Symptoms

  1. An NG Apache Shared Hosting service template is created with webspace bandwidth set to a large value >16 Gbit/s.
  2. A subscription is provisioned based on this service template.
  3. The resulting website hosted in the subscription shows terrible performance, the loading times for a simple HTML page reach several seconds.

  4. strace on loading the slow web page show the following delay patterns:

    2652  06:48:10.437507 select(0, NULL, NULL, NULL, {1, 0}) = 0 (Timeout) <1.000631>
2652  06:48:11.438238 select(0, NULL, NULL, NULL, {1, 0}) = 0 (Timeout) <1.000980>
2652  06:48:12.439374 select(0, NULL, NULL, NULL, {0, 246093}) = 0 (Timeout) <0.246485>

Cause

The issue is acknowledged as POA-110580: Webspace bandwidth limit > 16 Gbit/s kills performance of websites.

Resolution

Set the service template bandwidth to a value lower than 16 Gbit/s or set it to unlimited.

Internal content