the FPM pool? It seems possible that we're spinning up so many process that the CPU is getting bogged down and is unable to really complete any of them.

3) Should we simply use larger boxes with more RAM and CPU, which will allow us to add more FPM workers?

4) Is there any FPM performance tuning that we should be considering? We use Opcache, however, should we switch to static process management for FPM to cut down on the overhead of processes spinning up and down?

php amazon-web-services performance

share

asked 3 mins ago

djtdjt

101

New contributor

djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I have a web application written in Laravel / PHP that is in the early stages and generally serves about 500 - 600 reqs/min. We use Maria DB and Redis for caching and everything is on AWS.

For events we want to promote on our platform, we send out a push notification (mobile platform) to all users which results in a roughly 2-min long traffic burst that takes us to 3.5k reqs/min

At our current server scale, this completely bogs down the application servers' CPU which usually operate at around 10% CPU. The Databases and Redis clusters seem fine during this burst.

Looking at the logs, it seems all PHP-FPM worker pool processes get occupied and begin queuing up requests from the Nginx upstream.

We currently have:

• three m4.large servers (2 cores, 8gb RAM each)




• dynamic PHP-FPM process management, with a max of 120 child processes (servers)on each box

My questions:

1) Should we increase the FPM pool? It seems that memory-wise, we're probably nearing our limit

2) Should we decrease the FPM pool? It seems possible that we're spinning up so many process that the CPU is getting bogged down and is unable to really complete any of them.

3) Should we simply use larger boxes with more RAM and CPU, which will allow us to add more FPM workers?

4) Is there any FPM performance tuning that we should be considering? We use Opcache, however, should we switch to static process management for FPM to cut down on the overhead of processes spinning up and down?

php amazon-web-services performance

share

asked 3 mins ago

djtdjt

101

New contributor

djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 3 mins ago

djtdjt

101

New contributor

djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 3 mins ago

djtdjt

101

New contributor

djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 3 mins ago

djtdjt

101

New contributor

djt is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 3 mins ago

djtdjt

101