Re: osmo-bts / osmo-pcu profiling results

Hi,

On 07.12.2015 09:25, Holger Freyther wrote:

...

On 07 Dec 2015, at 09:12, Harald Welte laforge@gnumonks.org wrote:

• vfprintf() and friends, from logp() statements. The sad part is that

calls like gsm_lchan_name() are of course executed beefore the call into logp(), at which point the vfprintf/sprintf/... for arguments has already been executed, and only the last/final one hasn't happened yet.

Jacob has proposed (and I think maybe included) a patch to check if logging is enabled for any target before making the call (and passing the arguments)

This is contained in the "log: Add log_check_level function" series of patches posted on Nov 17. In first tests it hast reduced the process load by 10-20% (relative to PCU load).

Jacob