what is APC internal debugging?

php apc
ThinkingMonkey picture ThinkingMonkey · Jan 2, 2012 · Viewed 7.2k times · Source

I got a prompt with Enable internal debugging in APC [no]:. While installing APC.

  • what is APC internal debugging?
  • Is is better to keep it enabled?

Tried to do a search but couldn't find an answer!

Answer

phihag picture phihag · Jan 2, 2012

This message comes from the pear package of APC. If you set it, APC will be configured with the --enable-apc-debug flag, which means the macro __DEBUG_APC__ is set in the C source code.

This macro will add additional printfs about APC's internal state. Naturally, these are only useful in a testing environment, and should never be activated on a public webserver.

Unless you're editing APC's source code, or tracking down an extremely low-level problem in APC (which is unlikely), you should answer no. You can just hit Enter.

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